Correct Response: D. One of the best ways to avoid injury during fitness training is to create and maintain muscle balance. If one group in a set of antagonist muscles is able to overpower another, it can torque and pull joints out of alignment. Static stretching is an important and effective part of a cool down, helping to keep blood circulating back to the heart and loosening muscles that have been worked (A). Good training practice involves alternating the muscle groups that are worked on subsequent days (B) and allowing muscles that have been worked to rest and recover between workouts (C).
