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      • Immediate Effects of Stretching Combination on Warm-up and Performance of Swing Players

        Yuchun Wang,Yidan Niu,Yiqiao Wang,Yu Zang 아시아건강운동학회 2023 Journal of Asian Society for Health & Exercise Vol.5 No.1

        PURPOSE : The purpose of this study was to determine the effects of six muscle stretching combinations on the muscle performance and blood supply of pectoralis major of sub-elite swing athletes. RESULTS : A total of 90 male athletes aged 18-25 participated and divided into six groups on average: SS60s DS30s (1); SS45s DS45s (2); SS30s DS60s (3); DS60s SS30s (4); DS45s SS45s (5); DS30s SS60s (6). After stretching, the maximum blood flow velocity of group (1) increased by 74.91±52.73cm/s (p< 0.01), and the blood flow increased by 3.82±2.93ml/s (p<0.01). The maximum blood flow velocity of group (2) increased by 25.71±33.20cm/s (p<0.05), and the blood flow increased by 1.10±1.56ml/s (p<0.05); Group (3) showed a decrease in blood flow of 10.70±45.68ml/s (p>0.05), while the maximum blood flow increased by 30.93±63.49cm/s (p>0.05). After stretching, there were significant differences in blood flow and velocity among groups. In group (1), adductor muscle strength decreased by 0.35±4.47 (p>0.05)and supinator muscle strength decreased by 0.99±5.22 (p>0.05), while abductor muscle strength increased by 1.43±8.26 (p>0.05) and supinator muscle strength increased by 0.97±4.58 (p>0.05). In group (2), the adductor muscle strength increased by 2.52±2.95 (p<0.01). Abductor muscle strength increased by 1.2±6.62 (p>0.05) and external rotation muscle strength increased by 1.18±2.28 (p>0.05), while internal rotation muscle strength decreased by 0.36±2.50 (p>0.05). In group (3), muscle strength increased, but both were not statistically significant. After the experiment, there was no significant difference in muscle strength among the groups.

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