Which of these is a key component of a personal health screening that assesses a person's musculoskeletal health?

The musculoskeletal system comprises the bones, joints, muscles, tendons, and ligaments that support and move the body. A health screening that targets musculoskeletal health therefore assesses how well these structures function. Flexibility and range of motion tests directly evaluate the condition of joints, muscles, and connective tissues by measuring how far a joint can move through its full arc of motion. Examples include the sit-and-reach test (hamstring and lower-back flexibility) and goniometer measurements of individual joints.

The other options assess different body systems:

• Blood pressure and heart rate are cardiovascular measurements that assess the health of the heart and blood vessels.
• Lung capacity tests (such as spirometry) measure pulmonary or respiratory function.
• Body Mass Index (BMI) is a ratio of weight to height used to screen for underweight, overweight, or obesity. It reflects body composition rather than the functional health of muscles and joints.