What is the primary benefit of dynamic stretching prior to exercise?

The primary benefit of dynamic stretching prior to exercise is enhanced blood flow and flexibility. Dynamic stretching involves active movements that take the muscles and joints through their range of motion, which increases blood circulation to the muscles. This heightened blood flow warms up the muscles, making them more pliable and prepared for the activity ahead. Additionally, dynamic stretching promotes flexibility by stretching the muscles while they are being used, which can help improve overall performance during exercise.

While other options like increased muscle size, improved strength, and reduced risk of injury may be associated with a well-rounded fitness routine, they are not the primary focus of dynamic stretching. Increased muscle size is more related to resistance training, and improved strength would come from specific strength training exercises. Reduced risk of injury can be a positive outcome of a proper warm-up routine, but the immediate effect of dynamic stretching is primarily about preparing the body for movement through enhanced blood flow and flexibility.