Specificity of interval training.
Training has a specific action in relation to lactic acid production during heavy muscular work.
The specificity is located in the muscles. Training specificity applies between sports, events within sports, and between precise skills, paces, and effort levels. It is the neuromuscular patterning which differentiates the different actions, intensities, and muscle fiber recruitment. Minor adjustments in technique in trained athletes produce a loss in efficiency. Thus, it is important to determine when and when not to change techniques because of the degrading effect upon performance.