Which phase of cardiorespiratory training challenges the phosphagen system and is typically only entered into for clients with sport specific training goals? a. Anaerobic-endurance Training b. Aerobic-base Training c. Aerobic-efficiency Training d. Anaerobic-power Training
d) Anaerobic-power training overloads the fast glycolytic system and challenges the phosphagen system with high intensity intervals, which are typically sport specific.