Table 2.
Participant body composition characteristics, physical activity, and physical function.
| Older adults, normal physical activity (O) | Trained older adults (TO) | Physically impaired older adults (IO) | |
|---|---|---|---|
| N | 17 | 19 | 6 |
| Gender F/Ma | 8/9 | 8/11 | 3/3 |
| Age (years) | 71 (4)b | 68 (2)c | 71 (5)b,c |
| BMI (kg m−2) | 25.8 (3.3)b | 23.6 (1.9)c | 27.0 (2.3)b |
| Body weight (kg) | 74.0 (11.9) | 68.3 (8.8) | 79.0 (7.2) |
| Fat mass (%) | 33.1 (9.2) | 26.2 (7.7)c | 37.4 (9.0)b |
| Fat mass (kg) | 24.5 (7.9)b | 17.6 (7.1)c | 29.4 (7.9)b |
| Fat-free mass (kg) | 49.5 (10.8) | 50.7 (9.7) | 49.6 (10.8) |
| Steps/day | 9983 (2781) | 13,815 (5934)c | 6608 (1765)b |
| HPA time (% of wake time) | 2.2 (1.2)b | 5.3 (3.9)c | 1.0 (0.6)b |
| LPA time (% of wake time) | 11.7 (2.6)b | 10.8 (2.9) | 8.3 (1.5)c |
| SPPB 4 m walk speed (m s−1) | 1.1 (0.2) | 1.3 (0.2)b | 1.0 (0.3)c |
| SPPB Chair-stand test (s) | 10.1 (1.4) | 9.0 (2.1)b | 13.30 (4.8)c |
Values are presented as mean (SD). Age and HPA time were analyzed by two-sided Kruskal-Wallis tests followed by Bonferroni correction; other data were analyzed by one-way ANOVA with Tukey’s post-hoc test.
BMI body mass index, HPA high-intensity physical activity, LPA low-intensity physical activity, SPPB short physical performance battery.
aSex distribution across groups was tested by χ2 tests (p = 0.982).
b,cGroups that do not share the same letter are significantly different from each other (p < 0.05).