What is a risk associated with immobilization related to strength?

The correct answer highlights a significant physiological response to immobilization, particularly concerning muscle strength. When a body part is immobilized, such as during recovery from an injury or surgery, the muscles surrounding that area do not engage in regular movement or contractions. This disuse leads to atrophy or a reduction in muscle mass and strength. Research indicates that noticeable decreases in muscle strength can occur as quickly as 72 hours after immobilization begins. This rapid decline emphasizes the importance of early mobilization and rehabilitation strategies to prevent strength loss.

In contrast, the other options do not accurately reflect the consequences of immobilization. Increased flexibility typically requires active movement and stretching, which does not occur during immobilization. Strengthening and muscle hypertrophy both depend on regular muscle use and resistance training, which are absent in immobilized muscles. Therefore, recognizing that decreased strength occurs shortly after immobilization underscores the need for careful management and rehabilitation in clinical settings.