Hill, Ethan C. Housh, Terry J. Keller, Joshua L. Smith, Cory M. Schmidt, Richard J. Johnson, Glen O.
Published in
Journal of Musculoskeletal & Neuronal Interactions
Objectives: The purpose of this study was to examine the effects of exercise intensity and strength on sex-related differences in eccentric peak torque (PT), muscle blood flow, and neuromuscular responses following fatiguing, submaximal forearm flexion eccentric protocols. Methods: Thirty-six subjects were stratified by sex and strength into 4 equa...
Schmit, C Duffield, R Hausswirth, C Brisswalter, J Le Meur, Y
© 2018 Human Kinetics, Inc. Purpose: To determine the effect of high- versus low-intensity training in the heat and ensuing taper period in the heat on endurance performance. Methods: In total, 19 well-trained triathletes undertook 5 days of normal training and a 1-wk taper including either low- (heat acclimation [HA-L], n = 10) or high-intensity (...
Looft, John M Herkert, Nicole Frey-Law, Laura
Published in
Journal of biomechanics
This study aimed to test whether adding a rest recovery parameter, r, to the analytical three-compartment controller (3CC) fatigue model ( Xia and Frey Law, 2008 ) will improve fatigue estimates during intermittent contractions. The 3CC muscle fatigue model uses differential equations to predict the flow of muscle between three muscle states: Resti...
Muddle, Tyler W D Colquhoun, Ryan J Magrini, Mitchel A Luera, Micheal J DeFreitas, Jason M Jenkins, Nathaniel D M
Published in
Physiological reports
The purpose of this investigation was to evaluate the effects of repeated, high- (HT: 70% MVIC) versus low-torque (LT: 30% MVIC) isometric exercise performed to failure on motor unit (MU) recruitment and firing behavior of the vastus lateralis. Eighteen resistance-trained males (23.1 ± 3.8 years) completed familiarization, followed by separate expe...
Doll, Brian D Kirsch, Nicholas A Bao, Xuefeng Dicianno, Brad E Sharma, Nitin
Published in
Muscle & nerve
Optimal frequency modulation during functional electrical stimulation (FES) may minimize or delay the onset of FES-induced muscle fatigue. An offline dynamic optimization method, constrained to a modified Hill-Huxley model, was used to determine the minimum number of pulses that would maintain a constant desired isometric contraction force. Six abl...
Finn, H Rouffet, DM Kennedy, DS Green, S Taylor, JL
Copyright © 2018 American Physiological Society. All rights reserved. During fatiguing voluntary contractions, the excitability of motoneurons innervating arm muscles decreases. However, the behavior of motoneurons innervating quadriceps muscles is unclear. Findings may be inconsistent because descending cortical input influences motoneuron excitab...
Coutinho, D Gonçalves, B Wong, DP Travassos, B Coutts, AJ Sampaio, J
© 2018 Elsevier B.V. This study examined the effects of induced mental and muscular fatigue on soccer players’ physical activity profile and collective behavior during small-sided games (SSG). Ten youth soccer players performed a 5vs5 SSG under three conditions: a) control, playing without any previous activity; b) muscular fatigue, playing after p...
Kellmann, M Bertollo, M Bosquet, L Brink, M Coutts, AJ Duffield, R Erlacher, D Halson, SL Hecksteden, A Heidari, J
...
© 2018 Human Kinetics, Inc. The relationship between recovery and fatigue and its impact on performance has attracted the interest of sport science for many years. An adequate balance between stress (training and competition load, other life demands) and recovery is essential for athletes to achieve continuous high-level performance. Research has f...
Heaton, Lisa E Davis, Jon K Rawson, Eric S Nuccio, Ryan P Witard, Oliver C Stein, Kimberly W Baar, Keith Carter, James M Baker, Lindsay B
Team sport athletes face a variety of nutritional challenges related to recovery during the competitive season. The purpose of this article is to review nutrition strategies related to muscle regeneration, glycogen restoration, fatigue, physical and immune health, and preparation for subsequent training bouts and competitions. Given the limited opp...
Scott, BR Slattery, KM Sculley, DV Smith, SM Peiffer, JJ Dascombe, BJ
© 2017 Scandinavian Society of Clinical Physiology and Nuclear Medicine. Published by John Wiley & Sons Ltd This study assessed whether hypoxia during high-load resistance exercise could enhance the acute physiological responses related to muscular development. Twelve trained men performed exercise in three conditions: normoxia (fraction of inspire...
