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Interaction between muscle stiffness and stretch reflex sensitivity after long‐term stretch‐shortening cycle exercise
Author(s) -
Avela Janne,
Komi Paavo V.
Publication year - 1998
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/(sici)1097-4598(199809)21:9<1224::aid-mus19>3.0.co;2-r
Subject(s) - stretch reflex , muscle stiffness , reflex , eccentric , physical medicine and rehabilitation , stiffness , stretch shortening cycle , muscle contraction , peripheral , electromyography , muscle fatigue , medicine , cardiology , anatomy , materials science , physics , physiology , quantum mechanics , composite material , jumping
The short latency stretch‐reflex component (M 1 ) and its interactions with muscle stiffness and with muscle performance were investigated before and after long‐term stretch‐shortening cycle (SSC) exercise. Dramatic fatigue induced reduction in maximal SSC performance capability, and electromyographic activity was accompanied by a consistent decrease in the M 1 reflex component and eccentric peak stiffness of the muscle. It can be suggested, therefore, that the decreased muscle performance is not simply a direct effect of central or peripheral fatigue, but is partly due to impairment of the ability to utilize stiffness‐related elastic energy. © 1998 John Wiley & Sons, Inc. Muscle Nerve 21:1224–1227, 1998.