Answer: physical fitness
Step-by-step explanation:
Physical fitness is the ability of one to carry out daily tasks and exercises with vigor and alertness without undue fatigue. Physical fitness includes a combination of components which consists of cardiorespiratory endurance also known as aerobic power, skeletal muscle endurance, strength and power, flexibility, balance, fast movement, reaction to time, and composition of the body.
These combined factors contribute largely to undue fatigue with vigorous exercise.