Body mass index is a measurement of weight adjusted for height, calculated as: weight (kg)/height (m)2. LSAH reported body mass index measurements for LSAH participants at baseline. The mean values for the study group at baseline were 23.28 for the astronaut group and 23.34 for the comparison group.
The most recent physical examination for each study participant has been reviewed, and the group results show a slight increase in body mass index because of weight gain as study participants age. For this assessment, weight and height for each study participant, as reported on the last physical examination completed in the JSC Clinics, were used.
The mean body mass index for the most recent visit was 24.71 for the astronaut group and 24.37 for the comparison group. The change in weight over time for the comparison group is very similar to the change in weight for the astronaut group. Both groups show a small increase in mean weight since baseline.