INFLUENCE OF THYROID STATUS ON THE LATENT PERIOD OF EXCITATION IN WHITE RATS’ SKELETAL MUSCLE

In experiments performed on the anterior tibial muscle of white rats under in situ conditions it was established that experimental hyperthyroidism associated with shortening of latent period of the muscle excitation (-26%) and with elevation of the anterior tibial muscle “M-response” amplitude (+23%). Whereas experimental hypothyroidism led to opposite effects — duration of the latent period of the muscle excitation increased (+21%), while “M-response” amplitude decreased (-19%).