Exercise study protocols.

<p>The HVT protocol lasted a total of 130% of PPO followed by 120 min at 55% PPO (A). The 4×4 min protocol lasted a total of 45 min and consisted of a 10 min warming up at 50% of PPO followed by four 4 min intervals at 90–95% of PPO separated by 3 min active recovery (10 min recovery after the last ... View More