Effect of vibrating agonist or antagonist muscle on the reflex response to sinusoidal displacement of the human forearm

AUTOR(ES)

Matthews, P. B. C.

RESUMO

1. The mechanical resistance of the human forearm to imposed sinusoidal movements has been determined. By means of a visual monitor, subjects maintained a steady force (typically 100 N) by flexing the elbow so as to pull with the wrist against an isometric force transducer. This was mounted upon a stretcher which displaced the forearm sinusoidally at frequencies of 7-11 Hz with a peak-to-peak amplitude of movement of about 1 mm. The average mechanical resistance over 10-40 sec of stretching was analysed into its vector components at the fundamental of the stretching frequency. Observations were made of both the normal resistance and that obtained while applying continuous vibration at 100 Hz to the tendon of either the biceps (agonist) or triceps (antagonist).

Documentos Relacionados

• Evidence favouring presynaptic inhibition between antagonist muscle afferents in the human forearm.
• Comparison of the reflex reactivity of skin and muscle veins in the human forearm
• Action of vibration on the response of cat muscle spindle Ia afferents to low frequency sinusoidal stretching.
• Effect of Human Growth Hormone on Muscle and Adipose Tissue Metabolism in the Forearm of Man *
• Response of the normal human ankle joint to imposed sinusoidal movements.