همکاری های عضلانی شبیه زمانی است که کودکان به طور معمول در حال توسعه در یک تردمیل در سرعت و دامنه های مختلف راه می روند

The high correlations between synergies across stages indicate that neuromuscular control strategies do not change as children walk at different speeds and slopes on a treadmill. However, the multiple significant differences in kinematics and kinetics between stages indicate real differences in movement pattern. This supports the theory that synergies are neurological in origin and not simply a response to the biomechanical task constraints.