title: Circannual rhythm of exercise metabolic rate in humans.
abstract: Exercise metabolic rate was established by indirect calorimetry in 18 healthy subjects. Each subject was tested every month for 1 year. Four variables demonstrated a circannual rhythm and its acrophases occurred in the following months: RQ in October; exercise metabolic rate in April; acceleration of heart rate during exercise in February; percentage of body fat in August.
mesh_terms: D000273:Adipose Tissue / Q000033:anatomy & histology; D000328:Adult; D001835:Body Weight; D002153:Calorimetry, Indirect; D005260:Female; D006801:Humans; D008297:Male; D008660:Metabolism; D009929:Organ Size; D010507:Periodicity; D005082:Physical Exertion; D012621:Seasons