What is the definition of physical activity?

The definition of physical activity is accurately described as any movement of the body using energy beyond baseline. This encompasses a broad range of activities, including everyday tasks like walking, household chores, and gardening, as well as more structured exercise sessions. The key component of this definition is that it emphasizes 'movement' and the expenditure of energy beyond what is typically exerted during resting or sedentary states.

In contrast to other answers, the mention of structured or purposeful activities in the second option narrows the definition of physical activity to a specific subset, which may not capture the full spectrum of what constitutes physical activity. The third option focuses exclusively on exercise for endurance, excluding many other forms of movement, while the fourth option confines physical activity to a relaxation method, overlooking its broader scope, which includes a variety of movements beneficial for overall health and wellness.