Table 2. Integral values of voltages in EMG during each phase in pitching.
|
|
|
Integral values of voltages (Volt) |
|
|
Style |
No. of pitch* |
Portion of serratus anterior |
Windup - arm cocking |
Arm acceleration |
Arm deceleration - follow-through |
Overhand |
1 |
upper |
117.3 |
41.9 |
361.1 |
|
2 |
upper |
110.2 |
46.2 |
263.2 |
|
1 |
middle |
217.6 |
108.1 |
69.7 |
|
2 |
middle |
231.3 |
96.7 |
113.8 |
|
1 |
lower |
157.6 |
135.5 |
66.9 |
|
2 |
lower |
155.9 |
134.9 |
78.2 |
Sidearm |
1 |
upper |
103.9 |
36.7 |
327.1 |
|
2 |
upper |
143.6 |
31.8 |
295.0 |
|
1 |
middle |
138.7 |
83.7 |
136.8 |
|
2 |
middle |
217.0 |
95.5 |
145.6 |
|
1 |
lower |
103.2 |
74.7 |
63.7 |
|
2 |
lower |
148.0 |
98.1 |
72.1 |
*Two pitches in each style were available for the EMG study.