Fig. 3.

Strength of the ipsi- and contralateral m. triceps surae (TS) contraction induced by electrical fatigue stimulation before and after C₆₀FAS injection into the left TS: a, c time protocol registrations of the left and right TS contraction, respectively (triangles indicate the moment the of the C₆₀FAS injection); b, d amplitude values of the muscle force (P ₁) at the beginning of single tetanic contractions (squares) and ΔP (the difference between the force values at the beginning and at the end of muscle contraction; triangles). The rapid development of fatigue (a) (decrease in the muscle strength of more than 50%) led to shortening of the stimulation time (I–III). Designations for I–IV (a) and I–III at (c) correspond to recordings on (b) and (d), respectively. Indices: L, R left and right TS; F registration of muscle force after the administration of C₆₀FAS into the left TS