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Flexibility plays a critical role in fitness assessments because it assists in the overall range of motion in joints. A good range of motion is essential for performing daily activities and various exercises efficiently and safely. When joints can move freely, individuals can engage in physical activities with better form, which can enhance performance and reduce the risk of compensatory movements that may lead to injuries.

Additionally, flexibility contributes to the efficiency of movement patterns. For example, during workouts, adequate flexibility allows for full, correct execution of lifts or stretches, which is important for maximizing the benefits of the exercise and minimizing the risk of strain.

While flexibility can also have benefits in terms of injury prevention and muscle recovery, the most direct connection to fitness assessments is how it facilitates a full range of motion in joints, enabling individuals to perform movements more effectively. In fitness assessments, measurements of flexibility often indicate how well a person can move through functional ranges, reflecting their overall physical fitness level.