Table 2. Selected physiological responses and maximal running speed reached at the end of the different 30-15 protocols. Data are means (±SD).
|
Group A |
Group B |
| 30-15IFT |
30-15IFT-LINE |
30-15IFT-CONT |
30-15IFT |
30-15IFT-28m |
| VIFT (km·h-1) |
19.7 (1.2) |
21.7 (1.9) * |
16.1 (1.0) *† |
18.8 (2.1) |
18.7 (1.8) |
| HRpeak(b·min-1) |
197 (10) |
197 (7) |
194 (8) |
198 (9) |
199 (9) |
| HR/speed |
3.9 (.8) |
3.4 (.6) |
5.8 (1.1) *† |
4.2 (1.0) |
3.9 (.8) § |
| [La]b (mmol·L-1) |
12.3 (2.5) |
11.3 (2.6) |
9.6 (3.2) *‡ |
11.3 (2.1) |
11.5 (2.8) |
| RPE |
9 (1) |
9 (1) |
8 (1) |
8 (1) |
8 (1) |
V : maximal running speed, HR : peak heart rate, [La]: blood lactate concentration, RPE : rating of perceived exertion, 30-15 : original 30-15, 30-15 : modified version of the 30-15 without a rest period, 30-15 : modified version of the 30-15 without change of direction, 30-15 : modified version of the 30-15 with 28-m shuttles.*: difference . 30-15 (p < 0.05)† : difference . 30-15 (p < 0.05)‡: difference . 30-15 with effect size considered as moderate (>0.5)§: difference . 30-15 with effect size considered as small (0.2
