scholarly journals Effects of Various Physical Interventions on Reducing Neuromuscular Fatigue Assessed by Electromyography: A Systematic Review and Meta-Analysis

Author(s):  
Xiao Hou ◽  
Jingmin Liu ◽  
Kaixiang Weng ◽  
Lisa Griffin ◽  
Laura A. Rice ◽  
...  

Introduction: Various interventions have been applied to improve recovery from muscle fatigue based on evidence from subjective outcomes, such as perceived fatigue and soreness, which may partly contribute to conflicting results of reducing muscle fatigue. There is a need to assess the effectiveness of various intervention on reducing neuromuscular fatigue assessed by a quantitative outcome, such as electromyography (EMG). The objective of this review and meta-analysis was to evaluate the effectiveness of different interventions and intervention timing for reducing fatigue rates during exercise.Methods: The literature was searched from the earliest record to March 2021. Eighteen studies with a total of 87 data points involving 281 participants and seven types of interventions [i.e., active recovery (AR), compression, cooling, electrical stimulation (ES), light-emitting diode therapy (LEDT), massage, and stretching] were included in this meta-analysis.Results: The results showed that compression (SMD = 0.28; 95% CI = −0.00 to 0.56; p = 0.05; I2 = 58%) and LEDT (SMD = 0.49; 95% CI = 0.11 to 0.88; p = 0.01; I2 = 52%) have a significant recovery effect on reducing muscle fatigue. Additionally, compression, AR, and cooling have a significant effect on reducing muscle fatigue when conducted during exercise, whereas a non-effective trend when applied after exercise.Discussion: This meta-analysis suggests that compression and LEDT have a significant effect on reducing muscle fatigue. The results also suggest that there is a significant effect or an effective trend on reducing muscle fatigue when compression, AR, cooling, and ES are applied during exercise, but not after exercise.

Author(s):  
Sadeeya Khan ◽  
Aamir Hussain Dar ◽  
Rafeeya Shams ◽  
Mohsin Bashir Aga ◽  
Mohammad Wasim Siddiqui ◽  
...  

2013 ◽  
Vol 30 (2) ◽  
pp. 925-939 ◽  
Author(s):  
Ernesto Cesar Pinto Leal-Junior ◽  
Adriane Aver Vanin ◽  
Eduardo Foschini Miranda ◽  
Paulo de Tarso Camillo de Carvalho ◽  
Simone Dal Corso ◽  
...  

Author(s):  
Margherita Napolitani ◽  
Daiana Bezzini ◽  
Fulvio Moirano ◽  
Corrado Bedogni ◽  
Gabriele Messina

The aim of this systematic review was to investigate the effectiveness of various disinfection methods available for stethoscopes. In March 2019, we performed a search in PubMed and Scopus using the search terms: “reducing stethoscopes contamination” and “disinfection stethoscopes”; the Mesh terms used in PubMed were “Decontamination/methods” or “Disinfection/methods” and “Stethoscopes/microbiology”. Selection criteria were: English language; at least one disinfection method tested. A total of 253 publications were screened. After title, abstract, and full-text analysis, 17 papers were included in the systematic review. Ethanol at 90%, Ethanol-Based Hands Sanitizer (EBHS), triclosan, chlorhexidine, isopropyl alcohol, 66% ethyl alcohol, sodium hypochlorite, and benzalkonium chloride have been proven to lower the presence of bacteria on stethoscopes’ surfaces. In addition, alcohol wipes show effective results. A wearable device emitting ultraviolet C by Light-Emitting Diode (LED) resulted efficacious against common microorganisms involved in Healthcare Associated Infections. The cover impregnated with silver ions seemed to be associated with significantly higher colony counts. Instead, copper stethoscopes surface reduced bacterial load. The disinfection of stethoscopes appears to be essential. There are many valid methods available; the choice depends on various factors, such as the cost, availability, and practicality.


2021 ◽  
Vol 4 (6) ◽  
pp. 26142-26152
Author(s):  
Eduardo Cândido da Silva ◽  
Ulrich Vasconcelos

Light energy is known to be used to combat microbial growth. Photodynamic antimicrobial chemotherapy (PACT) has the potential to use different naturally-occurring compounds, such as photosensitizers. Curcumin is an example of a molecule of interest in different areas under different optics. This systematic review surveys the aims and scope of research on curcumin-mediated PACT published between January 2011 and December 2020. The search was carried out in MEDLINE, PubMed, EMBASE and Periódicos CAPES databases employing the keywords “Photodynamic antimicrobial chemotherapy”, “photosensitizer”, “curcumin” and the descriptor “Light-Emitting Diode”. It was observed that in the last decade little material meeting these criteria was published. Brazilian institutions concentrated most of their studies on cytotoxic activity. The most recent work, however, focused on antibiofilm activity. Gram-positive bacteria are more sensitive to curcumin-mediated PACT over a short wavelength range. Different concentrations and exposure time of the photosensitizer were evaluated, but the amount of information is still insufficient to establish the best treatment condition as the number of tested pathogens is still poor.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Dandan Yang ◽  
Xiaoying Wu ◽  
Wensheng Hou ◽  
Xiaolin Zheng ◽  
Jun Zheng ◽  
...  

This paper aims to investigate the effect of light emitting diode therapy (LEDT) on exercise-induced hand muscle fatigue by measuring the surface electromyography (sEMG) of flexor digitorum superficialis. Ten healthy volunteers were randomly placed in the equal sized LEDT group and control group. All subjects performed a sustained fatiguing isometric contraction with the combination of four fingertips except thumb at 30% of maximal voluntary contraction (MVC) until exhaustion. The active LEDT or an identical passive rest therapy was then applied to flexor digitorum superficialis. Each subject was required to perform a re-fatigue task immediately after therapy which was the same as the pre-fatigue task. Average rectified value (ARV) and fractal dimension (FD) of sEMG were calculated. ARV and FD were significantly different between active LEDT and passive rest groups at 20%–50%, 70%–80%, and 100% of normalized contraction time (P<0.05). Compared to passive rest, active LEDT induced significantly smaller increase in ARV values and decrease in FD values, which shows that LEDT is effective on the recovery of muscle fatigue. Our preliminary results also suggest that ARV and FD are potential replacements of biochemical markers to assess the effects of LEDT on muscle fatigue.


2021 ◽  
Author(s):  
Seunghyeok Yeom ◽  
Hyungwoo Lee ◽  
Kyoungkyu Jeon

Abstract Tensiomyography (TMG) has advantage in measuring fatigue. However, no studies have used a meta-analysis approach to analyze the trend of changes in TMG variables for acute muscle fatigue induced by an acute exercise. This study is the first systematic review and meta-analysis to establish criteria for measuring acute fatigue using TMG by quantifying trend of changes in TMG variables. Searches were conducted in Web of Science and Pubmed from December 6, 2020 to January 7, 2021. 16 studies were included that they used in TMG for measuring acute muscle fatigue that was caused by acute exercises in rectus femoris or biceps femoris. The meta-analysis results indicated that in the biceps femoris, showed a significant (p < .05) decrease in all TMG variables of the elite athletes. Also, in the overall effects of maximum displacement and mean velocity until 90% Dm (Vc90) showed significant (p < .05) decreasing trend. In the rectus femoris, showed a significant (p < .05) decreasing trend was found for maximum displacement (Dm) in the average person, while contraction time (Tc) showed a decreasing trend in elite athletes and overall. In conclusion, acute muscle fatigue was induced decreased Dm, Tc, Vc90 in the TMG measurement after an acute exercise. These results TMG could be used as a muscle fatigue indicator and help develop a more proper protocol for testing the response of body to muscle fatigue.


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