Table 1. General characteristics of the European and Chinese astronauts.
| Pre-flight | Post-flight | ||||||
|---|---|---|---|---|---|---|---|
| R+1 | R+4 | R+10 | |||||
| European astronaut | Age (years) | Length (mm) | Body weight (kg) | BMI (kg/m 2) | BMI (kg/m 2) | BMI (kg/m 2) | BMI (kg/m 2) |
| 1 | 45 | 185 | 90 | 26.3 | 25.4 | 26.0 | 26.3 |
| 2 | 41 | 181 | 64 | 19.5 | 17.7 | 18.6 | 19.5 |
| 3 | 40 | 180 | 68 | 21.0 | 20.1 | 20.4 | 21.0 |
| 4 | 40 | 182 | 81 | 24.5 | 23.8 | 24.2 | 24.5 |
| 5 | 40 | 175 | 81 | 27.1 | 26.1 | 26.7 | 27.1 |
| mean (SD) | 41 (2) | 180 (4) | 77 (11) | 23.7 (3.3) | 22.6 (3.6) # | 23.2 (3.5) # | 23.7 (3.3) |
| Chinese astronaut | Age (years) | Length (mm) | Body weight (kg) | BMI (kg/m 2) | BMI (kg/m 2) | BMI (kg/m 2) | BMI (kg/m 2) |
| 1 | 40 | 170 | 64 | 22.1 | 21.5 | 21.8 | 22.1 |
| 2 | 41 | 172 | 70 | 23.7 | 23.0 | 23.3 | 23.7 |
| 3 | 42 | 172 | 66 | 22.3 | 21.6 | 22.0 | 22.0 |
| 4 | 42 | 168 | 62 | 22.0 | 21.3 | 22.0 | 22.0 |
| 5 | 42 | 172 | 64 | 21.6 | 20.3 | 21.0 | 21.3 |
| mean (SD) | 41 (1) | 171 (2) * | 65 (3) * | 22.3 (0.8) | 21.5 (1.0) # | 22.0 (0.8) # | 22.2 (0.9) |
BMI (body mass index) = weight (kg) / height2 (m2); R+1 = the first day after landing, R+4 = the 4th day after landing, R+10 = the 10th day after landing;
* p < 0.05 compared to European astronauts.
# p< 0.05 compared to pre-flight baseline