Hormonal responses to a resistance exercise performed under the influence of delayed onset muscle soreness

Hormonal responses to an unaccustomed knee-extension exercise (E1; 5 times 10 repetitions with 40% load of 1RM [1 repetition maximum] followed by 2 sets until exhaustion) were compared in 6 men with the corresponding responses to an identical exercise performed 2 days later under the influence of de...

Full description

Saved in:
Bibliographic Details
Published in:Journal of strength and conditioning research 2002-08, Vol.16 (3), p.383-389
Main Authors: Pullinen, Teemu, Mero, Antti, Huttunen, Pirkko, Pakarinen, Arto, Komi, Paavo V
Format: Article
Language:English
Subjects:
Adult
Electromyography
Epinephrine - blood
Exercise - physiology
Humans
Lactic Acid - blood
Leg
Male
Muscle Fatigue - physiology
Muscle, Skeletal - physiology
Norepinephrine - blood
Pain - blood
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hormonal responses to an unaccustomed knee-extension exercise (E1; 5 times 10 repetitions with 40% load of 1RM [1 repetition maximum] followed by 2 sets until exhaustion) were compared in 6 men with the corresponding responses to an identical exercise performed 2 days later under the influence of delayed onset muscle soreness (DOMS) (E2). Both exercises were performed with a variable-resistance machine causing exhaustion with significantly fewer repetitions than a normal constant-resistance knee-extension device does. The E1 induced DOMS as expected, but the 1RM, the total work done, and the repetition number and frequency were not different in the 2 exercises. In the 2 sets to failure, the mean repetition number varied between 17 and 25. The exercise-induced norepinephrine, epinephrine, testosterone, cortisol (COR), and growth hormone (GH) increases were similar in the 2 exercises, although the overall level of COR and GH, including the preexercise concentrations, tended to decline in the second exercise. The results may thus suggest that the hormonal response to resistance exercise is not significantly altered when performed soon after an unaccustomed exercise bout leading to DOMS.
ISSN:1064-8011
DOI:10.1519/00124278-200208000-00008