Table 2.
Association Between Adiposity and Walking Endurance
| Weight | BMI | BMI Classifications | Percent Fat Mass | |
|---|---|---|---|---|
| β (p) | β (p) | β (p) | β (p) | |
| Age 60–69 y (n = 213) | ||||
| Age, y | 3.8 (<.001) | 3.9 (<.001) | 4.0 (<.001) | 3.3 (<.001) |
| Female | 22.1 (<.001) | 28.2 (<.001) | 27.3 (<.001) | −2.3 (.69) |
| Black | 6.6 (.09) | 6.8 (.08) | 9.0 (.02) | 9.2 (.01) |
| Weight, kg | 1.0 (<.001) | — | — | — |
| BMI, kg/m2 | — | 2.8 (<.001) | — | — |
| BMI classifications | ||||
| Normal, 18.5–24.5 | — | — | Reference | — |
| Overweight, 25–29.5 | — | — | 9.6 (.03) | — |
| Obese, ≥30 | — | — | 30.7 (<.001) | — |
| Fat mass, % | — | — | — | 2.0 (<.001) |
| Age 70–79 y, (n = 193) | ||||
| Age, y | 3.2 (<.001) | 3.3 (<.001) | 3.0 (<.001) | 2.6 (.002) |
| Female | 21.1 (.002) | 26.7 (<.001) | 26.4 (<.001) | −5.6 (.42) |
| Black | 7.6 (.16) | 6.5 (.23) | 7.7 (.16) | 10.6 (.05) |
| Weight, kg | 1.2 (<.001) | — | — | — |
| BMI, kg/m2 | — | 3.6 (<.001) | — | — |
| BMI classifications | ||||
| Normal, 18.5–24.9 | — | — | Reference | — |
| Overweight, 25–29.9 | — | — | 17.2 (.002) | — |
| Obese, ≥30 | — | — | 35.3 (<.001) | — |
| Fat mass, % | — | — | — | 2.0 (<.001) |
Notes: BMI = body mass index. Regression equations were performed individually for each adiposity-age group combination. All equations were adjusted for age, sex, race (black vs nonblack), height (only for weight and percent fat mass), and physical activity.