Activity tolerance is described as which concept?

• A. Inability to perform any activity
• B. Maximum range of motion at a joint
• C. Type and amount of exercise a person can perform without undue exertion or injury
• D. Daily caloric intake need

Answer: (C)

Activity tolerance is the level of physical activity a person can perform safely without excessive fatigue or risk of injury. The description that matches this concept is the type and amount of exercise a person can perform without undue exertion or injury. It’s about endurance and what a person can handle before fatigue or discomfort limits activity, not about being unable to move at all, joint range of motion, or daily calorie needs. In practice, assessing activity tolerance helps tailor progressive activity plans and monitor how well a patient can sustain effort during rehabilitation, such as determining how long someone can walk before needing rest or how their heart rate and breathing respond to exertion.