id:"swepub:oai:DiVA.org:miun-22039"
Search: id:"swepub:oai:DiVA.org:miun-22039" > Morning based stren...
- 1 of 1
- Previous record
- Next record
- To hitlist
Morning based strength training improves afternoon physical performance in rugby union players
-
- Cook, C. J. (author)
- UK Sport, London, United Kingdom
-
- Kilduff, L. P. (author)
- Applied Sports Technology Exercise and Medicine Research Centre (A-STEM), Health and Sport Portfolio, College of Engineering, Swansea University, Swansea, United Kingdom
-
- Crewther, B. T. (author)
- Hamlyn Centre, Imperial College, London, United Kingdom
- show more...
- show less...
- (creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
- In: Journal of Science and Medicine in Sport. - : Elsevier BV. - 1878-1861 .- 1440-2440. ; 17:3, s. 317-321
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- ObjectivesTo determine if a morning training session could alter afternoon physical performance. Moreover, as testosterone (T) and cortisol (C) concentrations are significant predictors of physical performance, and both show circadian declines across the day, we examined the effects of morning training on diurnal T and C responses. DesignEighteen semi-professional rugby union players completed this randomised and counter-balanced study. MethodsFollowing morning saliva collection (0900. h), players completed a control (rested), Sprint (5 × 40 m) or Weights (3 repetition-maximum [RM] bench press and squat) trial. In the afternoon (15:00. h) of each trial, a further saliva sample was collected before players completed a performance test (3RM back squat and bench press, 40. m sprint, countermovement jump [CMJ]). ResultsSalivary T concentrations declined from am to pm under Control and Sprint, but not under Weights. Delta T, from am to pm, was greater under Control (-10.9±2.4pgml-1) compared to Sprints (-6.2±7.1pgml-1) and Weights (-1.2±5.5pgml-1) (p≤0.001). Delta C, from am to pm, was greater under Control compared to both Sprint and Weights (p<0.05). Players elicited better CMJ peak power, 40-m time, 3RM bench and squat performance under Weights compared with Control and Sprint (p<0.05). Faster 40-m times were seen under Sprint, when compared to Control (p<0.05). ConclusionsPerforming morning strength training is associated with improved physical performance in the afternoon. Additionally, the circadian decline in T concentrations appeared offset by morning training. However, it is unclear if T concentrations are, in part, causal of these improved responses or simply a reflective marker. © 2013 Sports Medicine Australia.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Keyword
- Potentiation
- Power
- Steroid hormone
- Strength
- Testosterone
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Science and Medicine in Sport (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Cook, C. J.
- Kilduff, L. P.
- Crewther, B. T.
- Beaven, Martyn
- West, D. J.
- About the subject
-
- MEDICAL AND HEALTH SCIENCES
- MEDICAL AND HEAL ...
- and Health Sciences
- and Sport and Fitnes ...
- Articles in the publication
- Journal of Scien ...
- By the university
- Mid Sweden University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
