title: No basic rest-activity cycle in head, wrist or ankle.
abstract: Kleitman's theory of a Basic Rest-Activity Cycle (BRAC) was tested by recording activity of the head, wrists, and left ankle from 10 healthy subjects. No 90-100 min rhythms in activity were found.
mesh_terms: D000328:Adult; D000842:Ankle; D005260:Female; D006257:Head; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D010507:Periodicity; D014953:Wrist