Effects of posture and respiration on body surface electrocardiogram.
D000328:Adult; D001830:Body Surface Area; D004562:Electrocardiography / Q000379:methods; D005260:Female; D005652:Functional Residual Capacity; D006801:Humans; D008297:Male; D008875:Middle Aged; D011187:Posture; D012115:Residual Volume; D012119:Respiration; D014109:Total Lung Capacity; D014636:Valsalva Maneuver