| PA | physical activity |
| MVPA | moderate-to-vigorous physical activity |
| TSHA | the Toledo study for healthy aging |
| DXA | dual energy X-ray absorptiometry |
| FTS | the frailty trait scale |
| ST | sedentary time |
| SMI | skeletal muscle index |
| FI | fat index |
| SPPB | the short physical performance battery (SPPB) |
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