[Comparison of the increase of stiffness produced during sinusoidal stretch of the long fibula muscle in the cat by the contraction of slow or fast motor units].
The increase in stiffness of cat peroneus longus muscle elicited by the contraction of homogeneous groups of motor units (slow, fast fatigue-resistant and fast fatigable) was measured during sinusoidal stretches (20-80 Hz) of small amplitude (40-100 micron). For comparable tetanic tensions, slow units increase muscle stiffness more than fast unit.
D000818:Animals; D002415:Cats; D005360:Fibula; D009043:Motor Activity / Q000502:physiology; D009119:Muscle Contraction; D009129:Muscle Tonus; D009130:Muscle, Smooth / Q000502:physiology*; D012026:Reflex, Stretch
Comparaison de l'augmentation de raideur produite au cours de l'étirement sinusoïdal du muscle long péronier du chat par la contraction d'unités motrices lentes ou rapides.