Neuromuscular, physiological and endocrine responses to a maximal speed training session in elite games players

Michael Johnston, Christian J. Cook, Blair T Crewther, David Drake, Liam P Kilduff

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    25 Citations (Scopus)
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    Abstract

    The aim of this study was to determine the acute neuromuscular, biochemical and endocrine responses to a maximal speed training (MST) session. Eighteen male rugby players completed the protocol, which involved performing six maximal effort repetitions of 50 m running sprints with 5 minutes recovery between each sprint. Testosterone (T), cortisol (C), creatine kinase (CK), lactate (La), perceived muscle soreness (MS) and counter movement jump were collected immediately pre (PRE), immediately post (IP), 2 hours post (2P) and 24 hours post (24P) the sprint session. A bimodal recovery pattern was observed from the jump parameters with several declining significantly (p ≤ 0.05) IP, recovering 2P and suffering a secondary decline 24P. CK and perceived MS were elevated IP and continued to rise throughout the protocol, while La was only elevated IP. T and C were unaffected IP but showed significant declines 2P. These data indicate that MST results in a bimodal recovery pattern of neuromuscular function with changes most likely being related to metabolic and biochemical responses
    Original languageEnglish
    Pages (from-to)550-556
    Number of pages7
    JournalEuropean Journal of Sport Science
    Volume15
    Issue number6
    DOIs
    Publication statusPublished - 18 Aug 2015

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