Book and Media Reviews Section Editor: John L. Zeller, MD, PhD, Contributing Editor.
Physical fitness refers to a set of attributes a person has regarding the ability to perform physical activities that require aerobic fitness, endurance, strength, or musculotendinous flexibility.
It is determined by a combination of regular physical activity and genetically inherited ability.1 Physical activity refers to any bodily movement produced by skeletal muscles that results in an expenditure of energy, whereas exercise refers to physical activity that is planned or structured.1 In essence, physical activity or exercise is integral to playing sports, with sports participation having a unique added psychosocial dimension—an individual playing within a social context. The terms physical activity, exercise, and sports are often used interchangeably in sports medicine literature.
Patel DR. ACSM’s Primary Care Sports Medicine. JAMA. 2007;298(23):2796-2800. doi:10.1001/jama.298.23.2796