Abstract：
UNASSIGNED: Chen, P-T, Lin, Y-C, Chang, H-Y, Chiu, C-H, Chen, C-Y, Chen, P, and Lin, Y-H. Effects of shoulder corrective training program on pitching loads and sonographic morphology in elbow joint in youth baseball players. J Strength Cond Res 38(8): e440-e447, 2024-We assessed the effects of a 12-week shoulder corrective training program for shoulder flexibility and strengthening on pitching loads and sonographic morphology of the elbow joints in youth baseball players. Seventeen subjects were recruited and underwent evaluations before and after the training program. We found that following training, subjects demonstrated significantly increased ranges of shoulder internal rotation (38.9 ± 12.9° vs. 69.2 ± 10.8°, p < 0.001), external rotation (91.2 ± 14.6° vs. 107.3 ± 9.5°, p = 0.004), and horizontal adduction (21.5 ± 8.0° vs. 32.7 ± 7.3°, p = 0.002); improved strength in the shoulder internal rotators (8.7 ± 1.6 kg vs. 9.8 ± 2.1 kg, p = 0.04), external rotators (6.5 ± 1.9 kg vs. 7.5 ± 2.8 kg, p = 0.04), middle trapezius (12.7 ± 2.1 kg vs. 14.3 ± 2.4 kg, p = 0.04), and middle deltoid muscles (10.8 ± 3.3 kg vs. 14.8 ± 3.2 kg, p = 0.001); and decreased thickness of the ulnar collateral ligament (6.1 ± 0.6 mm vs. 4.8 ± 0.7 mm, p = 0.002). Although there was no substantial change in elbow torque and arm speed, significantly increased ball speed (51.2 ± 4.6 mph vs. 54.1 ± 4.5 mph, p < 0.001) and decreased arm slot (63.8 ± 11.9° vs. 53.0 ± 12.7°, p = 0.02) were observed. We suggest that adequate corrective training should be performed regularly to minimize or mitigate adverse soft tissue changes at the elbow in youth baseball players. Balanced shoulder strength and flexibility may decrease medial elbow stress during pitching. Future studies should consider the kinetic and kinematic effects of other corrective training programs on the shoulder or elbow joint during pitching.
摘要：
■陈，P-T,林,Y-C,Chang,H-Y,Chiu,C-H,陈，C-Y,陈，P,还有林,Y-H.肩部矫正训练计划对青少年棒球运动员肘关节投球负荷和超声形态的影响。JStrengthCondRes38（8）：e440-e447，2024-我们评估了为期12周的肩部矫正训练计划对青年棒球运动员的肩部柔韧性和增强投球负荷和肘关节超声形态的影响。招募了17名受试者，并在培训计划之前和之后进行了评估。我们发现在训练之后,受试者表现出肩部内旋范围显着增加（38.9±12.9°vs.69.2±10.8°,p<0.001)，外旋(91.2±14.6°vs.107.3±9.5°,p=0.004),和水平内收(21.5±8.0°vs.32.7±7.3°,p=0.002）；提高了台肩内部旋转器的强度（8.7±1.6kg与9.8±2.1kg,p=0.04),外部旋转器(6.5±1.9kg与7.5±2.8kg,p=0.04),中斜方肌(12.7±2.1kgvs.14.3±2.4kg,p=0.04),和中三角肌（10.8±3.3kgvs.14.8±3.2kg,p=0.001）；尺侧副韧带厚度减少（6.1±0.6mmvs.4.8±0.7mm,p=0.002)。尽管肘部扭矩和手臂速度没有实质性变化，球速显著提高(51.2±4.6mphvs.54.1±4.5mph,p<0.001)和减少的臂槽(63.8±11.9°vs.53.0±12.7°,观察到p=0.02）。我们建议应定期进行适当的矫正训练，以最大程度地减少或减轻青年棒球运动员肘部的不利软组织变化。平衡的肩部力量和柔韧性可以降低俯仰过程中的肘部内侧应力。未来的研究应考虑其他矫正训练计划在俯仰过程中对肩部或肘关节的动力学和运动学影响。
