muscular fatigue


Also found in: Dictionary, Thesaurus, Legal.

muscular fatigue

a condition in which a muscle loses its ability to contract as a result of overactivity. It is usually a period after stimulation during which the muscle is unresponsive to a second stimulus.

muscular

1. pertaining to a muscle.
2. having well developed muscles.

muscular asymmetry
due usually to neuronal or disuse atrophy on one side of the body.
muscular atrophy
wasting away of muscle or a muscle because of reduction in cross sectional area of muscle fibers; may be due to disease of the muscle or its nerve supply, or to disuse or nutritional inadequacy. See also hereditary spinal muscular atrophy (below).
muscular degeneration
varies in severity from degeneration of only the myofibrils or degeneration of the myofibrils plus sarcoplasm, leaving satellite cells and myonuclei and sarcolemmal laminae unaffected, or further levels of increasing severity.
muscular denervation
destruction or congenital absence of the motor nerve supply to the muscle; manifested by paralysis and atrophy and absence of spinal reflexes.
muscular denervation atrophy
progressive shrinkage of muscle fibers when the nerve supply to the muscle is severed.
Duchenne muscular dystrophy
an X-linked inherited disease in humans, which is believed to be due to a deficiency of a membrane-associated protein, dystrophin. An analogous disease has been identified in Irish terriers, Golden retrievers and mice.
muscular dystrophy
any degenerative muscular disorder due to faulty nutrition of the muscles. Causes muscle weakness, liberation of myoglobin into the circulation from skeletal muscle and subsequent wasting and possible contracture. In humans there are a group of genetically determined, painless, degenerative myopathies that are progressively crippling because muscles are gradually weakened and eventually atrophy. In food animals the principal disease in this group is enzootic muscular dystrophy caused by a nutritional deficiency of selenium and/or vitamin E. Sporadic cases of muscular dystrophy of unknown etiology occur rarely in dogs.
muscular fascicle
muscular fasciculation
muscular fatigue
during brief, intense exercise probably due in large part to the accumulation of lactate.
hereditary spinal muscular atrophy
progressive degeneration of the motor cells of the spinal cord. It is an inherited, slowly progressive flaccid tetraparesis from an early age, with muscular atrophy. Occurs as an autosomal recessive trait in Swedish lapland dogs, a dominant trait in Brittany spaniels. Also reported in German shepherd dogs, English pointers and Rottweilers. See also hereditary neuronal abiotrophy of Swedish Lapland dogs. In cattle, inherited as an autosomal recessive trait and reported in Brown Swiss, Holstein-Friesian and Red Danish calves with an onset at 3 to 8 weeks of age. There is hind limb ataxia progressing to recumbancy. Associated with lesions in the lower motor neurons of the cervical and lumbar spinal cord.
muscular hernia
hernia through an enclosing muscle sheath.
muscular hyperplasia
an increase in the size of a muscle mass due to an increase in the number of muscle cells. See also myofiber hyperplasia, ileal muscular hypertrophy.
muscular hypertrophy
an increase in the size of a muscle mass due to an increase in the length and thickness of each muscle cell without any increase in the number of cells.
muscular ischemia
short duration or temporary or partial cessation of blood supply causes loss of muscle power and possibly some muscle fiber necrosis; long duration or severe or complete cessation cause ischemic muscle necrosis and atrophy. See also compartment syndrome, downer cow syndrome.
muscular ischemic necrosis
see ischemic myonecrosis.
muscular mineralization
ectopic deposition of minerals in muscle. See mineralization.
myelopathic muscular atrophy
muscular atrophy due to a lesion of the spinal cord, as in spinal muscular atrophy.
nutritional muscular dystrophy
see muscular dystrophy (above).
muscular parasitic diseases
includes cysticercosis, hepatozoonosis, Neosprum caninum myositis, sarcocystosis, toxoplasmosis, trichenellosis.
muscular receptors
muscle spindles which respond to stretch.
muscular steatosis
excess fat deposits in muscle; a problem only at meat hygiene inspection.
muscular vascular occlusive syndrome
see ischemic myonecrosis.
muscular weakness
X-linked muscular dystrophy
see Duchenne muscular dystrophy (above).
References in periodicals archive ?
Once again, careful attention was taken to avoid muscular fatigue of the involved side and over-facilitation of the uninvolved side.
Moreover, the greater destabilizing effect on postural control with EC after IAT exercise could be a consequence of higher stimulation of otholitic system by linear head acceleration, higher conflict of information between somatosensory and visual inputs, and muscular fatigue during a running at higher speed.
Furthermore, general muscular fatigue, where additional fibers have to be recruited due to reduced power output of specific motor units, likely does not occur.
Changes in muscle contractile properties and neural control during human muscular fatigue.
The free leg can now assist with pushing off the floor when you reach muscular fatigue and want to perform some additional "negative (lowering) only" reps.
Galilee-Belfer and Guskiewicz, 2000 also reported that muscular fatigue and sudden changes in training intensity or duration may contribute to stress fracture incidence.
Taking these particular exercises to the point of complete muscular fatigue is neither recommended nor sensible.
Is taken to the point of momentary muscular fatigue to recruit, exhaust, and overload a maximum number of MUs, especially Type 2B.
The change in median frequency was calculated for the time period (Hz/sec) and employed as an estimate for muscular fatigue.
Coaching points: When squatting, we do not take the sets to momentary muscular fatigue due to the nature of the exercise and the compromising position the athlete would be placed in under those circumstances.
Several studies addressing technical ergonomy and muscular fatigue (Gheluwe, 1988) brought forth using notably electromyographic analysis the idea that the upper muscular groups were much more active than those of the lower body (Guerrin et al.