Upper level: b749 Muscle functions, other specified and unspecified
Functions related to sustaining muscle contraction for the required period of time.
Inclusions: functions associated with sustaining muscle contraction for isolated muscles and muscle groups, and all muscles of the body; impairments such as in myasthenia gravis
Exclusions: exercise tolerance functions (b455); muscle power functions (b730); muscle tone functions (b735)
Lower livel: