Table 2.
Kinematic and spatiotemporal characteristics of the run-up and take-off for SU and UN attempts.
| Variable | Mean ± SD | % diff (Cohen's d) |
P1 % diff |
P2 % diff |
P3 % diff |
P4 % diff |
P5 % diff |
P6 % diff |
P7 % diff |
|
|---|---|---|---|---|---|---|---|---|---|---|
| Step to bar angle (°) | SU | 28.70 ± 8.20 | −6.39 ± 9.36% (d = 0.184) |
−1.18 | −9.72 | −8.56 | −16.46 | −16.60 | 9.61 | −1.79 |
| UN | 27.10 ± 9.18 | |||||||||
| Step 3 length (m) | SU | 2.02 ± 0.24 | 0.01 ± 3.86% (d = 0.015) |
−5.14 | 5.49 | 1.39 | 0.35 | 3.72 | −3.18 | −2.58 |
| UN | 2.02 ± 0.22 | |||||||||
| Step 2 length (m) | SU | 2.18 ± 0.22 | −1.56 ± 4.11% (d = 0.165) |
−1.00 | 5.23 | −4.58 | −2.64 | −4.71 | −5.76 | 2.53 |
| UN | 2.14 ± 0.21 | |||||||||
| Step 1 length (m) | SU | 1.97 ± 0.13 | −2.53 ± 3.16% (d = 0.341) |
−5.31 | 3.42 | −3.42 | −2.76 | −1.06 | −2.36 | −6.24 |
| UN | 1.92 ± 0.16 | |||||||||
| Take-off distance (m) | SU | 1.13 ± 0.17 | 6.39 ± 8.11% (d = 0.410) |
13.77 | 12.22 | −0.55 | 7.83 | 14.80 | 3.58 | −6.94 |
| UN | 1.20 ± 0.17a | |||||||||
| Contact 4 duration (s) | SU | 0.15 ± 0.01 | 6.24 ± 3.21% (d = 0.847) |
6.25 | - | 3.57 | 10.00 | 10.34 | 3.57 | 3.70 |
| UN | 0.15 ± 0.01a | |||||||||
| Contact 3 duration (s) | SU | 0.14 ± 0.01 | −0.55 ± 8.13% (d = 0.060) |
6.67 | −3.45 | −11.54 | −6.90 | 11.54 | −3.85 | 3.70 |
| UN | 0.14 ± 0.01 | |||||||||
| Contact 2 duration (s) | SU | 0.14 ± 0.02 | 3.68 ± 8.45% (d = 0.223) |
−2.86 | 7.69 | 17.39 | 7.69 | −3.57 | −6.67 | 6.06 |
| UN | 0.15 ± 0.02 | |||||||||
| Contact 1 duration (s) | SU | 0.17 ± 0.01 | 5.09 ± 3.30% (d = 0.835) |
5.88 | 2.94 | 2.70 | 6.25 | 2.86 | 3.23 | 11.76 |
| UN | 0.18 ± 0.01b | |||||||||
| Flight 3 duration (s) | SU | 0.10 ± 0.03 | −8.71 ± 11.62% (d = 0.259) |
−10.00 | −14.29 | −21.43 | 4.7 | −16.67 | 10.00 | −13.33 |
| UN | 0.09 ± 0.03 | |||||||||
| Flight 2 duration (s) | SU | 0.13 ± 0.02 | 0.44 ± 5.25% (d = 0.000) |
8.70 | −4.00 | 4.00 | −3.33 | −3.03 | −4.00 | 4.76 |
| UN | 0.13 ± 0.02 | |||||||||
| Flight 1 duration (s) | SU | 0.05 ± 0.01 | −18.83 ± 15.39% (d = 0.847) |
−33.33 | 9.09 | −27.27 | −14.29 | −14.29 | −15.38 | −36.36 |
| UN | 0.04 ± 0.01a | |||||||||
| FT:CT ratio | SU | 0.31 ± 0.08 | −22.48 ± 16.09% (d = 0.917) |
−37.05 | 5.97 | −29.19 | −19.33 | −16.67 | −18.03 | −43.06 |
| UN | 0.24 ± 0.08a | |||||||||
| Duration of knee flexion (s) | SU | 0.10 ± 0.02 | −3.14 ± 18.48% (d = 0.166) |
0.00 | 0.00 | 0.00 | −40.00 | −10.53 | 14.29 | 14.29 |
| UN | 0.10 ± 0.02 | |||||||||
| Duration of knee extension (s) | SU | 0.07 ± 0.01 | 19.37 ± 29.21% (d = 0.826) |
14.29 | 8.33 | 9.09 | 83.33 | 18.75 | −5.88 | 7.69 |
| UN | 0.08 ± 0.02 | |||||||||
| Anteroposterior CM velocity at TD (m/s) | SU | 5.31 ± 0.56 | 6.25 ± 5.04% (d = 0.015) |
−2.57 | −14.20 | −8.39 | −0.58 | −10.95 | −4.59 | −2.47 |
| UN | 4.98 ± 0.61a | |||||||||
| Mediolateral CM velocity at TD (m/s) | SU | 5.48 ± 0.73 | 1.42 ± 7.97% (d = 0.069) |
15.61 | 0.77 | −4.07 | 0.74 | −10.16 | 5.26 | 1.78 |
| UN | 5.53 ± 0.60 | |||||||||
| Horizontal CM velocity at TD (m/s) | SU | 7.67 ± 0.32 | −1.90 ± 5.40% (d = 0.483) |
3.64 | −4.29 | −6.50 | 3.96 | −9.44 | 0.28 | 0.15 |
| UN | 7.52 ± 0.32 | |||||||||
| Vertical CM velocity at TD (m/s) | SU | −0.44 ± 0.27 | −65.63 ± 216.30% (d = 0.007) |
−11.23 | 86.76 | −15.36 | 20.08 | 8.63 | −550.00 | 1.67 |
| UN | −0.44 ± 0.29 | |||||||||
| Anteroposterior CM velocity at TO (m/s) | SU | 2.67 ± 0.44 | 6.03 ± 10.34% (d = 0.332) |
−7.72 | 9.07 | 3.13 | 19.38 | 10.26 | 14.80 | −6.69 |
| UN | 2.83 ± 0.56 | |||||||||
| Mediolateral CM velocity at TO (m/s) | SU | 3.35 ± 0.38 | −7.63 ± 13.51% (d = 0.544) |
−10.33 | −2.16 | −15.67 | 3.02 | −31.56 | −6.60 | 9.87 |
| UN | 3.09 ± 0.56 | |||||||||
| Horizontal CM velocity at TO (m/s) | SU | 4.30 ± 0.39 | −1.33 ± 7.52% (d = 0.153) |
−9.27 | 0.060 | −5.80 | 8.41 | −11.31 | 4.10 | 4.00 |
| UN | 4.24 ± 0.45 | |||||||||
| Vertical CM velocity at TO (m/s) | SU | 4.62 ± 0.19 | −3.30 ± 8.82% (d = 0.576) |
−13.30 | −4.79 | −14.10 | −4.89 | −0.51 | 7.72 | 7.49 |
| UN | 4.46 ± 0.33 | |||||||||
| Δ horizontal CM velocity (%) | SU | −43.93 ± 4.64 | −0.31 ± 8.54% (d = 0.042) |
17.60 | −6.16 | −1.04 | −5.93 | 2.58 | −5.90 | −3.38 |
| UN | −43.65 ± 5.11 | |||||||||
| Take-off angle (°) | SU | 47.11 ± 2.71 | −1.26 ± 5.29% (d = 0.176) |
−2.69 | −3.40 | −5.82 | −8.10 | 7.29 | 2.14 | 1.72 |
| UN | 46.52 ± 3.83 |
The percentage differences between SU and UN are displayed for the combined sample (mean ± SD) and individual participants (P1–P7). Step 3 is the third step before take-off, and Contact 1 is take-off.
Significantly different from SU (p < 0.05).
Significantly different from SU (p < 0.01).