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Maximal inspiratory and transdiaphragmatic pressures vary with lung volume but the possibility that some of this variability reflects variable voluntary drive to the diaphragm has not been investigated systematically. We assessed the influence of lung volume on the ability to activate the diaphragm with voluntary effort during maximal Mueller manoeuvres. Voluntary activation of the diaphragm was assessed...
We investigated the role of local cutaneous signals and of co-contraction of antagonists in repeated judgements of heaviness of weights lifted by flexor pollicis longus. A reference weight lifted by right thumb flexion was matched to a weight lifted by left thumb flexion. Anaesthesia of the right thumb, or of the superficial radial, dorsal ulnar or mixed radial nerves failed to impair accuracy of...
An exercise-induced reduction in muscle strength or muscle fatigue may result from both peripheral and central factors. One way to estimate the relative contribution of these factors is to examine the performance of the muscle in both voluntary and stimulated contractions. Central fatigue is the progressive failure to drive muscles maximally during voluntary exercise and it can be measured with interpolation...
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