【摘要】：探討無損傷男性受試者跑步支撐期優(yōu)勢側(cè)與非優(yōu)勢側(cè)下肢生物力學(xué)的差異性。方法:選取普通健康無損傷男性受試者12名,采用Vicon紅外高速運動捕捉系統(tǒng)和Kistler三維測力臺對受試者跑步支撐期的運動學(xué)和動力學(xué)指標進行同步采集。結(jié)果:1)優(yōu)勢側(cè)跑步支撐期髖關(guān)節(jié)最大伸和膝關(guān)節(jié)最大屈曲角度小于非優(yōu)勢側(cè)(P0.05),踝關(guān)節(jié)在矢狀面兩側(cè)差異無統(tǒng)計學(xué)意義(P0.05);在額狀面的關(guān)節(jié)角度兩側(cè)差異均無統(tǒng)計學(xué)意義(P0.05)。2)跑步支撐期,內(nèi)側(cè)地面反作用力峰值優(yōu)勢側(cè)大于非優(yōu)勢側(cè),而到達峰值的時間晚于非優(yōu)勢側(cè)(P0.05),外側(cè)地面反作用力峰值非優(yōu)勢側(cè)大于優(yōu)勢側(cè),且到達峰值的時間晚于優(yōu)勢側(cè)(P0.05),垂直和前后地面反作用力峰值及到達峰值的時間兩側(cè)差異均無統(tǒng)計學(xué)意義(P0.05)。載荷率兩側(cè)差異比較無統(tǒng)計學(xué)意義(P0.05)。3)根據(jù)垂直地面反作用力峰值和第1載荷率計算的對稱性指數(shù)顯示兩側(cè)存在不對稱性。結(jié)論:1)在跑步支撐期,優(yōu)勢側(cè)與非優(yōu)勢側(cè)矢狀面內(nèi)髖膝角度存在差異性,提示了在跑鞋、鞋墊及下肢矯形器等設(shè)計和臨床研究中,不能僅僅選擇一側(cè)來評價跑步的整體感覺、損傷風險和康復(fù)效果。2)跑步支撐期在內(nèi)外地面反作用力峰值存在的差異性、第1峰值和載荷率所表現(xiàn)出的偏側(cè)性,結(jié)合膝關(guān)節(jié)屈曲角度的差異性可能會增加優(yōu)勢側(cè)損傷的風險。長期積累,有可能會造成優(yōu)勢側(cè)脛骨應(yīng)力性骨折、足底筋膜炎及ACL的損傷。
[Abstract]:To explore the difference of biomechanics between the dominant side and the non dominant side in the running support period of uninjured male subjects. Methods: the kinematics and dynamics indexes of running support period were collected by Vicon infrared high-speed motion capture system and Kistler three dimensional dynamometer in 12 normal healthy male subjects. Results: 1) the maximal extension and flexion angle of hip joint in the running support period of the dominant side were smaller than those of the non-dominant side (P0.05), but there was no significant difference between the two sides of the ankle joint in the sagittal plane (P0.05), while there was no significant difference in the bilateral angle of the joint in the frontal plane (P0.05). Significance (P0.05) 2) running support period, The peak value of medial ground reaction was larger than that of non-dominant side, and the time of reaching the peak value was later than that of non-dominant side (P0.05), and the non-dominant side of lateral ground reaction was larger than that of dominant side. The time of reaching the peak value was later than that of the dominant side (P0.05). There was no significant difference in the peak value of the vertical and front surface reaction force and the time of reaching the peak value (P0.05). There was no significant difference between the two sides of load rate (P0.05). The symmetry index calculated according to the peak value of vertical ground reaction force and the first load rate showed asymmetry on both sides. Conclusion: during the running support period, the hip and knee angles in the sagittal plane of the dominant side and the non-dominant side are different, suggesting that in the design and clinical study of running shoes, insoles and lower extremity orthosis, one side should not be chosen to evaluate the overall feeling of running. Injury risk and rehabilitation effect (.2) the difference of the peak value of the internal and external ground reaction force in the running support period, the sideways of the first peak value and the load rate, combined with the difference of the knee flexion angle, may increase the risk of the dominant side injury. Long-term accumulation may result in stress fractures of the dominant tibia, plantar fasciitis and ACL damage.
【作者單位】： 蘇州大學(xué)體育學(xué)院;
【基金】：江蘇省品牌專業(yè)建設(shè)工程資助項目
【分類號】：G804.6

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