Recovery of skeletal muscle contractility and hormonal responses to strength exercise after two weeks of high-volume strength training.

Full Abstract

Exercise induced neuromuscular fatigue, recovery and hormonal responses were studied before (R1) and after (R2) 2 weeks of heavy strength training. Seventeen weight-trained male students were recruited into a heavy training group (HT, n = 10) and a control group (n = 7). During heavy training HT exercised leg extensors every day while control group exercised twice a week. Test workouts (R1 and R2) were used to induce neuromuscular fatigue and hormonal responses. Acute fatigue after the test workouts was reduced after heavy training in the HT group (P < 0.05) but not in the control group. Twenty-two hrs after the test workouts recovery from fatigue was not complete before heavy training, but recovery was complete after heavy training in both groups. The relative change in exercise induced cortisol and GH response, from before to after heavy training, was significantly different between groups, but for both hormones alterations in the control groups response was responsible for the between groups difference. IGF-1 concentration was reduced 22 h after the test workout performed after heavy training in the HT group (P < 0.05). In conclusion, two weeks of high volume strength training attenuated neuromuscular fatigue after a test workout with only minor changes in exercised induced hormone response.

Author information

Author/s: Raastad, T (T); Glomsheller, T (T); Bjøro, T (T); Hallén, J (J);

Affiliation: The Norwegian University of Sport and Physical Education, PO Box 4014 US, N-0806 Oslo, Norway, Hormone Laboratory, Aker Hospital, N-0514 Oslo, Norway. trulsr(-atsign-)nih.no

Journal and publication information

Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

Journal: Scandinavian journal of medicine & science in sports (Scand J Med Sci Sports), published in Denmark. (Language: eng)

Reference: 2003-Jun; vol 13 (issue 3) : pp 159-68

Dates: Created 2003/05/19; Completed 2003/10/14; Revised 2006/11/15;

PMID: 12753488, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article
(including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.