What does exercise physiology primarily focus on?

Exercise physiology primarily focuses on the understanding of how physical activity impacts the body's functions, particularly at the cellular and systemic levels. This field examines various physiological responses to exercise, including cardiovascular, muscular, and metabolic changes, allowing for an in-depth analysis of how and why physical fitness improves overall health. It also investigates the adaptations that occur as a result of training and the performance applications of these physiological principles.

In essence, exercise physiology bridges the gap between physical fitness and the body's capabilities, making it essential for developing effective training programs and improving athletic performance. The emphasis is on understanding how exercise influences physical health and wellness, which aligns closely with the concept of physical fitness as a whole.