What role does warm-up play in flexibility training?

Warm-up plays a crucial role in flexibility training primarily by decreasing the risk of muscle injuries. Engaging in a proper warm-up increases blood flow to the muscles, raises the body temperature, and enhances muscle elasticity. This physiological preparation can make the muscles more pliable and responsive, which allows for more effective stretching and movement.

When muscles are warmed up, they are less likely to become strained or pulled during physical activity. Additionally, a thorough warm-up can help the nervous system prepare for the demands of exercise, improving coordination and reaction times. This is essential in flexibility training where muscle groups are subjected to stretching.

The other choices do not accurately reflect the benefits of a warm-up in this context. While warm-ups may lead to greater flexibility by preparing tissues for stretching, they certainly do not reduce flexibility gains or prevent muscle fatigue directly; rather, they aim to enhance functionality and reduce the overall risk of injury. Thus, the statement that warm-ups decrease muscle injury risk stands as the most appropriate answer in recognizing their importance in flexibility training.