How does strength training benefit bone health?

Strength training benefits bone health primarily through enhancing calcium deposition and promoting bone remodeling. When performing resistance exercises, mechanical stress is placed on the bones, which signals the body to increase bone density. This process, known as bone remodeling, involves the resorption of old bone tissue and the formation of new bone tissue. As a result, stronger and denser bones are developed.

Additionally, strength training encourages the deposition of calcium in the bone matrix, which is crucial for maintaining strong and healthy bones. This added calcium not only supports bone structure but also plays a vital role in various physiological functions. Therefore, the combination of increased mechanical loading from strength training and the resulting physiological adaptations directly contributes to improved bone health.

The other options do not accurately describe how strength training affects bone health. Increasing muscle mass is indeed beneficial, but it is part of a broader process that involves bone density improvements, so it doesn't capture the complete picture. Decreasing physical activity would negatively impact bone health, and while reducing muscle fatigue can be a benefit of strength training, it does not have a direct correlation with bone health.