Table 1. Fitted parameter values of the projection variables and kicking mechanics variables for the two participants. Data are means (± standard error).
| Variable |
Fit parameter |
Participant 1 |
Participant 2 |
|
symbol |
units |
(58 kicks) |
(25 kicks) |
| Projection velocity |
vmax |
m·s-1 |
26.9 (.2) |
24.2 (.2) |
|
θ¸max |
deg |
50 (2) |
41 (2) |
|
A |
(m·s-1)/deg2 |
.0017 (.0005) |
.0021 (.0007) |
|
r |
|
.51 |
.57 |
| Projection height |
lleg |
m |
.62 (.03) |
.57 (.05) |
|
hmin |
m |
.37 (.01) |
.28 (.02) |
|
r |
|
.94 |
.92 |
| Ball spin rate |
É·o |
deg·s-1 |
-4.5 (.4) |
-4.7 (5.7) |
|
B1 |
rev·s-1 |
.04 (.06) |
1.1 (4.9) |
|
B2 |
/deg |
.06 (.02) |
.02 (.04) |
|
r |
|
.79 |
.61 |
| Foot velocity |
vmax |
m·s-1 |
18.0 (.1) |
16.4 (.2) |
|
θ¸max |
deg |
44 (5) |
46 (3) |
|
A |
(m·s-1)/deg2 |
.0007 (.0003) |
.0013 (.0005) |
|
r |
|
.48 |
.49 |
| Horizontal hip velocity |
m |
(m·s-1)/deg |
-.022 (.004) |
.002 (.012) |
|
c |
m·s-1 |
2.6 (.2) |
2.0 (.5) |
|
r |
|
.56 |
.04 |
| Thigh rotational ROM |
m |
deg/deg |
.34 (.05) |
.01 (.07) |
|
c |
deg |
89 (2) |
78 (3) |
|
r |
|
.71 |
.04 |
| Shank angular velocity |
m |
(deg·s-1)/deg |
1.4 (.6) |
4.7 (1.2) |
|
c |
deg·s-1 |
1760 (30) |
1400 (50) |
|
r |
|
.30 |
.04 |
| Thigh angular velocity |
m |
(deg·s-1)/deg |
-.4 (.8) |
-1.1 (1.0) |
|
c |
deg·s-1 |
80 (50) |
150 (40) |
|
r |
|
.06 |
.23 |
| Knee angle |
m |
deg/deg |
.13 (.03) |
-.01 (.06) |
|
c |
deg |
50 (2) |
68 (3) |
|
r |
|
.47 |
.03 |
| Max thigh angular velocity |
m |
(deg·s-1)/deg |
-.1 (.9) |
-.8 (1.4) |
|
c |
deg·s-1 |
1160 (50) |
930 (60) |
|
r |
|
.02 |
.12 |
and are the gradient and -intercept of a linear fit to the data, and is the correlation coefficient.
