Physical activity involves movements that require energy, exercise is structured physical activity for fitness improvement, and physical fitness enables daily tasks without fatigue.
Physical Activity: Physical activity refers to any bodily movement produced by skeletal muscles that requires energy expenditure. It includes activities such as walking, running, or playing sports.
Exercise: Exercise is a subcategory of physical activity that is planned, structured, repetitive, and aims to improve or maintain physical fitness. Examples include strength training, aerobics, and flexibility exercises.
Physical Fitness: Physical fitness is the ability to carry out daily tasks with vigor and alertness without undue fatigue and with enough energy to enjoy leisure-time pursuits and meet emergency demands. It is a result of regular physical activity, proper nutrition, and adequate rest.
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