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Salivary testosterone and cortisol responses following four resistance training protocols in professional rugby players
(National Winter Sports Research Centre)
2008 (English)In: Journal of Strength and Conditioning Research, ISSN 1064-8011, Vol. 22, no 2, 426-432 p.Article in journal (Refereed) Published
Abstract [en]

The acute response of free salivary testosterone (T) and cortisol (C) concentrations to four resistance exercise (RE) protocols in 23 elite men rugby players was investigated.

We hypothesized that hormonal responses would differ among individuals after four distinct RE protocols: four sets of 10 repetitions (reps) at 70% of 1 repetition maximum (1RM) with 2 minutes' rest between sets (4 × 10-70%); three sets of five reps at 85% 1RM with 3 minutes' rest (3 × 5-85%); five sets of 15 reps at 55% 1RM with 1 minute's rest (5 × 15-55%); and three sets of five reps at 40% 1RM with 3 minutes' rest (3 × 5-40%).

Each athlete completed each of the four RE protocols in a random order on separate days. T and C concentrations were measured before exercise (PRE), immediately after exercise (POST), and 30 minutes post exercise (30 POST). Each protocol consisted of four exercises: bench press, leg press, seated row, and squats.

Pooled T data did not change as a result of RE, whereas C declined significantly.

Individual athletes differed in their T response to each of the protocols, a difference that was masked when examining the pooled group data. When individual data were retrospectively tabulated according to the protocol in which each athlete showed the highest T response, a significant protocol-dependent T increase for all individuals was revealed.Therefore, RE induced significant individual, protocol-dependent hormonal changes lasting up to 30 minutes after exercise.

These individual responses may have important ramifications for modulating adaptation to RE and could explain the variability often observed in studies of hormonal response to RE.

Place, publisher, year, edition, pages
2008. Vol. 22, no 2, 426-432 p.
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-16233OAI: oai:DiVA.org:miun-16233DiVA: diva2:527262
Available from: 2012-05-18 Created: 2012-05-18 Last updated: 2012-07-26Bibliographically approved

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  • apa
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  • de-DE
  • en-GB
  • en-US
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  • nn-NB
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  • Other locale
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