Table 3. Mean (±Standard Error) muscle activation (%) in reference with muscle activation for racket A (100%) during the downward acceleration phase.
Downward acceleration Upward acceleration Follow-through
A B C A B C A B C
Pectoralis Major 100.00 132.4
(130.3)		 153.7
(87.6)		 144.3
(63.8)		 116.3
(28.6)		 146.9
(110.2)		 62.3
(55.7)		 92.6
((53.5)		 93.5
(47.7)
Latissimus Dorsi 100.00 149.4
(150.8)		 148.9
(90.5)		 205.7*† 
((180.7)		 207.6
(154.8)		 250.3
(192.8)		 78.8
(26.7)		 155.0
(143.2)		 102.5
(55.9)
Upper Trapezius 100.00 250.4
(497.2)		 293.2
(474.5)		 247.3
(178.3)		 265.8
(176.6)		 296.1
(232.3)		 508.6
(549.4)		 587.8
(610.5)		 612.7
(562.1)
Middle deltoid 100.00 128.7
(214.9)		 147.3
(210.0)		 453.9
(481.7)		 469.2
(451.5)		 462.0
(572.2)		 556.7
(560.4)		 669.7
(619.1)		 680.9
(684.1)
Biceps Brachii 100.00 132.8
(228.0)		 159.6
(172.8)		 429.5
(564.5)		 288.5
(188.6)		 600.1
(637.0)		 391.8† 
(322.6) 		587.6
(287.6)		 640.6
(439.4)
Triceps Brachii 100.00 79.8
(35.3)		 78.1
(28.3)		 222.9
(154.1)		 244.7
(188.5)		 228.5
(165.6)		 113.1
(85.3)		 178.1
(218.8)		 98.8
(69.9)
* Post hoc comparison between A and B rackets†  Post hoc comparison between A and C rackets, with p ≤ 0.05 Standard Error were not reported for reference values