| Significant strength gains observed in rugby players after specific resistance exercise protocols based on individual salivary testosterone responses. | |
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MedLine Citation:
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PMID: 18550956 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Our previous work has demonstrated that professional athletes show protocol-dependent variability in salivary testosterone (T) responses to resistance exercise (RE). The current study examines the consistency and functional outcomes of prescribing a RE regimen based on T response. We hypothesized that prescribing an individual-specific RE protocol based on T response would enhance weight training gains. Sixteen amateur rugby players [(mean +/- SD) age: 20 +/- 2 years; height: 181.5 +/- 8.2 cm; weight: 94.2 +/- 11.1 kg] were characterized by their maximal (Tmax) and minimal (Tmin) T response to four RE protocols: four sets of 10 repetitions (reps) at 70% of one repetition maximum (1RM) with 2 minutes' rest between sets (4 x10-70%); three sets of five reps at 85% 1RM with 3 minutes' rest (3 x 5-85%); five sets of 15 reps at 55% of 1RM with 1 minute's rest (5 x 15-55%); and three sets of 5 reps at 40% 1RM with 3 minutes' rest (3 x 5-40%). Eight athletes then performed a 3-week training block performing only their Tmax protocol. The remaining eight only performed Tmin. After 3 weeks, the athletes were retested on the RE protocols and then crossed over and performed the alternate 3-week training block. All 16 athletes showed significant increases in estimated bench and leg press 1RM strength and bodyweight while performing Tmax. When Tmin was performed, 75% of athletes showed either no change or a significant decline in 1RM performance. Consistent protocol-responses over the experimental period were seen for both the Tmax and Tmin protocols in 12 of 16 athletes. Thus, a relationship between an individual's biologically available T response to RE and enhanced functional gains is reported. |
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Authors:
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C Martyn Beaven; Christian J Cook; Nicholas D Gill |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of strength and conditioning research / National Strength & Conditioning Association Volume: 22 ISSN: 1533-4287 ISO Abbreviation: J Strength Cond Res Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-06-13 Completed Date: 2008-09-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9415084 Medline TA: J Strength Cond Res Country: United States |
Other Details:
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Languages: eng Pagination: 419-25 Citation Subset: IM |
Affiliation:
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School of Sport and Exercise Science, Waikato Institute of Technology, The Horticulture and Food Research Institute of New Zealand Ltd., Hamilton, New Zealand. mbeaven@hortresearch.co.nz |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Football / physiology* Humans Male Muscle Strength / physiology* Physical Education and Training / methods* Saliva / chemistry* Testosterone / analysis* |
| Chemical | |
Reg. No./Substance:
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58-22-0/Testosterone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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