Table 6. Kinematic parameters (angles in chosen joints and acceleration of the hand) - Means, Standard Deviations (SDs), Coefficients of Variation (CVs) and p value from the Fisher’s exact test (significant differences between TF1 and TF 2) in particular events during the topspin forehand, task 2 (TF2) – exemplary player 2.
|
TF1 |
| Ready |
Backswing |
Contact |
Forward |
| Mean(SD) |
CV(%) |
Mean(SD) |
CV(%) |
Mean(SD) |
CV(%) |
Mean(SD) |
CV(%) |
| LumbRot |
-30.7p<0.01(2.1) |
7 |
-27.4p<0.01(1.5) |
5 |
-30.4p<0.01(4.2) |
14 |
-35.6(2.4) |
7 |
| LumbFlex |
9.7p=0.02(2.7) |
27 |
25.1p=0.01(1.2) |
5 |
1.5(1.8) |
117 |
-2.5(2.1) |
84 |
| LumbLat |
-2.5p<0.01(2.2) |
86 |
4.2p<0.01(1.3) |
32 |
9.4p=0.01(2.1) |
22 |
-1.1(1.2) |
105 |
| ChestRot |
5.3(3.9) |
73 |
19.6(2.8) |
14 |
19.9p=0.04(2.4) |
12 |
13.6(4.3) |
31 |
| ChestFlex |
4.1(1.5) |
36 |
7.1(1.0) |
14 |
-3.3p<0.01(1.9) |
56 |
-2.3(2.1) |
91 |
| ChestLat |
7.2(2.0) |
27 |
16.5(2.0) |
12 |
15.2(3.5) |
23 |
0.8(1.4) |
176 |
| LeftHipFlex |
24.2p=0.02(4.7) |
19 |
6.6(3.3) |
50 |
31.5(5.1) |
16 |
25.7(5.1) |
20 |
| LeftHipAbd |
29.7(1.6) |
5 |
33.4(3.6) |
11 |
36.4(2.3) |
6 |
33.8p=0.04(2.8) |
8 |
| LeftHipRot |
34.9(6.8) |
20 |
50.4p<0.01(4.1) |
8 |
1.2p=0.03(5.5) |
447 |
3.5(7.1) |
202 |
| LeftKneeFlex |
49.2p=0.04(4.4) |
9 |
84.2(4.9) |
6 |
62.2(5.0) |
8 |
39.5(7.0) |
18 |
| RightHipFlex |
42.3p=0.03(6.7) |
16 |
67.8p<0.01(3.4) |
5 |
28.8p=0.03(3.7) |
13 |
24.3(2.9) |
12 |
| RightHipAbd |
-11.9(3.7) |
31 |
-35.4(2.0) |
6 |
-5.1(1.8) |
36 |
-3.3(1.8) |
56 |
| RightHipRot |
-37.9(3.5) |
9 |
-49.4(3.9) |
8 |
-23.5(4.5) |
19 |
-17.8(4.2) |
24 |
| RightKneeFlex |
42.8(9.0) |
21 |
84.3(2.9) |
3 |
65.1p<0.01(5.7) |
9 |
51.5p=0.05(5.4) |
11 |
| ShExtRot |
-68.8(18.2) |
26 |
-20.6p<0.01(6.2) |
30 |
-28.7p<0.01(15.5) |
54 |
-28.4p=0.05(13.0) |
46 |
| ShFlex |
16.8p<0.01(6.2) |
37 |
-11.6(3.6) |
31 |
41.0p=0.04(9.5) |
23 |
87.6p<0.01(5.0) |
6 |
| ShAbd |
11.3(3.3) |
29 |
32.6p<0.01(2.9) |
9 |
32.5(7.3) |
22 |
77.1p=0.01(37.9) |
49 |
| ElFlex |
80.4(6.4) |
8 |
57.9p<0.01(7.5) |
13 |
71.7p=0.01(6.8) |
9 |
104.9p<0.01(13.9) |
13 |
| WrExtensio |
36.7p<0.01(16.3) |
44 |
26.4p<0.01(5.6) |
21 |
35.5p<0.01(22.3) |
63 |
-4.8(8.7) |
181 |
| WrRad |
2.8(4.9) |
176 |
1.5p=0.02(8.5) |
569 |
-12.6p=0.01(10.2) |
81 |
-32.0p=0.04(13.5) |
42 |
| WrSup |
20.5p<0.01(5.3) |
26 |
-2.6(13.1) |
503 |
29.6(14.6) |
49 |
4.3(9.2) |
215 |
| ACC(m/s2) |
|
|
|
|
164.6p<0.01(14.4) |
9 |
|
|
Lumb – lumbar segment, Sh – shoulder, El – elbow, Wr – wrist, Rot – rotation, flex – flexion, Lat – lateral bend, Abd – abduction, ExtRot – external rotation, Rad – radial deviation, Sup – supination, bold font – significant difference with p≤0.05, bold font underlined with a single line – medium value of CV, bold font underlined with two lines – small value of CV.
