Table 2.
Association of physical performance with mitochondrial function
| Variables | β (95% Confidence Interval) | Adjusted P Value | |
|---|---|---|---|
| Unadjusted, n=57 | Adjusted, n=57 | ||
| 6MWT, m | −0.08 (−0.11 to −0.05) | −0.06 (−0.10 to −0.02) | 0.004 |
| Maximal Static Voluntary Contraction, N | −0.10 (−0.15 to −0.05) | −0.05 (−0.13 to 0.03) | 0.22 |
| Age, yr | 0.13 (−0.13 to 0.39) | 0.32 | |
| BMI, kg/m2 | −0.51 (−1.20 to 0.18 | 0.15 | |
| Sex, women | 2.92 (−5.37 to 11.20) | 0.48 | |
| Race, white | −4.76 (−11.81 to 2.30) | 0.18 | |
Mitochondrial function (dependent variable) was measured using the τ time constant (in seconds). Each 1-m increase in the 6-minute walk test (6MWT) was negatively associated with 0.08 s less in the τ time constant. BMI, body mass index.