A control system that appears to be self-regulating. Closed-loop systems employ feedback and a reference of correctness (norm or set point). Deviations from the norm are detected and corrections made in order to maintain a desired state in the system. Closed loop systems provide the homeostatic mechanism of many physiological functions (see negative feedback) and also control some movement patterns, where feedback from proprioceptors and other receptors play an important part. Compare open-loop system.
Subjects: Sports and Exercise Medicine.