Liu Gongju, He Zhanyang, Ye Binyong, Guo Haiying, Pan Huiju, Zhu Houwei, Meng Guanliang
Key Laboratory of Aquatic Sports Science, General Administration of Sport, Zhejiang College of Sports, Hangzhou 311200, China.
College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321000, China.
Life (Basel). 2024 Aug 29;14(9):1086. doi: 10.3390/life14091086.
This study aimed to discuss the differences in technical characteristics between the lunge-style and squat-style jerk techniques and to reveal the adaptability of these techniques for individual weightlifters. A total of 52 attempts by 32 male weightlifters were selected, and the video data were digitized manually using the SIMI Motion 7.50 three-dimensional analysis system. The technical characteristics of the lunge split and squat jerk were fundamentally consistent during the pre-squat, force exertion, and inertia ascent phases. The primary differences between the lunge split and squat jerk techniques were observed during the squatting and support phases, including the vertical descent velocity of the barbell at the end of the squat shoulder-locking phase and the stability angles in the sagittal and coronal axes. The vertical velocity of the barbell at the end of the squat shoulder-locking phase was significantly greater in the squat style (-0.41 ± 0.17 vs. -0.88 ± 0.14) compared to the lunge style ( = 6.393, < 0.05). The stability angle on the sagittal axis at the end of the squat-supporting phase in the lunge style was significantly greater (46.99 ± 3.23 vs. 13.64 ± 0.51) than that of the squat style ( = 45.639, < 0.05).
本研究旨在探讨箭步式挺举技术和深蹲式挺举技术在技术特征上的差异，并揭示这些技术对个体举重运动员的适应性。选取了32名男性举重运动员的52次试举，使用SIMI Motion 7.50三维分析系统对手动数字化视频数据进行分析。箭步分腿挺举和深蹲挺举在预蹲、发力和惯性上升阶段的技术特征基本一致。箭步分腿挺举和深蹲挺举技术的主要差异出现在下蹲和支撑阶段，包括深蹲锁肩阶段结束时杠铃的垂直下降速度以及矢状轴和冠状轴上的稳定角度。与箭步式相比，深蹲式在深蹲锁肩阶段结束时杠铃的垂直速度明显更大（-0.41±0.17对-0.88±0.14）（ = 6.393， < 0.05）。箭步式在深蹲支撑阶段结束时矢状轴上的稳定角度明显大于深蹲式（46.99±3.23对13.64±0.51）（ = 45.639， < 0.05）。
