Table 1.
Comparisons of vertical jump heights and sprint times on both sand and hard surfaces over the distinct resting times.
| Effect Sizes (95% Confidence Intervals) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pre | 7-min | 15-min | CV (%) | ICC | Pre vs. 7- min | Pre vs. 15- min | 7-min vs. 15-min | ||
| CMJ (cm) | Sand | 56.4±7.4 | 56.6±7.1 | 56.1±7.0 | 1.41 | 0.99 | 0.03 (-0.77;0.83) |
0.03 (-0.77;0.83) |
0.06 (-0.74;0.86) |
| Hard | 56.2±6.9 | 56.9±7.0 | 57.2±6.6 | 1.67 | 0.98 | 0.08 (-0.72;0.88) |
0.12 (-0.69;0.91) |
0.03 (-0.77;0.83) |
|
| 10-m (s) | Sand | 1.62±0.05 | 1.62±0.05 | 1.62±0.06 | 0.77 | 0.95 | 0.06 (-0.78;0.89) |
0.01 (-0.84;0.84) |
0.06 (-0.78;0.89) |
| Hard | 1.61±0.05 | 1.63±0.05 | 1.62±0.05 | 0.97 | 0.97 | 0.44 (-0.42;1.27) |
0.25 (-0.62;1.10) |
0.19 (-0.68;1.04) |
|
| 40-m (s) | Sand | 4.88±0.18 | 4.92±0.20 | 4.90±0.18 | 0.52 | 0.99 | 0.20 (-0.64;1.03) |
0.08 (-0.76;0.91) |
0.12 (-0.72;0.96) |
| Hard | 4.84±0.15 | 4.91±0.18 | 4.86±0.18 | 0.73 | 0.98 | 0.37 (-0.49;1.20) |
0.10 (-0.76;0.96) |
0.23 (-0.63;1.08) |
|
| 60-m (s) | Sand | 6.93±0.27 | 6.98±0.30 | 6.94±0.27 | 0.48 | 0.99 | 0.17 (-0.67;1.00) |
0.03 (-0.80;0.87) |
0.13 (-0.71;0.97) |
| Hard | 6.86±0.23 | 6.95±0.27 | 6.88±0.27 | 0.63 | 0.99 | 0.30 (-0.55;1.13) |
0.08 (-0.78;0.93) |
0.21 (-0.66;1.06) |
|
CMJ: countermovement jump; CV: coefficient of variation; ICC: Intraclass correlation coefficient.