contestada

interval training

A.involves short periods of intense activity and is used to build strength, speed, and power

B. can guarantee an athlete an injury-free season

C. will get you into shape in about five days

D. involves long periods of low-intensity activity and builds stamina

Respuesta :

The answer is A. The short periods of intense activity are called intervals and it is used in strength building exercises.

it’s a because interval you quickly switch back and forth through workouts over and over so these workouts have to be short and fast to work. Obv.