Changes in Relations between Surface Electromyogram and Fatigue Level by Repeating Fatiguing Static Contractions.
نویسندگان
چکیده
منابع مشابه
Recovery from supraspinal fatigue is slowed in old adults after fatiguing maximal isometric contractions.
This study compared the contribution of supraspinal fatigue to muscle fatigue in old and young adults. Transcranial magnetic stimulation (TMS) of motor cortex was used to assess voluntary activation during maximal voluntary contractions (MVCs) of elbow flexor muscles in 17 young adults (25.5 +/- 3.6 yr; mean +/- SD) and 7 old adults (73.0 +/- 3.3 yr). Subjects performed a fatigue task involving...
متن کاملInvited Review Task failure during fatiguing contractions performed by humans
Maluf, Katrina S., and Roger M. Enoka. Task failure during fatiguing contractions performed by humans. J Appl Physiol 99: 389–396, 2005; doi:10.1152/japplphysiol.00207.2005.—By comparing the physiological adjustments that occur when two similar fatiguing contractions are performed to failure, it is possible to identify mechanisms that limit the duration of the more difficult task. This approach...
متن کاملTask failure during fatiguing contractions performed by humans.
By comparing the physiological adjustments that occur when two similar fatiguing contractions are performed to failure, it is possible to identify mechanisms that limit the duration of the more difficult task. This approach has been used to study two fatiguing contractions, referred to as the force and position tasks, which differed in the type of feedback given to the subject and the amount of...
متن کاملA method for a categorized and probabilistic analysis of the surface electromyogram in dynamic contractions
The human motor system permits a wide variety of complex movements. Thereby, the inter-individual variability as well as the biomechanical aspects of the performed movement itself contribute to the challenge of the interpretation of sEMG signals in dynamic contractions. A procedure for the systematic analysis of sEMG recordings during dynamic contraction was introduced, which includes categoriz...
متن کاملChanges in Tetrodotoxin-Resistant C-Fibre Activity during Fatiguing Isometric Contractions in the Rat
It is by now well established that tetrodotoxin-resistant (TTX-R) afferent fibres from muscle in the rat exhibit a multisensitive profile, including nociception. TTX-R afferent fibres play an important role in motor control, via spinal and supraspinal loops, but their activation and function during muscle exercise and fatigue are still unknown. Therefore, the specific effect of isometric fatigu...
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ژورنال
عنوان ژورنال: The Annals of physiological anthropology
سال: 1993
ISSN: 0287-8429
DOI: 10.2114/ahs1983.12.285