Rapid dynamic training: challenging the limits to sprint performance

The search for more running speed had brought an abundance of training methods and combinations thereof. However, the benefit to sprint improvement of these methods does not compare favourably against the value of sprint training itself for which sprint running has the exact specificity. The rapid dynamic training exercise in this experiment is intended to isolate the muscles that contract rapidly when sprinting. EMG analysis of the vastus lateralis muscle during the exercise revealed an average muscle activation time of between 100 and 110 milliseconds. This method of exercise allows those muscles that can activate in a short time frame, as would be applicable to sprinting, to be developed progressively. Therefore, the specific muscles required for sprinting can be developed preferentially.