What is the primary hormone released during resistance training?

The primary hormone released during resistance training is testosterone. This hormone plays a crucial role in muscle repair and growth, promoting protein synthesis which is essential for muscle hypertrophy. Resistance training, characterized by activities like lifting weights, stimulates the endocrine system to enhance testosterone secretion.

Higher testosterone levels can improve muscle strength and enhance recovery from workouts, making it a vital hormone for individuals engaged in strength training. Although other hormones, such as adrenaline and cortisol, are also influenced by exercise, they have different roles—adrenaline primarily helps manage energy levels during intense workouts, while cortisol is involved in stress response and metabolism regulation. Insulin is more about regulating blood sugar levels rather than directly promoting muscle growth during resistance training. Therefore, testosterone stands out as the primary hormone associated with the anabolic effects crucial for muscle development in this context.