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Influences of Different Drop Height Training on Lower Extremity Kinematics and Stiffness during Repetitive Drop Jump

التفاصيل البيبلوغرافية
العنوان: Influences of Different Drop Height Training on Lower Extremity Kinematics and Stiffness during Repetitive Drop Jump
المؤلفون: I-Lin Wang, Yi-Ming Chen, Ke-Ke Zhang, Yu-Ge Li, Yu Su, Chou Wu, Chun-Sheng Ho
المصدر: Applied Bionics and Biomechanics, Vol 2021 (2021)
بيانات النشر: Hindawi Limited, 2021.
سنة النشر: 2021
المجموعة: LCC:Biotechnology
LCC:Biology (General)
مصطلحات موضوعية: Biotechnology, TP248.13-248.65, Biology (General), QH301-705.5
الوصف: Drop jump (DJ) is often used as a plyometric exercise to improve jumping performance. Training from improper drop heights and for improper durations lead to unfavorable biomechanical changes in the lower extremities when landing, which result in reduced training effects and even lower extremity injuries. Purpose. To study the effects of repeated DJ training at drop heights of 30 cm, 40 cm, and 50 cm (drop jump height (DJH) 30, DJH40, and DJH50) on lower extremity kinematics and kinetics. The 1st, 50th, 100th, 150th, and 200th DJs (DJ1, DJs50, DJs100, DJs150, and DJs200) were recorded by using a BTS motion capture system and force platform. The MATLAB software was used to compare the kinematic and stiffness data of DJ1, DJs50, DJs100, DJs150, and DJs200 with one-way ANOVA repeated measure. If there were significant differences, the LSD method was used for post hoc comparisons. Methods. Twenty healthy male Division III athlete volunteers were selected as subjects, and 200 drop jumps (DJs200) were performed from DJH30, DJH40, and DJH50. Results. The jumping height (JH), contact time (CT), and GRF increased with drop height, and the stiffness of the legs and ankle at DJH30 was higher than that at DJH40 and DJH50 (p
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1176-2322
1754-2103
Relation: https://doaj.org/toc/1176-2322; https://doaj.org/toc/1754-2103
DOI: 10.1155/2021/5551199
URL الوصول: https://doaj.org/article/33d5f6f45d9b4dfcbb9ee865f14ef816
رقم الأكسشن: edsdoj.33d5f6f45d9b4dfcbb9ee865f14ef816
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:11762322
17542103
DOI:10.1155/2021/5551199