Table 5. 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 1 (TF1) – exemplary player 2.
|
TF1 |
| Ready |
Backswing |
Contact |
Forward |
| Mean(SD) |
CV(%) |
Mean(SD) |
CV(%) |
Mean(SD) |
CV(%) |
Mean(SD) |
CV(%) |
| LumbRot |
-10.8p<0.01(0.9) |
8 |
-4.6p<0.01(1.7) |
36 |
-7.5p<0.01(1.2) |
16 |
-15.7(1.0) |
6 |
| LumbFlex |
15.4p=0.02(1.7) |
11 |
20.5p=0.01(1.4) |
7 |
15.9(0.8) |
5 |
11.1(1.0) |
9 |
| LumbLat |
7.8p<0.01(0.9) |
12 |
11.5p<0.01(0.9) |
8 |
11.1p=0.01(0.7) |
6 |
3.1(0.5) |
17 |
| ChestRot |
0.4(2.2) |
516 |
8.7(1.7) |
20 |
8.7p=0.04(1.8) |
20 |
5.1(3.6) |
70 |
| ChestFlex |
-8.5(2.8) |
33 |
-15.3(3.0) |
20 |
-13.8(2.6) |
19 |
-7.2p<0.01(2.5) |
35 |
| ChestLat |
-1.3(2.0) |
156 |
9.9(1.8) |
18 |
9.4(2.4) |
26 |
-5.0(1.8) |
35 |
| LeftHipFlex |
36.2p=0.02(5.4) |
15 |
34.3(4.2) |
12 |
47.3(2.6) |
5 |
54.0(4.1) |
8 |
| LeftHipAbd |
24.7(1.3) |
5 |
32.1(1.9) |
6 |
27.5(1.6) |
6 |
22.4p=0.04(2.0) |
9 |
| LeftHipRot |
4.4(5.2) |
119 |
15.5p<0.01(4.1) |
26 |
-6.3p=0.03(3.8) |
60 |
-17.6(2.1) |
12 |
| LeftKneeFlex |
42.7p=0.04(7.4) |
17 |
73.0(4.4) |
6 |
73.6(2.6) |
4 |
58.4(6.7) |
11 |
| RightHipFlex |
48.9p=0.03(3.6) |
7 |
65.0p<0.01(3.4) |
5 |
53.6p=0.03(1.9) |
3 |
34.3(7.5) |
22 |
| RightHipAbd |
16.2(3.0) |
19 |
3.7(3.2) |
85 |
16.0(1.9) |
12 |
23.8(1.1) |
5 |
| RightHipRot |
-32.9(3.8) |
12 |
-52.5(4.2) |
8 |
-39.4(2.6) |
7 |
-16.2(5.8) |
36 |
| RightKneeFlex |
57.1(2.9) |
5 |
65.9(5.1) |
8 |
64.6p<0.01(5.1) |
8 |
57.9p=0.05(7.8) |
13 |
| ShExtRot |
-17.6(7.5) |
43 |
21.0p<0.01(11.2) |
53 |
44.2p<0.01(11.1) |
25 |
-18.9p=0.05(5.2) |
27 |
| ShFlex |
5.2p<0.01(11.8) |
227 |
-12.1(8.9) |
74 |
15.9p=0.04(3.1) |
20 |
72.4p<0.01(4.0) |
5 |
| ShAbd |
13.2(4.5) |
34 |
28.0p<0.01(6.2) |
22 |
23.2(4.3) |
19 |
28.1p=0.01(18.7) |
67 |
| ElFlex |
75.7(3.6) |
5 |
53.8p<0.01(2.1) |
4 |
68.5p=0.01(5.2) |
8 |
72.0p<0.01(3.9) |
5 |
| WrExtensio |
4.8p<0.01(6.6) |
138 |
15. p<0.01(4.3) |
28 |
21.1p<0.01(7.0) |
33 |
3.4(2.7) |
79 |
| WrRad |
-18.4(2.0) |
11 |
-25.4p=0.02(4.8) |
19 |
-32.3p=0.01(6.5) |
20 |
-26.6p=0.04(7.1) |
27 |
| WrSup |
-3.8p<0.01(7.3) |
194 |
-24.3(7.2) |
30 |
-23.5(5.3) |
23 |
-22.4(6.7) |
30 |
| ACC(m/s2) |
|
|
|
|
110.8p<0.01(10.9) |
10 |
|
|
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
