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Descriptive data of the SsG and RsG.
| Characteristics | SsG (n = 8) | RsG (n = 9) |
|---|---|---|
| Age (y) | 23.5 ± 2.8 | 22.7 ± 2.6 |
| Height (cm) | 168.9 ± 4.9 | 166.5 ± 4.1 |
| Body mass (kg) | 59.6 ± 11.3 | 58.2 ± 7.2 |
| Body mass index (kg/m2) | 20.7 ± 3.3 | 21.1 ± 2.6 |
SsG: sand surface group; RsG: rigid surface group.
