TABLE 3.
Five-year changes in midthigh composition and muscle function of Health, Aging, and Body Composition (Health ABC) participants by sex group1
| Men (n =
813) |
Women (n =
865) |
|||||
| Change | Percentage change | P value2 | Change | Percentage change | P value2 | |
| Total thigh muscle area (cm2) | −6.8 ± 10.0 | −4.9 ± 7.4 | <0.001 | −3.2 ± 7.6 | −3.2 ± 7.9 | <0.001 |
| Average maximal muscle torque (N-m) | −24.5 ± 28.1 | −16.1 ± 20.6 | <0.001 | −12.7 ± 17.5 | −13.4 ± 23.0 | <0.001 |
| Muscle quality (N-m/cm2)3 | −0.32 ± 0.41 | −13.1 ± 20.4 | <0.001 | −0.26 ± 0.37 | −11.1 ± 23.8 | <0.001 |
| Subcutaneous fat (cm2) | −0.8 ± 9.1 | −1.5 ± 19.8 | 0.020 | −3.2 ± 16.6 | −2.1 ± 16.9 | <0.001 |
| Intermuscular fat (cm2) | 3.1 ± 3.1 | 48.5 ± 59.6 | <0.001 | 1.7 ± 3.0 | 29.0 ± 43.6 | <0.001 |
1
All values are means ± SDs. N-m, Newton meters.
2
Derived by using paired-samples t tests.
3
Muscle quality = torque/quadriceps muscle area.