Table 1.
Participants anthropometric, body composition and strength characteristics in young and old adults.
| Young (N = 15) |
Old (N = 15) |
P value | Effect size | |
|---|---|---|---|---|
| Anthropometrics | ||||
| Age (years) | 25.1 ± 3.0 | 70.8 ± 5.4 | <0.001‡ | – |
| Height (cm) | 171.8 ± 7.0 | 167.9 ± 8.5 | 0.18 | – |
| Body mass (kg) | 72.3 ± 12.2 | 67.0 ± 12.3 | 0.25 | – |
| BMI (kg.m−2) | 24.4 ± 3.0 | 23.6 ± 3.5 | 0.54 | – |
| Knee extensor maximal and submaximal strength | ||||
| MVC (N·m) | 256 ± 72 | 137 ± 48 | <0.001‡ | 2.01 |
| KET/BM (N.m.kg−1) | 3.5 ± 0.7 | 2.1 ± 0.6 | <0.001‡ | 2.16 |
| EB 12-RM (kg) | 17 ± 3 | 12 ± 3 | 0.002⁎ | 1.25 |
| MN 12-RM (kg) | 17 ± 7 | 10 ± 4 | <0.001‡ | 1.54 |
| Body composition | ||||
| Whole body FFM (kg) | 55.6 ± 10.9 | 43.4 ± 9.4 | 0.06 | 0.71 |
| Whole body FM (kg) | 16.7 ± 5.1 | 20.9 ± 14.2 | 0.47 | 0.27 |
| Body fat (%) | 23.2 ± 6.6 | 27.3 ± 9.6 | 0.17 | 0.51 |
| Skeletal muscle mass (kg) | 27.4 ± 6.3 | 21.7 ± 5.2 | 0.01† | 0.91 |
BMI, Body Mass Index; MVC, Maximal Voluntary Contraction; KET/BM, Knee Extension Torque Relative to Body Mass; EB, Elastic Band, MN, Machine; FFM, Fat Free Mass; FM, Fat Mass; FFM = fat-free mass; FM = fat mass. Data presented as mean ± SD.
⁎
Significantly different from young (P < 0.05).
†
Significantly different from young (P < 0.01).
‡
Significantly different from young (P < 0.001).