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Study on the Effect of PNF Method on the Flexibility and Strength Quality of Stretching Muscles of Shoulder Joints of Swimmers

Boqing Li, Xiaolong Bai, Yongli Zhu*

Physical Education College, Yunnan University, Kunming, 650500, China

* Corresponding Author: Yongli Zhu. Email: email

Molecular & Cellular Biomechanics 2021, 18(2), 99-105. https://doi.org/10.32604/mcb.2021.014748

Abstract

In the process of swimming, the shoulder joint will be damaged when the arm is stroking. To reduce the injury of shoulder joints and improve the speed of stroke, it is necessary to train the flexibility of shoulder joints. This paper briefly introduced the concept of shoulder joint and flexibility and then explained the traditional stretching training method and proprioceptive neuromuscular facilitation (PNF) stretching method. Then, taking 20 college team swimmers of Yunnan University as the subjects, the comparative experiment of the traditional and PNF stretching methods was carried out. The results showed that the shoulder rotation index of the athletes after the use of the PNF stretching method was significantly lower compared with the traditional stretching method; under the PNF stretching method, the average power and total work of shoulder joints significantly improved in the high-speed external rotation, and the performance in the 50 m freestyle also significantly improved.

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APA Style
Li, B., Bai, X., Zhu, Y. (2021). Study on the effect of PNF method on the flexibility and strength quality of stretching muscles of shoulder joints of swimmers. Molecular & Cellular Biomechanics, 18(2), 99-105. https://doi.org/10.32604/mcb.2021.014748
Vancouver Style
Li B, Bai X, Zhu Y. Study on the effect of PNF method on the flexibility and strength quality of stretching muscles of shoulder joints of swimmers. Mol Cellular Biomechanics . 2021;18(2):99-105 https://doi.org/10.32604/mcb.2021.014748
IEEE Style
B. Li, X. Bai, and Y. Zhu "Study on the Effect of PNF Method on the Flexibility and Strength Quality of Stretching Muscles of Shoulder Joints of Swimmers," Mol. Cellular Biomechanics , vol. 18, no. 2, pp. 99-105. 2021. https://doi.org/10.32604/mcb.2021.014748



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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