Title: Recruitment of Motor Units in the Medial Gastrocnemius Muscle during Human 1 Quiet Standing: Is Recruitment Intermittent? What Triggers Recruitment? 2 Running Title: Control of Medial Gastrocnemius Muscle in Standing 21
نویسندگان
چکیده
Author Addresses: 10 1 – School of Physical Education and Sports, Federal University of Rio de Janeiro, 11 Brazil. 12 2 – Laboratory for Engineering of the Neuromuscular System (LISiN), Politecnico di 13 Torino, Italy. 14 3 – Institute for Biomedical Research into Human Movement and Health (IRM), 15 Manchester Metropolitan University, UK. 16 4 – Department of Neurorehabilitation Engineering, Bernstein Center for Computational 17 Neuroscience, University Medical Center Göttingen, Georg-August University, 18 Göttingen, Germany. 19 5 – Center for Sensory-Motor Interaction, Aalborg University, Denmark. 20
منابع مشابه
Recruitment of motor units in the medial gastrocnemius muscle during human quiet standing: is recruitment intermittent? What triggers recruitment?
The recruitment and the rate of discharge of motor units are determinants of muscle force. Within a motoneuron pool, recruitment and rate coding of individual motor units might be controlled independently, depending on the circumstances. In this study, we tested whether, during human quiet standing, the force of the medial gastrocnemius (MG) muscle is predominantly controlled by recruitment or ...
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There is limited investigation of the interaction between motor unit recruitment and rate coding for modulating force during standing or responding to external perturbations. Fifty-seven motor units were recorded from the medial gastrocnemius muscle with intramuscular electrodes in response to external perturbations in standing. Anteriorly directed perturbations were generated by applying loads...
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متن کاملMotor Unit Number Estimation in Normal and Parkinsonism Model of Medial Gastrocnemius Muscle in Rats
Motor units (MUs) reflect the function of the central nervous motor system. Thus, the estimated MU number is a good option to investigate the functional movement disorder in the Parkinson’s disease (PD). The purpose of this study was to compare the estimated MUs number in the medial gastrocnemius (MG) muscle of the normal rats and those with the Parkinsonism. The MG muscle of two age-matche...
متن کاملVariations in motor unit recruitment patterns occur within and between muscles in the running rat (Rattus norvegicus).
Motor units are generally considered to follow a set, orderly pattern of recruitment within each muscle with activation occurring in the slowest through to the fastest units. A growing body of evidence, however, suggests that recruitment patterns may not always follow such an orderly sequence. Here we investigate whether motor unit recruitment patterns vary within and between the ankle extensor...
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تاریخ انتشار 2011