[Relationships between body build, overweight and energy exchange in standardized bicycle erogometer test]

Of 70 healthy probands, among them 28 males and 18 females with moderate to large overweight, by means of indirect calorimetry were determined energy exchange and respiratory quotient in rest as well as with 60 and 95 watt bicycle ergometer load. Furthermore, from body-weight, height and 4 measures of skinfolds relative weight, body surface, fat content of the body and lean body mass were calculated. Energy exchange of obese persons in rest and during work were significantly increased, compared with the control groups the differences decreased with increasing size of load. As to the two degrees of watt in males and females resulted ascertained positive relations between oxygen consumption and all anthropometric sized investigated (correlation coefficient between 0.79 and 0.43). As basis for the calculation for the prognosis of the energy requirement of obese persons the degrees of overweight and absolute body weight appear particularly suitable.