Frontiers in Sport Research, 2025, 7(1); doi: 10.25236/FSR.2025.070105.
Cheng Zhao1, Ormond Heather2
1School of Sport and Exercise Rehabilitation, Jinzhou Medical University, Jinzhou, China
2Centre of human performance, Waikato institute of Technology, Hamilton, New Zealand
This study employs video analysis technology in an exploratory approach to further investigate the tracking of hip joint motion trajectories, building upon existing research on joint angles and barbell trajectories. By analyzing the hip joint motion trajectories of three Olympic champion-level Chinese athletes during the squat snatch, it was observed that the hip joint follows a mirrored “S” shaped movement pattern in the first three phases of the squat snatch. Specifically, during the second pull phase, the hip joint exhibits a characteristic motion pattern of first descending and then ascending. By tracing the dynamic changes in hip, knee, and ankle joint angles, this paper delves into the mechanisms of hip descent. Furthermore, combined with barbell trajectory analysis, it investigates the variation in hip vertical displacement amplitude among athletes with different technical profiles under varying loads. The findings indicate that a moderate hip vertical displacement significantly enhances technical efficiency and athletic performance in the squat snatch. However, the relationship between vertical displacement amplitude and load is influenced by the athlete’s technical style, exhibiting distinct characteristics.
Squat snatch, Video analysis, Kinematics
Cheng Zhao, Ormond Heather. Exploration of the Triple Extension Pattern of Hip, Knee, and Ankle in the Squat Snatch: Analysis of Hip Joint Motion Trajectories in Elite Chinese Weightlifters. Frontiers in Sport Research (2025) Vol. 7, Issue 1: 30-39. https://doi.org/10.25236/FSR.2025.070105.
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