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.