Dan is working on being able to do sit ups for a minute without experiencing fatigue. Which component of physical fitness is he trying to improve
A muscular strength
B Cardiorespiratory Fitness
C flexibility
D muscular endurance

The answer is D) muscular endurance. This is became Dan wants to extend the amount of time he is doing sit ups without needing to stop. The act of extending your exercise for longer periods of time is known as endurance, and instead of focusing on strength, it focuses on maintenance.

True, using a pedometer can promote a physically active lifestyle.