title: Sympathetic activity in muscle nerves--a factor influencing the postural heart rate increase?
mesh_terms: D000293:Adolescent; D000328:Adult; D006339:Heart Rate; D006801:Humans; D008297:Male; D009132:Muscles / Q000294:innervation*; D011187:Posture; D013564:Sympathetic Nervous System / Q000502:physiology*