The results showed that both HFIP and the tetanus increased power output at high contraction velocities (>75 mm/s) when followed by a train of 80 or 120 Hz (200 Hz resulted in no effects). Mechanical power output was increased maximally by HFIP to 120 and 168% by the tetanus. Furthermore, when HFIP or the tetanus were followed by a train of 80 Hz, the peak power in the power-velocity curve tended to be shifted to a higher velocity.
Research carried out by Fabio Abbate as part of his PhD which was supervised by Anthony Sargeant and Arnold de Haan.
Effects of high-frequency initial pulses and posttetanic potentiation on power output of skeletal muscle.
Journal of Applied Physiology
J Appl Physiol. 2000 Jan;88(1):35-40.