Frequency of training refers to the number of times per week a person should exercise. The American College of Sports Medicine (ACSM) recommends that people exercise three to five times per week. For most people, exercising more than _____ times a week does not significantly improve their level of conditioning. Likewise, an average of only two workouts per week does not seem to produce a measurable improvement in cardiorespiratory conditioning.
a) One
b) Six
c) Four
d) Seven