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Unformatted text preview: that will be required to hold the tonic position . In theory, the biceps should increase their activity around 120 degrees of flexion, and the triceps should have decreased their activity around 90 degrees of flexion, because at this point the biceps have increased their activity There is an increase in muscle activity of the biceps during elbow flexion in order to compensate for the passive restoring force generated by the triceps, and vice versa during extension. Fatigue can result in more motor units being recruited in order for the muscle fibers to maintain the generation of intended force. Henneman’s size principle should be applied in this explanation EMG muscle activity should increase as force increases Laboratory 2: Static and Dynamic Postural Control -Postural control has been defined as the control of the position of the body in space in order to maintain balance and orientation -...
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- Fall '11
- Muscle activity, Tonic Muscle Activation