True or False: Repetitive motions can lead to cumulative effects on muscles and joints.

Repetitive motions can indeed lead to cumulative effects on muscles and joints, making this statement true. When individuals perform the same motion repeatedly over time, it can stress specific muscles and joints, potentially leading to conditions such as tendonitis, bursitis, and carpal tunnel syndrome. This is because the constant strain can result in micro-tears in the muscles and tendons, inflammation, and overall fatigue, which may increase the risk of injuries.

The cumulative effects are not limited to age or training level; rather, anyone who engages in repetitive tasks—whether in a workplace setting or during leisure activities—can be impacted. Therefore, it's essential to practice good ergonomics, incorporate breaks, and vary movements to help mitigate these risks.