Adaptive strength gains in dystrophic muscle exposed to repeated bouts of eccentric contraction

Adaptive strength gains in dystrophic muscle exposed to repeated bouts of eccentric contraction.

The objective of this study was to determine the functional recovery and adaptation of dystrophic muscle to multiple bouts of contraction-induced injury. Because lengthening (i.e., eccentric) contractions are extremely injurious for dystrophic muscle, it was considered that repeated bouts of such contractions would exacerbate the disease phenotype in mdx mice. Anterior crural muscles (tibialis ...

Impact of Repeated Bouts of Eccentric Exercise on Skeletal Muscle Morphology and Myogenic Gene Expression

Importance of satellite cells in the strength recovery after eccentric contraction-induced muscle injury.

The purpose of this study was to determine if the elimination of satellite cell proliferation using gamma-irradiation would inhibit normal force recovery after eccentric contraction-induced muscle injury. Adult female ICR mice were implanted with a stimulating nerve cuff on the common peroneal nerve and assigned to one of four groups: 1) irradiation- and eccentric contraction-induced injury, 2)...

Concentric and Eccentric: Muscle Contraction or Exercise?

1 Faculty of Medicine and Surgery, University of “Tor Vergata” Rome (Italy). 2 SPO Sport Performance Optimization Lab, CNMSS, Tunis (Tunisia) 3 UR CIAMS – Motor Control and Perception Group, Sport Sciences Department, Université Paris-Sud, Orsay (France). 4 School of Exercise and Sport Science, University of Verona (Italy). 5 Orthopaedic and Sports Medicine Hospital, Doha (Qatar). Authors subm...

The Effects of Eccentric Contraction Duration on Muscle Strength, Power Production, Vertical Jump, and Soreness.

Mike, JN, Cole, N, Herrera, C, VanDusseldorp, T, Kravitz, L, and Kerksick, CM. The effects of eccentric contraction duration on muscle strength, power production, vertical jump, and soreness. J Strength Cond Res 31(3): 773-786, 2017-Previous research has investigated the effects of either eccentric-only training or comparing eccentric and concentric exercise on changes related to strength and p...