Article (Scientific journals)
Effect of the Lengthening of the Protocol on the Reliability of Muscle Fatigue Indicators
Bosquet, Laurent; Maquet, Didier; Forthomme, Bénédicte et al.
2010In International Journal of Sports Medicine, 31 (2), p. 82-88
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Abstract :
[en] The aim of this study was to examine absolute and relative reliability of fatigue measures calculated from peak torque or total work during 20, 30, 40 and 50 reciprocal maximal concentric contractions performed on an isokinetic dynamometer at 180 ° · s " 1 . Eighteen moderately active men performed 50 reciprocal maximal concentric contractions on three occasions with one 7 – 10 days recovery between each session. Peak torque and total work were computed for each contraction and subsequently summed to compute cumulated performance after respectively 20, 30, 40 and 50 repetitions. Muscle fatigue was determined after 20, 30, 40 and 50 repetitions by the fatigue index, the percent decrease in performance and the slope. Reliability of average peak torque or average total work was similar and was not a! ected by the lengthening of the protocol, although a learning e! ect was evident for knee flexors. Reliability of fatigue measures calculated from peak torque or total work was similar, improved with the lengthening of the protocol and was better for knee extensors. Measuring average peak torque or average total work and the slope during a protocol involving 30 maximal reciprocal concentric contractions appear to represent a better compromise between reliability and physiological interpretability of the data.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Bosquet, Laurent;  Universite de Poitiers, Facult é des sciences du sport, Poitiers, France
Maquet, Didier ;  Université de Liège - ULiège > Département des sciences de la motricité > Département des sciences de la motricité
Forthomme, Bénédicte ;  Université de Liège - ULiège > Département des sciences de la motricité > Rééducation du membre supérieur
Nowak, Nicolas ;  Université de Liège - ULiège > Médecine de l'appareil locomoteur
Lehance, Cédric ;  Université de Liège - ULiège > Département des sciences de la motricité > Département des sciences de la motricité
Croisier, Jean-Louis ;  Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie générale et réadaptation
Language :
English
Title :
Effect of the Lengthening of the Protocol on the Reliability of Muscle Fatigue Indicators
Publication date :
2010
Journal title :
International Journal of Sports Medicine
ISSN :
0172-4622
eISSN :
1439-3964
Publisher :
Thieme Medical Publishing Inc., Stuttgart, Germany
Volume :
31
Issue :
2
Pages :
82-88
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 December 2009

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