Muscle Shear Elastic Modulus Provides an Indication of the Protection Conferred by the Repeated Bout Effect.

ABSTRACT: Background: The neuromuscular system is able to quickly adapt to exercise-induced muscle damage (EIMD), such that it is less affected by subsequent damaging exercise, a phenomenon known as the repeated bout effect (RBE). The objective was to determine whether the mechanical properties of the quadriceps, as evaluated by shear wave elastography (SWE), were less affected when a second bout of eccentric-biased exercise was performed 2 weeks later. It was hypothesized that the first bout would confer protection against extensive muscle damage through an adaptation of the muscle stiffness before the second bout (i.e., higher muscle stiffness). Methods: Sixteen males performed two identical bouts of downhill walking separated by 2 weeks (45 min at 4.5 km.h^-1; gradient: 25

SUBMITTER: Chalchat E 

PROVIDER: S-EPMC9098813 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature