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Kong J, Teng C, Liu F, Wang X, Zhou Y, Zong Y, Wan Z, Qin J, Yu B, Mi D, Wang Y. Enhancing regeneration and repair of long-distance peripheral nerve defect injuries with continuous microcurrent electrical nerve stimulation. Front Neurosci 2024; 18:1361590. [PMID: 38406586 PMCID: PMC10885699 DOI: 10.3389/fnins.2024.1361590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/29/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Peripheral nerve injuries, especially those involving long-distance deficits, pose significant challenges in clinical repair. This study explores the potential of continuous microcurrent electrical nerve stimulation (cMENS) as an adjunctive strategy to promote regeneration and repair in such cases. Methods The study initially optimized cMENS parameters and assessed its impact on Schwann cell activity, neurotrophic factor secretion, and the nerve regeneration microenvironment. Subsequently, a rat sciatic nerve defect-bridge repair model was employed to evaluate the reparative effects of cMENS as an adjuvant treatment. Functional recovery was assessed through gait analysis, motor function tests, and nerve conduction assessments. Additionally, nerve regeneration and denervated muscle atrophy were observed through histological examination. Results The study identified a 10-day regimen of 100uA microcurrent stimulation as optimal. Evaluation focused on Schwann cell activity and the microenvironment, revealing the positive impact of cMENS on maintaining denervated Schwann cell proliferation and enhancing neurotrophic factor secretion. In the rat model of sciatic nerve defect-bridge repair, cMENS demonstrated superior effects compared to control groups, promoting motor function recovery, nerve conduction, and sensory and motor neuron regeneration. Histological examinations revealed enhanced maturation of regenerated nerve fibers and reduced denervated muscle atrophy. Discussion While cMENS shows promise as an adjuvant treatment for long-distance nerve defects, future research should explore extended stimulation durations and potential synergies with tissue engineering grafts to improve outcomes. This study contributes comprehensive evidence supporting the efficacy of cMENS in enhancing peripheral nerve regeneration.
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Affiliation(s)
- Junjie Kong
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Cheng Teng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Fenglan Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xuzhaoyu Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Yi Zhou
- Department of Orthopedics, Nantong City Hospital of Traditional Chinese Medicine, Nantong, China
| | - Ying Zong
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Zixin Wan
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Jun Qin
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Bin Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Daguo Mi
- Department of Orthopedics, Nantong City Hospital of Traditional Chinese Medicine, Nantong, China
| | - Yaxian Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Affiliated Hospital and Medical School, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
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Matsui T, Hara K, Iwata M, Hojo S, Shitara N, Endo Y, Fukuoka H, Matsui M, Kawaguchi H. Cervical muscle stiffness and parasympathetic nervous system improvements for treatment-resistant depression. BMC Musculoskelet Disord 2022; 23:907. [PMID: 36217161 PMCID: PMC9552456 DOI: 10.1186/s12891-022-05860-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/30/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Although treatment-resistant depression (TRD) is a major public health problem that increases mortality due to suicides, a considerable percentage of patients do not respond adequately to variable treatments. Patients with TRD sometimes have comorbid cervical stiffness. This observational study aims to examine the association of local modulation of cervical muscles with TRD and to learn the involvement of the parasympathetic nervous system in the underlying mechanism. METHODS A total of 1103 hospitalized patients with TRD who were resistant to outpatient care were enrolled between May 2006 and October 2021. All patients underwent local modulation of the cervical muscles by physical therapy during hospitalization. The presence or absence of TRD and whole-body disorders, such as headache, dazzling, cervical stiffness, and cardiovascular and gastrointestinal disorders, was determined by the patient's subjectivity using the self-rated medical interview sheet at admission and discharge. Pupil light reflex parameters were also measured at admission and discharge using a binocular infrared pupilometer. RESULTS The improvement rate of TRD during hospitalization was 72.1%, and did not differ significantly by sex, age, and hospitalization period. The improvement of TRD showed a strong association with those of cervical stiffness and dazzling, a pupil light reflex disorder (p < 0.001: odds ratios = 12.76 and 6.39, respectively), but not with those of headache or cardiovascular and gastrointestinal disorders (p > 0.05). In the TRD-improved patients, the pupil light reflex parameters representative of the parasympathetic nervous system function ameliorated: pupil diameter decreased, while constriction rate and velocity increased during hospitalization. In contrast, little amelioration of the parameters was seen in the TRD-unimproved patients. CONCLUSIONS Cervical muscle stiffness may be associated with TRD, possibly through dysfunction of the parasympathetic nervous system. TRIAL REGISTRATION ID: UMIN000040590. First registration date: 30/05/2020.
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Affiliation(s)
- Takayoshi Matsui
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan ,Matsui Hospital, Kan-nonji 739, Tokyo, Kagawa 768-0013 Japan
| | - Kazuhiro Hara
- Matsui Hospital, Kan-nonji 739, Tokyo, Kagawa 768-0013 Japan
| | - Makoto Iwata
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Shuntaro Hojo
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Nobuyuki Shitara
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Yuzo Endo
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Hideoki Fukuoka
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Masaki Matsui
- Matsui Hospital, Kan-nonji 739, Tokyo, Kagawa 768-0013 Japan
| | - Hiroshi Kawaguchi
- Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
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Matsui T, Hara K, Iwata M, Hojo S, Shitara N, Endo Y, Fukuoka H, Matsui M, Kawaguchi H. Possible involvement of the autonomic nervous system in cervical muscles of patients with myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS). BMC Musculoskelet Disord 2021; 22:419. [PMID: 33952227 PMCID: PMC8101228 DOI: 10.1186/s12891-021-04293-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 04/23/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Patients with myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS) sometimes present with stiffness of the cervical muscles. To investigate the pathophysiology of ME/CFS, this observational study compared patients with versus without recovery from ME/CFS through local modulation of the cervical muscles. METHODS Over a period of 11 years, a total of 1226 inpatients with ME/CFS who did not respond to outpatient care were enrolled in this study. All patients received daily cervical muscle physical therapy during hospitalization. Self-rated records documenting the presence or absence of ME/CFS, as well as the representative eight symptoms that frequently accompany it at admission and discharge, were compared. Pupil diameter was also measured to examine autonomic nervous system function involvement. RESULTS The recovery rate of ME/CFS after local therapy was 55.5%, and did not differ significantly by sex, age strata, and hospitalization period. The recovery rates of the eight symptoms were variable (36.6-86.9%); however, those of ME/CFS in the symptom subpopulations were similar (52.3-55.8%). The recovery rates of all symptoms showed strong associations with that of ME/CFS (p < 0.001). The pupil diameter was more constricted in the ME/CFS-recovered patients than in the ME/CFS-unrecovered patients in the total population and the subpopulations stratified by sex, age, and hospitalization period. CONCLUSIONS There was a strong association between the recovery of ME/CFS and other related whole-body symptoms. The recovery of ME/CFS may be partly linked to amelioration of the autonomic nervous system in the cervical muscles. TRIAL REGISTRATION UMIN000036634 . Registered 1 May 2019 - Retrospectively registered.
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Affiliation(s)
- Takayoshi Matsui
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
- Matsui Hospital, Kan-nonji 739, Kagawa, Tokyo, 768-0013 Japan
| | - Kazuhiro Hara
- Matsui Hospital, Kan-nonji 739, Kagawa, Tokyo, 768-0013 Japan
| | - Makoto Iwata
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Shuntaro Hojo
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Nobuyuki Shitara
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Yuzo Endo
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Hideoki Fukuoka
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
| | - Masaki Matsui
- Matsui Hospital, Kan-nonji 739, Kagawa, Tokyo, 768-0013 Japan
| | - Hiroshi Kawaguchi
- Orthopaedics and Spine Department, Tokyo Neurological Center, Toranomon 4-1-17, Minato-ku, Tokyo, 105-0001 Japan
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Lu L, Megahed FM, Cavuoto LA. Interventions to Mitigate Fatigue Induced by Physical Work: A Systematic Review of Research Quality and Levels of Evidence for Intervention Efficacy. HUMAN FACTORS 2021; 63:151-191. [PMID: 31596613 DOI: 10.1177/0018720819876141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE We present a literature review on workplace physical fatigue interventions, focusing on evaluating the methodological quality and strength of evidence. BACKGROUND Physical fatigue is a recognized workplace problem, with negative effects on performance and health-related complaints. Although many studies have focused on the mechanisms and consequences of fatigue, few have considered the effectiveness of interventions to mitigate fatigue. METHOD A systematic review of the workplace safety literature for controlled trials of physical fatigue interventions was conducted. Data on intervention type, subject characteristics, targeted tasks and body locations, outcome measures, and study design were extracted. The methodological quality for each study was evaluated using the PEDro scale, and the level of evidence was based on quality, amount, and consistency. RESULTS Forty-five controlled trials were reviewed, examining 18 interventions. We categorized those interventions into individual-focused (N = 28 studies, nine interventions), workplace-focused (N = 12 studies, five interventions), and multiple interventions (N = 5 studies, four interventions). We identified moderate evidence for interventions related to assistive devices and task variation. There was moderate evidence supporting no fatigue attenuation for the garment change category of interventions. The interventions in the remaining categories had limited to minimal evidence of efficacy. The heterogeneity of the included trials precludes the determination of effect size. CONCLUSION This review showed a lack of high levels of evidence for the effectiveness of most physical fatigue interventions. APPLICATION Due to a lack of high levels of evidence for any category of reviewed physical fatigue interventions, further high-quality studies are needed to establish the efficacy of others.
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Affiliation(s)
- Lin Lu
- Auburn University, Alabama, USA
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Liu MN, Yeh HL, Kuan AS, Tsai SJ, Liou YJ, Walsh V, Lau CI. High-Frequency External Muscle Stimulation Reduces Depressive Symptoms in Older Male Veterans: A Pilot Study. J Geriatr Psychiatry Neurol 2021; 34:37-45. [PMID: 32242480 DOI: 10.1177/0891988720915524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Late-life depression (LLD) is a severe public health problem. Given that pharmacological treatments for LLD are limited by their side effects, development of efficient and tolerable nonpharmacological treatment for LLD is urgently required. This study investigated whether high-frequency external muscle stimulation could reduce depressive symptoms in LLD. METHODS Twenty-two older male veterans with major depression were recruited and randomized into a treatment (n = 9) or sham control group (n = 13). The groups received high-frequency external muscle stimulation or sham intervention 3 times per week for 12 weeks. Clinical symptoms and muscle strength were evaluated at baseline and every 2 weeks. RESULTS The 2 groups were homogeneous in age, baseline clinical symptoms, and muscle strength. The treatment group showed significant improvement in depression and anxiety scores and muscle strength (all P < .01), whereas the control group showed no significant change after the 12-week follow-up. Compared to the control group, the treatment group showed significant improvements in depression (Geriatric Depression Scale, P = .009; Hamilton Depression Rating Scale, P = .007) and anxiety scores (HAMA, P = .008) and muscle strength (all P < .001). Changes in depression and anxiety levels were significantly correlated with changes in muscle strength after the study. In the treatment group, we observed a trend of correlation between the reduction in depression and muscle strength gains. CONCLUSION High-frequency external muscle stimulation appears to be an effective treatment for older patients with LLD. Large studies with more tests and/or conducted in different populations are warranted to validate these preliminary findings.
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Affiliation(s)
- Mu-N Liu
- Department of Psychiatry, 46615Taipei Veterans General Hospital, Taipei.,Institute of Brain Science, National Yang-Ming University, Taipei.,Department of Neurology, Memory & Aging Center, University of California, San Francisco, CA, USA
| | - Heng-Liang Yeh
- Health Care Group, Taipei Veterans Home, New-Taipei City
| | - Ai Seon Kuan
- Institute of Public Health, National Yang-Ming University, Taipei.,Division of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei
| | - Shih-Jen Tsai
- Department of Psychiatry, 46615Taipei Veterans General Hospital, Taipei.,School of Medicine, National Yang-Ming University, Taipei
| | - Ying-Jay Liou
- Department of Psychiatry, 46615Taipei Veterans General Hospital, Taipei.,School of Medicine, National Yang-Ming University, Taipei
| | - Vincent Walsh
- Applied Cognitive Neuroscience Group, Institute of Cognitive Neuroscience, 4919University College London, London, United Kingdom
| | - Chi-Ieong Lau
- Applied Cognitive Neuroscience Group, Institute of Cognitive Neuroscience, 4919University College London, London, United Kingdom.,Department of Neurology, 38029Shin Kong Wu Ho-Su Memorial Hospital, Taipei.,Fu-Jen Catholic University, College of Medicine, Taipei.,Institute of Biophotonics and Brain Research Center, National Yang-Ming University, Taipei.,University Hospital, Taipa, Macau
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Effect of intensive inpatient physical therapy on whole-body indefinite symptoms in patients with whiplash-associated disorders. BMC Musculoskelet Disord 2019; 20:251. [PMID: 31164107 PMCID: PMC6549292 DOI: 10.1186/s12891-019-2621-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 05/10/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND A considerable number of patients with whiplash-associated disorders (WAD) report variable and indefinite symptoms involving the whole body, despite there being no evidence of direct injuries to organs other than the neck. However, little is known about their management or underlying mechanism. This study examined the effect of intensive physical therapy at the cervical muscles in patients with WAD reporting whole-body indefinite symptoms. METHODS A total of 194 hospitalized patients with WAD who were resistant to outpatient care by reporting whole-body indefinite symptoms between May 2006 and May 2017 were enrolled in this observational study. All patients underwent daily physical therapies by low-frequency electric stimulation therapy and far-infrared irradiation to the cervical muscles during hospitalization. Self-rated records in the medical interview sheets on 22 representative whole-body symptoms at admission and discharge were compared. RESULTS The number of symptoms was markedly decreased by the physical therapies during hospitalization. Almost all symptoms showed recovery rates of more than 80% at discharge as compared to those at admission. Although the percentage of patients reporting at least four of the 22 representative indefinite symptoms was 99.0% at admission, it decreased to 7.7% at discharge. Sixteen percent of patients recovered completely without any residual symptoms. The mean number of symptoms significantly decreased from 13.1 at admission to 2.0 at discharge. Notably, symptoms other than those in the neck or shoulder recovered to a greater extent than those in the neck or shoulder. CONCLUSIONS This study, for the first time, examined the management of whole-body indefinite symptoms in patients with WAD. The intensive physical therapy markedly improved the symptoms, suggesting the involvement of cervical muscles in the pathogenesis. TRIAL REGISTRATION UMIN000035435 (Retrospectively registered on Jan 3, 2019).
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Ramos LAV, Callegari B, França FJR, Magalhães MO, Burke TN, Carvalho e Silva APDMC, Almeida GPL, Comachio J, Marques AP. Comparison Between Transcutaneous Electrical Nerve Stimulation and Stabilization Exercises in Fatigue and Transversus Abdominis Activation in Patients With Lumbar Disk Herniation: A Randomized Study. J Manipulative Physiol Ther 2018; 41:323-331. [DOI: 10.1016/j.jmpt.2017.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 09/10/2017] [Accepted: 10/19/2017] [Indexed: 10/17/2022]
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Wang JS. Therapeutic effects of massage and electrotherapy on muscle tone, stiffness and muscle contraction following gastrocnemius muscle fatigue. J Phys Ther Sci 2017; 29:144-147. [PMID: 28210061 PMCID: PMC5300827 DOI: 10.1589/jpts.29.144] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 10/18/2016] [Indexed: 12/14/2022] Open
Abstract
[Purpose] This study aimed to examine the effects of a combined intervention consisting
of massage therapy and transcutaneous electrical nerve stimulation on gastrocnemius muscle
fatigue, assessing whether the intervention improved muscle tone, stiffness, and muscle
contraction. [Subjects and Methods] The subjects were 20 healthy males in their 20s who
were equally divided into a transcutaneous electrical nerve stimulation group and a
combined therapy group that received a combination of massage therapy and transcutaneous
electrical nerve stimulation. Muscle fatigue was triggered on the gastrocnemius muscle,
and the effects of intervention method on muscle tone, stiffness, and muscle contraction
were examined over time. [Results] Lateral and medial gastrocnemius muscle tone and
stiffness significantly increased and gastrocnemius muscle contraction significantly
decreased in each group immediately after fatigue was triggered on the gastrocnemius
muscle. There was no difference in the effects of the two intervention methods over time.
[Conclusion] This study verified that a combined therapy of massage therapy and
transcutaneous electrical nerve stimulation was able to be used effectively in improving
muscle tone, stiffness, muscle contraction, thereby reducing gastrocnemius muscle
fatigue.
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Affiliation(s)
- Joong-San Wang
- Department of Physical Therapy, Howon University, Republic of Korea
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Montenegro EJN, Guimarães de Alencar G, Rocha de Siqueira G, Guerino MR, Maia JN, Araújo de Oliveira D. Effect of low frequency transcutaneous electrical nerve stimulation of TE5 (waiguan) and PC6 (neiguan) acupoints on cold-induced pain. J Phys Ther Sci 2016; 28:76-81. [PMID: 26957732 PMCID: PMC4755978 DOI: 10.1589/jpts.28.76] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/09/2015] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study assesse the effect of low frequency transcutaneous electrical nerve stimulation (TENS) of theTE5 (waiguan) and PC6 (neiguan) acupoints on cold-induced pain. [Subjects and Methods] Forty-eight subjects were divided by convenience into three groups: TENS with electrodes of 1 cm(2) area, TENS with electrodes of area 15 cm(2) and a placebo group. The study consisted of three phases: cold-induced pain without electroanalgesia, cold-induced pain with electroanalgesia or placebo, and cold-induced pain post-electroanalgesia or placebo. [Results] Acupuncture like TENS increased the pain threshold latency during treatment (45.7 ± 11.7s) compared to pre-treatment (30.9 ± 8.9s) in the TENS group with 1 cm(2) electrodes. In the TENS group with 15 cm(2) electrodes, the pain threshold latency increased at post-treatment (36.2 ± 12.9s) compared to pre-treatment (25.5 ± 7.4s). The placebo group showed no significant changes. The group with 1 cm(2) electrodes showed a significantly higher pain threshold latency (45.7 ± 11.7s) than the other two groups. At post-treatment, the pain threshold latencies of both the 1 cm(2) (39.4 ± 11.5s) and 15 cm(2) (36.2 ± 12.9s) TENS group were higher than that of the placebo group (22.4 ± 7.4s). [Conclusion] Acupuncture like TENS applied to PC6 and TE5 acupoints increased the pain threshold latency. The pain intensity was reduced by TENS with an electrode area of 1 cm(2).
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Affiliation(s)
| | | | | | | | - Juliana Netto Maia
- Department of Physical Therapy, UFPE-Federal University of Pernambuco, Brazil
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Ryu JH, Paik IY, Woo JH, Shin KO, Cho SY, Roh HT. Impact of different running distances on muscle and lymphocyte DNA damage in amateur marathon runners. J Phys Ther Sci 2016; 28:450-5. [PMID: 27065529 PMCID: PMC4792989 DOI: 10.1589/jpts.28.450] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/31/2015] [Indexed: 12/19/2022] Open
Abstract
[Purpose] The aim of this study was to investigate the impact of different marathon
running distances (10 km, 21 km, and 42.195 km) on muscle and lymphocyte DNA damage in
amateur marathon runners. [Subjects and Methods] Thirty male amateur runners were randomly
assigned to 10 km, 21 km, and 42 km groups, with 10 subjects in each group. Blood samples
were collected before and after the races and on the 3rd day of recovery to examine levels
of muscle damage (creatine kinase and lactate dehydrogenase) and lymphocyte DNA damage
(DNA in the tail, tail length, and tail moment). [Results] Serum creatine kinase, serum
lactate dehydrogenase, and tail moment were significantly higher after the races compared
with before the races in all groups. In addition, the 42 km group showed significantly
higher levels of creatine kinase, lactate dehydrogenase, and tail moment than the 10 km
and 21 km groups after the races. [Conclusion] Strenuous endurance exercise can cause
muscle and lymphocyte DNA damage, and the extent of such damage can increase as running
distance increases.
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Affiliation(s)
- Jae Hoon Ryu
- Exercise Physiology Laboratory, Department of Physical Education, Yonsei University, Republic of Korea
| | - Il Young Paik
- Exercise Physiology Laboratory, Department of Physical Education, Yonsei University, Republic of Korea
| | - Jin Hee Woo
- Department of Physical Education, College of Arts and Physical Education, Dong-A University: 37 Nakdong-daero 550 Beon-gil, Hadan-dong, Busan 604-714, Republic of Korea
| | - Ki Ok Shin
- Department of Physical Education, College of Arts and Physical Education, Dong-A University: 37 Nakdong-daero 550 Beon-gil, Hadan-dong, Busan 604-714, Republic of Korea
| | - Su Youn Cho
- Exercise Physiology Laboratory, Department of Physical Education, Yonsei University, Republic of Korea
| | - Hee Tae Roh
- Department of Physical Education, College of Arts and Physical Education, Dong-A University: 37 Nakdong-daero 550 Beon-gil, Hadan-dong, Busan 604-714, Republic of Korea
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Kim SY, Kim JH, Jung GS, Baek SO, Jones R, Ahn SH. The effects of transcutaneous neuromuscular electrical stimulation on the activation of deep lumbar stabilizing muscles of patients with lumbar degenerative kyphosis. J Phys Ther Sci 2016; 28:399-406. [PMID: 27064323 PMCID: PMC4792980 DOI: 10.1589/jpts.28.399] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/30/2015] [Indexed: 11/26/2022] Open
Abstract
[Purpose] To investigate the effectiveness of three different neuromuscular electrical
stimulation (NMES) protocols for the deep lumbar stabilizing muscles of patients with
lumbar degenerative kyphosis (LDK). [Subjects and Methods] Twenty patients with LDK were
recruited. Three stimulation protocols were investigated: stimulation of the abdominal
muscles (protocol A); stimulation of the lumbar muscles (protocol B); and simultaneous
stimulation of the abdominal and lumbar muscles (protocol A+B). Images of the obliquus
externus (OE), obliquus internus (OI), transversus abdominis (TrA), and lumbar multifidus
(LM) muscles were captured by real-time ultrasound imaging (RUSI). [Results] The thickness
of LM was significantly greater during stimulation than at rest for all three protocols.
Thicknesses of the abdominal muscles (TrA, OI, and OE) were significantly greater during
stimulation than at rest for protocols A and A+B. Thickness increases in LM were
significantly greater during protocols B and A+B, but not during protocol A. Thickness
increases in the abdominal muscles (TrA, OI, and OE) were significantly greater during
protocols A and A+B, but not during protocol B. [Conclusion] NMES can significantly
activate the deep lumbar stabilizing muscles of patients with LDK. Protocol A+B of NMES is
recommended to aid postural correction and low back pain (LBP) in patients with LDK.
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Affiliation(s)
- So Yeon Kim
- Department of Biomedical Engineering, College of Medicine, Yeungnam University, Republic of Korea
| | - Jin Hyun Kim
- Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Republic of Korea
| | - Gil Su Jung
- Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Republic of Korea
| | - Seung Ok Baek
- Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Republic of Korea
| | - Rodney Jones
- Department of Anesthesia, University of Kansas School of Medicine, USA
| | - Sang Ho Ahn
- Department of Rehabilitation Medicine and Spine Center, Yeungnam University College of Medicine, Republic of Korea
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