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Yan T, Liang M, Peng J, Yu Q, Li Y, Yang J, Zhang S, Wang C. Cortical Mechanisms Underlying Effects of Repetitive Peripheral Magnetic Stimulation on Dynamic and Static Postural Control in Patients with Chronic Non-Specific Low Back Pain: A Double-Blind Randomized Clinical Trial. Pain Ther 2024; 13:953-970. [PMID: 38896200 PMCID: PMC11255159 DOI: 10.1007/s40122-024-00613-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Accepted: 05/09/2024] [Indexed: 06/21/2024] Open
Abstract
INTRODUCTION Patients with chronic non-specific low back pain (CNLBP) often experience impaired postural control, contributing to pain recurrence. Although repetitive peripheral magnetic stimulation (rPMS) combined with core muscle training (CMT) could improve postural control, its neural mechanism remains unclear. This study aims to investigate the postural control-related cortical mechanism of the effect of rPMS on patients with CNLBP. METHODS This unicentric, prospective, randomized, double-blind, controlled trial was conducted in a public hospital from May to December 2023. A total of 40 patients (27 females and 13 males, mean age 29.38 ± 7.72) with CNLBP were randomly assigned to either the rPMS group (real rPMS with CMT) or the sham-rPMS group (sham-rPMS with CMT) for 12 sessions over 4 weeks. The rPMS was applied to the lumbar paravertebral multifidus muscle on the painful side. Pain and disability were quantified using the visual analog scale (VAS) and Oswestry dysfunction index (ODI) pre- and post-intervention. Furthermore, the sway area and velocity of the center of pressure (COP) were measured using a force platform. The cortical activities in 6 regions of interest during 4 tasks (standing with eyes open/closed on a stable/unstable plane) were recorded by functional near-infrared spectroscopy (fNIRS) pre- and post-intervention. The repeated measure ANOVA was applied for statistical analysis. Spearman's correlation was used to determine the relationships between variables. RESULTS After the intervention, the rPMS group showed decreased pain intensity (p = 0.001) and sway area (unstable eyes-closed task) (p = 0.046) compared to the sham-rPMS group. Additionally, the rPMS group exhibited increased activation in left primary motor cortex (M1) (p = 0.042) and reduced in left supplementary motor area (SMA) (p = 0.045), whereas the sham-rPMS group showed no significant changes. The increased activation of left M1 was negatively correlated to the reduction of pain intensity (r = - 0.537, p = 0.018) and sway area (r = - 0.500, p = 0.029) under the static balancing task. Furthermore, there was a positive correlation between sway velocity and VAS (r = 0.451, p = 0.046) post-rPMS intervention. CONCLUSION Repetitive peripheral magnetic stimulation combined with core muscle training demonstrated better analgesic effects and postural control improvements, compared to sham-stimulation. This may be attributed to the increased activation of the left primary motor cortex. CLINICAL TRIAL REGISTRATION The trial was registered on ClinicalTrials.gov (ChiCTR2300070943).
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Affiliation(s)
- Takyu Yan
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Meizhen Liang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jiahui Peng
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Qiuhua Yu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yan Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jiajia Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Siyun Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Chuhuai Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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Athanasakis P, Nikodelis T, Panoutsakopoulos V, Mylonas V, Loizidis T, Koutlianos NA, Kollias IA. Acute effect of dry needling on trunk kinematics and balance of patients with non-specific low back pain. J Bodyw Mov Ther 2024; 39:24-31. [PMID: 38876633 DOI: 10.1016/j.jbmt.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 01/18/2024] [Accepted: 02/25/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Limited knowledge exists about the effectiveness of dry needling (DN) concerning the torso kinematics in patients with non-specific low back pain (NS-LBP). Acute effects of DN in NS-LBP patients from a functional perspective were investigated. METHODS Sixteen NS-LBP patients and 11 healthy individuals (HG) were examined. NS-LBP patients received a single session of DN at the lumbar region. Baseline and immediate post-treatment measurements during flexion-extension and lateral bending of the trunk were conducted for the NS-LBP patients. HG were measured only at baseline to be used as a reference of NS-LBP patients' initial condition. Algometry was applied in NS-LBP patients. Centre of pressure, range of motion of the trunk and its' derivatives were obtained. FINDINGS HG performed significantly faster, smoother and with greater mobility in the performed tasks compared to the pre intervention measurements of the NS-LBP patients. For the NS-LBP patients, significant greater angular velocity in frontal plane and significant lower jerk in the sagittal plane were demonstrated post intervention. DN alleviated pain tolerance significantly at the L5 level. Regarding the effectiveness of the DN upon spine kinematics, their derivatives were more sensitive. INTERPRETATION It appeared that the pathological type of torso movement was acutely affected by DN. NS-LBP patients showcased smoother movement immediately after the intervention and better control as imprinted in the higher derivative of motion although range of motion did not improve. This quantitative variable may not be subjected to acute effects of DN but rather need additional time and training to be improved.
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Affiliation(s)
- Petros Athanasakis
- Biomechanics Laboratory, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Thomas Nikodelis
- Biomechanics Laboratory, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Vassilios Panoutsakopoulos
- Biomechanics Laboratory, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Vasileios Mylonas
- Biomechanics Laboratory, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Theodoros Loizidis
- Department of Physical and Rehabilitation Medicine, Saint Loukes Hospital, 55236, Panorama, Thessaloniki, Greece.
| | - Nikolaos A Koutlianos
- Sports Medicine Laboratory, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Iraklis A Kollias
- Biomechanics Laboratory, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
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Lomond KV, Sansom JK. Effects of non-specific low back pain on static balance in emerging adults. Physiother Theory Pract 2024:1-11. [PMID: 38855981 DOI: 10.1080/09593985.2024.2364805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/31/2024] [Indexed: 06/11/2024]
Abstract
BACKGROUND Postural control impairments in middle-aged or older people with chronic low back pain (CLBP) have been extensively documented. However, little is known about changes in postural control early in the disease process which may underlie compensatory movement strategies. OBJECTIVE Our purpose was to quantify postural sway and sensory weighting in emerging adults with and without CLBP. METHODS Nineteen emerging adults with CLBP (age = 18-26 years (21.11 ± 1.73)) and 19 matched peers without CLBP (18-27 years (22.20 ± 1.97)) participated in a cross-sectional study. Displacement of the center of mass during Quiet stance (QS), Tandem stance (TS), and Unilateral stance (US) on 2 surfaces (stable, unstable) were used to assess postural sway. Sensory Organization Test (SOT) was used to assess sensory weighting. RESULTS Emerging adults with CLBP showed large, significant increases in postural sway during unstable TS (p ≤ .020). Participants with CLBP relied more on somatosensory input, as evidenced by lower equilibrium scores during conditions favoring visual (p = .020) or vestibular (p < .001) input during the SOT. CONCLUSION Emerging adults with CLBP showed postural control impairments related to altered sensory weighting. These findings provide insights into the development of CLBP and its effects on postural control. This information may aid early identification, monitoring, and treatment of individuals in the initial stages of disease development who may have unrecognized postural impairments.
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Affiliation(s)
- Karen V Lomond
- Department of Physical Therapy, Center for Health Sciences, Ithaca, NY, USA
| | - Jennifer K Sansom
- Doctoral Program in Physical Therapy, College of Health Professions, Central Michigan University, Mount Pleasant, MI, USA
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Alshehri MA, van den Hoorn W, Klyne DM, van Dieën JH, Cholewicki J, Hodges PW. Poor lumbar spine coordination in acute low back pain predicts persistent long-term pain and disability. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:2380-2394. [PMID: 38483640 DOI: 10.1007/s00586-024-08205-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/22/2023] [Accepted: 02/23/2024] [Indexed: 06/29/2024]
Abstract
PURPOSE Sitting balance on an unstable surface requires coordinated out-of-phase lumbar spine and provides sufficient challenge to expose quality of spine control. We investigated whether the quality of spine coordination to maintain balance in acute low back pain (LBP) predicts recovery at 6 months. METHODS Participants in an acute LBP episode (n = 94) underwent assessment of sitting balance on an unstable surface. Seat, hip and spine (lower lumbar, lumbar, upper lumbar, thoracic) angular motion and force plate data were recorded. Coordination between the seat and hip/spine segments to maintain balance was quantified in the frequency domain to evaluate coordination (coherence) and relative timing (phase angle: in-phase [segments move together]; out-of-phase [segments move opposite]). Center of pressure (CoP) and upper thorax motion assessed overall balance performance. Hip and spine coordination with the seat were compared between those who did not recover (increased/unchanged pain/disability), partially recovered (reduced pain/disability) or recovered (no pain and disability) at 6 months. RESULTS In both planes, coherence between the seat and lower lumbar spine was lower (and in-phase-unhelpful for balance) at baseline in those who did not recover than those who recovered. Coherence between the seat and hip was higher in partially recovered in both planes, suggesting compensation by the hip. LBP groups had equal overall balance performance (CoP, upper thorax motion), but non-recovery groups used a less optimal strategy that might have consequences for long-term spine health. CONCLUSION These longitudinal data revealed that individuals with compromised contribution of the lumbar spine to the balance during unstable sitting during acute LBP are less likely to recover.
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Affiliation(s)
- Mansour Abdullah Alshehri
- The University of Queensland, Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, QLD, Australia
- Physiotherapy Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Wolbert van den Hoorn
- The University of Queensland, Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, QLD, Australia
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, QLD, Australia
| | - David M Klyne
- The University of Queensland, Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, QLD, Australia
| | - Jaap H van Dieën
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Jacek Cholewicki
- Center for Neuromusculoskeletal Clinical Research, Michigan State University, Lansing, MI, USA
- Department of Osteopathic Manipulative Medicine, Michigan State University, East Lansing, MI, USA
| | - Paul W Hodges
- The University of Queensland, Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, QLD, Australia.
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Sung PS, Lee D. A study on the effects of visual condition on postural stability in adults with and without chronic low back pain. J Biomech 2024; 171:112193. [PMID: 38885601 DOI: 10.1016/j.jbiomech.2024.112193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 04/12/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024]
Abstract
This study was conducted to compare postural stability during repeated unilateral standing tasks between adults with and without chronic low back pain (LBP) while considering visual input. The study involved 26 participants with LBP and 39 control participants. Each participant performed three trials of standing tasks on the dominant limb using a stable platform. The Falls Efficacy Scale was utilized to assess fall-related self-efficacy and fear of falling due to potential physical frailty. The center of pressure (COP) sway excursion was analyzed at 10 mm and 20 mm thresholds for the time-in-boundary (TIB). The results indicated a significant fear of falling difference in the LBP group compared to the control group (t = 3.27, p = 0.001). The LBP group demonstrated a significant interaction between visual condition and TIB (F = 8.45, p = 0.01), particularly in the LBP group, which demonstrated a notable decrease in TIB at 10 mm (54.02 % compared to the control group's 70.40 %) and 20 mm (70.93 % compared to the control group's 85.92 %) thresholds during the second trial and at 10 mm (59.73 % compared to the control group's 73.84 %) during the third trial in the eyes open condition. Overall, visual condition demonstrated significant interactions on thresholds (F = 15.80, p = 0.001, η2p = 0.21) as well as trials × thresholds (F = 4.21, p = 0.04, η2p = 0.07). These findings indicate a potential adaptation in postural control among the LBP group with visual feedback. Further research is warranted to explore group differences when considering visual conditions and sway excursion thresholds.
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Affiliation(s)
- Paul S Sung
- Doctor of Physical Therapy Program, Indiana Wesleyan University, 4201 South Washington Street, Marion, IN, USA.
| | - Dongchul Lee
- Nevro Inc., 1800 Bridge Parkway, Redwood City, CA, USA.
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Sung PS, Lee D. Postural control and trunk stability on sway parameters in adults with and without chronic low back pain. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:1455-1464. [PMID: 38374241 DOI: 10.1007/s00586-024-08147-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/16/2023] [Accepted: 01/18/2024] [Indexed: 02/21/2024]
Abstract
BACKGROUND Postural sway changes often reflect functional impairments in adults with chronic low back pain (LBP). However, there is a gap in understanding how these individuals adapt their postural strategies to maintain stability. PURPOSE This study investigated postural sway distance and velocity, utilizing the center of pressure (COP) and center of gravity (COG), between adults with and without LBP during repeated unilateral standing trials. METHODS Twenty-six subjects with LBP and 39 control subjects participated in the study. Postural sway ranges, COP/COG sways, and sway velocities (computed by dividing path length by time in anteroposterior (AP) and mediolateral (ML) directions over 10 s) were analyzed across three unilateral standing trials. RESULTS A significant group interaction in sway range difference was observed following repeated trials (F = 5.90, p = 0.02). For COG sway range, significant group interactions were demonstrated in both directions (F = 4.28, p = 0.04) and repeated trials (F = 5.79, p = 0.02). The LBP group demonstrated reduced ML sway velocities in the first (5.21 ± 2.43 for the control group, 4.16 ± 2.33 for the LBP group; t = 1.72, p = 0.04) and second (4.87 ± 2.62 for the control group, 3.79 ± 2.22 for the LBP group; t = 1.73, p = 0.04) trials. CONCLUSION The LBP group demonstrated decreased ML sway velocities to enhance trunk stability in the initial two trials. The COG results emphasized the potential use of trunk strategies in augmenting postural stability and optimizing neuromuscular control during unilateral standing.
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Affiliation(s)
- Paul S Sung
- Department of Physical Therapy, Indiana Wesleyan University, 4201 South Washington Street, Marion, IN, 46953, USA.
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Hao Z, Cheng X, Jiang H, Yang J, Li Y, Ambrose Lo WL, Yu Q, Wang C. The associations between lumbar proprioception and postural control during and after calf vibration in people with and without chronic low back pain. Front Bioeng Biotechnol 2024; 12:1329437. [PMID: 38572361 PMCID: PMC10987701 DOI: 10.3389/fbioe.2024.1329437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 01/19/2024] [Indexed: 04/05/2024] Open
Abstract
The relationships of lumbar proprioception with postural control have not been clarified in people with chronic low back pain. This study aimed to compare the associations between lumbar proprioception and postural control in response to calf vibration in individuals with and without chronic low back pain. In this study, we recruited twenty patients with chronic low back pain (CLBP group) and twenty healthy control subjects (HC group) aged between 18 and 50 years. This study was a cross-sectional study and completed from May 2022 to October 2022. The passive joint repositioning sense (PJRS) test for two positions (15° and 35°) were used to assess lumbar proprioception and expressed as the mean of reposition error (RE). Postural control was tested by adding and removing calf vibration while standing on a stable force plate with eyes closed. The sway velocity in the anterior-posterior (AP) direction of center of pressure (COP) data with a window of 15s epoch at baseline, during and after calf vibration was used to evaluate postural control. Mann-Whitney U-tests were used to compare the difference of lumbar proprioception between two groups, and the independent t-tests were used to compare the difference of postural control at baseline and during vibration, and a mixed design ANOVA was used to compare the difference of postural control during post-perturbation. In addition, to explore the association between postural control and lumbar proprioception and pain intensity, Spearman's correlations were used for each group. The major results are: (1) significantly higher PJRS on RE of 15° (CLBP: 95% CI [2.03, 3.70]; HC: 95% CI [1.03, 1.93]) and PJRS on RE of 35° (CLBP: 95% CI [2.59, 4.88]; HC: 95% CI [1.07, 3.00]) were found in the CLBP group; (2) AP velocity was not different between the CLBP group and the HC group at baseline and during calf vibration. However, AP velocity was significantly larger in the CLBP group compared with the HC group at epoch 2-14 after calf vibration, and AP velocity for the CLBP group took a longer time (23 epochs) to return to the baseline after calf vibration compared with the HC group (9 epochs); (3) lumbar proprioception represented by PJRS on RE of 15°correlated negatively with AP velocity during and after vibration for the HC group. Within the CLBP group, no significant relationships between PJRS on RE for two positions (15° and 35°) and AP velocity in any postural phases were found. In conclusion, the CLBP group has poorer lumbar proprioception, slower proprioceptive reweighting and impaired postural control after calf vibration compared to the HC group. Lumbar proprioception offers different information on the control strategy of standing control for individuals with and without CLBP in the situations with proprioceptive disturbance. These results highlight the significance of assessing lumbar proprioception and postural control in CLBP patients.
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Affiliation(s)
- Zengming Hao
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xue Cheng
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haimei Jiang
- Department of Rehabilitation Medicine, The 10th Affiliated Hospital of Southern Medical University (Dongguan People’s Hospital), Dongguan, China
| | - Jiajia Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wai Leung Ambrose Lo
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Engineering and Technology Research Center for Rehabilitation Medicine and Translation, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiuhua Yu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuhuai Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Li YC, Bruijn SM, Lemaire KK, Brumagne S, van Dieën JH. Vertebral level specific modulation of paraspinal muscle activity based on vestibular signals during walking. J Physiol 2024; 602:507-525. [PMID: 38252405 DOI: 10.1113/jp285831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024] Open
Abstract
Evoking muscle responses by electrical vestibular stimulation (EVS) may help to understand the contribution of the vestibular system to postural control. Although paraspinal muscles play a role in postural stability, the vestibulo-muscular coupling of these muscles during walking has rarely been studied. This study aimed to investigate how vestibular signals affect paraspinal muscle activity at different vertebral levels during walking with preferred and narrow step width. Sixteen healthy participants were recruited. Participants walked on a treadmill for 8 min at 78 steps/min and 2.8 km/h, at two different step width, either with or without EVS. Bipolar electromyography was recorded bilaterally from the paraspinal muscles at eight vertebral levels from cervical to lumbar. Coherence, gain, and delay of EVS and EMG responses were determined. Significant EVS-EMG coupling (P < 0.01) was found at ipsilateral and/or contralateral heel strikes. This coupling was mirrored between left and right relative to the midline of the trunk and between the higher and lower vertebral levels, i.e. a peak occurred at ipsilateral heel strike at lower levels, whereas it occurred at contralateral heel strike at higher levels. EVS-EMG coupling only partially coincided with peak muscle activity. EVS-EMG coherence slightly, but not significantly, increased when walking with narrow steps. No significant differences were found in gain and phase between the vertebral levels or step width conditions. In summary, vertebral level specific modulation of paraspinal muscle activity based on vestibular signals might allow a fast, synchronized, and spatially co-ordinated response along the trunk during walking. KEY POINTS: Mediolateral stabilization of gait requires an estimate of the state of the body, which is affected by vestibular afference. During gait, the heavy trunk segment is controlled by phasic paraspinal muscle activity and in rodents the medial and lateral vestibulospinal tracts activate these muscles. To gain insight in vestibulospinal connections in humans and their role in gait, we recorded paraspinal surface EMG of cervical to lumbar paraspinal muscles, and characterized coherence, gain and delay between EMG and electrical vestibular stimulation, during slow walking. Vestibular stimulation caused phasic, vertebral level specific modulation of paraspinal muscle activity at delays of around 40 ms, which was mirrored between left, lower and right, upper vertebral levels. Our results indicate that vestibular afference causes fast, synchronized, and spatially co-ordinated responses of the paraspinal muscles along the trunk, that simultaneously contribute to stabilizing the centre of mass trajectory and to keeping the head upright.
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Affiliation(s)
- Yiyuan C Li
- Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Rehabilitation Sciences, Leuven, KU, Belgium
| | - Sjoerd M Bruijn
- Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Koen K Lemaire
- Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Simon Brumagne
- Department of Rehabilitation Sciences, Leuven, KU, Belgium
| | - Jaap H van Dieën
- Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Alshehri MA, Alzahrani H, van den Hoorn W, Klyne DM, Vette AH, Hendershot BD, Roberts BWR, Larivière C, Barbado D, Vera-Garcia FJ, van Dieen JH, Cholewicki J, Nussbaum MA, Madigan ML, Reeves NP, Silfies SP, Brown SHM, Hodges PW. Trunk postural control during unstable sitting among individuals with and without low back pain: A systematic review with an individual participant data meta-analysis. PLoS One 2024; 19:e0296968. [PMID: 38265999 PMCID: PMC10807788 DOI: 10.1371/journal.pone.0296968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/26/2023] [Indexed: 01/26/2024] Open
Abstract
INTRODUCTION Sitting on an unstable surface is a common paradigm to investigate trunk postural control among individuals with low back pain (LBP), by minimizing the influence lower extremities on balance control. Outcomes of many small studies are inconsistent (e.g., some find differences between groups while others do not), potentially due to confounding factors such as age, sex, body mass index [BMI], or clinical presentations. We conducted a systematic review with an individual participant data (IPD) meta-analysis to investigate whether trunk postural control differs between those with and without LBP, and whether the difference between groups is impacted by vision and potential confounding factors. METHODS We completed this review according to PRISMA-IPD guidelines. The literature was screened (up to 7th September 2023) from five electronic databases: MEDLINE, CINAHL, Embase, Scopus, and Web of Science Core Collection. Outcome measures were extracted that describe unstable seat movements, specifically centre of pressure or seat angle. Our main analyses included: 1) a two-stage IPD meta-analysis to assess the difference between groups and their interaction with age, sex, BMI, and vision on trunk postural control; 2) and a two-stage IPD meta-regression to determine the effects of LBP clinical features (pain intensity, disability, pain catastrophizing, and fear-avoidance beliefs) on trunk postural control. RESULTS Forty studies (1,821 participants) were included for the descriptive analysis and 24 studies (1,050 participants) were included for the IPD analysis. IPD meta-analyses revealed three main findings: (a) trunk postural control was worse (higher root mean square displacement [RMSdispl], range, and long-term diffusion; lower mean power frequency) among individuals with than without LBP; (b) trunk postural control deteriorated more (higher RMSdispl, short- and long-term diffusion) among individuals with than without LBP when vision was removed; and (c) older age and higher BMI had greater adverse impacts on trunk postural control (higher short-term diffusion; longer time and distance coordinates of the critical point) among individuals with than without LBP. IPD meta-regressions indicated no associations between the limited LBP clinical features that could be considered and trunk postural control. CONCLUSION Trunk postural control appears to be inferior among individuals with LBP, which was indicated by increased seat movements and some evidence of trunk stiffening. These findings are likely explained by delayed or less accurate corrective responses. SYSTEMATIC REVIEW REGISTRATION This review has been registered in PROSPERO (registration number: CRD42021124658).
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Affiliation(s)
- Mansour Abdullah Alshehri
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
- Physiotherapy Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Hosam Alzahrani
- Department of Physical Therapy, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Wolbert van den Hoorn
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - David M. Klyne
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Albert H. Vette
- Department of Mechanical Engineering, Donadeo Innovation Centre for Engineering, University of Alberta, Edmonton, Canada
- Glenrose Rehabilitation Hospital, Alberta Health Services, Edmonton, Canada
| | - Brad D. Hendershot
- Extremity Trauma and Amputation Center of Excellence, Defense Health Agency, Falls Church, Virginia, United States of America
| | - Brad W. R. Roberts
- Department of Mechanical Engineering, Donadeo Innovation Centre for Engineering, University of Alberta, Edmonton, Canada
| | - Christian Larivière
- Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), Montreal, Quebec, Canada
- Center for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Montreal Rehabilitation Institute, Montreal, Quebec, Canada
| | - David Barbado
- Sport Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
- Institute for Health and Biomedical Research (ISABIAL Foundation), Miguel Hernández University of Elche, Alicante, Spain
| | - Francisco J. Vera-Garcia
- Sport Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Alicante, Spain
- Institute for Health and Biomedical Research (ISABIAL Foundation), Miguel Hernández University of Elche, Alicante, Spain
| | - Jaap H. van Dieen
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, Netherlands
| | - Jacek Cholewicki
- Center for Neuromusculoskeletal Clinical Research, Michigan State University, Lansing, Michigan, United States of America
- Department of Osteopathic Manipulative Medicine, Michigan State University, East Lansing, Michigan, United States of America
| | - Maury A. Nussbaum
- Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, Virginia, United States of America
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Michael L. Madigan
- Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, Virginia, United States of America
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, Virginia, United States of America
| | | | - Sheri P. Silfies
- Department of Exercise Science, University of South Carolina, Columbia, South Carolina, United States of America
| | - Stephen H. M. Brown
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Paul W. Hodges
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
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Van Wesemael S, Bogaerts K, De Baets L, Goossens N, Vlemincx E, Amerijckx C, Sohail S, Matheve T, Janssens L. The association between pain-related psychological variables and postural control in low back pain: A systematic review and meta-analysis. Gait Posture 2024; 107:253-268. [PMID: 37925241 DOI: 10.1016/j.gaitpost.2023.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/13/2023] [Accepted: 10/17/2023] [Indexed: 11/06/2023]
Abstract
BACKGROUND Alterations in postural control have been found in individuals with low back pain (LBP), particularly during challenging postural tasks. Moreover, higher levels of negative pain-related psychological variables are associated with increased trunk muscle activity, reduced spinal movement, and worse maximal physical performance in individuals with LBP. RESEARCH QUESTION Are pain-related psychological variables associated with postural control during static bipedal standing tasks in individuals with LBP? METHODS A systematic review and meta-analysis were conducted. Pubmed, Web of Science, and PsycINFO were searched until March 2023. Studies were included if they evaluated postural control during static bipedal standing in individuals with LBP by measuring center of pressure (CoP) variables, and reported at least one pain-related psychological variable. Correlation coefficients between pain-related psychological variables and CoP variables were extracted. Study quality was assessed with the "Quality In Prognosis Studies" tool (QUIPS). Random-effect models were used to calculate pooled correlation coefficients for different postural tasks. Sub-analyses were performed for positional or dynamic CoP variables. Certainty of evidence was assessed with an adjusted "Grading of Recommendations, Assessment, Development, and Evaluations" tool (GRADE). The protocol was registered on PROSPERO (CRD42021241739). RESULTS Sixteen studies (n = 723 participants) were included. Pain-related fear (16 studies) and pain catastrophizing (three studies) were the only reported pain-related psychological variables. Both pain-related fear (-0.04 < pooled r < 0.14) and pain catastrophizing (0.28 < pooled r < 0.29) were weakly associated with CoP variables during different postural tasks. For all associations, the certainty of evidence was very low. SIGNIFICANCE Pain-related fear and pain catastrophizing are only weakly associated with postural control during static bipedal standing in individuals with LBP, regardless of postural task difficulty. Certainty of evidence is very low thus it is conceivable that future studies accounting for current study limitations might reveal different findings.
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Affiliation(s)
- Sofie Van Wesemael
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium.
| | - Katleen Bogaerts
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium; KU Leuven, Health Psychology, Faculty of Psychology and Educational Sciences, Tiensestraat 102, 3000 Leuven, Belgium
| | - Liesbet De Baets
- Vrije Universiteit Brussel, Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Pleinlaan 2, 1050 Brussels, Belgium
| | - Nina Goossens
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium
| | - Elke Vlemincx
- KU Leuven, Health Psychology, Faculty of Psychology and Educational Sciences, Tiensestraat 102, 3000 Leuven, Belgium; Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam Movement Sciences Research Institute, Department of Health Sciences, De Boelelaan 1105, 1081 HV Amsterdam, the Netherlands
| | - Charlotte Amerijckx
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium
| | - Suniya Sohail
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium; Foundation University Islamabad, Department of Rehabilitation Sciences, Defence Avenue, Phase-I, DHA, 44000 Islamabad, Pakistan
| | - Thomas Matheve
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium; Ghent University, Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, C. Heymanslaan 10, 9000 Ghent, Belgium
| | - Lotte Janssens
- UHasselt, REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Agoralaan Gebouw A, 3590 Diepenbeek, Belgium
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11
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van Dieën JH, Kistemaker DA. Increased velocity feedback gains in the presence of sensory noise can explain paradoxical changes in trunk motor control related to back pain. J Biomech 2024; 162:111876. [PMID: 37989619 DOI: 10.1016/j.jbiomech.2023.111876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023]
Abstract
Literature reports paradoxical findings regarding effects of low-back pain (LBP) on trunk motor control. Compared to healthy individuals, patients with LBP, especially those with high pain-related anxiety, showed stronger trunk extensor reflexes and more resistance against perturbations. On the other hand, LBP patients and especially those with high pain-related anxiety showed decreased precision in unperturbed trunk movement and posture. These paradoxical effects might be explained by arousal potentially increasing average and variance of muscle spindle firing rates. Increased average firing rates could increase resistance against perturbations, but increased variance could decrease precision. We performed a simulation study to test this hypothesis. We modeled the trunk as a 2D inverted pendulum, stabilized by two antagonistic Hill-type muscles, based on their open-loop muscle activation dependent intrinsic stiffness and damping and through 25 ms-delayed, noisy contractile element length and velocity feedback. Reference feedback gains and sensory noise levels were tuned based on previously reported experimental data. We assessed the effect of increasing feedback gains on precision of trunk orientation at different perturbation magnitudes and assessed sensitivity of the effects to open-loop muscle stimulation and noise levels. At low perturbation magnitudes, increasing reflex gains consistently caused an increase in the variance of trunk orientation. At larger perturbation magnitudes, increasing reflex gains consistently caused a decrease in the variance of trunk orientation. Our results support the notion that LBP and related anxiety may increase reflex gains, resulting in an increase in the average and variance of spindle afference, which in turn increase resistance against perturbations and decrease movement precision.
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Affiliation(s)
- Jaap H van Dieën
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| | - Dinant A Kistemaker
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
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12
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Seth M, Horne JR, Pohlig RT, Sions JM. Pain, Balance-Confidence, Functional Mobility, and Reach Are Associated With Risk of Recurrent Falls Among Adults With Lower-Limb Amputation. Arch Rehabil Res Clin Transl 2023; 5:100309. [PMID: 38163037 PMCID: PMC10757173 DOI: 10.1016/j.arrct.2023.100309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024] Open
Abstract
Objective The study evaluated whether pain intensity and extent, balance-confidence, functional mobility, and balance (eg, functional reach) are potential risk factors for recurrent falls among adults with a lower-limb amputation. Design Cross-sectional study. Setting Research laboratory. Participants Eighty-three adults with unilateral lower-limb amputation that occurred >1 year prior (26 transfemoral- and 57 transtibial-level amputation; 44.6% women; 51.8% traumatic cause of amputation; N=83). Intervention Not applicable. Main Outcome Measures Participants reported on the number of falls in the past year, as well as pain intensity in the low back, residual, and sound limbs. Balance-confidence (per the Activities-Specific Balance-Confidence Scale [ABC]), functional mobility (per the Prosthetic Limb Users Survey of Mobility ([PLUS-M]), and balance (per the Functional Reach and modified Four Square Step Tests) were obtained. Results After considering non-modifiable covariates, greater extent of pain, less balance-confidence, worse self-reported mobility, and reduced prosthetic-side reach were factors associated with recurrent fall risk. Adults reporting pain in the low back and both lower-limbs had 6.5 times the odds of reporting recurrent falls as compared with peers without pain. A 1-point increase in ABC score or PLUS-M T score, or 1-cm increase in prosthetic-side reaching distance, was associated with a 7.3%, 9.4%, and 7.1% decrease in odds of reporting recurrent falls in the past year, respectively. Conclusions Of the 83 adults, 36% reported recurrent falls in the past year. Presence of pain in the low back and both lower-limbs, less balance-confidence, worse PLUS-M score, and less prosthetic-side reaching distance were identified as modifiable factors associated with an increased odd of recurrent falls.
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Affiliation(s)
- Mayank Seth
- Department of Physical Therapy, Delaware Limb Loss Studies, University of Delaware, Newark, DE
- Children's Specialized Hospital, Research Department, Union, NJ
| | | | - Ryan Todd Pohlig
- Biostatistics Core, University of Delaware, Newark, DE
- Epidemiology Program, University of Delaware, Newark, DE
| | - Jaclyn Megan Sions
- Department of Physical Therapy, Delaware Limb Loss Studies, University of Delaware, Newark, DE
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13
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Masroor S, Tanwar T, Aldabbas M, Iram I, Veqar Z. Effect of Adding Diaphragmatic Breathing Exercises to Core Stabilization Exercises on Pain, Muscle Activity, Disability, and Sleep Quality in Patients With Chronic Low Back Pain: A Randomized Control Trial. J Chiropr Med 2023; 22:275-283. [PMID: 38205226 PMCID: PMC10774616 DOI: 10.1016/j.jcm.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/12/2023] [Accepted: 07/22/2023] [Indexed: 01/12/2024] Open
Abstract
Objective The purpose of this study was to test the effect of adding diaphragmatic breathing exercises (DBEs) to core stabilization exercises (CSEs) for patients with chronic low back pain (CLPB). Methods Twenty-two patients with CLPB were randomly allocated to the experimental (DBE + CSE) or control group (CSE only). They were given 12 treatment sessions 3 times a week for 4 weeks. Patients were evaluated before and after the 12 sessions. Surface electromyography of transverse abdominis, Oswestry Disability Index, Fear Avoidance Belief Questionnaire, Pittsburgh Sleep Quality Index, Numeric Pain Rating Scale, and chest expansion were used as outcome measures for pain, muscle activity, disability, and sleep quality. Results The outcome measure scores showed statistical significance of (P = .01) in time effect on muscle activity, sleep quality, disability score, pain score, fear-avoidance belief of patients and chest expansion; and group effect on Fear Avoidance Belief Questionnaire and physical activity parameter (P = .05). An interaction effect (time x group) on muscle activity for right transverse abdominus during tuck in (P = .01) and chest expansion (P = .01) was also found; however, no significant difference was found related to other parameters. Conclusion The combination of DBE and CSE interventions compared to CSE alone showed improvement in the measured parameters for patients with CLBP. Incorporating DBE with CSE also improved muscle activation and chest expansion.
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Affiliation(s)
- Sana Masroor
- Centre of Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, India
| | - Tarushi Tanwar
- Centre of Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mosab Aldabbas
- Centre of Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, India
| | - Iram Iram
- Centre of Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, India
| | - Zubia Veqar
- Centre of Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, India
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14
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Madsen AL, Gyntelberg F, Marott JL, Schnohr P, Astrup J. Cohort study of postural sway and low back pain: the Copenhagen City Heart Study. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2023; 32:4390-4396. [PMID: 37740785 DOI: 10.1007/s00586-023-07925-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 08/07/2023] [Accepted: 08/28/2023] [Indexed: 09/25/2023]
Abstract
PURPOSE Low back pain is a significant health problem with a high prevalence. Studies of smaller cohorts of low back pain patients have indicated increased body sway. The present paper tests the hypothesis of an association between low back pain and postural sway in a large randomly selected population. METHODS The current study used the fifth examination (2011-2015) of The Copenhagen City Heart Study where 4543 participated. The participants answered a self-administered questionnaire regarding pain, physical activity, smoking, alcohol consumption, education, and other lifestyle factors. Measurement of postural body sway was performed using the CATSYS system. RESULTS Totally 1134 participants (25%) reported to have low back pain. Subjects with low back pain had higher sway area and sway velocity than subjects without. CONCLUSION When using multivariate statistical analysis, confounding factors such as male gender, higher age, larger body height, low education level, smoking, and low activity level explained the association between low back pain and postural sway.
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Affiliation(s)
- Anja Lykke Madsen
- Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
- Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
| | - Finn Gyntelberg
- The National Research Centre of Working Environment, Copenhagen East, Denmark
| | - Jacob Louis Marott
- Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Peter Schnohr
- Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jens Astrup
- Danish Headache Center, Rigshospitalet Glostrup, Glostrup, Denmark
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15
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Sun P, Li K, Yao X, Wu Z, Yang Y. Association between functional disability with postural balance among patients with chronic low back pain. Front Neurol 2023; 14:1136137. [PMID: 37288068 PMCID: PMC10242065 DOI: 10.3389/fneur.2023.1136137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/09/2023] [Indexed: 06/09/2023] Open
Abstract
Introduction Postural balance is impaired in patients with chronic low back pain (CLBP). In addition, the swaying velocity can be affected by low back pain (LBP) dysfunction. However, the extent to which the dysfunction affects postural balance in CLBP patients remains unclear. Therefore, this study aimed to investigate the effect of LBP-related disability on postural balance among CLBP patients and determine factors associated with postural balance impairments. Methods Participants with CLBP were recruited and instructed to complete the one-leg stance and Y-balance test. Moreover, they were divided into two subgroups (i.e., low and medium to high LBP-related disability groups) to compare the difference in postural balance based on the degree of LBP-related disability measured by the Roland Morris Disability Questionnaire. The relationships between postural balance and negative emotions as well as LBP characteristics were determined using the Spearman correlations. Results A total of 49 participants with low LBP-related disabilities and 33 participants with medium to high LBP-related disabilities participated in the study. Compared to the medium to high LBP-related disability group, patients in the low LBP-related disability group performed better in one-leg stance on the left leg (z = -2.081, p = 0.037). For Y-balance test, patients in the low LBP-related disability group also had greater normalized values of left leg reach in posteromedial (t = 2.108, p = 0.038) direction and composite score (t = 2.261, p = 0.026) and of right leg reach in posteromedial (t = 2.185, p = 0.032), and posterolateral (t = 2.137, p = 0.036) directions as well as composite score (t = 2.258, p = 0.027). Factors associated with postural balance impairments were also revealed, such as anxiety, depression, and fear avoidance belief. Discussion The greater the dysfunction degree, the worse the CLBP patient's postural balance impairment. Negative emotions could also be considered contributing factors for postural balance impairments.
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Affiliation(s)
- Pingge Sun
- Department of Neurological Rehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
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16
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Park J, Nguyen VQ, Ho RLM, Coombes SA. The effect of chronic low back pain on postural control during quiet standing: A meta-analysis. Sci Rep 2023; 13:7928. [PMID: 37193730 DOI: 10.1038/s41598-023-34692-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 05/05/2023] [Indexed: 05/18/2023] Open
Abstract
Low back pain (LBP) has been associated with altered body sway during quiet standing, but the pattern of results is inconsistent. The purpose of this meta-analysis is to examine the effects of vision (eyes open, eyes closed) and changing the support surface (foam surface, firm surface) on postural sway during quiet standing in individuals with chronic LBP (cLBP). Five electronic databases were searched on March 27th, 2022. Of 2,856, 16 studies (n = 663) were included. Across all conditions, we found a positive and medium effect size (g = 0.77 [0.50, 1.04]) that represented greater body sway in individuals with cLBP. Subgroup analyses revealed medium effects during eyes open conditions (firm surface: g = 0.60 [0.33, 0.87]; foam surface: g = 0.68 [0.38, 0.97]), and large effects during eyes closed conditions (firm surface: g = 0.97 [0.60, 1.35]; foam surface: g = 0.89 [0.28, 1.51]). We quantified effects of self-reported pain and found a moderate effect during eyes closed plus firm surface conditions (Q = 3.28; p = 0.070). We conclude that cLBP is associated with increased postural sway, with largest effect sizes evident when vision is removed and when self-reported pain intensity is higher.
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Affiliation(s)
- Jinhan Park
- Laboratory for Rehabilitation Neuroscience, Department of Applied Physiology and Kinesiology, University of Florida, PO Box 118206, Gainesville, FL, 32611, USA
| | - Vinh Q Nguyen
- Laboratory for Rehabilitation Neuroscience, Department of Applied Physiology and Kinesiology, University of Florida, PO Box 118206, Gainesville, FL, 32611, USA
| | - Rachel L M Ho
- Laboratory for Rehabilitation Neuroscience, Department of Applied Physiology and Kinesiology, University of Florida, PO Box 118206, Gainesville, FL, 32611, USA
| | - Stephen A Coombes
- Laboratory for Rehabilitation Neuroscience, Department of Applied Physiology and Kinesiology, University of Florida, PO Box 118206, Gainesville, FL, 32611, USA.
- Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA.
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Azadinia F, Kingma I, Mazaheri M. Effect of external lumbar supports on joint position sense, postural control, and postural adjustment: a systematic review. Disabil Rehabil 2023; 45:753-771. [PMID: 35259058 DOI: 10.1080/09638288.2022.2043464] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PURPOSE To review the effects of external lumbar supports on various aspects of sensorimotor function including joint position sense (JPS), postural control, anticipatory postural adjustments (APAs), and compensatory postural adjustments (CPAs). METHODS A systematic literature search was performed in PubMed, EMBASE, Scopus, Ovid, Cochrane library, and Web of Science. Two reviewers selected studies which assessed the effect of lumbosacral orthosis or kinesio-tape on JPS, postural control or APAs/CPAs in subjects with and without low back pain (LBP). The methodological quality of included studies was assessed using a modified version of Downs and Black's checklist. RESULTS Findings demonstrated moderate effects of lumbosacral orthosis on specific aspects of sensorimotor control including JPS and to a lesser extent standing stability. These domains were not or minimally affected by application of kinesio-tape. Both orthosis and kinesio-tape had negligible effects on APAs and CPAs. CONCLUSIONS The positive effects of lumbar orthosis on JPS or postural control were mostly observed in conditions where sources of proprioceptive feedback are impaired (such as LBP) or absent (standing with eyes closed on an unstable surface). However, evidence does not prove significant positive effects for the application of kinesio-tape to improve sensorimotor control.IMPLICATIONS FOR REHABILITATIONWearing lumbar orthosis leads to an improvement in joint position sense.Postural stability seems to be affected to some extent by utilizing lumbar orthosis.Clinicians can administer orthosis to improve sensorimotor adaptation, especially in conditions with poor proprioception.Kinesio-tape had negligible effects on all domains of sensorimotor control.Improvement of sensorimotor function as a result of application of kinesio-tape is questionable.
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Affiliation(s)
- Fatemeh Azadinia
- School of Rehabilitation Sciences, Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Idsart Kingma
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Masood Mazaheri
- Department of Plastic and Reconstructive Surgery, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, The Netherlands
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18
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Gottlieb U, Hoffman JR, Springer S. Dynamic postural control in individuals with and without chronic ankle instability-do the modified star-excursion balance test and jump-landing stabilization have the same control mechanism? Phys Ther Sport 2023; 60:104-111. [PMID: 36758488 DOI: 10.1016/j.ptsp.2023.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To examine the relationship between two dynamic postural tasks in subjects with and without chronic ankle instability (CAI). DESIGN Cross-sectional study. SETTING Biomechanics lab. PARTICIPANTS Thirty subjects with CAI and 30 healthy controls. MAIN OUTCOME MEASURE Performance of two dynamic postural control tests: the modified Star-Excursion Balance Test (mSEBT) and an assessment of a single limb jump-landing on a force plate that yielded two outcomes: time to stabilization (TTS) and the absolute average force in the mediolateral plane during the first 0.4 s after landing (AAFML). RESULTS In the CAI group, a significant correlation was found between the mSEBT score and the AAFML (ρ = -0.54, p < 0.01), but not between the mSEBT or TTS or between the AAFML and the TTS. However, in the control group, a significant correlation was found between AAFML and the TTS (ρ = 0.43, p < 0.05), but not between the mSEBT and TTS or between the mSEBT and AAFML. CONCLUSION These results suggest that there is no association between the different dynamic balance tasks. The different pattern of association in individuals with CAI may indicate altered central neural control. Clinicians and researchers should therefore not use a single task to assess dynamic postural control.
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Affiliation(s)
- Uri Gottlieb
- Neuromuscular and Human Performance Laboratory, Department of Physiotherapy, Ariel University, Israel.
| | - Jay R Hoffman
- Neuromuscular and Human Performance Laboratory, Department of Physiotherapy, Ariel University, Israel.
| | - Shmuel Springer
- Neuromuscular and Human Performance Laboratory, Department of Physiotherapy, Ariel University, Israel.
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Usman A, Tanwar T, Veqar Z. Exploring the role of respiratory intervention as an effective adjunct tool in the management of chronic low back pain: A scoping systematic review. J Bodyw Mov Ther 2023; 33:60-68. [PMID: 36775527 DOI: 10.1016/j.jbmt.2022.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 05/01/2022] [Accepted: 09/17/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Individuals with chronic low back pain (CLBP) are usually prescribed manual therapy and exercise programs. Respiratory exercise interventions are also recommended by some researchers for CLBP. However, the evidence for the relative effectiveness of these treatments is limited, and the question of which sort of intervention is most suited remains unanswered. OBJECTIVE This systematic review aims to evaluate the effectiveness of respiratory interventions in CLBP. METHODS A systematic search was performed using databases: PubMed, Web of Science, PEDro, Cochrane Library, and Science Direct. The review was registered in PROSPERO (CRD42021233739). RESULTS Seven studies met the inclusion criteria. Out of these, one was of poor, three were of fair, and three were of good qualities. A total of 293 subjects were included in seven studies, the mean age of subjects ranged from 21 to 53 years. The largest effect size was reported for pain (d = 1.5) and maximum inspiratory pressure (d = 1.38). No detrimental effects were reported for any of the intervention programs. CONCLUSIONS Since most of the research has been done on pain and MIP, and both of these parameters have revealed significant changes with large effect size, therefore it can be concluded that respiratory interventions improve pain and MIP in CLBP. Owing to the limited number of studies available, a definitive outcome could not be documented for other parameters. Thus, further research is needed to provide a more robust piece of evidence and understanding.
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Affiliation(s)
- Arshi Usman
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (Central University), New Delhi, 110025, India.
| | - Tarushi Tanwar
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia, New Delhi, 110025, India.
| | - Zubia Veqar
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (Central University), New Delhi, 110025, India.
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Meinke A, Maschio C, Meier ML, Karlen W, Swanenburg J. The association of fear of movement and postural sway in people with low back pain. Front Psychol 2022; 13:1006034. [PMID: 36467232 PMCID: PMC9716132 DOI: 10.3389/fpsyg.2022.1006034] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/28/2022] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Fear of movement is thought to interfere with the recovery from low back pain (LBP). To date, the relationship between fear of movement and postural balance has not been adequately elucidated. Recent findings suggest that more specific fears need to be assessed and put in relation to a specific movement task. We propose that the fear to bend the trunk in a certain direction is distinctly related to the amount of postural sway in different directions. Therefore, our aim was to investigate whether fear of movement in general and fear of bending the trunk in a certain plane is related to postural sway. METHODS Data was collected from participants with LBP during two assessments ~3 weeks apart. Postural sway was measured with a force-platform during quiet standing with the eyes closed. Fear of movement was assessed with an abbreviated version of the Tampa Scale of Kinesiophobia (TSK-11) and custom items referring to fear of bending the trunk in the sagittal and the frontal plane. RESULTS Based on data from 25 participants, fear of bending the trunk in the frontal plane was positively related to displacement in the sagittal and frontal plane and to velocity in the frontal plane (χ 2 = 4.35, p = 0.04; χ 2 = 8.15, p = 0.004; χ 2 = 9.79, p = 0.002). Fear of bending the trunk in the sagittal plane was not associated with any direction specific measure of sway. A positive relation of the TSK-11 with velocity of the frontal plane (χ 2 = 7.14, p = 0.008) was found, but no association with undirected measures of sway. DISCUSSION Fear of bending the trunk in the frontal plane may be especially relevant to postural sway under the investigated stance conditions. It is possible that fear of bending the trunk in the frontal plane could interfere with balance control at the hip, shifting the weight from side to side to control balance. CONCLUSION For the first time the directional relationship of fear of movement and postural sway was studied. Fear of bending the trunk in the frontal plane was positively associated with several measures of postural sway.
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Affiliation(s)
- Anita Meinke
- Mobile Health Systems Lab, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Cinzia Maschio
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Michael L Meier
- Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, Zurich, Switzerland
| | - Walter Karlen
- Mobile Health Systems Lab, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
- Institute of Biomedical Engineering, University of Ulm, Ulm, Germany
| | - Jaap Swanenburg
- Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, Zurich, Switzerland
- Directorate of Research and Education, Physiotherapy Occupational Therapy Research Center, University Hospital Zurich, Zurich, Switzerland
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Ansari S, Sharma S, Kumar S, Sharma S. Effect of stabilization exercises on balance parameters in chronic low back pain: a systematic review. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-021-00864-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Postural sway does not differentiate individuals with chronic low back pain, single and multisite chronic musculoskeletal pain, or pain-free controls: a cross-sectional study of 229 subjects. Spine J 2022; 22:1523-1534. [PMID: 35504568 DOI: 10.1016/j.spinee.2022.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/16/2022] [Accepted: 04/26/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Physical activity in its various forms are the most recommended prevention and treatment strategy for chronic low back pain (CLBP). Standing postural stability is a prerequisite for many types of physical activities. Systematic reviews have investigated the evidence for an association between CLBP and postural stability but results remain inconclusive. PURPOSE Our primary objective was to compare postural stability between pain-free controls and subjects with CLBP with or without leg pain and single and multisite chronic musculoskeletal pain subjects. The secondary objectives were to evaluate the association between postural stability with CLBP intensity and duration, demographics, physical characteristics and validated health and pain-related patient-reported outcome measures (PROMs). STUDY DESIGN/SETTING Cross-sectional study in a private chiropractic clinic setting PATIENT SAMPLE: Subjects included 42 pain-free controls and 187 patients with chronic musculoskeletal pain divided into CLBP with or without leg pain and single and multisite pain groups. OUTCOME MEASURES Pain intensity was measured using the numerical pain rating scale, PROMs Central Sensitization Inventory, Tampa Scale of Kinesiophobia, The Depression Scale, EuroQol-5D, Roland-Morris Disability Questionnaire, and Pain and Sleep Questionnaire Three-Item Index disability. Group differences were measured using area and velocity of sway on the force plate. METHODS Postural stability was assessed using a force plate on four 60-second bipedal quiet stance tests: eyes open on a stable surface, eyes closed on a stable surface, eyes open on an unstable foam surface, eyes closed on an unstable foam surface. Following the clinic visit, subjects completed an online web-based data entry detailing pain history, demographic data, physical characteristics, pain intensity via the numerical pain rating scale, and PROMS. RESULTS Postural sway parameters did not differ between pain-free controls and subjects with CLBP with or without leg pain and single and multisite chronic musculoskeletal pain subjects. Furthermore, severity and duration of CLBP pain in addition to central sensitization, kinesiophobia, depression, quality of life, disability, and effect of pain on sleep only had very weak associations with postural stability. CONCLUSIONS Chronic musculoskeletal pain appears not to influence bipedal postural stability.
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Astrup J, Gyntelberg F. Tension-type headache and low back pain reconsidered. Front Neurol 2022; 13:912348. [PMID: 35968274 PMCID: PMC9372361 DOI: 10.3389/fneur.2022.912348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/06/2022] [Indexed: 11/13/2022] Open
Abstract
The natural history and clinical course of tension-type headache and non-specific low back pain are reconsidered. By closer examination, these two conditions appear to share several specific clinical features. Both are muscular pain conditions along the spine, they have a preponderance in women, they may occur spontaneously or follow a trivial traumatic incident, and they both have a high risk of chronicity. The affected muscles are tender with tender points. EMG indicates diffuse hyperactivity and abnormal activation pattern, and motor control of the affected muscles and adjacent muscle groups is discoordinated. These shared features suggest analogous pathophysiology involving the neuromotor control of affected and adjacent muscle groups in the cervical and lumbar regions, respectively. As recently suggested for the whiplash disease, we suggest the term spinal dyssynergia for this specific pattern of pathology. This suggestion provides a new perspective for the understanding of these diseases by placing their cause within the central nervous system and not in the spine or spinal musculature. This perspective warrants further clinical, neurophysiological, and neuropharmacological studies of this ‘family’ of common yet poorly understood clinical muscular pain conditions along the spine.
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Xiao F, Maas H, van Dieën JH, Pranata A, Adams R, Han J. Chronic non-specific low back pain and ankle proprioceptive acuity in community-dwelling older adults. Neurosci Lett 2022; 786:136806. [PMID: 35850319 DOI: 10.1016/j.neulet.2022.136806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/20/2022] [Accepted: 07/13/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND For people above 65 years old, low-back pain (LBP) is associated with balance problems and falls. Down-weighting of proprioception due to ageing and LBP may cause such balance problems. While lumbar proprioceptive deficits have been shown in LBP and indications for more generalized deficits have been found, ankle proprioception, which is crucial for balance control, has not been studied in people with LBP. RESEARCH QUESTION Is there any difference in ankle proprioceptive acuity between community-dwelling older adults with and without LBP? We hypothesized that ankle proprioception was impaired in community-dwelling older adults with LBP compared to those without LBP. METHODS Thirty participants over 65 years old volunteered. Fifteen had LBP (M/F = 2/13, age = 72.0 (4.6) years), fifteen were healthy controls without back pain (control group) (M/F = 2/13, age = 72.1 (4.8) years). Ankle proprioception was measured in normal weight-bearing conditions, using the Active Movement Extent Discrimination Apparatus (AMEDA). Accuracy on the ankle proprioceptive test was expressed as absolute error (AE), constant error (CE) and variable error (VE). RESULTS AE was significantly larger (P = 0.029, 95 % CI = [0.00, 0.90]) in the LBP group, CE was also significantly larger (P = 0.046, 95 % CI = [-0.91, -0.01]), indicating an underestimation of ankle inversion in participants with LBP compared to controls. VE was not different between the two groups (P = 0.520, 95 % CI = [-0.20, 0.59]). No significant correlation was found between pain intensity and AE, CE or VE (P > 0.05). CONCLUSION Ankle proprioception decreased in older people with LBP compared to healthy peers, suggesting impaired central proprioceptive processing. Older people with LBP underestimate the extent of ankle inversion, which may increase fall risk. Thus, evaluation and training of ankle proprioception may be useful in older people with LBP.
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Affiliation(s)
- Fangxin Xiao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China; Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, the Netherlands
| | - Huub Maas
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, the Netherlands
| | - Jaap H van Dieën
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, the Netherlands
| | - Adrian Pranata
- School of Kinesiology, Shanghai University of Sport, Shanghai, China; Department of Nursing and Allied Health, Swinburne University of Technology, Melbourne, Australia
| | - Roger Adams
- Research Institute for Sport and Exercise, University of Canberra, Canberra, Australia
| | - Jia Han
- School of Kinesiology, Shanghai University of Sport, Shanghai, China; College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China; Research Institute for Sport and Exercise, University of Canberra, Canberra, Australia; Department of Nursing and Allied Health, Swinburne University of Technology, Melbourne, Australia.
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25
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Meinke A, Peters R, Knols RH, Swanenburg J, Karlen W. Feedback on Trunk Movements From an Electronic Game to Improve Postural Balance in People With Nonspecific Low Back Pain: Pilot Randomized Controlled Trial. JMIR Serious Games 2022; 10:e31685. [PMID: 35687390 PMCID: PMC9233263 DOI: 10.2196/31685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 01/17/2022] [Accepted: 04/14/2022] [Indexed: 12/26/2022] Open
Abstract
Background Postural balance is compromised in people with low back pain, possibly by changes in motor control of the trunk. Augmenting exercising interventions with sensor-based feedback on trunk posture and movements might improve postural balance in people with low back pain. Objective We hypothesized that exercising with feedback on trunk movements reduces sway in anterior-posterior direction during quiet standing in people with low back pain. Secondary outcomes were lumbar spine and hip movement assessed during box lift and waiter bow tasks, as well as participant-reported outcomes. Adherence to the exercising intervention was also examined. Methods A randomized controlled trial was conducted with the intervention group receiving unsupervised home exercises with visual feedback using the Valedo Home, an exergame based on 2 inertial measurement units. The control group received no intervention. Outcomes were recorded by blinded staff during 4 visits (T1-T4) at University Hospital Zurich. The intervention group performed 9 sessions of 20 minutes in the 3 weeks between T2 and T3 and were instructed to exercise at their own convenience between T3 and T4. Postural balance was assessed on a force platform. Lumbar spine and hip angles were obtained from 3 inertial measurement units. The assessments included pain intensity, disability, quality of life, and fear of movement questionnaires. Results A total of 32 participants with nonspecific low back pain completed the first assessment T1, and 27 (84%) participants were randomized at T2 (n=14, 52% control and n=13, 48% intervention). Intention-to-treat analysis revealed no significant difference in change in anterior-posterior sway direction during the intervention period with a specified schedule (T2-T3) between the groups (W=99; P=.36; r=0.07). None of the outcomes showed significant change in accordance with our hypotheses. The intervention group completed a median of 61% (55/90; range 2%-99%) of the exercises in the predefined training program. Adherence was higher in the first intervention period with a specified schedule. Conclusions The intervention had no significant effect on postural balance or other outcomes, but the wide range of adherence and a limited sample size challenged the robustness of these conclusions. Future work should increase focus on improving adherence to digital interventions. Trial Registration ClinicalTrials.gov NCT04364243; https://clinicaltrials.gov/ct2/show/NCT04364243 International Registered Report Identifier (IRRID) RR2-10.2196/26982
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Affiliation(s)
- Anita Meinke
- Mobile Health Systems Lab, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Rick Peters
- Department of Physiotherapy Occupational Therapy, University Hospital Zurich, Zurich, Switzerland
| | - Ruud H Knols
- Department of Physiotherapy Occupational Therapy, University Hospital Zurich, Zurich, Switzerland.,Directorate of Research and Education, Physiotherapy Occupational Therapy Research Center, University Hospital Zurich, Zurich, Switzerland.,Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Jaap Swanenburg
- Directorate of Research and Education, Physiotherapy Occupational Therapy Research Center, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, Zurich, Switzerland
| | - Walter Karlen
- Mobile Health Systems Lab, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland.,Institute of Biomedical Engineering, University of Ulm, Ulm, Germany
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Alshehri MA, van den Hoorn W, Klyne DM, Hodges PW. Postural control of the trunk in individuals with and without low back pain during unstable sitting: A protocol for a systematic review with an individual participant data meta-analysis. PLoS One 2022; 17:e0268381. [PMID: 35551559 PMCID: PMC9098032 DOI: 10.1371/journal.pone.0268381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 04/28/2022] [Indexed: 12/03/2022] Open
Abstract
Introduction Postural control of the trunk is critical for performance of everyday activities and the health of spinal tissues. Although some studies report that individuals with low back pain (LBP) have poorer/compromised postural control than pain-free individuals when sitting on an unstable surface, others do not. Analyses commonly lack the statistical power to evaluate the relevance of features that could impact the performance of postural control, such as sex, age, anthropometrics, pain intensity or disability. This paper outlines a protocol for a systematic review with an individual participant data (IPD) meta-analysis that aims to synthesise the evidence and evaluate differences of postural control measures between individuals with and without LBP during unstable sitting. Methods and analysis A systematic review with IPD meta-analysis will be conducted according to PRISMA-IPD guidelines. To identify relevant studies, electronic databases and the reference lists of included articles will be screened. Unstable seat movements are derived from centre of pressure (CoP) data using a force plate or angle of the seat using motion systems/sensors. The comprehensiveness of reporting and methodological quality of included studies will be assessed. Analysis will involve a descriptive analysis to synthesise the findings of all included studies and a quantitative synthesis using two-stage IPD meta-analysis of studies that include both individuals with and without LBP for which IPD set can be obtained from authors. Analyses will include consideration of confounding variables. Ethics Exemption from ethical approval was obtained for this review (University of Queensland, ID: 2019003026). Systematic review registration PROSPERO ID: CRD42021124658.
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Affiliation(s)
- Mansour Abdullah Alshehri
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
- Physiotherapy Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Wolbert van den Hoorn
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - David M. Klyne
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Paul W. Hodges
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury & Health, School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
- * E-mail:
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Mikkonen J, Leinonen V, Luomajoki H, Kaski D, Kupari S, Tarvainen M, Selander T, Airaksinen O. Cross-Cultural Adaptation, Reliability, and Psychophysical Validation of the Pain and Sleep Questionnaire Three-Item Index in Finnish. J Clin Med 2021; 10:jcm10214887. [PMID: 34768407 PMCID: PMC8584796 DOI: 10.3390/jcm10214887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/17/2021] [Accepted: 10/20/2021] [Indexed: 12/28/2022] Open
Abstract
Reciprocal relationships between chronic musculoskeletal pain and various sleep disturbances are well established. The Pain and Sleep Questionnaire three-item index (PSQ-3) is a concise, valid, and reliable patient-reported outcome measure (PROM) that directly evaluates how sleep is affected by chronic low back pain (CLBP). Translation and cross-cultural validation of The Pain and Sleep Questionnaire three-item index Finnish version (PSQ-3-FI) were conducted according to established guidelines. The validation sample was 229 subjects, including 42 pain-free controls and 187 subjects with chronic musculoskeletal pain. Our aims were to evaluate internal consistency, test-retest reliability, measurement error, structural validity, convergent validity, and discriminative validity and, furthermore, to study the relationships between dizziness, postural control on a force plate, and objective sleep quality metrics and total PSQ-3-FI score. The PSQ-3-FI demonstrated good internal consistency, excellent test-retest reliability, and small measurement error. Confirmatory factor analysis confirmed acceptable fit indices to a one-factor model. Convergent validity indicated fair to good correlation with pain history and well-established pain-related PROMs. The PSQ-3-FI total score successfully distinguished between the groups with no pain, single-site pain, and multisite pain. A higher prevalence of dizziness, more impaired postural control, and a general trend towards poorer sleep quality were observed among subjects with higher PSQ-3-FI scores. Postural control instability was more evident in eyes-open tests. The Finnish PSQ-3 translation was successfully cross-culturally adapted and validated. The PSQ-3-FI appears to be a valid and reliable PROM for the Finnish-speaking CLBP population. More widespread implementation of PSQ-3 would lead to better understanding of the direct effects of pain on sleep.
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Affiliation(s)
- Jani Mikkonen
- Private Practice, Helsinki, Finland
- Department of Surgery (Incl. Physiatry), Institute of Clinical Medicine, University of Eastern Finland, 70211 Kuopio, Finland;
- Correspondence:
| | - Ville Leinonen
- Institute of Clinical Medicine-Neurosurgery, University of Eastern Finland, 70211 Kuopio, Finland;
- Department of Neurosurgery, Kuopio University Hospital,70211 Kuopio, Finland
| | - Hannu Luomajoki
- ZHAW School of Health Professions, Zurich University of Applied Sciences, CH-8401 Winterthur, Switzerland;
| | - Diego Kaski
- Department of Clinical and Movement Neurosciences, University College London, London WC1E 6BT, UK;
| | - Saana Kupari
- Department of Applied Physics, University of Eastern Finland, 70211 Kuopio, Finland; (S.K.); (M.T.)
| | - Mika Tarvainen
- Department of Applied Physics, University of Eastern Finland, 70211 Kuopio, Finland; (S.K.); (M.T.)
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, 70211 Kuopio, Finland
| | - Tuomas Selander
- Science Service Center, Kuopio University Hospital, 70211 Kuopio, Finland;
| | - Olavi Airaksinen
- Department of Surgery (Incl. Physiatry), Institute of Clinical Medicine, University of Eastern Finland, 70211 Kuopio, Finland;
- Department of Physical and Rehabilitation Medicine, Kuopio University Hospital, 70211 Kuopio, Finland
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Impairment of Proprioception in Young Adult Nonradicular Patients with Lumbar Derangement Syndrome. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5550257. [PMID: 34660792 PMCID: PMC8516538 DOI: 10.1155/2021/5550257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 08/17/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022]
Abstract
Maintaining body balance is a complex function based on the information deriving from the vestibular, visual, and proprioceptive systems. The aim of the study was to evaluate quiet single stance stability in young adults with lumbar derangement syndrome (LDS) and in the control group of the healthy subjects. The second aim of this study was to determine whether pain intensity, degree of disability, and the level of physical activity can influence postural control in patients with LDS. It is important to underline that selecting a homogeneous group of LBP patients using, for example, mechanical diagnosis and therapy method and Quebec Task Force Classification, can result in an increased sensitivity of the study. The study included 126 subjects: 70 patients with LDS (37 women, 33 men) and the control group 56 healthy volunteers (36 women, 20 men). In case of multiple group comparisons for variables with normal distribution, ANOVA post hoc test was used or, as the nonparametric equivalent, Kruskal-Wallis test. In all these calculations, the statistical significance level was set to p < 0.05. The stability index eyes open for the study group was 88.34 and for the control group 89.86. There was no significant difference in the level of postural control between the study and control groups (p > 0.05). The level of stability index eyes closed (SI EC) for the study group was 71.44 and for the control group 77.1. SI EC results showed significant differences in proprioceptive control during single leg stance between the study and control groups (p < 0.05). The level of pain intensity, the degree of disability, and physical activity level did not influence postural control in the study group with LDS. In summary, patients with LDS showed significantly worse proprioceptive control.
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Meinke A, Peters R, Knols R, Karlen W, Swanenburg J. Exergaming Using Postural Feedback From Wearable Sensors and Exercise Therapy to Improve Postural Balance in People With Nonspecific Low Back Pain: Protocol for a Factorial Pilot Randomized Controlled Trial. JMIR Res Protoc 2021; 10:e26982. [PMID: 34435954 PMCID: PMC8430828 DOI: 10.2196/26982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/22/2021] [Accepted: 06/15/2021] [Indexed: 02/05/2023] Open
Abstract
Background Physical exercise is a common treatment for people with low back pain (LBP). Wearable sensors that provide feedback on body movements and posture during exercise may enhance postural balance and motor control in people with LBP. Objective This study aims to investigate whether physical exercising with postural feedback (EPF) improves postural balance, motor control, and patient-reported outcomes in people with LBP. Methods The study was an assessor-blinded 2×2 factorial trial. We planned to recruit 80 participants with nonspecific LBP who did not receive treatment for LBP. In addition, we aimed to recruit 40 patients with chronic, nonspecific LBP who were receiving exercise therapy (ET) at the University Hospital Zurich. Both ET patients and participants without treatment were randomized to receive either an additional EPF intervention or no additional intervention. This resulted in four different combinations of interventions: ET+EPF, ET, EPF, and no intervention. The participants underwent outcome assessments at inclusion (T1); 3 weeks later, at randomization (T2); after an intervention period of 3 weeks with a predefined exercise schedule for participants receiving EPF (T3); and after an additional 6 weeks, during which participants assigned to the EPF groups could exercise as much as they wished (T4). Patients receiving ET completed their regularly prescribed therapies during the study period. Balance was assessed during quiet standing on a force platform, and motor control was assessed during a lifting task and a waiter’s bow task. Physical activity was recorded using an activity tracker and the participants’ mobile phones during the study. The predefined EPF schedule consisted of nine sessions of 20 minutes of exercise with a tablet and inertial measurement unit sensors at home. Participants performed a series of trunk and hip movements and received feedback on their movements in a gamified environment displayed on the tablet. Results The first participant was recruited in May 2019. Data collection was completed in October 2020, with 3 patients and 32 eligible people without therapy who passed the eligibility check. Conclusions Although it will not be possible to investigate differences in patients and people without other therapies, we expect this pilot study to provide insights into the potential of EPF to improve balance in people with LBP and adherence to such interventions. International Registered Report Identifier (IRRID) DERR1-10.2196/26982
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Affiliation(s)
- Anita Meinke
- Mobile Health Systems Lab, Institute of Robotics and Intelligent Systems, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Rick Peters
- Nursing and Allied Health Profession Office, Physiotherapy Occupational Therapy, University Hospital Zurich, Zurich, Switzerland
| | - Ruud Knols
- Directorate of Research and Education, Physiotherapy Occupational Therapy Research Center, University Hospital Zurich, Zurich, Switzerland.,Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Walter Karlen
- Mobile Health Systems Lab, Institute of Robotics and Intelligent Systems, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Jaap Swanenburg
- Directorate of Research and Education, Physiotherapy Occupational Therapy Research Center, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
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Ashtiani MN, Ashtiani MN, Oskoei MA. Cognitive perturbations affect brain cortical activity and postural control: An investigation of human EEG and motion data. Biomed Signal Process Control 2021. [DOI: 10.1016/j.bspc.2021.102955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kurt V, Aras O, Buker N. Comparison of conservative treatment with and without neural mobilization for patients with low back pain: A prospective, randomized clinical trial. J Back Musculoskelet Rehabil 2021; 33:969-975. [PMID: 32144973 DOI: 10.3233/bmr-181241] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Low back pain (LBP) is a common problem that causes pain, disability, and gait and balance problems. Neurodynamic techniques are used in the treatment of LBP. OBJECTIVE The aim of this study was to compare the effects of electrotherapy and neural mobilization on pain, functionality, gait, and balance in patients with LBP. MATERIALS AND METHODS A total of 41 patients were randomly assigned to either the neural mobilization group (NMG, n= 20) or electrotherapy group (ETG, n= 21). Assessment tools used were Visual Analogue Scale (VAS) for pain, Oswestry Disability Index (ODI) for functionality, straight leg raise test (SLRT) for neural involvement, and baropedographic platform (Zebris FDM-2TM) for gait and static balance measurements. RESULTS Both groups showed a significant decrease in pain and functional disability, while only the NMG group showed a significant increase in SLRT scores (p< 0.05). However, there were no statistically significant pre- to post-treatment changes in gait or static balance parameters in either group (p< 0.05). CONCLUSION Neural mobilization was effective in reducing pain and improving functionality and SLRT performance in patients with LBP, but induced no change in gait and static balance parameters. Neural mobilization may be used as self-practice to supplement standard treatment programs.
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Affiliation(s)
- Vedat Kurt
- Deparment of Physiotherapy and Rehabilitation, Faculty of Health Science, Kutahya Health Science University, Kutahya, Turkey
| | - Ozgen Aras
- Deparment of Physiotherapy and Rehabilitation, Faculty of Health Science, Kutahya Health Science University, Kutahya, Turkey
| | - Nihal Buker
- School of Physical Therapy and Rehabilitation, Pamukkale University, Denizli, Turkey
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Loizidis T, Nikodelis T, Bakas E, Kollias I. The effects of dry needling on pain relief and functional balance in patients with sub-chronic low back pain. J Back Musculoskelet Rehabil 2021; 33:953-959. [PMID: 32310156 DOI: 10.3233/bmr-181265] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Pain relief is important both for the movement of patients suffering from low back pain and the quality of life. Dry needling is effective on myofascial trigger points but its effect on the area of pain and the functional balance is not fully known. OBJECTIVE To examine the immediate effect of dry needling on pain and functional balance of patients suffering from low back pain. METHODS Twenty five patients with sub-chronic low back pain were randomly divided into two groups: the intervention or control group. Needles were used for the participants of the intervention group, bilaterally at the spinus level, one and a half finger breath from the midline in levels L2-L5 of the lumbar spine. A third line of needles was inserted in the interspinosus spaces, except L5-S1 level. Bipedal stance, lateral loading and mediolateral body sway were assessed using a pair of force plates. Pain tolerance was assessed using an algometer. RESULTS The pain tolerance significantly increased in the intervention group from (M = 4.87, SE 0.663) to (M = 6.52, SE 0.547) (F(1,23) = 7.8, p< 0.05) after intervention. During mediolateral body sway the force signal in the dominant frequency significantly increased in the intervention group from (M = 43.2, SE 4.6) to (M = 54,9, SE 3.6) (F(1,23) = 4.63, p< 0.05) after intervention, exhibiting more controlled rhythmic behavior. CONCLUSIONS Dry needling in painful areas and penetrating all the muscle groups seems to improve pain and functional balance, yet its effect on specific muscles needs to be studied further.
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Affiliation(s)
- Theodoros Loizidis
- Department of Physical and Rehabilitation Medicine, Saint Loukes Hospital, Panorama, Thessaloniki, Greece
| | - Thomas Nikodelis
- Biomechanics Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - El Bakas
- Department of Physical and Rehabilitation Medicine, Rehabilitation Center Euromedica Arogi, Thessaloniki, Greece
| | - I Kollias
- Biomechanics Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Jassi FJ, Del Antônio TT, Azevedo BO, Moraes R, George SZ, Chaves TC. Star-Shape Kinesio Taping Is Not Better Than a Minimal Intervention or Sham Kinesio Taping for Pain Intensity and Postural Control in Chronic Low Back Pain: A Randomized Controlled Trial. Arch Phys Med Rehabil 2021; 102:1352-1360.e3. [PMID: 33819489 DOI: 10.1016/j.apmr.2021.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 02/01/2023]
Abstract
OBJECTIVE This study investigated the effects of star-shape Kinesio taping (KT) compared with both sham KT and minimal intervention (MI) on pain intensity and postural control. DESIGN Randomized controlled trial. SETTING Outpatient physical therapy. PARTICIPANTS A total of 120 people with chronic low back pain (CLBP) aged 18-60 years (N=120). INTERVENTIONS Star-shape KT, sham KT (no tension), and MI (educational booklet for self-management counseling). MAIN OUTCOME MEASURES The primary outcome measures were pain intensity and center of pressure (COP) mean sway speed, and disability score (Oswestry Disability Index) was a secondary outcome. The outcomes were obtained immediately after initial KT application, on the seventh day of intervention and at the 1-month follow-up. Linear mixed-model analyses using Bonferroni post hoc analyses were applied to investigate between-group differences. The model included treatment, time, and treatment×time interaction as fixed effects. RESULTS Pain intensity was significantly lower for the star-shape KT group than for the MI group (mean difference [MD], -1.35; 95% confidence interval [CI], -2.63 to -0.07) immediately after the intervention and on the seventh day of intervention (MD, -1.32; 95% CI, -2.56 to -0.07). No difference in pain intensity between star-shape KT vs sham-KT groups was observed. In addition, no significant between-group differences were observed for the COP mean sway speed and disability score at any of the follow-up times. CONCLUSIONS Our results showed no meaningful effect of star-shape KT intervention on pain intensity and postural control in people with CLBP compared with MI or sham KT. The observed reduction of 1.3 units between star-shape KT and MI groups was statistically different, but it could not be considered clinically relevant. The results of this trial suggest that benefits from KT are more likely attributable to contextual factors rather than specific taping parameters.
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Affiliation(s)
- Fabrício José Jassi
- Centre of Health Sciences, University of North Paraná, Jacarezinho, Paraná, Brazil; Graduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Tiago Tsunoda Del Antônio
- Centre of Health Sciences, University of North Paraná, Jacarezinho, Paraná, Brazil; Graduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Beatriz Oliveira Azevedo
- Graduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Renato Moraes
- Graduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil; School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Steven Z George
- Department of Orthopaedic Surgery and Therapeutic Area Lead for Musculoskeletal and Surgical Sciences, Duke University, Durham, NC
| | - Thais Cristina Chaves
- Graduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil; Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil.
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Mohammadi M, Ghamkhar L, Alizadeh A, Shaabani M, Salavati M, Kahlaee AH. Comparison of the reliance of the postural control system on the visual, vestibular and proprioceptive inputs in chronic low back pain patients and asymptomatic participants. Gait Posture 2021; 85:266-272. [PMID: 33631457 DOI: 10.1016/j.gaitpost.2021.02.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 01/06/2021] [Accepted: 02/10/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Although proprioception deficits have been documented in chronic low back pain (CLBP) patients, little is known about adaptive strategies to provide postural control in these patients. Substitution of unreliable proprioceptive information with other afferents might be considered plausible. RESEARCH QUESTION Is the response of the postural control system dependent on the source of sensory afferents being manipulated in persons with and without CLBP? METHODS Sixty persons with and without CLBP participated in this cross-sectional study. Center of pressure (COP) displacement range, velocity, path length and area were calculated under four sensory conditions: 1) normal upright standing; 2) upright standing on a foam with eyes open and head in neutral position; 3) upright standing with eyes open and 60° cervical extension and 4) upright standing with eyes closed and 60° cervical extension. A two-way repeated measures analysis of variance was used to compare COP masseurs under different conditions and between the groups. RESULTS CLBP patients demonstrated fewer alterations to manipulation of both visual and vestibular afferents in terms of number of COP variables significantly altered. ML range and velocity in both groups and path length in the CLBP group were significantly different between conditions 2 and 4. In both groups, all COP variables except AP range increased significantly in condition 2 compared to conditions 1and 3 (p < 0.001). AP velocity was the only variable to be different between conditions 1 and 3 in both CLBP (p = 0.025) and control (p < 0.001) groups. Between group differences were significant on AP velocity (p = 0.019). SIGNIFICANCE No overweighting was observed in the vestibular or visual afferents in CLBP patients. Compensatory strategies seem to lie within proprioceptive system by reweighting afferents from different body segments. The postural control system behaved more robustly in CLBP patients while AP COP velocity was found as the most sensitive and discriminating parameter.
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Affiliation(s)
- Maryam Mohammadi
- Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Leila Ghamkhar
- Rofeideh Rehabilitation Hospital Clinical Research Development Center, Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Alireza Alizadeh
- Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Moslem Shaabani
- Audiology Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mahyar Salavati
- Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Amir H Kahlaee
- Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
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Postural Stability in Individuals with and without Sacroiliac Joint Dysfunction Before and After Pelvic Belt Application. ARCHIVES OF NEUROSCIENCE 2021. [DOI: 10.5812/ans.106242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Sacroiliac Joint Dysfunction (SIJD) is considered an origin of low-back pain. It can change the motor control strategy and postural control (PC). Objectives: We aimed to find any probable differences in PC between subjects with and without SIJD and determine the effects of the pelvic belt (PB) on PC. Methods: Thirty-eight subjects were assigned into two equal groups with and without SIJD. They started to walk from the place marked on a force plate for 10 seconds after hearing an auditory signal and performed three attempts for each foot. They repeated six more ones with PB. Raw data were imported to an excel software (version 2007) spreadsheet to calculate the reaction time (RT) and anticipatory postural adjustment (APA) as the components of PC. Results: Our results showed a significant difference in RT between the SIJD-affected and non-affected sides (P = 0.035), but there was no significant difference in APA (P = 0.057). There were significant differences in RT and APAs between the control and SIJD-affected side groups (P = 0.001 and P = 0.010, respectively). The PB application showed a significant difference in RT and APAs of the SIJD-affected side (P = 0.001 and P = 0.047, respectively). Conclusions: It seems pain could lead to the postural sway into instability and change the motor control strategy. The proprioception signals from the neuromuscular system of SIJ improved after PB. Therefore, PB, as a feasible tool, can be recommended for PC improvement.
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Kadri MA, Violette M, Dallaire M, de Oliveira FCL, Lavallière M, Ngomo S, Beaulieu LD, Larivière C, da Silva RA. The immediate effect of two lumbar stabilization methods on postural control parameters and their reliability during two balance tasks. J Man Manip Ther 2021; 29:235-243. [PMID: 33385191 DOI: 10.1080/10669817.2020.1864961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Background: Lumbosacral orthosis (LSO) and/or the isolated contraction of the transversus abdominis muscle by the abdominal drawing-in maneuver (ADIM) can increase lumbar stiffness, consequently influencing postural control. The purpose of this study was to compare the effects of LSO and ADIM on postural control during two balance tasks and determine their reliability.Methods: Twenty participants (50% men) randomly performed three experimental conditions: 1) without lumbar stabilization, 2) with LSO), and 3) with ADIM. Each experimental condition was tested in two postural tasks: semi-tandem and one-legged stance on a force platform for 30 seconds, while the Center of pressure postural (COP) parameters were computed.Results: The two methods of lumbar stabilization were comparable and did not significantly reduce the COP values across time, even though a few individuals presented a change in their COP data above the levels of measurement errors. The reliability of these measurements was generally acceptable and sometimes excellent (≥ 0.90 and ≤10% error measurement).Conclusions: Both LSO and isolated contraction of the transversus abdominis muscle by ADIM do not change postural control in one-legged stance and in semi-tandem tasks. These results have implications for use or not these methods for postural control on a rehabilitation perspective.
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Affiliation(s)
- Mohamed Abdelhafid Kadri
- Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada
| | - Marianne Violette
- Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Saguenay, Québec, Canada
| | - Mathieu Dallaire
- Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Saguenay, Québec, Canada
| | - Fábio Carlos Lucas de Oliveira
- Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada
| | - Martin Lavallière
- Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada
| | - Suzy Ngomo
- Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada.,Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Saguenay, Québec, Canada
| | - Louis-David Beaulieu
- Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada.,Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Saguenay, Québec, Canada
| | - Christian Larivière
- Occupational Health and Safety Research Institute Robert-Sauvé, 505 boul. De Maisonneuve Ouest, Montreal, Quebec, Canada
| | - Rubens A da Silva
- Département des Sciences de la Santé, Centre intersectoriel en santé durable, Laboratoire de recherche BioNR - Université du Québec à santé (UQAC), Saguenay, Québec, Canada.,Programme de physiothérapie de l'Université McGill offert en extension à l'Université du Québec à Chicoutimi (UQAC), Saguenay, Québec, Canada
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Veeger TTJ, van Trigt B, Hu H, Bruijn SM, van Dieën JH. Fear of movement is not associated with trunk movement variability during gait in patients with low back pain. Spine J 2020; 20:1986-1994. [PMID: 32711048 DOI: 10.1016/j.spinee.2020.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/15/2020] [Accepted: 07/15/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Literature describing differences in motor control between low back pain (LBP) patients and healthy controls is very inconsistent, which may be an indication for the existence of subgroups. Pain-related psychological factors might play a role causing these differences. PURPOSE To examine the relation between fear of movement and variability of kinematics and muscle activation during gait in LBP patients. STUDY DESIGN Cross-sectional experimental design. PATIENT SAMPLE Thirty-one Chinese LBP patients. OUTCOME MEASURES Self-report measures: Visual Analog Score for pain; TAMPA-score; Physiologic measures: electromyography, range of motion. FUNCTIONAL MEASURES LBP history; the physical load of profession, physical activity. METHODS Patients were divided in high and low fear of movement groups. Participants walked on a treadmill at four speeds: very slow, slow, preferred and fast. Kinematics of the thorax and the pelvis were recorded, together with the electromyography of five bilateral trunk muscle pairs. Kinematic and electromyography data were analysed in terms of stride-to-stride pattern variability. Factor analysis was applied to assess interdependence of 11 variability measures. To test for differences between groups, a mixed-design multivariate analysis of variance was conducted. RESULTS Kinematic variability and variability of muscle activation consistently loaded on different factors and thus represented different underlying variables. No significant Group effects on variability of kinematics and muscle activation were found (Hotelling's Trace F=0.237; 0.396, p=.959; .846, respectively). Speed significantly decreased kinematic variability and increased variability in muscle activation (Hotelling's Trace F=8.363; 4.595, p<.0001; <.0001, respectively). No significant interactions between Group and Speed were found (Hotelling's Trace F=0.204; 0.100, p=.762; .963, respectively). CONCLUSIONS The results of this study do not support the hypothesis that variability in trunk kinematics and trunk muscle activation during gait in LBP patients are associated with fear of movement.
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Affiliation(s)
- Thom T J Veeger
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Bart van Trigt
- Department of Biomechanical Engineering, Delft University of Technology, Delft, the Netherlands
| | - Hai Hu
- Orthopedic Biomechanical Laboratory of the Department of Othopedic Surgery, Shanghai Jiaotong University Affliated Sixth People's Hospital, Shanghai, P.R. China
| | - Sjoerd M Bruijn
- MOVE Research Institute Amsterdam, VU University Amsterdam, Amsterdam, the Netherlands
| | - Jaap H van Dieën
- MOVE Research Institute Amsterdam, VU University Amsterdam, Amsterdam, the Netherlands.
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Karartı C, Özüdoğru A, Basat HÇ, Özsoy İ, Özsoy G, Kodak Mİ, Sezgin H, Uçar İ. Determination of Biodex Balance System Cutoff Scores in Older People With Nonspecific Back Pain: A Cross-sectional Study. J Manipulative Physiol Ther 2020; 44:85-94. [PMID: 33248744 DOI: 10.1016/j.jmpt.2020.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/19/2020] [Accepted: 07/19/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The purpose of this study was to determine cutoff scores for the Biodex Balance System (BBS) and verify if they could be used to discriminate older people with nonspecific low back pain (NSLBP) with poor postural performance from those with good postural performance. METHODS This cross-sectional study included 52 participants with NSLBP older than 65 years. One level of stability (level 5; intraclass correlation ≥0.70) and 2 conditions (eyes open and eyes closed) were selected for the testing procedure. Anterior-posterior stability index (APSI), medial-lateral stability index (MLSI), and overall stability index (OSI) scores were calculated. The participants were classified into 2 groups: high risk of falling and low risk of falling. Both the receiver operating characteristic and the area under the curve were used to determine the best BBS cutoff values. Binary logistic regression analysis was used to investigate the ability of BBS scores to predict risk of falling. RESULTS BBS cutoff scores in the eyes-open condition (APSI = 2.60, MLSI = 1.95, OSI = 2.95) and eyes-closed condition (APSI = 3.05, MLSI = 2.17, OSI = 3.25) were found to be sensitive and specific in determining postural performance. Participants with index values lower than the cutoff scores had, respectively, 6.42, 4.20, and 3.72 times lower risk of falling in the eyes-open condition and 3.33, 5.50, and 3.00 times lower risk of falling in the eyes-closed condition. The predictive characteristics of the models for risk analysis were excellent and good to excellent. CONCLUSION Our study shows that BBS cutoff scores are sensitive and specific in distinguishing between poor and good postural performance in older people with NSLBP.
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Affiliation(s)
- Caner Karartı
- Department of Physiotherapy and Rehabilitation, Kırşehir Ahi Evran University, Kırşehir, Turkey.
| | - Anıl Özüdoğru
- Department of Physiotherapy and Rehabilitation, Kırşehir Ahi Evran University, Kırşehir, Turkey
| | - Hakkı Çağdaş Basat
- Department of Orthopedics and Traumatology, Kırşehir Ahi Evran University, Kırşehir, Turkey
| | - İsmail Özsoy
- Department of Physiotherapy and Rehabilitation, Selçuk University, Konya, Turkey
| | - Gülşah Özsoy
- Department of Physiotherapy and Rehabilitation, Selçuk University, Konya, Turkey
| | - Muhammed İhsan Kodak
- Department of Physiotherapy and Rehabilitation, Kırşehir Ahi Evran University, Kırşehir, Turkey
| | - Hicabi Sezgin
- Department of Orthopedics and Traumatology, Kırşehir Ahi Evran University, Kırşehir, Turkey
| | - İlyas Uçar
- Department of Orthopedics and Traumatology, Kırşehir Ahi Evran University, Kırşehir, Turkey
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Low-Back Pain and Knee Position-Related Differences on Postural Control Measures During a One-Legged Stance in Athletes. J Sport Rehabil 2020; 30:631-637. [PMID: 33238243 DOI: 10.1123/jsr.2020-0095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/22/2020] [Accepted: 09/07/2020] [Indexed: 11/18/2022]
Abstract
CONTEXT Chronic low-back pain (CLBP) may be associated with changes in postural balance in athletes as poor postural control during sports practice. OBJECTIVE To compare the postural control of athletes with and without CLBP during 2 one-legged stance tasks and identify the center of pressure (COP) cutoff values to determine the main differences. Designed: A cross-sectional study. SETTING Laboratory of functional evaluation and human motor performance. PARTICIPANTS A total of 56 male athletes, 28 with and 28 without CLBP (mean age = 26 y). INTERVENTION The one-legged stance with knee extension and with the knee at 30° flexion tasks were measured and analyzed on a force platform. The participants completed three 30-second trials (30 s of rest between each trial). MAIN OUTCOME MEASURES The COP parameters: the area of COP, mean COP sway velocity in both the anteroposterior and mediolateral directions, and total COP displacement were computed, and a receiver operating characteristics curve analysis was applied to determine the group differences. RESULTS Athletes with CLBP had poorer postural control (P < .01) in both tasks. The 30° knee flexion reported more postural instability than the knee extension for all COP parameters (a large effect size d = 0.80).The knee extension cutoffs identified were >7.1 cm2 for the COP area, >2.6 cm/s for the COP sway velocity in the anterior-posterior direction, and >3.2 cm/s for the mediolateral direction. Whereas, the 30° knee flexion cutoffs were >10.9 cm2 for the COP area, >2.9 cm/s for the COP sway velocity in the anterior-posterior direction, and >4.1 cm/s for the mediolateral direction. Both measures showed enough sensitivity and specificity (ie, area under the curve = 0.88 in and 0.80, respectively) to discriminate both groups. CONCLUSIONS The athletes with CLBP had poorer postural control than the healthy athletes and obtained specific cutoff scores from the COP values.
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Pain Catastrophizing Is Related to Static Postural Control Impairment in Patients with Nonspecific Chronic Low Back Pain: A Cross-Sectional Study. Pain Res Manag 2020; 2020:9629526. [PMID: 33193926 PMCID: PMC7641713 DOI: 10.1155/2020/9629526] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/01/2020] [Accepted: 10/10/2020] [Indexed: 12/29/2022]
Abstract
Purpose Pain catastrophizing may contribute to the altered trunk muscle activity in patients with nonspecific chronic low back pain (NSCLBP). It is unclear if pain catastrophizing influences static postural control in patients with NSCLBP. This study aimed to investigate the relationship between pain catastrophizing and static postural control in NSCLBP patients. Methods Sixty-eight participants with NSCLBP and 40 healthy participants were recruited. Postural control was assessed by the sway area and the sway length of the center of pressure (COP) during balance tests. Pain catastrophizing in participants with NSCLBP was assessed by the Pain Catastrophizing Scale (PCS). Bilateral transversus abdominis (TrA) activation was evaluated by ultrasound imaging-measured percent change in muscle thickness. Associations between COP parameter and PCS/subscales of PCS were examined by multiple linear regression (MLR). Results Our results observed a larger COP sway area in NSCLBP group under eyes-closed condition (p < 0.001) and a lower level of voluntary activation of the bilateral TrA (p < 0.001), compared with the healthy control group. The MLR analyses revealed that the COP area sway under eyes-closed condition was significantly associated with the PCS score/helplessness score of PCS, voluntary activation of the left TrA, and age in participants with NSCLBP (β = 0.222/0.236, 0.341/0.344, and 0.328/0.325; p=0.045/0.033, 0.002, and 0.004, resp.). Conclusions Static postural control was associated with pain catastrophizing, voluntary activation of TrA, and age in participants with NSCLBP. This indicated that pain catastrophizing may affect postural control and should be considered when interpreting balance test results and managing NSCLBP.
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Eight-Week Inspiratory Muscle Training Alters Electromyography Activity of the Ankle Muscles During Overhead and Single-Leg Squats: A Randomized Controlled Trial. J Appl Biomech 2020; 37:13-20. [PMID: 33049701 DOI: 10.1123/jab.2019-0315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 08/02/2020] [Accepted: 08/12/2020] [Indexed: 11/18/2022]
Abstract
This study was conducted to evaluate the effects of 8-week inspiratory muscle training on activity in the ankle muscles of athletes with chronic low-back pain. A randomized controlled trial involving 45 men and women with chronic low-back pain was carried out. Electromyography activity in the tibialis anterior, peroneus longus, gastrocnemius medialis, and gastrocnemius lateralis muscles of the dominant leg was recorded. Secondary outcomes included biopsychosocial indices, such as pain, disability, anxiety and depression, fear-avoidance beliefs, and fear of (re)injury. Static and dynamic overhead squat tests showed that inspiratory muscle training decreased activity in the tibialis anterior, peroneus longus, and gastrocnemius medialis muscles. In the static single-leg squat test and the descending phase of the dynamic equivalent, such a decrease was observed in all the 4 muscles. Inspiratory muscle training significantly reduced pain severity and activity in the tibialis anterior, peroneus longus, and gastrocnemius medialis muscles during the ascending phase of the dynamic single-leg squat test. On the basis of the findings, 8 weeks of inspiratory muscle training may constitute useful rehabilitation for reducing excessive activity in ankle joint muscles and aiding chronic low-back pain recovery.
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Zahari Z, Ishak A, Justine M. The effectiveness of patient education in improving pain, disability and quality of life among older people with low back pain: A systematic review. J Back Musculoskelet Rehabil 2020; 33:245-254. [PMID: 31356191 DOI: 10.3233/bmr-181305] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES This study aimed to gain an overview of patient education and the effects of patient education for older people with low back pain (LBP). METHODS The search strategies were performed via EBSCO MEDLINE, EBSCO CINAHL, Science Direct, PubMed, and PEDro databases from 2006 to 2016. The keywords "patient education", "low back pain", "elderly", "older adults", "older persons" and "older people" were used during the literature search. Boolean operators were used to expand or limit the searching scope and manual exclusion was performed to choose articles eligible for this study. RESULTS A total of 2799 articles were retrieved but only five articles were related with patient education for older people with LBP. Findings suggest that patient education for older people may differ in terms of its contents such as health education, self-management, video education, and postural education. The high methodological quality of the studies revealed that patient education showed improvement in terms of pain, disability and quality of life among older people with LBP. CONCLUSIONS Patient education improved pain and had positive effects on disability and quality of life among older people with LBP. However, due to the limited number of RCTs more studies are needed to provide evidence for its effectiveness.
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Affiliation(s)
- Zarina Zahari
- Centre for Physiotherapy Studies, Faculty of Health Sciences, Universiti Teknologi MARA Selangor Campus, 42300 Puncak Alam Selangor, Malaysia
| | - Azizah Ishak
- Physiotherapy Services, Kluang Utama Specialist Hospital, Kluang Johor, Malaysia
| | - Maria Justine
- Centre for Physiotherapy Studies, Faculty of Health Sciences, Universiti Teknologi MARA Selangor Campus, 42300 Puncak Alam Selangor, Malaysia
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A case control study to investigate differences in motor control between individuals with and without non-specific low back pain during standing. PLoS One 2020; 15:e0234858. [PMID: 32628670 PMCID: PMC7337307 DOI: 10.1371/journal.pone.0234858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/03/2020] [Indexed: 12/05/2022] Open
Abstract
Recent literature has indicated altered motor control in individuals with non-specific low back pain (NSLBP). These individuals present variations in back muscular activity and center of mass (CoM) oscillations. The aim of this study is to explore the possibility of quantitatively measuring these differences using standard parameters with electronic devices. Twenty individuals with NSLBP and 20 healthy controls, matched by sex and age, performed a total of three trials under three different conditions for 90 seconds each. These conditions were standing on firm ground with eyes open, with eyes closed and standing on unstable foam with eyes open. Balance data was acquired via a Kistler force platform and muscular activity was measured by electromyography derived bilaterally from the erector spinae. Afterwards, participants were asked to complete a questionnaire on their current mood, pain rating, well-being, disability and physical activity. Descriptive data from the questionnaire showed an average acute pain score of 2.6 and an average pain score of 5.1 for the prior six weeks in the NSLBP group, while the control group reported an acute pain of 0.1 and an average pain of 0.5. For wellbeing, differences were found only for the physical scale. Average disability was low for the NSLBP group. No differences in physical activity were found among groups. A repeated measures ANOVA did not show significant differences between groups for any parameter. There was also no main effect for the standing conditions and no interaction between group and condition. Simultaneously measuring biomechanical and neuromuscular parameters, allowed for a fine grain approach to understanding motor control in individuals with NSLBP. This study did not find differences as described in the literature, and suggests further examination of factors involved in pain and control processes to better understand implications of NSLBP and possible avenues for support.
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van Dijk MJH, Smorenburg NTA, Heerkens YF, Mollema J, Kiers H, Nijhuis-van der Sanden MWG, Visser B. Assessment instruments of movement quality in patients with non-specific low back pain: A systematic review and selection of instruments. Gait Posture 2020; 76:346-357. [PMID: 31901525 DOI: 10.1016/j.gaitpost.2019.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/29/2019] [Accepted: 12/21/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Observing and analyzing movement quality (MQ) in patients with non-specific low back pain (NS-LBP) is important in the clinical reasoning of primary care physiotherapists and exercise therapists. However, there is no standardized form of assessment. RESEARCH QUESTION which MQ domains are measured with which instruments, and which activities are relevant, appropriate and methodologically sound for assessing MQ in patients with NS-LBP? METHODS The study had three phases. In phase 1 we conducted a systematic review in PubMed, CINAHL and SPORTDiscus of literature published until October 2018. The selected studies measured MQ domains with instruments that enabled us to 1) compare MQ in self-paced dynamic activities of patients with NS-LBP and healthy controls, and/or 2) determine change over time of MQ in patients with NS-LBP. In phase 2 we established relevant dynamic activities to assess in patients with NS-LBP. In phase 3 we determined appropriateness and methodological qualities of the selected instruments. RESULTS Thirty cross-sectional and three pre-post-test studies were eligible. The instruments consisted of complex (n = 19) and simple (n = 7) instrumented motion analysis systems and standardized observational tests (n = 7). We identified three domains representative for MQ: range of motion (ROM), inter-segmental coordination, and whole-body movements. In these domains, patients with NS-LBP significantly differed from healthy controls, respectively 7/12, 12/13 and 13/20 studies. Moreover, ROM and whole-body movements significantly improved over time in patients with NS-LBP (3/3 studies). Based on phase 3, we concluded that none of the instruments are appropriate to assess MQ in patients with NS-LBP in primary care. SIGNIFICANCE Forward bending, lifting, and walking seem the most relevant activities to evaluate in patients with NS-LBP. However, we found no suitable instruments to measure ROM, inter-segmental coordination, or whole-body movements as determinants of MQ in these activities in daily practice. We therefore recommend such an instrument be developed.
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Affiliation(s)
- Margriet J H van Dijk
- HU University of Applied Sciences, Institute for Human Movement Studies, Utrecht, the Netherlands.
| | - Nienke T A Smorenburg
- HU University of Applied Sciences, Institute for Human Movement Studies, Utrecht, the Netherlands
| | - Yvonne F Heerkens
- HAN University of Applied Sciences, Research Group Occupation & Health, Nijmegen & Dutch Institute of Allied Health Care, Amersfoort, the Netherlands
| | - Jurgen Mollema
- HU University of Applied Sciences, Institute for Human Movement Studies, Utrecht, the Netherlands
| | - Henri Kiers
- HU University of Applied Sciences, Institute for Human Movement Studies, Utrecht, the Netherlands
| | | | - Bart Visser
- Amsterdam University of Applied Sciences, ACHIEVE Centre of Expertise, Faculty of Health, Amsterdam, the Netherlands
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The Amount and Temporal Structure of Center of Pressure Fluctuations During Quiet Standing in Patients With Chronic Low Back Pain. Motor Control 2020; 24:91-112. [DOI: 10.1123/mc.2018-0032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/30/2019] [Accepted: 05/26/2019] [Indexed: 11/18/2022]
Abstract
The characteristics of postural sway were assessed in quiet standing under three different postural task conditions in 14 patients with nonspecific chronic low back pain and 12 healthy subjects using linear and nonlinear center of pressure parameters. The linear parameters consisted of area, the mean total velocity, sway amplitude, the SD of velocity, and the phase plane portrait. The nonlinear parameters included the Lyapunov exponent, sample entropy, and the correlation dimension. The results showed that the amount of postural sway was higher in the patients with low back pain compared with the healthy subjects. Assessing the nonlinear parameters of the center of pressure showed a lower sample entropy and a higher correlation dimension in the patients with low back pain compared with the healthy subjects. The results of this study demonstrate the greater regularity and higher dimensionality of the center of pressure fluctuations in patients with nonspecific chronic low back pain, which suggests that these patients adopt different postural control strategies to maintain an upright stance.
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Alsufiany MB, Lohman EB, Daher NS, Gang GR, Shallan AI, Jaber HM. Non-specific chronic low back pain and physical activity: A comparison of postural control and hip muscle isometric strength: A cross-sectional study. Medicine (Baltimore) 2020; 99:e18544. [PMID: 32000363 PMCID: PMC7004720 DOI: 10.1097/md.0000000000018544] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Most research on sedentary lifestyle has focused on pain and disability, while neuromuscular outcomes (postural control and strength) have received less attention. The objective of the study was to determine whether low level of physical activity is negatively associated with measures of lower body muscular strength and postural control in individuals with and without non-specific chronic low back pain (NSCLBP).Twenty-four subjects with NSCLBP (28.8 ± 5.9 years) and 24 age, gender, and body mass index matched healthy controls participated in the study. Subjects were sub-classified into 4 subgroups based on their physical activity level: Non-active NSCLBP; Active NSCLBP; Non-active healthy control; and Active healthy control. Each subgroup consisted of 12 subjects. Peak force of hip muscles strength was assessed using a handheld dynamometer. Postural control was assessed using computerized posturography and the Y Balance Test.There was no significant group by physical activity interaction for strength and static and dynamic postural control, except for static control during left single leg stance with eyes closed (P = .029). However, there was a significant difference in strength and postural control by physical activity (P < .05). Postural control and peak force of hip muscles strength were significantly associated with physical activity (r ranged from 0.50 to 0.66, P < .001 and r ranged from 0.40 to 0.59, P < .05, respectively).Postural control and hip strength were independently related to physical activity behavior. A sedentary behavior may be an important risk factor for impaired postural control and hip muscles strength, and that physical fitness is vital to neuromuscular outcomes.
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Affiliation(s)
- Muhsen B. Alsufiany
- Department of Physical Therapy
- Department of Physical Therapy, Faculty of Applied Medical Sciences, Taif University, Kingdom of Saudi Arabia
| | | | - Noha S. Daher
- Department of Allied Health Studies, School of Allied Health Professions, Loma Linda University, Loma Linda, CA
| | | | | | - Hatem M. Jaber
- Department of Allied Health Studies, School of Allied Health Professions, Loma Linda University, Loma Linda, CA
- Department of Physical Therapy, College of Rehabilitative Sciences, University of St. Augustine for Health Sciences, Austin, TX
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Reduced Trunk Coupling in Persons With Recurrent Low Back Pain Is Associated With Greater Deep-to-Superficial Trunk Muscle Activation Ratios During the Balance-Dexterity Task. J Orthop Sports Phys Ther 2019; 49:887-898. [PMID: 31092122 DOI: 10.2519/jospt.2019.8756] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Motor control dysfunction persisting during symptom remission in persons with recurrent low back pain (LBP) may contribute to the recurrence of pain. OBJECTIVES To investigate trunk control in persons in remission from recurrent LBP and in back-healthy controls using a dynamic, internally driven balance task. No differences in task performance were expected between groups, but it was hypothesized that persons with recurrent LBP would exhibit greater trunk coupling, consistent with a trunk-stiffening strategy. METHODS In this cross-sectional controlled laboratory study, persons with and without recurrent LBP (n = 19 per group) completed the balance-dexterity task, which involved balancing on one limb in standing while compressing an unstable spring with the other. Task performance measures included center-of-pressure velocity under the stance limb and vertical force variability under the spring. Trunk coupling was quantified with the coefficient of determination (R2) of an angle-angle plot of thorax-pelvis frontal plane motion. Fine-wire and surface electromyography captured activations of paraspinals and abdominals. RESULTS There were no differences between groups for any task performance measure. The group in remission from recurrent LBP exhibited reduced trunk coupling, or more dissociated thorax and pelvis motion, compared to the healthy control group (P = .024). Trunk coupling in this group was associated moderately with the lumbar multifidus-to-erector spinae activation ratio (r = 0.618, P = .006) and weakly with the internal oblique-to-external oblique ratio (r = 0.476, P = .046). CONCLUSION The balance-dexterity task is a submaximal, internally driven unstable balance task during which more dissociated trunk motion was observed in persons in remission from recurrent LBP. Findings underscore the task-dependent nature of trunk control research and assessment in persons with recurrent LBP. J Orthop Sports Phys Ther 2019;49(12):887-898. Epub 15 May 2019. doi:10.2519/jospt.2019.8756.
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Taradaj J, Rajfur K, Rajfur J, Ptaszkowski K, Ptaszkowska L, Sopel M, Rosińczuk J, Dymarek R. Effect of laser treatment on postural control parameters in patients with chronic nonspecific low back pain: a randomized placebo-controlled trial. ACTA ACUST UNITED AC 2019; 52:e8474. [PMID: 31778436 PMCID: PMC6886387 DOI: 10.1590/1414-431x20198474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 09/19/2019] [Indexed: 11/22/2022]
Abstract
The management of nonspecific lumbar pain (NSLP) using laser irradiation remains controversial. A systematic review of recently published studies indicates that the effects of laser therapy are commonly assessed using only imperfect methods in terms of measurement error. The main objective of this study was to assess static postural stability using an objective tool in patients with chronic NSLP after laser irradiation at different doses and wavelengths. In total, 68 patients were included in the laser sessions and were randomly assigned into four groups: high-intensity laser therapy at 1064 nm and 60 J/cm2 for 10 min (HILT), sham (HILT placebo), low-level laser therapy at 785 nm and 8 J/cm2 for 8 min (LLLT), and sham (LLLT placebo). In addition, all patients were supplemented with physical exercises (standard stabilization training). To assess postural stability, a double-plate stabilometric platform was used. All measurements were performed pre- and post-laser sessions (three weeks) and at follow-up time points (one and three months). Laser procedures led to more balanced posture stability in patients, although these positive changes were significant mainly for short-term observation (after 4-week therapy). In the follow-up analysis, the parameters were gradually impaired. Kruskal-Wallis analysis of variance (ANOVA) for independent variables did not show any difference between the studied groups. Low- and high-intensity laser therapy does not lead to a significant improvement in postural sway in patients with NSLP compared with standard stabilization training based on short- and long-term observations.
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Affiliation(s)
- J Taradaj
- Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland.,College of Rehabilitation Sciences, University of Manitoba, Winnipeg, Canada
| | - K Rajfur
- Faculty of Physiotherapy, Opole Medical School, Opole, Poland
| | - J Rajfur
- Faculty of Physiotherapy, Opole Medical School, Opole, Poland
| | - K Ptaszkowski
- Department of Physiotherapy, Wroclaw Medical University, Wroclaw, Poland
| | - L Ptaszkowska
- Faculty of Physiotherapy, Opole Medical School, Opole, Poland
| | - M Sopel
- Department of Nervous System Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - J Rosińczuk
- Department of Nervous System Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - R Dymarek
- Department of Nervous System Diseases, Wroclaw Medical University, Wroclaw, Poland
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Experimental knee-related pain enhances attentional interference on postural control. Eur J Appl Physiol 2019; 119:2053-2064. [PMID: 31327028 DOI: 10.1007/s00421-019-04192-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 07/13/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE To quantify how postural stability is modified during experimental pain while performing different cognitively demanding tasks. METHODS Sixteen healthy young adults participated in the experiment. Pain was induced by intramuscular injection of hypertonic saline solution (1 mL, 6%) in both vastus medialis and vastus lateralis muscles (0.9% isotonic saline was used as control). The participants stood barefoot in tandem position for 1 min on a force plate. Center of pressure (CoP) was recorded before and immediately after injections, while performing two cognitive tasks: (i) counting forwards by adding one; (ii) counting backwards by subtracting three. CoP variables-total area of displacement, velocity in anterior-posterior (AP-velocity) and medial-lateral (ML-velocity) directions, and CoP sample entropy in anterior-posterior and medial-lateral directions were displayed as the difference between the values obtained after and before each injection and compared between tasks and injections. RESULTS CoP total area ( - 84.5 ± 145.5 vs. 28.9 ± 78.5 cm2) and ML-velocity ( - 1.71 ± 2.61 vs. 0.98 ± 1.93 cm/s) decreased after the painful injection vs. Control injection while counting forward (P < 0.05). CoP total area (12.8 ± 53.9 vs. - 84.5 ± 145.5 cm2), ML-velocity ( - 0.34 ± 1.92 vs. - 1.71 ± 2.61 cm/s) and AP-velocity (1.07 ± 2.35 vs. - 0.39 ± 1.82 cm/s) increased while counting backwards vs. forwards after the painful injection (P < 0.05). CONCLUSION Pain interfered with postural stability according to the type of cognitive task performed, suggesting that pain may occupy cognitive resources, potentially resulting in poorer balance performance.
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Bacik B, Sobota G, Fredyk A, Juras G, Słomka KJ. Postural sway during single-legged standing is dependent on the preceding and subsequent action and supports the stability and mobility trade-off hypothesis in classical dancers. Sports Biomech 2019; 20:911-924. [DOI: 10.1080/14763141.2019.1617343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bogdan Bacik
- Department of Biomechanics, The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland
| | - Grzegorz Sobota
- Department of Biomechanics, The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland
| | - Artur Fredyk
- Department of Gymnastics, Dance and Fitness, The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland
| | - Grzegorz Juras
- Department of Human Motor Behavior, The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland
| | - Kajetan J. Słomka
- Department of Human Motor Behavior, The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland
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