title: Heart rate during bicycle ergometer exercise in Watts per kilogram body weight of 12 and 13 year old boys.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000704:Analysis of Variance; D001835:Body Weight; D002648:Child; D003201:Computers; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D008297:Male