Table 1: Descriptive analysis of indicators at the lead foot contact phase, arm cocking, arm acceleration, and ball release phases under fatigue and pre-fatigue conditions.

Lead Foot Contact Phase Pre-fatigue Fatigue
Mean SD Mean SD
Stride length height (cm)* 68.4 7.8 53.6 6.4
Shoulder abduction (º) 103.5 12.3 97.5 11.2
Shoulder external rotation (º) 99.1 17.7 94.1 16.9
Shoulder horizontal adduction (º) 25.5 1.34 23.9 1.25
Knee flexion (º) 130.2 20.3 128.5 19.6
Elbow flexion (º)* 82.7 11.6 70.7 10.2
Arm Cocking Phase
Maximum shoulder external rotation (º/s) 161.6 6.3 158.4 5.8
Maximum shoulder horizontal adduction (º/s)* 155.7 7.3 140.5 9.3
Maximum elbow flexion (º/s)
69.5
8.3
67.1 7.7
Maximum pelvis angular velocity (º/s)
622.4
70.6

613.6
71.5
Maximum upper torso angular velocity (º/s) 1224.5 111.3 1185.8 109.4
Arm Acceleration Phase
Shoulder abduction (º) 107.3 8,1 101.4 7.8
Maximum elbow extension rotation (º/s)* 2361.8 29.2 2021.4 24.3
Maximum shoulder internal rotation (º/s)* 2617.3 21.2 2134.7 26.7
Ball Release Phase
Knee flexion (º) 134.9 10.8 131.4 10.1
Forward trunk tilt (º) 39.7 5.5 35.1 5.1
Lateral trunk tilt (º)* 29.9 10.9 15.1 8.2
Angle elbow flexion (º) 140.3 19.1 136.6 18.4
Shoulder horizontal adduction (º) 56.5 5.8 54.5 5.4
Ball velocity (m·s−1) 18.7 1.5 12.1 1. 4

*Significantly differences p ≤ 0.05