Table 3.
Correlations between the SIST and SISTrel, jumps, strength, and sprint variables obtained after the assessments.
| Variables | SISTrel | SIST | ||||
|---|---|---|---|---|---|---|
| Correlations | p-Value | Description | Correlations | p-Value | Description | |
| CMJ (cm) | 0.211 | 0.373 | weak | −0.328 | 0.158 | weak |
| SJ (cm) | 0.284 | 0.225 | weak | −0.299 | 0.200 | weak |
| CMJ-PPrel (W·kg−1) | 0.290 | 0.214 | weak | −0.221 | 0.349 | weak |
| SJ-PPrel (W·kg−1) | 0.293 | 0.210 | weak | −0.281 | 0.231 | weak |
| 1RM-SQ (kg) | 0.210 | 0.930 | weak | 0.674 | <0.001 ** | moderate |
| 1RM-SQrel (kg·kg−1) | −0.039 | 0.870 | weak | −0.023 | 0.925 | weak |
| ISQTrel (N·kg−1) | −0.071 | 0.767 | weak | 0.349 | 0.122 | weak |
| ISQT (N) | −0.027 | 0.910 | weak | 0.681 | <0.001 ** | moderate |
| SISTrel (N·kg−1) | - | - | - | 0.453 | 0.045 * | moderate |
| SIST (N) | 0.453 | 0.045 * | moderate | - | - | - |
| L10% (kg) | 0.508 | 0.022 * | moderate | −0.302 | 0.195 | weak |
| L30% (kg) | 0.675 | <0.001 ** | moderate | −0.008 | 0.975 | weak |
| L50% (kg) | 0.645 | 0.002 ** | moderate | −0.021 | 0.930 | weak |
| VMax (m·s−1) | 0.049 | 0.838 | weak | −0.315 | 0.176 | weak |
| T 30 (s) | −0.120 | 0.613 | weak | 0.269 | 0.252 | weak |
| T 30 -20%BM (s) | 0.014 | 0.952 | weak | 0.358 | 0.121 | weak |
| T 30 -40%BM (s) | −0.046 | 0.848 | weak | 0.453 | 0.045 * | moderate |
| T 30 -60%BM (s) | −0.310 | 0.184 | weak | 0.239 | 0.310 | weak |
| T 30 -80%BM (s) | −0.037 | 0.877 | weak | 0.377 | 0.101 | weak |
* Correlation is significant at the 0.05 level; ** correlation is significant at the 0.01 level. BM: body mass; CMJ: countermovement jump; SJ: squat jump; PPrel: peak power relative to BM; 1RM-SQ: 1 RM estimated in the squat exercise; 1RM-SQrel: 1RM relative to BM; ISQTrel: isometric squat test relative to body mass; ISQT: isometric squat test; SISTrel: specific isometric strength test relative to BM; SIST: specific isometric strength test; L10%: load needed to reach a 10% velocity loss; L30%: load needed to reach a 30% velocity loss; L50%: load needed to reach a 50% velocity loss; Vmax: maximum velocity reached in the unloaded condition. T30: unresisted 30 m sprint times; T30-20BM: 30 m sprint times during sled towing with 20% BM; T30-40BM: 30 m sprint times during sled towing with 40% BM; T30-60BM: 30 m sprint times during sled towing with 60% BM; T30-80BM: 30 m sprint times during sled towing with 80% BM.