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Asquini G, Devecchi V, Borromeo G, Viscuso D, Morato F, Locatelli M, Falla D. Predictors of pain reduction following a program of manual therapies for patients with temporomandibular disorders: A prospective observational study. Musculoskelet Sci Pract 2022; 62:102634. [PMID: 35939919 DOI: 10.1016/j.msksp.2022.102634] [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: 05/23/2022] [Revised: 07/04/2022] [Accepted: 07/22/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Clinical guidelines recommend conservative treatment for the management of temporomandibular disorders (TMD), and manual therapy (MT) is commonly applied to reduce pain and improve function. OBJECTIVES To identify predictors of pain reduction and functional improvement following a program of manual therapies (MTP) in patients with TMD and develop a first screening tool that could be used in clinical practice to facilitate decision-making. DESIGN A cohort of 102 adults with a diagnosis of TMD were treated with four weekly sessions within a MTP applied to craniomandibular structures. Candidate predictors were demographic variables, general health variables, psychosocial features, TMD characteristics and related clinical tests. A reduction of pain intensity by at least 30% after the MTP was considered a good outcome. Logistic regression was adopted to develop the predictive model and its performance was assessed considering the explained variance, calibration, and discrimination. Internal validation of the prediction models was further evaluated in 500 bootstrapped samples. RESULTS Patients experiencing pain intensity greater than 2/10 during mouth opening, positive expectations of outcome following a MTP, pain localized in the craniocervical region, and a low Central Sensitization Inventory score obtained a good outcome following the MTP. Predictive performance of the identified physical and psychological variables was characterized by high explained variance (R2 = 58%) and discrimination (AUC = 89%) after internal validation. A preliminary screening clinical tool was developed and presented as a nomogram. CONCLUSIONS The high discrimination of the prediction model revealed promising findings, although these need to be externally validated in future research. TRIAL REGISTRATION NUMBER NCT03990662.
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Schneebeli A, Falla D, Cescon C, Barbero M. Measurement of Achilles tendon loading using shear wave tensiometry: A reliability study. Musculoskelet Sci Pract 2022; 62:102665. [PMID: 36122485 DOI: 10.1016/j.msksp.2022.102665] [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: 04/11/2022] [Revised: 08/31/2022] [Accepted: 09/06/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Shear wave tensiometry is a recent promising technology which can be used to evaluate tendon loading. Knowing the clinimetric features (e.g., reliability) of this technology is important for use in clinical and research settings. OBJECTIVES To evaluate the inter-session reliability of a novel shear wave tensiometer for the assessment of Achilles tendon loading. A further aim was to test the construct validity of this device by evaluating its precision in detecting Achilles tendon loading changes induced by a plantar flexor isometric contraction of increasing intensity. METHOD Ten healthy participants were recruited. Five measurements were performed at different time points to evaluate inter-session reliability. Shear wave speed along the Achilles tendon was evaluated during different isometric contractions using a shear wave tensiometer composed of an array of four accelerometers fixed on the tendon, ranging from 4 to 8.5 cm from the calcaneal insertion of the tendon. Test-retest, intra- and inter-session reliability were determined using intraclass correlation coefficient (ICC3.1). Absolute reliability was calculated using the standard error of measurement and minimal detectable change. RESULTS Test-retest reliability was good to excellent (ICC3.1 0.87-0.99) for each of the contraction levels examined. Intra-session reliability was good to excellent (ICC3.1 0.85-0.96) and inter-session reliability was also good to excellent (ICC3.1 0.75-0.93) for each of the contraction levels. CONCLUSIONS This study confirms the reliability of this novel device. Future studies analyzing participants with Achilles tendinopathy are needed to evaluate the capability of shear wave tensiometry to detect transient changes in loading due to pathology.
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Alalawi A, Luque-Suarez A, Fernandez-Sanchez M, Tejada-Villalba R, Navarro-Martin R, Devecchi V, Gallina A, Falla D. Perceived pain and disability but not fear of movement are associated with altered cervical kinematics in people with acute neck pain following a whiplash injury. Musculoskelet Sci Pract 2022; 62:102633. [PMID: 36037745 DOI: 10.1016/j.msksp.2022.102633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To determine if measures of cervical kinematics are altered in people with acute whiplash associated disorders (WAD) and secondarily, to examine whether kinematic variables are associated with self-reported outcomes. METHODS We recruited people with acute WAD within 15 days after a motor vehicle collision and asymptomatic control participants. All participants performed active neck movements at a self-determined velocity. Maximal range of motion (ROM), peak and mean velocity of movement, smoothness of movement, and cervical joint position error were assessed. Moreover, self-reported measures of perceived pain and disability, pain catastrophising, and fear of movement were obtained. RESULTS Sixty people participated: 18 with acute WAD (mean age [SD] 38.7 [12.0]) and 42 as asymptomatic controls (mean age [SD] 38.4 [10.2]). Participants with acute WAD showed significantly decreased ROM in all movement directions (p < 0.0001). All participants with acute WAD showed a reduction in the mean and peak velocity of movement in all directions (p < 0.0001) and the number of velocity peaks was significantly higher (i.e., reduced smoothness of movement) in those with acute WAD in all directions (p < 0.0001). Repositioning acuity following cervical rotation was not significantly different between groups. Neck pain-related disability showed the largest number of significant associations with kinematic features, while fear of movement was not associated with measures of cervical kinematics. CONCLUSIONS Participants with acute WAD presented with altered cervical kinematics compared to asymptomatic participants. Several measures of cervical kinematics were associated with the level of pain and disability in people with acute WAD but not their fear of movement.
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Martinez-Valdes E, Negro F, Botter A, Pincheira PA, Cerone GL, Falla D, Lichtwark GA, Cresswell AG. Modulations in motor unit discharge are related to changes in fascicle length during isometric contractions. J Appl Physiol (1985) 2022; 133:1136-1148. [PMID: 36227169 PMCID: PMC9639771 DOI: 10.1152/japplphysiol.00758.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The integration of electromyography (EMG) and ultrasound imaging has provided important information about the mechanisms of muscle activation and contraction. Unfortunately, conventional bipolar EMG does not allow an accurate assessment of the interplay between the neural drive received by muscles, changes in fascicle length and torque. We aimed to assess the relationship between modulations in tibialis anterior muscle (TA) motor unit (MU) discharge, fascicle length, and dorsiflexion torque using ultrasound-transparent high-density EMG electrodes. EMG and ultrasound images were recorded simultaneously from TA using a 32-electrode silicon matrix while performing isometric dorsiflexion contractions at two ankle joint positions (0° or 30° plantar flexion) and torques (20% or 40% of maximum). EMG signals were decomposed into MUs and changes in fascicle length were assessed with a fascicle-tracking algorithm. MU firings were converted into a cumulative spike train (CST) that was cross-correlated with torque (CST-torque) and fascicle length (CST-length). High cross-correlations were found for CST-length (0.60, range: 0.31–0.85) and CST-torque (0.71, range: 0.31–0.88). Cross-correlation delays revealed that the delay between CST-fascicle length (∼75 ms) was smaller than CST-torque (∼150 ms, P < 0.001). These delays affected MU recruitment and de-recruitment thresholds since the fascicle length at which MUs were recruited and de-recruited was similar but MU recruitment-de-recruitment torque varied. This study demonstrates that changes in TA fascicle length are related to modulations in MU firing and dorsiflexion torque. These relationships allow assessment of the interplay between neural drive, muscle contraction and torque, enabling the time required to convert neural activity into movement to be quantified. NEW & NOTEWORTHY By employing ultrasound-transparent high-density EMG electrodes, we show that modulations in tibialis anterior muscle motor unit discharge rate were related to both changes in fascicle length and resultant torque. These relationships permitted the quantification of the relative delays between fluctuations in neural drive, muscle contraction, and transfer of torque via the tendon during sustained isometric dorsiflexion contractions, providing information on the conversion of neural activity into muscle force during a contraction.
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Lam KN, Heneghan NR, Mistry J, Ojoawo AO, Peolsson A, Verhagen AP, Tampin B, Thoomes E, Jull G, Scholten-Peeters GGM, Slater H, Moloney N, Hall T, Dedering Å, Rushton A, Falla D. Classification criteria for cervical radiculopathy: An international e-Delphi study. Musculoskelet Sci Pract 2022; 61:102596. [PMID: 35671539 DOI: 10.1016/j.msksp.2022.102596] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 03/08/2022] [Accepted: 05/30/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Establishing a set of uniform classification criteria (CC) for cervical radiculopathy (CR) is required to aid future recruitment of homogenous populations to clinical trials. OBJECTIVES To establish expert informed consensus on CC for CR. DESIGN A pre-defined four round e-Delphi study in accordance with the guidance on Conducting and Reporting Delphi Studies. METHODS Individuals with a background in physiotherapy who had authored two or more peer-reviewed publications on CR were invited to participate. The initial round asked opinions on CC for CR. Content analysis was performed on round one output and a list of discrete items were generated forming the round two survey. In rounds two to four, participants were asked to rate the level of importance of each item on a six-point Likert scale. Data were analysed descriptively using median, interquartile range and percentage agreement. Items reaching pre-defined consensus criteria were carried forward to the next round. Items remaining after the fourth round constituted expert consensus on CC for CR. RESULTS Twelve participants participated with one drop out. The final round identified one inclusion CC and 12 exclusion CC. The inclusion CC that remained achieved 82% agreement and was a cluster criterion consisting of radicular pain with arm pain worse than neck pain; paraesthesia or numbness and/or weakness and/or altered reflex; MRI confirmed nerve root compression compatible with clinical findings. CONCLUSIONS The CC identified can be used to inform eligibility criteria for future CR trials although caution should be practiced as consensus on measurement tools requires further investigation.
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Jadhakhan F, Evans D, Falla D. Early interventions for post-traumatic stress following musculoskeletal trauma: protocol for a systematic review and meta-analysis. BMJ Open 2022; 12:e065590. [PMID: 36153010 PMCID: PMC9511568 DOI: 10.1136/bmjopen-2022-065590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Post-traumatic stress symptoms (PTSS) can be triggered following exposure to a traumatic event, such as violence, disasters, serious accidents and injury. Little is known about which interventions provide the greatest benefit for PTSS. This systematic review aims to estimate the effects of early interventions on PTSS following musculoskeletal trauma. METHODS/ANALYSIS Development of this review protocol was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols checklist. This review will include randomised controlled trials and non-randomised controlled studies evaluating the effect of early (within 3 months of a traumatic event) non-pharmacological and non-surgical interventions on PTSS in adults (aged ≥18 years). MEDLINE, PsycINFO, Embase, CINAHL, Zetoc, PROSPERO, Web of Science, PubMed and Google Scholar, as well as key journals/grey literature, will be searched from inception to 31 July 2022. Only articles published in English will be considered. Two independent reviewers will search, screen studies, extract data and assess risk of bias using the Cochrane Risk of Bias tool V.2 (RoB 2) and the Risk Of Bias in Non-randomised Studies of Interventions (ROBINS-I), respectively. Mean difference or standardised mean difference (SMD) will be extracted with accompanying 95% CIs and p values where these are reported. Group effect size will be extracted and reported. Symptoms of PTSS will be ascertained using SMDs (continuous) and diagnosis of PTSS using risk ratio (dichotomous). If possible, study results will be pooled into a meta-analysis. A narrative synthesis of the results will be presented if heterogeneity is high. The overall quality of evidence and risk of bias will be assessed using the Grading of Recommendations Assessment, Development and Evaluation, RoB 2 and ROBINS-I guidelines, respectively. ETHICS AND DISSEMINATION Ethical approval is not required for this systematic review since data from published studies will be used. This review is expected to provide a better understanding of the effect of early intervention for PTSS following musculoskeletal trauma. Findings of this review will be disseminated in peer-reviewed publications and through national and international conferences. PROSPERO REGISTRATION NUMBER CRD42022333905.
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Anarte-Lazo E, Bernal-Utrera C, Lopez-Amor M, Porras-Valencia E, Ruy-Diaz-Rojas FJ, Falla D, Rodriguez-Blanco C. Exercise-induced hypoalgesia after aerobic versus neck-specific exercise in people with acute/subacute whiplash-associated disorders: protocol for a randomised controlled trial. BMJ Open 2022; 12:e061679. [PMID: 36137629 PMCID: PMC9511575 DOI: 10.1136/bmjopen-2022-061679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION A disturbance in exercise-induced hypoalgesia (EIH) has been observed in patients with chronic whiplash-associated disorders (WAD). Yet, no studies have examined whether EIH occurs in people with acute/subacute WAD. This study will determine whether EIH occurs immediately after and 24 hours after aerobic exercise (AE) and neck-specific exercise (NSE) in people with acute/subacute WAD. METHODS AND ANALYSIS A randomised controlled trial has been designed and is reported in line with the Standard Protocol Items: Recommendations for Interventional Trials. EIH will be assessed immediately after and 24 hours after AE, NSE and a control intervention (randomly allocated). As dependent variables of the study, we will measure pressure pain thresholds measured over the region of the spinous process of C2 and C5, the muscle belly of the tibialis anterior and over the three main peripheral nerve trunks, Neck Pain Intensity, Neck-Disability Index, Pain Catastrophizing Scale, Tampa Scale Kinesiophobia-11, self-reported Leeds Assessment of Neuropathic Symptoms and Signs Scale. ETHICS APPROVAL AND DISSEMINATION Ethical approval has been granted by the Ethics Committee from University Rey Juan Carlos (Madrid, Spain; reference number 0707202116721). The results of this study will be disseminated through presentations at scientific conferences and publication in scientific journals. TRIAL REGISTRATION NUMBER RBR-9tqr2jt, https://ensaiosclinicos.gov.br/observador/submissao/sumario/11551.
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Matthews D, Cancino EE, Falla D, Khatibi A. Exploring pain interference with motor skill learning in humans: A systematic review. PLoS One 2022; 17:e0274403. [PMID: 36099284 PMCID: PMC9470002 DOI: 10.1371/journal.pone.0274403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 08/26/2022] [Indexed: 11/20/2022] Open
Abstract
Motor learning underpins successful motor skill acquisition. Although it is well known that pain changes the way we move, it’s impact on motor learning is less clear. The aim of this systematic review was to synthesize evidence on the impact of experimental and clinical pain on task performance and activity-dependent plasticity measures across learning and explore these findings in relation to different pain and motor learning paradigms. Five databases were searched: Web of Science, Scopus, MEDLINE, Embase and CINAHL. Two reviewers independently screened the studies, extracted data, and assessed risk of bias using the Cochrane ROB2 and ROBIN-I. The overall strength of evidence was rated using the GRADE guidelines. Due to the heterogeneity of study methodologies a narrative synthesis was employed. Twenty studies were included in the review: fifteen experimental pain and five clinical pain studies, covering multiple motor paradigms. GRADE scores for all outcome measures suggested limited confidence in the reported effect for experimental pain and clinical pain, on motor learning. There was no impact of pain on any of the task performance measures following acquisition except for ‘accuracy’ during a tongue protrusion visuomotor task and ‘timing of errors’ during a motor adaptation locomotion task. Task performance measures at retention, and activity dependent measures at both acquisition and retention showed conflicting results. This review delivers a detailed synthesis of research studies exploring the impact of pain on motor learning. This is despite the challenges provided by the heterogeneity of motor learning paradigms, outcome measures and pain paradigms employed in these studies. The results highlight important questions for further research with the goal of strengthening the confidence of findings in this area.
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Belavy DL, Armbrecht G, Albracht K, Brisby H, Falla D, Scheuring R, Sovelius R, Wilke HJ, Rennerfelt K, Martinez-Valdes E, Arvanitidis M, Goell F, Braunstein B, Kaczorowski S, Karner V, Arora NK. Cervical spine and muscle adaptation after spaceflight and relationship to herniation risk: protocol from 'Cervical in Space' trial. BMC Musculoskelet Disord 2022; 23:772. [PMID: 35964076 PMCID: PMC9375326 DOI: 10.1186/s12891-022-05684-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/24/2022] [Indexed: 11/21/2022] Open
Abstract
Background Astronauts have a higher risk of cervical intervertebral disc herniation. Several mechanisms have been attributed as causative factors for this increased risk. However, most of the previous studies have examined potential causal factors for lumbar intervertebral disc herniation only. Hence, we aim to conduct a study to identify the various changes in the cervical spine that lead to an increased risk of cervical disc herniation after spaceflight. Methods A cohort study with astronauts will be conducted. The data collection will involve four main components: a) Magnetic resonance imaging (MRI); b) cervical 3D kinematics; c) an Integrated Protocol consisting of maximal and submaximal voluntary contractions of the neck muscles, endurance testing of the neck muscles, neck muscle fatigue testing and questionnaires; and d) dual energy X-ray absorptiometry (DXA) examination. Measurements will be conducted at several time points before and after astronauts visit the International Space Station. The main outcomes of interest are adaptations in the cervical discs, muscles and bones. Discussion Astronauts are at higher risk of cervical disc herniation, but contributing factors remain unclear. The results of this study will inform future preventive measures for astronauts and will also contribute to the understanding of intervertebral disc herniation risk in the cervical spine for people on Earth. In addition, we anticipate deeper insight into the aetiology of neck pain with this research project. Trial registration German Clinical Trials Register, DRKS00026777. Registered on 08 October 2021. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05684-0.
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Jadhakhan F, Lambert N, Middlebrook N, Evans DW, Falla D. Is exercise/physical activity effective at reducing symptoms of post-traumatic stress disorder in adults — A systematic review. Front Psychol 2022; 13:943479. [PMID: 36033016 PMCID: PMC9412746 DOI: 10.3389/fpsyg.2022.943479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundExercise has been used to manage symptoms of post-traumatic stress disorder (PTSD). The effect of exercise on PTSD outcomes has been previously explored in several studies. However, it still remains unclear what type of exercise/physical activity, intensity and duration is most effective for reducing symptoms of PTSD. A systematic review was conducted to determine which forms of exercise or physical activity have the greatest effect on PTSD outcome scores including an evaluation of exercise frequency and volume.MethodsThe following electronic databases were systematically searched from January 1980 to June 2021: MEDLINE, PsycINFO, PubMed and Web of Science. Inclusion criteria were studies investigating adults aged 18 or over, reporting the effect of exercise and physical activities on PTSD symptom outcome scores. Two reviewers independently extracted information on study characteristics, exposure and outcomes. In total of 3,217 articles were screened and 23 full text articles further assessed, with 13 RCT's included in the review, covering seven exercise/physical activity interventions. The study protocol was registered prospectively with PROSPERO (CRD42021255131).ResultsThirteen studies from four countries involving a total of 531 patients were selected for inclusion. Individual forms of exercise/physical activity examined showed some effect on reducing PTSD symptoms but combined exercises (resistance training, aerobic, strength and yoga) administered over a 12 week period, three times a week for 30–60 min showed greater effects on PTSD symptoms.ConclusionThe limited evidence suggests that a combined exercise intervention has the best evidence for a having a beneficial effect on PTSD symptoms.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?RecordID=255131.
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D’Anna C, Varrecchia T, Ranavolo A, De Nunzio AM, Falla D, Draicchio F, Conforto S. Centre of pressure parameters for the assessment of biomechanical risk in fatiguing frequency-dependent lifting activities. PLoS One 2022; 17:e0266731. [PMID: 35947818 PMCID: PMC9365398 DOI: 10.1371/journal.pone.0266731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 03/28/2022] [Indexed: 11/19/2022] Open
Abstract
Lifting tasks, among manual material handling activities, are those mainly associated with low back pain. In recent years, several instrumental-based tools were developed to quantitatively assess the biomechanical risk during lifting activities. In this study, parameters related to balance and extracted from the Centre of Pressure (CoP) data series are studied in fatiguing frequency-dependent lifting activities to: i) explore the possibility of classifying people with LBP and asymptomatic people during the execution of task; ii) examine the assessment of the risk levels associated with repetitive lifting activities, iii) enhance current understanding of postural control strategies during lifting tasks. Data were recorded from 14 asymptomatic participants and 7 participants with low back pain. The participants performed lifting tasks in three different lifting conditions (with increasing lifting frequency and risk levels) and kinetic and surface electromyography (sEMG) data were acquired. Kinetic data were used to calculated the CoP and parameters extracted from the latter show a discriminant capacity for the groups and the risk levels. Furthermore, sEMG parameters show a trend compatible with myoelectric manifestations of muscular fatigue. Correlation results between sEMG and CoP velocity parameters revealed a positive correlation between amplitude sEMG parameters and CoP velocity in both groups and a negative correlation between frequency sEMG parameters and CoP velocity. The current findings suggest that it is possible to quantitatively assess the risk level when monitoring fatiguing lifting tasks by using CoP parameters as well as identify different motor strategies between people with and without LBP.
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Hunjan M, Devecchi V, Bardhan A, Harper N, Falla D, Hegearty A. 488 Ground reaction forces(GRF) in patients with epidermolysis bullosa simplex(EBS) during walking. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.497] [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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Evans DW, Rushton A, Middlebrook N, Bishop J, Barbero M, Patel J, Falla D. Estimating Risk of Chronic Pain and Disability Following Musculoskeletal Trauma in the United Kingdom. JAMA Netw Open 2022; 5:e2228870. [PMID: 36018591 PMCID: PMC9419019 DOI: 10.1001/jamanetworkopen.2022.28870] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
IMPORTANCE Serious traumatic injury is a leading cause of death and disability globally, with most survivors known to develop chronic pain. OBJECTIVE To describe early variables associated with poor long-term outcome for posttrauma pain and create a clinical screening tool for this purpose. DESIGN, SETTING, AND PARTICIPANTS This was a prospective cohort study at a major trauma center hospital in England. Recruitment commenced in December 2018 and ceased in March 2020. Participants were followed up for 12 months. Patients aged 16 years or older who were hospitalized because of acute musculoskeletal trauma within the preceding 14 days were included. Data were analyzed from March to December 2021. EXPOSURE Acute musculoskeletal trauma requiring admittance to a major trauma center hospital. MAIN OUTCOMES AND MEASURES A poor outcome was defined as Chronic Pain Grade II or higher and measured at both 6 months (primary time point) and 12 months. A broad range of candidate variables potentially associated with outcomes were used, including surrogates for pain mechanisms, quantitative sensory testing, and psychosocial factors. Univariable models were used to identify the variables most likely to be associated with poor outcome, which were entered into multivariable models. A clinical screening tool (nomogram) was derived from 6-month results. RESULTS In total, 1590 consecutive patients were assessed for eligibility, of whom 772 were deemed eligible and 124 (80 male [64.5%]; mean [SD] age, 48.9 [18.8] years) were recruited. At 6 months, 19 of 82 respondents (23.2%) reported a good outcome, whereas at 12 months 27 of 44 respondents (61.4%) reported a good outcome. At 6 months on univariable analysis, an increase in total posttraumatic stress symptoms (odds ratio [OR], 2.09; 95% CI, 1.33-3.28), pain intensity average (OR, 2.87; 95% CI, 1.37-6.00), number of fractures (OR, 2.79; 95% CI, 1.02-7.64), and pain extent (OR, 4.67; 95% CI, 1.57-13.87) were associated with worse outcomes. A multivariable model including those variables had a sensitivity of 0.93, a specificity of 0.54, and C-index of 0.92. CONCLUSIONS AND RELEVANCE A poor long-term pain outcome from musculoskeletal traumatic injuries may be estimated by measures recorded within days of injury. These findings suggest that posttraumatic stress symptoms, pain spatial distribution, perceived average pain intensity, and number of fractures are good candidates for a sensitive multivariable model and derived clinical screening tool.
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Giménez-Costa M, Schomacher J, Murillo C, Blanco-Hernández T, Falla D, Lluch E. Specific versus non-specific exercises for the neck extensor muscles in women with chronic idiopathic neck pain: A randomized controlled trial. Musculoskelet Sci Pract 2022; 60:102561. [PMID: 35421696 DOI: 10.1016/j.msksp.2022.102561] [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: 10/29/2021] [Revised: 01/19/2022] [Accepted: 03/28/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Structural and functional impairments of the cervical extensor muscles have been demonstrated in people with neck pain. A global exercise approach targeting all neck extensor muscles has shown positive effects in this population. However, to date, the efficacy of exercises specifically targeting the deep neck extensors has neither been tested nor compared to global exercises for the neck extensors. OBJECTIVES To compare the effects on pain and disability of a specific lower deep neck extensors (SLDNE) versus a general neck extensor (GNE) exercise program in women with chronic idiopathic neck pain. METHODS Fourty-three women with chronic idiopathic neck pain were randomly allocated to either a six-week SLDNE or a GNE exercise program. As primary outcome, neck disability was measured with the Neck Disability Index (NDI). Secondarily, pain intensity (VAS), cervical ROM, pressure pain thresholds (PPTs), cervical and thoracic posture and self-perceived benefit of treatment (GROC) were also measured. Every outcome was measured at baseline and immediately after treatment, except NDI, which was also measured at 6-months follow-up. The GROC was only assessed post-intervention. RESULTS Both exercise programs lead to reduced neck disability immediately post-intervention (within-group mean difference [MD] = -6.09; 95% Confidence Interval [CI]: 7.75, -4.42 and -4.73; 95%CI: 6.57, -2.91 respectively) and at the 6-months follow-up (-4.47; 95%CI: 6.41, -2.53 and -4.74; 95%CI: 6.50, -2.97), but with no between group differences. Similar results were found for pain intensity post-intervention, with no between group interaction (within-group MD = -20.87 mm; 95% CI: 28.55, -13.19 and -18.00 mm; 95%CI: (-26.24, -9.76) for SLDNE and GNE groups, respectively). GROC improved after both interventions without any between-group difference. CONCLUSIONS A six-week exercise program specifically targeting the lower deep neck extensors lead to comparable outcomes as a general neck extensor exercise program in women with chronic idiopathic neck pain.
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Luque-Suarez A, Falla D, Barbero M, Pineda-Galan C, Marco D, Giuffrida V, Martinez-Calderon J. Digital pain extent is associated with pain intensity but not with pain-related cognitions and disability in people with chronic musculoskeletal pain: a cross-sectional study. BMC Musculoskelet Disord 2022; 23:727. [PMID: 35906575 PMCID: PMC9338608 DOI: 10.1186/s12891-022-05700-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 07/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background To evaluate whether digital pain extent is associated with an array of psychological factors such as optimism, pessimism, expectations of recovery, pain acceptance, and pain self-efficacy beliefs as well as to analyse the association between digital pain extent and pain intensity and pain-related disability in people with chronic musculoskeletal pain. Methods A descriptive cross-sectional study conducted in a primary health care setting was carried out including 186 individuals with chronic musculoskeletal pain. Patient-reported outcomes were used to assess psychological factors, pain intensity, and pain-related disability. Digital pain extent was obtained from pain drawings shaded using a tablet and analysed using novel customized software. Multiple linear regression models were conducted to evaluate the association between digital pain extent and the aforementioned variables. Results Digital pain extent was statistically significantly associated with pain intensity. However, digital pain extent was not associated with any psychological measure nor with pain-related disability. Discussion The results did not support an association between digital pain extent and psychological measures.
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Contreras-Hernandez I, Falla D, Martinez-Valdes E. Neuromuscular and structural tendon adaptations after 6 weeks of either concentric or eccentric exercise in individuals with non-insertional Achilles tendinopathy: protocol for a randomised controlled trial. BMJ Open 2022; 12:e058683. [PMID: 35906051 PMCID: PMC9345075 DOI: 10.1136/bmjopen-2021-058683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION There is limited evidence on the neural strategies employed by the central nervous system to control muscle force in the presence of non-insertional Achilles tendinopathy (NIAT). Additionally, the neuromuscular mechanisms by which exercise may help to resolve tendon pain remain unclear. OBJECTIVE This study aims to first establish changes in the gastrocnemius-soleus motor unit firing properties after applying a training protocol of 6 weeks based on either controlled eccentric or concentric contractions in individuals with NIAT. Second, we want to determine changes in the level of pain and function and mechanical and structural properties of the Achilles tendon after applying the same training protocol. Additionally, we want to compare these variables at baseline between individuals with NIAT and asymptomatic controls. METHODS AND ANALYSIS A total of 26 individuals with chronic (>3 months) NIAT and 13 healthy controls will participate in the study. Individuals with NIAT will be randomised to perform eccentric or concentric training for 6 weeks. Motor unit firing properties of the medial gastrocnemius, lateral gastrocnemius and soleus muscles will be assessed using high-density surface electromyography, as well as Achilles tendon length, cross-sectional area, thickness and stiffness using B-mode ultrasonography and shear wave elastography. Moreover, participants will complete a battery of questionnaires to document their level of pain and function. ETHICS AND DISSEMINATION Ethical approval (ERN-20-0604A) for the study was obtained from the Science, Technology, Engineering and Mathematics Ethical Review Committee of the University of Birmingham. The results of the study will be published in peer-review journals. TRIAL REGISTRATION NUMBER ISRCTN46462385.
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Althobaiti S, Rushton A, Aldahas A, Falla D, Heneghan NR. Practicable performance-based outcome measures of trunk muscle strength and their measurement properties: A systematic review and narrative synthesis. PLoS One 2022; 17:e0270101. [PMID: 35714149 PMCID: PMC9205516 DOI: 10.1371/journal.pone.0270101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/04/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction
The evaluation of muscle strength is frequently used as part of the physical examination process, with decreased trunk muscle strength reported in individuals with spinal disorders (e.g., low back pain). Access to practicable performance-based outcome measures (PBOM) to monitor patients’ progress in spinal rehabilitation is essential. Knowledge of the psychometric properties of the available practicable PBOM for trunk strength evaluation is therefore needed to inform practitioners and further research.
Objective
To synthesise evidence on the measurement properties of practicable measures of trunk muscle strength in adults with and without musculoskeletal pain.
Methods
Following a published and registered protocol [PROSPERO CRD42020167464], databases were searched from the database inception date up to 30th of June 2021. Citations and grey literature were also searched. Eligibility criteria comprised: 1) studies which examined the psychometric properties of the trunk strength outcome measures, 2) included adults ≥ 18 years, either asymptomatic or with spinal musculoskeletal pain. Non-English language studies were excluded. Two independent reviewers evaluated the quality and synthesized the data from included studies according to the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) checklist. The overall quality of evidence was evaluated using a modified Grading of Recommendations Assessment Development and Evaluation (GRADE).
Results
From 34 included studies, 15 different PBOMs were identified that have been investigated for reliability and validity, none evaluated responsiveness. In asymptomatic individuals, high quality evidence supports intra-rater reliability of digital-loading cells and moderate quality evidence supports the criterion validity of the hand-held dynamometer. Very low quality evidence exists for the reliability and validity estimates of testing tools among individuals with spinal pain.
Conclusions
Findings underpin a cautious recommendation for the use of practicable PROMs to evaluate muscle strength in individuals with spinal pain in clinical practice due to the level of evidence and the heterogeneity of the protocols used. Further high quality research to explore the psychometric properties of the practicable PBOMs with detailed methodology is now needed.
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Jadhakhan F, Sobeih R, Falla D. Effects of exercise/physical activity on fear of movement in people with spine-related pain: protocol for a systematic review and meta-analysis. BMJ Open 2022; 12:e060264. [PMID: 35589367 PMCID: PMC9121489 DOI: 10.1136/bmjopen-2021-060264] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Low back pain and neck pain are leading causes of disability. Although several studies have examined the effect of exercise on fear of movement in people with spine-related pain, the overall evidence supporting the beneficial effect of different forms of exercise on fear of movement remains unknown. This systematic review will determine the strength of evidence for the effect of exercise/physical activity on fear of movement in people with non-specific spine-related pain. METHODS/ANALYSIS This review protocol was developed following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols. The review will include randomised controlled trials and non-randomised studies that recruited adults (≥18 years) with chronic non-specific spine-related pain and where a validated measure of fear of movement/kinesiophobia such as the Tampa Scale of Kinesiophobia (TSK) and the Fear Avoidance Behaviour Questionnaire (FABQ) or any other validated measures to ascertain fear of movement/kinesiophobia was employed. Bibliographic databases include MEDLINE, PsycINFO, EMBASE, CINAHL, ZETOC, Web of Science, PubMed and Google Scholar as well as key journals/grey literature will be searched from inception to 31 January 2022. Only articles published in English will be considered eligible. Two independent reviewers will search, screen studies, extract data and assess risk of bias. Preintervention and postintervention mean and SD with 95% CI of the outcome data (TSK or FABQ) will be extracted or estimated where possible. If possible, study results will be pooled into a meta-analysis. A narrative synthesis of the results will be presented if heterogeneity is high. The overall quality of evidence and risk of bias will be assessed using the Grading of Recommendations Assessment, Development and Evaluation and Risk Of Bias in Non-randomised Studies of Interventions guidelines. ETHICS AND DISSEMINATION This systematic review does not require ethical approval as existing data will be used. The results will be disseminated through a peer-reviewed journal and via national and international conferences. PROSPERO REGISTRATION NUMBER CRD42021295755.
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Thoomes E, Thoomes-de Graaf M, Cleland JA, Gallina A, Falla D. Timing of Evidence-Based Nonsurgical Interventions as Part of Multimodal Treatment Guidelines for the Management of Cervical Radiculopathy: A Delphi Study. Phys Ther 2022; 102:6506308. [PMID: 35079842 DOI: 10.1093/ptj/pzab312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 10/23/2021] [Accepted: 12/21/2021] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Conservative management of cervical radiculopathy (CR) is a first treatment option because the risk-benefit ratio for surgery is less favorable. Systematic reviews and clinical practice guidelines reporting on the effectiveness of nonsurgical management have not considered the timing of management. The aim of this study was to establish consensus on effective nonsurgical treatment modalities at different stages (ie, acute, subacute, or chronic) of CR using the Delphi method approach. METHODS Through an iterative multistage process, experts within the field rated their agreement with a list of proposed treatment modalities according to the stage of CR and could suggest missing treatment modalities. Agreement was measured using a 5-point Likert scale. Descriptive statistics were used to measure agreement (median, interquartile ranges, and percentage of agreement). Consensus criteria were defined a priori for each round. Consensus for Round 3 was based on ≥2 of the following: a median Likert scale value of ≥4, interquartile range value of ≤1, and/or a percentage of agreement ≥70%. RESULTS Data analysis produced a consensus list of effective treatment modalities in different stages of recovery. CONCLUSION According to experts, the focus of multimodal management in the acute stage should consist of patient education and spinal manipulative therapy, specific (foraminal opening) exercises, and sustained pain-relieving positions. In the subacute stage, increasing individualized physical activity including supervised motor control, specific exercises, and/or neurodynamic mobilization could be added. In the chronic stage, focus should shift to include general aerobic exercise as well as focused strength training. Postural education and vocational ergonomic assessment should also be considered. IMPACT Multimodal conservative management of individuals with CR should take the stage of the condition into consideration. The focus of therapeutic interventions should shift from passive pain-relieving intervention in the acute stage to increasingly more individualized physical activity and self-management in the chronic stage.
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Alalawi A, Devecchi V, Gallina A, Luque-Suarez A, Falla D. Assessment of Neuromuscular and Psychological Function in People with Recurrent Neck Pain during a Period of Remission: Cross-Sectional and Longitudinal Analyses. J Clin Med 2022; 11:jcm11072042. [PMID: 35407650 PMCID: PMC8999485 DOI: 10.3390/jcm11072042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 03/26/2022] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to examine for the presence of differences in neuromuscular and psychological function in individuals with recurrent neck pain (RNP) or chronic neck pain (CNP) following a whiplash trauma compared to healthy controls. A secondary aim was to examine whether neuromuscular characteristics together with psychological features in people with RNP were predictive of future painful episodes. Multiple features were assessed including neck disability, kinesiophobia, quality of life, cervical kinematics, proprioception, activity of superficial neck flexor muscles, maximum neck flexion and extension strength, and perceived exertion during submaximal contractions. Overall, those with RNP (n = 22) and CNP (n = 8) presented with higher neck disability, greater kinesiophobia, lower quality of life, slower and irregular neck movements, and less neck strength compared to controls (n = 15). Prediction analysis in the RNP group revealed that a higher number of previous pain episodes within the last 12 months along with lower neck flexion strength were predictors of higher neck disability at a 6-month follow-up. This preliminary study shows that participants with RNP presented with some degree of altered neuromuscular features and poorer psychological function with respect to healthy controls and these features were similar to those with CNP. Neck flexor weakness was predictive of future neck disability.
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Piancino MG, Tortarolo A, Di Benedetto L, Crincoli V, Falla D. Chewing Patterns and Muscular Activation in Deep Bite Malocclusion. J Clin Med 2022; 11:jcm11061702. [PMID: 35330027 PMCID: PMC8951496 DOI: 10.3390/jcm11061702] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Deep bite, a frequent malocclusion with a high relapse rate, is associated with craniofacial features that need to be considered in the course of orthodontic treatment. Methods: This study included 81 patients with deep bite malocclusion (11.4 ± 1.1 [yr.mo]; M = 32 and F = 49), and 14 age- and gender-matched controls (9.11 ± 1 [yr.mo]; M = 5 and F = 9). The patients with deep bite malocclusion were treated with functional therapy. The chewing cycles and masticatory muscle EMG activity were recorded concomitantly before treatment in both groups (n = 95). Following correction of the malocclusion, a second recording took place (n = 25). Results: The kinematic variables showed the same dependency on bolus hardness in those with deep bite and in the controls. The masticatory muscle EMG activity was increased in those with deep bite, but decreased as a result of functional treatment. The chewing patterns showed a tendency towards a reduced lateral component, which significantly increased after treatment, indicating that functional therapy impacts the neuromuscular coordination of mastication, as well as dental positioning. Conclusions: Deep bite is a complex malocclusion, involving alterations in chewing and masticatory muscle activity. Orthognathodontic treatment should not only consider and correct the teeth position, but should also address muscular hyperactivity.
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Elgueta-Cancino E, Evans E, Martinez-Valdes E, Falla D. The Effect of Resistance Training on Motor Unit Firing Properties: A Systematic Review and Meta-Analysis. Front Physiol 2022; 13:817631. [PMID: 35295567 PMCID: PMC8918924 DOI: 10.3389/fphys.2022.817631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/24/2022] [Indexed: 11/13/2022] Open
Abstract
While neural changes are thought to be responsible for early increases in strength following resistance training (RT), the exact changes in motor unit (MU) firing properties remain unclear. This review aims to synthesize the available evidence on the effect of RT on MU firing properties. MEDLINE (OVID interface), EMBASE (OVID interface), Web of Science (all databases), Cochrane Library, EBSCO CINAHL Plus, PubMed, and EBSCO SportDiscus were searched from inception until June 2021. Randomized controlled trials and non-randomized studies of interventions that compared RT to no intervention (control) were included. Two reviewers independently extracted data from each trial, assessed the risk of bias and rated the cumulative quality of evidence. Motor unit discharge rate (MUDR), motor unit recruitment threshold (MURT), motor unit discharge rate variability (MUDRV), MU discharge rate at recruitment vs. recruitment threshold relationship, and MU discharge rate vs. recruitment threshold relationship were assessed. Seven trials including 167 participants met the inclusion criteria. Meta-analysis (four studies) revealed that MUDR did not change significantly (P = 0.43), but with considerable heterogeneity likely to be present (I2 = 91). Low to moderate evidence supports changes in MUDRV, MUDR at recruitment vs. recruitment threshold relationship, and the MUDR vs. recruitment threshold relationship. Overall, this systematic review revealed that there is a lack of high-quality evidence for the effect of RT on MU firing properties. Heterogeneity across studies undermines the quality of the evidence for multiple outcomes and affects the conclusions that can be drawn.
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Anarte-Lazo E, Bernal-Utrera C, Montaño-Ocaña J, Falla D, Rodriguez-Blanco C. Higher Neck Pain Intensity and the Presence of Psychosocial Factors are More Likely when Headache is Present After Whiplash Associated Disorders: A Case-Control Study. PAIN MEDICINE 2022; 23:1529-1535. [PMID: 35212760 DOI: 10.1093/pm/pnac038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/20/2022] [Accepted: 02/22/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Several factors such as neck pain intensity, disability, anxiety, depression, female sex or a previous history of headache, are associated with post-whiplash headache. However, the possible role of psychosocial factors contributing to the presence of headache or worsening of headache after a whiplash trauma remains unclear. To address this gap in knowledge, there is the need to assess psychosocial factors concerning headache shortly after a whiplash injury. OBJECTIVE To evaluate psychological features, pain and disability in people with acute Whiplash Associated Disorders (WAD) and compare these features between those with and without headache. DESIGN case-control study. SETTING A secondary care traumatology center. METHODS Forty-seven people with acute WAD were recruited; 28 with headache, and 19 without. All participants completed self-reported questionnaires including Visual Analogue Scale (VAS) for neck pain intensity, the Neck Disability Index (NDI), Pain Catastrophizing Scale (PCS), Tampa Scale Kinesiophobia-11 (TSK-11) and State-Trait Anxiety Inventory. RESULTS Neck pain intensity (p < 0.001), neck disability (p < 0.001), pain catastrophising (p < 0.001), kinesiophobia (p < 0.001) and anxiety state (p = 0.007) and trait (p = 0.05) were higher in those with headache when compared to those without. In addition, high levels of neck pain (p = 0.025), moderate levels of neck disability (p < 0.001), moderate levels of pain catastrophising (p = 0.015), and moderate (p = 0.002) and severe (p = 0.016) levels of kinesiophobia were related to the presence of headache. CONCLUSION The level of neck pain intensity and disability, kinesiophobia, catastrophising and anxiety were all greater in people with acute WAD who presented with a headache compared to those without headache.
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Rodríguez-Jiménez J, Ortega-Santiago R, Bonilla-Barba L, Falla D, Fernández-de-Las-Peñas C, Florencio LL. Immediate Effects of Dry Needing or Manual Pressure Release of Upper Trapezius Trigger Points on Muscle Activity during the Cranio-Cervical Flexion Test in People with Chronic Neck Pain: A Randomized Clinical Trial. PAIN MEDICINE 2022; 23:1717-1725. [PMID: 35179608 DOI: 10.1093/pm/pnac034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/21/2022] [Accepted: 02/11/2022] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To compare the effects of dry needling or manual pressure release on an active trigger point in the upper trapezius on cranio-cervical flexion test performance, pressure pain thresholds, and cervical range of motion in chronic neck pain. DESIGN A parallel randomized clinical trial. SETTING Physical therapy service. SUBJECTS Individuals with chronic neck pain. METHODS Subjects were randomized to receive dry needling (n = 25) or manual trigger point pressure release (n = 25) on upper trapezius active trigger points. Surface electromyography from upper trapezius, splenius capitis, sternocleidomastoid, and scalene muscles during performance of the cranio-cervical flexion test was assessed before and immediately after the intervention as primary outcome. Neck pain intensity, range of motion and pressure pain thresholds were the secondary outcomes. RESULTS A decrease in sternocleidomastoid activity on all stages of the cranio-cervical flexion test (time effect, p < 0.001) was found in both groups after the interventions, with no significant between-group difference. Pressure pain thresholds measured over the cervical spine and second metacarpal increased after dry needling when compared to manual trigger point pressure release (p < 0.05). Pain intensity decreased immediately after both treatments with moderate to large effect sizes, whereas cervical range of motion increased for both groups but with small effect sizes. CONCLUSION A single session of dry needling or manual pressure release over upper trapezius active trigger points promotes limited effects on muscle performance during the cranio-cervical flexion test, pressure pain thresholds and cervical range of motion in patients with chronic neck pain.
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Varrecchia T, Conforto S, De Nunzio AM, Draicchio F, Falla D, Ranavolo A. Trunk Muscle Coactivation in People with and without Low Back Pain during Fatiguing Frequency-Dependent Lifting Activities. SENSORS 2022; 22:s22041417. [PMID: 35214319 PMCID: PMC8874369 DOI: 10.3390/s22041417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 01/31/2023]
Abstract
Lifting tasks are manual material-handling activities and are commonly associated with work-related low back disorders. Instrument-based assessment tools are used to quantitatively assess the biomechanical risk associated with lifting activities. This study aims at highlighting different motor strategies in people with and without low back pain (LBP) during fatiguing frequency-dependent lifting tasks by using parameters of muscle coactivation. A total of 15 healthy controls (HC) and eight people with LBP performed three lifting tasks with a progressively increasing lifting index (LI), each lasting 15 min. Bilaterally erector spinae longissimus (ESL) activity and rectus abdominis superior (RAS) were recorded using bipolar surface electromyography systems (sEMG), and the time-varying multi-muscle coactivation function (TMCf) was computed. The TMCf can significantly discriminate each pair of LI and it is higher in LBP than HC. Collectively, our findings suggest that it is possible to identify different motor strategies between people with and without LBP. The main finding shows that LBP, to counteract pain, coactivates the trunk muscles more than HC, thereby adopting a strategy that is stiffer and more fatiguing.
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