Table 1. Mean (± SD) 20 m sprint and circuit times overall and for each quarter, plus first and best sprint times of each quarter for the precooling (PC) and control (CONT) trials. |
|
|
Trial |
Cohen’s d Effect Size / Mean change (%) / 90 % confidence limits /Percentage chance that effect is beneficial (trivial/harmful) # |
|
|
PC |
CONT |
PC vs. CONT |
Overall Sprint Time (s) |
|
3.821 (.440) |
3.772 (.404) |
.12 / 1.3 / -.24, .48 / 7 (58/35) |
Quarter Sprint Time (s) |
1 |
3.744 (.335) |
3.744 (.306) |
.00 / .0 / -.50, .50 / 24 (52/24) |
|
2 |
3.849 (.455) |
3.797 (.418) |
.12 / 1.4 / -.29, .53 / 9 (54/37) |
|
3 |
3.860 (.523) |
3.794 (.486) |
.14 / 1.7 / -.18, .45 / 4 (60/36) |
|
4 |
3.829 (.475) |
3.753 (.484) |
.16 / 2.0 / -.19, .50 / 4 (55/41) |
First Sprint Time (s) |
1 |
3.680 (.328) |
3.753 (.457) |
.16 / 1.9 / -.74, .42 / 45 (40/14) |
|
2 |
3.794 (.453) |
3.821 (.390) |
.07 / .7 / -.07, .32 / 27 (61/12) |
|
3 |
3.784 (.469) |
3.778 (.482) |
.01 / .2 / -.28, .30 / 11 (76/13) |
|
4 |
3.835 (.559) |
3.772 (.559) |
.11 / 1.6 / -.35, .58 / 12 (51/37) |
Best Sprint Time (s) |
1 |
3.597 (.255) |
3.577 (.300) |
.07 / .6 / -.22, .35 / 6 (74/20) |
|
2 |
3.709 (.398) |
3.720 (.400) |
.03 / .3 / -.34, .28 / 17 (72/11) |
|
3 |
3.751 (.501) |
3.742 (.477) |
.02 / .2 / -.25, .29 / 9 (79/12) |
|
4 |
3.698 (.429) |
3.651 (.432) |
.11 / 1.3 / -.17, .39 / 4 (68/28) |
Overall Circuit Time (s) |
|
44.53 (4.21) |
44.05 (4.13) |
.12 / 1.1 / -.17, .40 / 4 (66/30) |
Quarter Circuit Time (s) |
1 |
44.67 (3.97) |
43.37 (3.25) |
.40 / 2.9 / .11, .68 / 0 (12/88) |
|
2 |
44.78 (4.24) |
44.40 (4.34) |
.09 / .8 / -.28, .46 / 9 (62/29) |
|
3 |
44.61 (4.51) |
44.29 (5.06) |
.06 / .7 / -.29, .42 / 10 (65/25) |
|
4 |
44.07 (4.88) |
44.16 (4.57) |
.02 / .2 / -.27, .23 / 11 (82/7) |
|
# Where the chance of benefit or harm were both calculated to be > 5%, the true effect was deemed unclear. < 1%, almost certainly not; <5%, very unlikely; <25%, unlikely/probably not; 25-75%, possibly/possibly not; >75%, likely/probably; >95%, very likely; >99%, almost certainly. |
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