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Design: A double-blinded, randomized, within-subjects crossover trial. Participants: Nine athletes underwent five days of MENS (20 min/day) or placebo during and after three consecutive training days. Main outcomes included strength, soreness, flexibility, jump recovery, and tensiomyography-based contractile properties. Results showed accelerated recovery of MVC and eccentric force, while flexibility and jump height were not significantly improved.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/effects-of-microcurrent-electrical-neuromuscular-stimulation-on-recovery-of-muscle-performance-after-high-intensity-sprint-and-resistance-combined-training-sessions/440334/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/effects-of-microcurrent-electrical-neuromuscular-stimulation-on-recovery-of-muscle-performance-after-high-intensity-sprint-and-resistance-combined-training-sessions/440334.png","ImageObject",300,407,{"name":92,"@type":93},"Mafia 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days.",{"name":119,"@type":110,"acceptedAnswer":120},"Which recovery outcomes improved after MENS versus placebo?",{"text":121,"@type":113},"MENS significantly accelerated recovery of maximum voluntary contraction (MVC) force and Nordic hamstring (eccentric) force, improved muscle contraction velocity, and reduced muscle soreness compared with placebo.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},440334,1791300901,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":46,"preview_page_count":4},962090760730,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Journal of Exercise Science & Fitness 24 (2026) 200433  \nContents lists available at ScienceDirect  \nJournal of Exercise Science & Fitness  \njournal [homepage:](homepage: www.elsevier.com/locate/jesf)[ www.elsevier.com/locate/jesf](homepage: www.elsevier.com/locate/jesf)  \n| Effects of microcurrent electrical neuromuscular stimulation on recovery of   muscle performance after high-intensity sprint and resistance combined training sessions\u003Cbr>Yosuke Hiroshige a,b,* , Ryusei Yamaguchi c, Tomoki Ebatod, Ryosuke Kunitomod,\u003Cbr>Ryosuke Kajitanid, Naohiro Shinadad, Hajime Katoe , Masanobu Wada f,g\u003Cbr>a Institute of Health and Sports Science, University of Tsukuba (JPN), Japan b Graduate School of Integrated Arts and Sciences, Hiroshima University (JPN), Japan c Graduate School of Sport Sciences, Waseda University (JPN), Japan\u003Cbr>d Faculty of Physical Education, International Pacific University (JPN), Japan e Faculty of Medical Technology, Teikyo University (JPN), Japan\u003Cbr>f Graduate School of Humanities and Social Sciences, Hiroshima University (JPN), Japan g Faculty of Human Health Science, Hiroshima Bunka Gakuen University (JPN), Japan |  |  |\n| --- | --- | --- |\n| A R T I C L E I N F O |  | A B S T R A C T |\n| Keywords:\u003Cbr>Eccentric contraction\u003Cbr>Muscle fatigue\u003Cbr>Delayed onset of muscle soreness Athletic performance |  | Objective: This study examined the effects of microcurrent electrical neuromuscular stimulation (MENS) on recovery of hamstring muscle function after high-intensity sprint and resistance training in male collegiate sprinters.\u003Cbr>Design: A double-blinded, randomized, within-subjects crossover trial.\u003Cbr>Setting: A university research laboratory.\u003Cbr>Participants: Nine athletes underwent a crossover trial, receiving either MENS (for 20 min per day) or placebo treatment for five days during and after three consecutive days of training.\u003Cbr>Main outcome measures: Maximum voluntary contraction (MVC) force of hamstring, eccentric force using Nordic hamstring (NH force), jump ability (counter movement jump), muscle soreness using a visual analog scale, muscle flexibility, and muscle contractile properties using tensiomyography, were assessed before training and immediately, 1 day, and 2 days after training.\u003Cbr>Results: MENS significantly accelerated recovery of MVC and NH force, muscle contraction velocity, and reduced muscle soreness compared to the placebo (P \u003C 0.05). However, no significant effect was observed on muscle flexibility and jump height recovery.\u003Cbr>Conclusions: MENS may be a practical and effective passive recovery strategy to promote performance recovery insprinters following high-intensity training. The study is the first investigation to evaluate MENS in training context and supports its potential to mitigate overreaching effects and reduce injury risk. |\n\n1. Introduction  \nAthletes striving to enhance their performance frequently engage in high-intensity training, especially for sprint-type events.1 Eccentric (ECC) contraction is a contraction in which skeletal muscles are stretched while contracting. Most training regimens involve both concentric (CON) and ECC phases. For example, the biceps femoris muscle is stretched during the swing phase of running and then shortened.2 ECC contractions require less motor unit activation and consume  \nless energy at the same level of force exerted, compared to CON contractions.3 Additionally, several studies have shown that ECC exercise stimulates an activation of genes responsible for muscle hypertrophy more than CON exercise does.4,5 These findings suggest that ECC exercise may be a more efficient training for improving muscle strength and explosive power.  \nOn the other hand, vigorous ECC exercise often causes muscle damage that is characterized by muscle proteolysis, increased membrane permeability, stiffness, inflammation, and delayed-onset muscle  \n* Corresponding author. Researcher in Institute of Health and Sports Science, University of Tsukuba, 1-1-1 Tennod","cbCailcNxoZXLmbw","https://ap.wps.com/l/cbCailcNxoZXLmbw","pdf",3625403,"English","# Introduction\n# Study objective, design, and methods\n# Participants and training protocol\n# Outcome measures\n# Results\n# Conclusions","[{\"question\":\"What was the main objective of the study?\",\"answer\":\"To evaluate whether microcurrent electrical neuromuscular stimulation (MENS) accelerates hamstring muscle function recovery after high-intensity sprint and resistance combined training in male collegiate sprinters.\"},{\"question\":\"How was MENS administered and compared with a placebo?\",\"answer\":\"Nine athletes completed a double-blinded, randomized, within-subjects crossover trial where they received either MENS for 20 minutes per day or placebo for five days during and after three consecutive training days.\"},{\"question\":\"Which recovery outcomes improved after MENS versus placebo?\",\"answer\":\"MENS significantly accelerated recovery of maximum voluntary contraction (MVC) force and Nordic hamstring (eccentric) force, improved muscle contraction velocity, and reduced muscle soreness compared with placebo.\"}]","Effects of microcurrent electrical neuromuscular stimulation on recovery of muscle performance after high-intensity sprint and resistance combined training sessions | PDF",1790691853]