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Physical Preparation and Competition Workloads and Fatigue Responses of Elite Junior Cricket Players.
MedLine Citation:
PMID:  23348049     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: We investigated key fatigue and workload variables of cricket fast bowlers and non-fast bowlers during a 7-week physical preparation and 10-day intensified competition period. METHODS: Twenty-six elite junior cricketers (mean ± SD age, 17.7 ± 1.1 yr) were classified as fast bowlers (n=9) or non-fast bowlers (n=17). Individual workloads were measured via global positioning system technology and neuromuscular function (countermovement jump [relative power and flight time]), endocrine (salivary testosterone and cortisol concentrations) and perceptual well-being (soreness, mood, stress, sleep quality, and fatigue) markers were recorded. RESULTS: Fast bowlers performed greater competition total distance [median (interquartile range) 7049 (3962) m vs 5062 (3694) m], including greater distances at low and high speeds, more accelerations [40 (32) vs 19 (21)], and higher player load [912 (481) arbitrary units vs 697 (424) arbitrary units] than non-fast bowlers. (Mean ± 90% confidence intervals, % likelihood) cortisol concentrations were higher in the physical preparation (d = -0.88 ± 0.39, 100%) and competition phases (d = -0.39 ± 0.30, 85%), and testosterone concentrations lower (d = 0.56 ± 0.29, 98%) in the competition phase in fast bowlers. Perceptual well-being was poorer in non-fast bowlers during competition only (d = 0.36 ± 0.22, 88%). Differences in neuromuscular function between groups were unclear during physical preparation and competition. CONCLUSIONS: These findings demonstrate differences in the physical demands of cricket fast bowlers and non-fast bowlers, and suggest that these external workloads impact differentially on the neuromuscular, endocrine and perceptual fatigue responses of these players.
Authors:
Dean J McNamara; Tim J Gabbett; Geraldine Naughton; Patrick Farhart; Paul Chapman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  International journal of sports physiology and performance     Volume:  -     ISSN:  1555-0265     ISO Abbreviation:  Int J Sports Physiol Perform     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101276430     Medline TA:  Int J Sports Physiol Perform     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
School of Exercise Science, Australian Catholic University, Strathfield, New South Wales, Australia.
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