Muscular adaptation and strength during the early phase of eccentric training: influence of the training frequency

Medicine and Science in Sports and Exercise
S SorichterB Puschendorf

Abstract

We investigated the effects of different training frequencies on maximum isometric voluntary contraction (MVC) force and plasma concentrations of muscle proteins during the early phase of eccentric training. MVC and plasma concentrations of creatine kinase (CK) and slow-twitch skeletal (cardiac beta-type) myosin heavy chain (MHC) fragments were measured before and 4 and 7 d after performing the first and last training task. Training tasks, which comprised 70 high-force eccentric contractions involving the thigh muscles (single leg), were performed under supervision in three groups (A, B, C) at the beginning and at the end of the study period (7 wk). In addition, groups A (N = 10) and B (N = 10) trained during the study period starting 1 wk after the first training task. Group A performed one training task once a week for 5 wk and group B (N = 10) twice a week for 2 wk and three times a week during the subsequent 3 wk. In all three groups the first training task resulted in delayed CK and MHC peaks and decrements in MVC, which were comparable (P > 0.05). Only training regimen B resulted in a significant increase in the MVC. Compared with the first training task training regimens, A and B significantly (P < 0.01) reduced the incr...Continue Reading

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Citations

Dec 22, 1999·Journal of Applied Physiology·J M FoleyR A Meyer
Jun 1, 2016·Journal of Strength and Conditioning Research·Michel A BrentanoLuiz F M Kruel
Jul 11, 2018·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Joshua P GordonDale R Wagner
Jan 28, 2005·The Cochrane Database of Systematic Reviews·N L AshworthS C Marshall
Feb 26, 2019·Frontiers in Physiology·Ashwin W IsaacsKathryn H Myburgh
Jan 10, 2002·Medicine and Science in Sports and Exercise·Kazunori Nosaka, Mike Newton
May 9, 2012·Journal of the International Society of Sports Nutrition·Yanita McLeayStephen R Stannard

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