What modification to a flexibility training plan would maximize its physiological benefits?

Scheduling flexibility training after cardio workouts is the most effective modification to maximize physiological benefits. When flexibility training is conducted after aerobic exercise, the body is already warm from the elevated heart rate and increased blood flow. This increased warmth allows for greater elasticity in the muscles and connective tissues, which can enhance the effectiveness of stretching exercises. Warmer muscles are less prone to injury and can achieve a greater range of motion, leading to improved flexibility over time.

Additionally, conducting flexibility workouts at this point can serve as an effective cool-down, helping to gradually lower the heart rate and transition the body out of the more intense aerobic activity. This approach can also promote relaxation and reduce muscle tension that might be present after vigorous cardio sessions.