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Almutairi SM, Khalil ME, Almutairi N, Alsaadoon SM, Alharbi DS, Al Assadi SD, Alghamdi SF, Albattah SN, Alenazi AM. Effects of Neuromuscular Electrical Stimulation on Spasticity and Walking Performance among Individuals with Chronic Stroke: A Pilot Randomized Clinical Trial. Healthcare (Basel) 2023; 11:3137. [PMID: 38132027 PMCID: PMC10742606 DOI: 10.3390/healthcare11243137] [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: 11/14/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Stroke and its associated complications are a major cause of long-term disability worldwide, with spasticity being a common and severe issue. Physical therapy, involving stretching exercises and electrical stimulation, is crucial for managing spasticity. Therefore, this study aimed to evaluate the effects of neuromuscular electrical stimulation (NMES) combined with a conventional rehabilitation program (CRP) on plantarflexor muscle spasticity and walking performance among individuals with chronic stroke. METHODS A pilot randomized clinical trial (RCT) with two groups (active NMES and placebo) was conducted at the physical therapy departments of King Fahad Specialist Hospital, Buraydah, and Sultan Bin Abdulaziz Humanitarian City, Riyadh, Saudi Arabia (November 2020). The assessor and participants were blinded for the group assignment. The active NMES group received exercise and stimulation at the dorsiflexor muscles on the paretic leg for 30 min for 12 sessions. The placebo group received exercise and sham stimulation at the same position and duration as the active group. Of interest were the outcomes for plantarflexor muscle spasticity measured by the modified Ashworth scale (MAS), gait speed measured by 10 m walk test (10-MWT), and functional mobility measured by functional ambulatory category (FAC). RESULTS Nineteen participants were randomized into active NMES (n = 10) and sham NMES (n = 9) groups, with no significant baseline differences. Within the active NMES group, significant improvements were observed in MAS (p = 0.008), 10-MWT (p = 0.028), and FAC (p = 0.046), while only 10-MWT time improved significantly in the sham NMES group (p = 0.011). Between-group analysis showed that only MAS was significantly lower in the active NMES group (p = 0.006). Percent change analysis indicated a significantly higher increase in percent change for MAS in the active NMES group compared to the sham NMES group (p = 0.035), with no significant differences in other outcome measures. CONCLUSIONS This study showed that NMES in the active group led to significant improvements in spasticity, walking performance, and functional ambulation. Further research is needed to determine the ideal parameters, protocols, and patient selection criteria for NMES interventions in stroke rehabilitation.
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Affiliation(s)
- Sattam M. Almutairi
- Department of Physical Therapy, College of Medical Rehabilitation, Qassim University, Buraydah 52571, Saudi Arabia; (M.E.K.); (S.N.A.)
| | - Mohamed E. Khalil
- Department of Physical Therapy, College of Medical Rehabilitation, Qassim University, Buraydah 52571, Saudi Arabia; (M.E.K.); (S.N.A.)
| | | | - Saud M. Alsaadoon
- Department of Rehabilitation Services and Programs, Sultan Bin Abdulaziz Humanitarian City, Riyadh 13571, Saudi Arabia; (S.M.A.); (D.S.A.); (S.D.A.A.); (S.F.A.)
| | - Dalal S. Alharbi
- Department of Rehabilitation Services and Programs, Sultan Bin Abdulaziz Humanitarian City, Riyadh 13571, Saudi Arabia; (S.M.A.); (D.S.A.); (S.D.A.A.); (S.F.A.)
| | - Sultan D. Al Assadi
- Department of Rehabilitation Services and Programs, Sultan Bin Abdulaziz Humanitarian City, Riyadh 13571, Saudi Arabia; (S.M.A.); (D.S.A.); (S.D.A.A.); (S.F.A.)
| | - Salem F. Alghamdi
- Department of Rehabilitation Services and Programs, Sultan Bin Abdulaziz Humanitarian City, Riyadh 13571, Saudi Arabia; (S.M.A.); (D.S.A.); (S.D.A.A.); (S.F.A.)
| | - Sahar N. Albattah
- Department of Physical Therapy, College of Medical Rehabilitation, Qassim University, Buraydah 52571, Saudi Arabia; (M.E.K.); (S.N.A.)
| | - Aqeel M. Alenazi
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
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Effectiveness of Physiotherapy Interventions on Spasticity in People With Multiple Sclerosis: A Systematic Review and Meta-Analysis. Am J Phys Med Rehabil 2019; 97:793-807. [PMID: 29794531 DOI: 10.1097/phm.0000000000000970] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE The aim of the study was to examine the effectiveness of physiotherapy (PT) interventions on spasticity in people with multiple sclerosis. DESIGN A systematic search was performed using PRISMA guidance. Studies evaluate the effect of PT interventions on spasticity were included. People with multiple sclerosis, spasticity, disability and PT interventions characteristics were extracted in included studies. Level of evidence was synthesized by the Grade of Recommendation, Assessment, Development and Evaluation approach. Meta-analyses were performed by calculating Hedges g at 95% confidence interval. RESULTS A total of 29 studies were included in the review, and 25 were included in the meta-analyses. The included PT interventions were exercise therapy, electrical stimulation, radial shock wave therapy, vibration, and standing. The review and meta-analyses showed different evidences of benefits and nonbenefits for PT interventions on some spasticity outcomes. The best quality evidences were for beneficial effects of exercise therapy especially robot gait training and outpatient exercise programs on self-perceived spasticity and muscle tone respectively. The review results were positive regarding the acute effects, follow-up measurements, safety, progressive MS, and nonambulatory people with multiple sclerosis. The included articles were heterogeneous and badly reported in PT interventions and people with multiple sclerosis characteristics. CONCLUSIONS Physiotherapy interventions can be a safe and beneficial option for spasticity in people with multiple sclerosis. No firm conclusion can be drawn on overall spasticity. Further researches in different spasticity aspects are needed.
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Kataoka H, Nakashima S, Aoki H, Goto K, Yamashita J, Honda Y, Kondo Y, Hirase T, Sakamoto J, Okita M. Electrical Stimulation in Addition to Passive Exercise Has a Small Effect on Spasticity and Range of Motion in Bedridden Elderly Patients: A Pilot Randomized Crossover Study. Health (London) 2019. [DOI: 10.4236/health.2019.118084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Efficiency of Neuromuscular Electrical Stimulation and Transcutaneous Nerve Stimulation on Hemiplegic Shoulder Pain: A Randomized Controlled Trial. Arch Phys Med Rehabil 2018; 99:1730-1739. [DOI: 10.1016/j.apmr.2018.04.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 01/09/2018] [Accepted: 04/18/2018] [Indexed: 11/20/2022]
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Ganesh GS, Kumari R, Pattnaik M, Mohanty P, Mishra C, Kaur P, Dakshinamoorthy A. Effectiveness of Faradic and Russian currents on plantar flexor muscle spasticity, ankle motor recovery, and functional gait in stroke patients. PHYSIOTHERAPY RESEARCH INTERNATIONAL 2018; 23:e1705. [PMID: 29417699 DOI: 10.1002/pri.1705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/20/2017] [Accepted: 01/02/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND AND PURPOSE Spasticity is a major disabling symptom in patients post stroke. Though studies have demonstrated that electrical stimulation (ES) can reduce spasticity and improve passive ankle range of motion (ROM), not many studies have evaluated the effectiveness of ES on active ankle ROM. The purpose of this study was to determine the effectiveness of Faradic and Russian currents in the reduction of ankle plantar-flexor spasticity and improving motor recovery in patients post stroke. METHODS Eighty-three patients (29 females and 54 males; mean age of 57.12 years) were randomly assigned to Group 1 (task-oriented exercises), Group 2 (Faradic current for 10 min and task-oriented exercises), and Group 3 (Russian current for 10 min and task-oriented exercises) for a period of 5 sessions per week for 6 weeks. All patients were assessed for soleus and gastrocnemius muscles spasticity measured by modified modified Ashworth scale; active and passive range ROM measured by goniometer; and functional ambulation measured by modified Emory Functional Ambulation Profile at the time of recruitment to study and after 6 weeks. RESULTS Both the types of stimulation and exercises were not associated with improvements in modified Emory Functional Ambulation Profile (p > 0.05). The results showed that all the groups are effective in improving passive ankle ROM (p < 0.05) and reducing soleus and gastrocnemius muscles spasticity (p < 0.05). Though all the groups were effective in improving active ankle ROM, no group was found to be superior to another after treatment CONCLUSION: Adding ES to exercises are associated with low to medium effect sizes (<0.5) in reducing spasticity and improving ankle ROM.
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Affiliation(s)
- G Shankar Ganesh
- Composite Regional Centre for Persons with Disabilities, Lucknow, Uttar Pradesh, India
| | | | - Monalisa Pattnaik
- Swami Vivekanand National Institute of Rehabilitation Training and Research, Cuttack Dt, Odisha, India
| | - Patitapaban Mohanty
- Swami Vivekanand National Institute of Rehabilitation Training and Research, Cuttack Dt, Odisha, India
| | - Chittaranjan Mishra
- Swami Vivekanand National Institute of Rehabilitation Training and Research, Cuttack Dt, Odisha, India
| | - Parminder Kaur
- Ohio State University School of Health and Rehabilitation Sciences, Columbus, OH, USA
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Behringer M, Harmsen JF, Fasse A, Mester J. Effects of Neuromuscular Electrical Stimulation on the Frequency of Skeletal Muscle Cramps: A Prospective Controlled Clinical Trial. Neuromodulation 2017; 21:815-822. [PMID: 29164749 DOI: 10.1111/ner.12728] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 09/14/2017] [Accepted: 10/03/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVES We investigated if neuromuscular electrical stimulation (NMES) of calf muscles prevents spontaneous calf cramps. MATERIALS AND METHODS In 19 individuals affected by more than or equal to one calf cramp per week the gastrocnemius of the predominantly affected leg was stimulated twice a week (intervention leg, IL) over six weeks (3 × 6 stimulation trains at 30 Hz above the individual cramp threshold frequency). The other leg served as control (CL). The participants were advised to record all spontaneous muscle cramps from two weeks before the intervention until two weeks after the last NMES session. RESULTS The number of spontaneous calf cramps in the two weeks after the intervention was 78% lower (2.1 ± 6.8 cramps) in the stimulated (p < 0.001) and 63% lower (2.0 ± 6.9 cramps) in the unstimulated calves (p < 0.001), when compared to the two weeks prior to the intervention (IL: 9.6 ± 12.4 cramps; CL: 5.5 ± 12.7 cramps). Only in the IL, this improvement was accompanied by an increase in the cramp threshold frequency from 15.5 ± 8.5 Hz before the NMES intervention to 21.7 ± 12.4 Hz after the intervention. The severity of the remaining calf cramps tended to be lower in both legs after the intervention. CONCLUSIONS The applied stimulation protocol seems to provide an effective prevention strategy in individuals affected by regular calf cramps.
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Affiliation(s)
- Michael Behringer
- Institute of Sports Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Jan-Frieder Harmsen
- German Research Center for Elite Sports-momentum, German Sport University Cologne, Cologne, Germany
| | | | - Joachim Mester
- German Research Center for Elite Sports-momentum, German Sport University Cologne, Cologne, Germany
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Pazzinatto MF, de Oliveira Silva D, Pappas E, Magalhães FH, de Azevedo FM. Is quadriceps H-reflex excitability a risk factor for patellofemoral pain? Med Hypotheses 2017; 108:124-127. [PMID: 29055385 DOI: 10.1016/j.mehy.2017.08.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 11/18/2022]
Abstract
Patellofemoral pain (PFP) is one of the most common conditions in orthopedic practice while recent evidence has suggested that it may be a predisposing factor to patellofemoral osteoarthritis. In addition to biomechanical alterations associated with the pathomechanisms underlying PFP, the investigation of neurophysiological alterations has provided novel information in the understanding of the pathophysiology of PFP. For instance, women with PFP present lower amplitude of the vastus medialis (VM) H-reflexes compared to pain-free controls, which suggests that the excitability of spinal reflexes might be a promising tool for discriminating woman with PFP in clinical practice. However, the cross-sectional design of the current research does not inform whether the reduced excitability predisposes to or is the consequence of PFP. Therefore, two hypotheses can be raised: (1) the reduction in excitability of the α-motoneurons is a risk factor for PFP; Or, (2) the reduction in H-reflex excitability is a consequence of PFP due to pain. If the former hypothesis is proven correct, it may help in the early identification of individuals with PFP. If the latter, it may help understand the reduced excitability as a consequence of the long-term pain, which may be interfering in the recovery of individuals with PFP in a long-term basis. In addition, exploring such hypotheses may have direct rehabilitative and prevention implications for PFP and its putative progression to knee osteoarthritis.
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Affiliation(s)
- Marcella Ferraz Pazzinatto
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil.
| | - Danilo de Oliveira Silva
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil; La Trobe Sports and Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Bundoora, Victoria, Australia
| | - Evangelos Pappas
- The University of Sydney, Faculty of Health Sciences, Sydney, Australia
| | | | - Fábio Mícolis de Azevedo
- University of São Paulo State, School of Science and Technology, Physical Therapy Department, Presidente Prudente, Brazil
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Tosun A, Türe S, Askin A, Yardimci EU, Demirdal SU, Kurt Incesu T, Tosun O, Kocyigit H, Akhan G, Gelal FM. Effects of low-frequency repetitive transcranial magnetic stimulation and neuromuscular electrical stimulation on upper extremity motor recovery in the early period after stroke: a preliminary study. Top Stroke Rehabil 2017; 24:361-367. [PMID: 28327054 DOI: 10.1080/10749357.2017.1305644] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To assess the efficacy of inhibitory repetitive transcranial magnetic stimulation (rTMS) and neuromuscular electrical stimulation (NMES) on upper extremity motor function in patients with acute/subacute ischemic stroke. METHODS Twenty-five ischemic acute/subacute stroke subjects were enrolled in this randomized controlled trial. Experimental group 1 received low frequency (LF) rTMS to the primary motor cortex of the unaffected side + physical therapy (PT) including activities to improve strength, flexibility, transfers, posture, balance, coordination, and activities of daily living, mainly focusing on upper limb movements; experimental group 2 received the same protocol combined with NMES to hand extensor muscles; and the control group received only PT. Functional magnetic resonance imaging (fMRI) scan was used to evaluate the activation or inhibition of the affected and unaffected primary motor cortex. RESULTS No adverse effect was reported. Most of the clinical outcome scores improved significantly in all groups, however no statistically significant difference was found between groups due to the small sample sizes. The highest percent improvement scores were observed in TMS + NMES group (varying between 48 and 99.3%) and the lowest scores in control group (varying between 13.1 and 28.1%). Hand motor recovery was significant in both experimental groups while it did not change in control group. Some motor cortex excitability changes were also observed in fMRI. CONCLUSION LF-rTMS with or without NMES seems to facilitate the motor recovery in the paretic hand of patients with acute/subacute ischemic stroke. TMS or the combination of TMS + NMES may be a promising additional therapy in upper limb motor training. Further studies with larger numbers of patients are needed to establish their effectiveness in upper limb motor rehabilitation of stroke.
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Affiliation(s)
- Aliye Tosun
- a Department of Physical Medicine and Rehabilitation , Izmir Katip Celebi University , Izmir , Turkey
| | - Sabiha Türe
- b Department of Neurology , Izmir Katip Celebi University , Izmir , Turkey
| | - Ayhan Askin
- a Department of Physical Medicine and Rehabilitation , Izmir Katip Celebi University , Izmir , Turkey
| | | | - Secil Umit Demirdal
- a Department of Physical Medicine and Rehabilitation , Izmir Katip Celebi University , Izmir , Turkey
| | - Tülay Kurt Incesu
- b Department of Neurology , Izmir Katip Celebi University , Izmir , Turkey
| | - Ozgur Tosun
- c Department of Radiology , Izmir Katip Celebi University , Izmir , Turkey
| | - Hikmet Kocyigit
- a Department of Physical Medicine and Rehabilitation , Izmir Katip Celebi University , Izmir , Turkey
| | - Galip Akhan
- b Department of Neurology , Izmir Katip Celebi University , Izmir , Turkey
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de Oliveira Silva D, Magalhães FH, Faria NC, Ferrari D, Pazzinatto MF, Pappas E, de Azevedo FM. Vastus Medialis Hoffmann Reflex Excitability Is Associated With Pain Level, Self-Reported Function, and Chronicity in Women With Patellofemoral Pain. Arch Phys Med Rehabil 2017; 98:114-119. [DOI: 10.1016/j.apmr.2016.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 06/19/2016] [Accepted: 06/20/2016] [Indexed: 01/25/2023]
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Behringer M, Spieth V, Montag JCK, Willwacher S, McCourt ML, Mester J. Cramp Training Induces a Long-Lasting Increase of the Cramp Threshold Frequency in Healthy Subjects. Neuromodulation 2016; 21:809-814. [PMID: 27641444 DOI: 10.1111/ner.12525] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/03/2016] [Accepted: 08/14/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE A low cramp threshold frequency (CTF) is associated with an increased cramp susceptibility. Recent data indicate that the CTF can be substantially increased by a cramp training consisting of electrically induced muscle cramps (EIMCs). This study investigated if four cramp training sessions induce sustained effects on the CTF. METHODS In ten healthy male subjects, EIMCs were induced in the gastrocnemius medialis of one leg (intervention leg, IL) twice a week, while the opposite leg served as control leg (CL). The stimulation protocol consisted of three sets of six bipolar rectangular wave pulsed currents (5 sec on, 10 sec off) at 30 Hz above the individual CTF. RESULTS After four cramp training sessions (2 weeks) the CTF differed (p < 0.001) from pre-values in the IL (pre: 19.2 ± 1.4 Hz post 29.8 ± 8.0 Hz) but not in the CL (pre: 18.2 ± 1.5 Hz post 19.6 ± 2.8 Hz; p > 0.05). Thereafter, the CTF remained elevated in the IL for 22 days (22 days post: 22.2 ± 3.2 Hz; p < 0.05) when compared to pre and was significantly (p < 0.05) higher than that of the CL 5, 10, and 14 days after the intervention. CONCLUSION The applied cramp training induced a long-term CTF increase of 14 days.
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Affiliation(s)
- Michael Behringer
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany.,German Research Center of Elite Sports (momentum), German Sport University Cologne, Cologne, Germany
| | - Volker Spieth
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany
| | - Johannes Caspar Konrad Montag
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany.,German Research Center of Elite Sports (momentum), German Sport University Cologne, Cologne, Germany
| | - Steffen Willwacher
- Institute of Biomechanics and Orthopaedics, German Sport University Cologne, Cologne, Germany
| | - Molly Leigh McCourt
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany
| | - Joachim Mester
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany.,German Research Center of Elite Sports (momentum), German Sport University Cologne, Cologne, Germany
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Kim JY, Chung JS, Jang GU, Park S, Park JW. The effects of non-elastic taping on muscle tone in stroke patients: a pilot study. J Phys Ther Sci 2016; 27:3901-5. [PMID: 26834377 PMCID: PMC4713816 DOI: 10.1589/jpts.27.3901] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/25/2015] [Indexed: 11/24/2022] Open
Abstract
[Purpose] Hemiplegia occurs when posturing with a dominant flexor tone is present in the upper limbs, thus preventing increased abnormal tone. We attempted to improve the side effects of this condition using elbow re-positioning with non-elastic tape; this method is used to modulate abnormal muscle tone in chronic hemiplegic stroke patients. [Subjects and Methods] Fourteen post-stroke patients were included in this study. Non-elastic tape was applied to the elbow joint in a spiral manner. Before and after the tape was applied, the degree of spasticity (hypertonia) was measured in the elbow flexor muscles using the Modified Ashworth Scale (MAS). Global synkinesis (GS) intensity using electromyography (EMG) was measured in the biceps brachii and triceps brachii during voluntary isometric elbow contractions of the contralateral upper limbs. [Results] Application of non-elastic tape at the elbow joint significantly changed the GS intensity, but no significant changes were found when compared with the MAS. [Conclusion] This study demonstrates that non-elastic tape can be used to decrease abnormal elbow flexor tone. The findings may be used to influence the choice of intervention regarding muscle tone and spastic elbow flexion.
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Affiliation(s)
- Ji Young Kim
- Department of Physical Therapy, College of Medical Health, Catholic University of Daegu, Republic of Korea
| | - Jun Sub Chung
- Department of Physical Therapy, College of Medical Health, Catholic University of Daegu, Republic of Korea
| | - Gwon Uk Jang
- Department of Physical Therapy, College of Medical Health, Catholic University of Daegu, Republic of Korea
| | - Seol Park
- Department of Physical Therapy, College of Medical Health, Catholic University of Daegu, Republic of Korea
| | - Ji Won Park
- Department of Physical Therapy, College of Medical Health, Catholic University of Daegu, Republic of Korea
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de Oliveira Silva D, Magalhães FH, Faria NC, Pazzinatto MF, Ferrari D, Pappas E, de Azevedo FM. Lower Amplitude of the Hoffmann Reflex in Women With Patellofemoral Pain: Thinking Beyond Proximal, Local, and Distal Factors. Arch Phys Med Rehabil 2016; 97:1115-20. [PMID: 26763946 DOI: 10.1016/j.apmr.2015.12.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/14/2015] [Accepted: 12/18/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To investigate whether vastus medialis (VM) Hoffmann reflexes (H-reflexes) differ on the basis of the presence or absence of patellofemoral pain (PFP) and to assess the capability of VM H-reflex measurements in accurately discriminating between women with and without PFP. DESIGN Cross-sectional study. SETTING Laboratory of biomechanics and motor control. PARTICIPANTS Women (N=30) aged 18 to 35 years were recruited, consisting of 2 groups: women with PFP (n=15) and asymptomatic controls (n=15). INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Maximum evoked responses were obtained by electrical stimulation applied to the femoral nerve, and peak-to-peak amplitudes of maximal Hoffmann reflex (Hmax) and maximal motor wave (Mmax) ratios were calculated. Independent samples t tests were performed to identify differences between groups, and a receiver operating characteristic curve was constructed to assess the discriminatory capability of VM H-reflex measurements. RESULTS VM Hmax/Mmax ratios were significantly lower in participants with PFP than in pain-free participants (P=.007). In addition, the VM Hmax/Mmax ratios presented large and balanced discriminatory capability values (sensitivity, 73%; specificity, 67%). CONCLUSIONS This study is the first to show that VM H-reflexes are lower in women with PFP than in asymptomatic controls. Therefore, increasing the excitation of the spinal cord in PFP participants may be essential to maintaining the gains acquired during the rehabilitation programs.
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Affiliation(s)
- Danilo de Oliveira Silva
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | | | - Nathálie Clara Faria
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Marcella Ferraz Pazzinatto
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Deisi Ferrari
- Bioengineering Department, School of Engineering, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Evangelos Pappas
- Discipline of Physiotherapy, Faculty of Health Sciences, University of Sydney, Sydney, New South Wales, Australia
| | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.
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Magalhães FH, Elias LA, da Silva CR, de Lima FF, de Toledo DR, Kohn AF. D1 and D2 Inhibitions of the Soleus H-Reflex Are Differentially Modulated during Plantarflexion Force and Position Tasks. PLoS One 2015; 10:e0143862. [PMID: 26599909 PMCID: PMC4658029 DOI: 10.1371/journal.pone.0143862] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 11/10/2015] [Indexed: 01/05/2023] Open
Abstract
Presynaptic inhibition (PSI) has been shown to modulate several neuronal pathways of functional relevance by selectively gating the connections between sensory inputs and spinal motoneurons, thereby regulating the contribution of the stretch reflex circuitry to the ongoing motor activity. In this study, we investigated whether a differential regulation of Ia afferent inflow by PSI may be associated with the performance of two types of plantarflexion sensoriomotor tasks. The subjects (in a seated position) controlled either: 1) the force level exerted by the foot against a rigid restraint (force task, FT); or 2) the angular position of the ankle when sustaining inertial loads (position task, PT) that required the same level of muscle activation observed in FT. Subjects were instructed to maintain their force/position at target levels set at ~10% of maximum isometric voluntary contraction for FT and 90° for PT, while visual feedback of the corresponding force/position signals were provided. Unconditioned H-reflexes (i.e. control reflexes) and H-reflexes conditioned by electrical pulses applied to the common peroneal nerve with conditioning-to-test intervals of 21 ms and 100 ms (corresponding to D1 and D2 inhibitions, respectively) were evoked in a random fashion. A significant main effect for the type of the motor task (FT vs PT) (p = 0.005, η2p = 0.603) indicated that PTs were undertaken with lower levels of Ia PSI converging onto the soleus motoneuron pool. Additionally, a significant interaction between the type of inhibition (D1 vs D2) and the type of motor task (FT vs PT) (p = 0.038, η2p = 0.395) indicated that D1 inhibition was associated with a significant reduction in PSI levels from TF to TP (p = 0.001, η2p = 0.731), whereas no significant difference between the tasks was observed for D2 inhibition (p = 0.078, η2p = 0.305). These results suggest that D1 and D2 inhibitions of the soleus H-reflex are differentially modulated during the performance of plantarflexion FT and PT. The reduced level of ongoing PSI during PT suggests that, in comparison to FT, there is a larger reliance on inputs from muscle spindles primary afferents when the neuromuscular system is required to maintain position-controlled plantarflexion contractions.
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Affiliation(s)
- Fernando Henrique Magalhães
- School of Arts, Sciences and Humanities, Universidade de São Paulo, EACH-USP, São Paulo, SP, Brazil.,Biomedical Engineering Laboratory, Universidade de São Paulo, EPUSP, Avenida Professor Luciano Gualberto, Travessa 3, n.158, São Paulo, SP, Brazil.,Neuroscience Program, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Leonardo Abdala Elias
- Biomedical Engineering Laboratory, Universidade de São Paulo, EPUSP, Avenida Professor Luciano Gualberto, Travessa 3, n.158, São Paulo, SP, Brazil.,Department of Biomedical Engineering, School of Electrical and Computer Engineering, University of Campinas, Campinas, SP, Brazil
| | - Cristiano Rocha da Silva
- Biomedical Engineering Laboratory, Universidade de São Paulo, EPUSP, Avenida Professor Luciano Gualberto, Travessa 3, n.158, São Paulo, SP, Brazil.,Neuroscience Program, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Felipe Fava de Lima
- Biomedical Engineering Laboratory, Universidade de São Paulo, EPUSP, Avenida Professor Luciano Gualberto, Travessa 3, n.158, São Paulo, SP, Brazil
| | - Diana Rezende de Toledo
- Biomedical Engineering Laboratory, Universidade de São Paulo, EPUSP, Avenida Professor Luciano Gualberto, Travessa 3, n.158, São Paulo, SP, Brazil
| | - André Fabio Kohn
- Biomedical Engineering Laboratory, Universidade de São Paulo, EPUSP, Avenida Professor Luciano Gualberto, Travessa 3, n.158, São Paulo, SP, Brazil.,Neuroscience Program, Universidade de São Paulo, São Paulo, SP, Brazil
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14
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Stein C, Fritsch CG, Robinson C, Sbruzzi G, Plentz RDM. Effects of Electrical Stimulation in Spastic Muscles After Stroke. Stroke 2015; 46:2197-205. [DOI: 10.1161/strokeaha.115.009633] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/15/2015] [Indexed: 11/16/2022]
Abstract
Background and Purpose—
Neuromuscular electric stimulation (NMES) has been used to reduce spasticity and improve range of motion in patients with stroke. However, contradictory results have been reported by clinical trials. A systematic review of randomized clinical trials was conducted to assess the effect of treatment with NMES with or without association to another therapy on spastic muscles after stroke compared with placebo or another intervention.
Methods—
We searched the following electronic databases (from inception to February 2015): Medline (PubMed), EMBASE, Cochrane Central Register of Controlled Trials and Physiotherapy Evidence Database (PEDro). Two independent reviewers assessed the eligibility of studies based on predefined inclusion criteria (application of electric stimulation on the lower or upper extremities, regardless of NMES dosage, and comparison with a control group which was not exposed to electric stimulation), excluding studies with <3 days of intervention. The primary outcome extracted was spasticity, assessed by the Modified Ashworth Scale, and the secondary outcome extracted was range of motion, assessed by Goniometer.
Results—
Of the total of 5066 titles, 29 randomized clinical trials were included with 940 subjects. NMES provided reductions in spasticity (−0.30 [95% confidence interval, −0.58 to −0.03], n=14 randomized clinical trials) and increase in range of motion when compared with control group (2.87 [95% confidence interval, 1.18–4.56], n=13 randomized clinical trials) after stroke.
Conclusions—
NMES combined with other intervention modalities can be considered as a treatment option that provides improvements in spasticity and range of motion in patients after stroke.
Clinical Trial Registration Information—
URL:
http://www.crd.york.ac.uk/PROSPERO
. Unique identifier: CRD42014008946.
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Affiliation(s)
- Cinara Stein
- From the Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil (C.S., C.G.F., C.R., R.D.M.P.); Laboratory of Clinical Investigation, Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC), Porto Alegre, RS, Brazil (C.S.); and Physical Therapy Undergraduation, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil (G.S.)
| | - Carolina Gassen Fritsch
- From the Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil (C.S., C.G.F., C.R., R.D.M.P.); Laboratory of Clinical Investigation, Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC), Porto Alegre, RS, Brazil (C.S.); and Physical Therapy Undergraduation, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil (G.S.)
| | - Caroline Robinson
- From the Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil (C.S., C.G.F., C.R., R.D.M.P.); Laboratory of Clinical Investigation, Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC), Porto Alegre, RS, Brazil (C.S.); and Physical Therapy Undergraduation, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil (G.S.)
| | - Graciele Sbruzzi
- From the Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil (C.S., C.G.F., C.R., R.D.M.P.); Laboratory of Clinical Investigation, Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC), Porto Alegre, RS, Brazil (C.S.); and Physical Therapy Undergraduation, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil (G.S.)
| | - Rodrigo Della Méa Plentz
- From the Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil (C.S., C.G.F., C.R., R.D.M.P.); Laboratory of Clinical Investigation, Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC), Porto Alegre, RS, Brazil (C.S.); and Physical Therapy Undergraduation, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil (G.S.)
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15
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Takeuchi N, Izumi SI. Combinations of stroke neurorehabilitation to facilitate motor recovery: perspectives on Hebbian plasticity and homeostatic metaplasticity. Front Hum Neurosci 2015; 9:349. [PMID: 26157374 PMCID: PMC4477170 DOI: 10.3389/fnhum.2015.00349] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 05/31/2015] [Indexed: 12/12/2022] Open
Abstract
Motor recovery after stroke involves developing new neural connections, acquiring new functions, and compensating for impairments. These processes are related to neural plasticity. Various novel stroke rehabilitation techniques based on basic science and clinical studies of neural plasticity have been developed to aid motor recovery. Current research aims to determine whether using combinations of these techniques can synergistically improve motor recovery. When different stroke neurorehabilitation therapies are combined, the timing of each therapeutic program must be considered to enable optimal neural plasticity. Synchronizing stroke rehabilitation with voluntary neural and/or muscle activity can lead to motor recovery by targeting Hebbian plasticity. This reinforces the neural connections between paretic muscles and the residual motor area. Homeostatic metaplasticity, which stabilizes the activity of neurons and neural circuits, can either augment or reduce the synergic effect depending on the timing of combination therapy and types of neurorehabilitation that are used. Moreover, the possibility that the threshold and degree of induced plasticity can be altered after stroke should be noted. This review focuses on the mechanisms underlying combinations of neurorehabilitation approaches and their future clinical applications. We suggest therapeutic approaches for cortical reorganization and maximal functional gain in patients with stroke, based on the processes of Hebbian plasticity and homeostatic metaplasticity. Few of the possible combinations of stroke neurorehabilitation have been tested experimentally; therefore, further studies are required to determine the appropriate combination for motor recovery.
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Affiliation(s)
- Naoyuki Takeuchi
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Medicine Sendai, Japan
| | - Shin-Ichi Izumi
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Medicine Sendai, Japan
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16
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The influence of functional electrical stimulation on hand motor recovery in stroke patients: a review. EXPERIMENTAL & TRANSLATIONAL STROKE MEDICINE 2014; 6:9. [PMID: 25276333 PMCID: PMC4178310 DOI: 10.1186/2040-7378-6-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 07/29/2014] [Indexed: 01/24/2023]
Abstract
Neuromuscular stimulation has been used as one potential rehabilitative treatment option to restore motor function and improve recovery in patients with paresis. Especially stroke patients who often regain only limited hand function would greatly benefit from a therapy that enhances recovery and restores movement. Multiple studies investigated the effect of functional electrical stimulation on hand paresis, the results however are inconsistent. Here we review the current literature on functional electrical stimulation on hand motor recovery in stroke patients. We discuss the impact of different parameters such as stage after stoke, degree of impairment, spasticity and treatment protocols on the functional outcome. Importantly, we outline the results from recent studies investigating the cortical effects elicited by functional electrical stimulation giving insights into the underlying mechanisms responsible for long-term treatment effects. Bringing together the findings from present research it becomes clear that both, treatment outcomes as well as the neurophysiologic mechanisms causing functional recovery, vary depending on patient characteristics. In order to develop unified treatment guidelines it is essential to conduct homogenous studies assessing the impact of different parameters on rehabilitative success.
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17
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Tennant KA. Thinking outside the brain: structural plasticity in the spinal cord promotes recovery from cortical stroke. Exp Neurol 2014; 254:195-9. [PMID: 24518486 DOI: 10.1016/j.expneurol.2014.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/02/2014] [Indexed: 11/29/2022]
Abstract
Neuroanatomically connected regions distal to a cortical stroke can exhibit both degenerative and adaptive changes during recovery. As the locus for afferent somatosensory fibres and efferent motor fibres, the spinal cord is ideally situated to play a critical role in functional recovery. In contrast to the wealth of research into cortical plasticity after stroke, much less focus has previously been placed on the role of subcortical or spinal cord plasticity in recovery of function after cortical stroke. Little is known about the extent and spatiotemporal profile of spinal rewiring, its regulation by neurotrophins or inflammatory cytokines, or its potential as a therapeutic target to improve stroke recovery. This commentary examines the recent findings by Sist et al. (2014) that there is a distinct critical period of heightened structural plasticity, growth factor expression, and inflammatory cytokine production in the spinal cord. They suggest that neuroplasticity is highest during the first two weeks after stroke and tapers off dramatically by the fourth week. Spinal cord plasticity correlates with the severity of cortical injury and temporally matches periods of accelerated spontaneous recovery of skilled reaching function. The potential of treatments that extend or re-open this window of spinal cord plasticity, such as anti-Nogo-A antibodies or chondroitinase ABC, to dramatically improve recovery from cortical stroke in clinical populations is discussed.
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Affiliation(s)
- Kelly A Tennant
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada.
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