Repeated, intense use of muscles leads to a decline in performance known as muscle
fatigue. Many muscle properties change during fatigue including the action potential …

Movement is accomplished by the controlled activation of motor unit populations. Our
understanding of motor unit physiology has been derived from experimental work on the …

The aim of this review was to examine the mechanisms by which physical activity and
inactivity modify muscle fatigue. It is well known that acute or chronic increases in physical …

Significance: Skeletal muscle is a highly plastic tissue. Exercise evokes signaling pathways
that strongly modify myofiber metabolism and physiological and contractile properties of …

Biopsy samples were taken from vastus lateralis muscle of seven young (YO, age 30.2±2.2
years), and seven elderly (EL, age 72.7±2.3 years) subjects and two elderly subjects whose …

The objectives of this review were to examine the present knowledge on:(1) the muscle fiber
characteristics of skeletal muscle,(2) the diversity of the myofibrillar protein isoforms and …

Functional performance of lower limb muscles and contractile properties of chemically
skinned single muscle fibers were evaluated before and after 8 wk of maximal effort stretch …

Although numerous studies have reported the relationships among muscle fiber
characteristics, lean meat content and meat quality, controversial perspectives still remain …

The purpose of this study was to determine whether there was an age‐related decline in the
isometric and isotonic contractile function of permeabilized slow (MHC I) and fast (MHC IIa) …

Controlled mechanical ventilation induced a profound diaphragm muscle dysfunction and
atrophy. The effects of diaphragmatic contractions with assisted mechanical ventilation on …