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.