Flexibility is defined as the ability of limbs to move at the joints through a normal range of motion. Having reasonable joint flexibility is important in the reduction of risk of injury as well as for general body mobility. Loss of flexibility can lead to impaired movement and the inability to perform daily living functions. Loss of flexibility occurs as a natural part of the aging process or as the result of trauma, injury or surgery. Additionally, gender and genetics influence one's flexibility.
Women are generally more flexible and men are more muscular.
In order to maintain flexibility, the joints must be taken through their normal range of motion on a regular basis. Stretching is gaining popularity with the increasing aging population. Clients are seeking softer workouts to regain lost flexibility. The media's positive portrayal of stretching, including the strong interest in yoga and Pilate's inspired exercise, has increased awareness and influenced its popularity. Static stretching involves slowly stretching the muscles to the end point of movement and holding the stretch for a period of time.