Comparison of static and dynamic biomechanical models.
Comparison of static and dynamic biomechanical models.
复制标题
静态和动态生物力学模型的比较。
DOI：
10.1080/00140138508963135
复制
发表时间：
1985
期刊：
影响因子：
2.4
通讯作者：
T. Leskinen
中科院分区：
文献类型：
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作者：
T. Leskinen
为了量化脊柱应力，通常使用生物力学模型。静态模型揭示了重力对姿态的影响，而动态模型也考虑了惯性因素。我们使用动态和静态模型来评估当20名受试者使用四种举起技术将15公斤重的箱子从10厘米高的架子上举起到关节高度时腰骶部的压迫。负载的平均峰值加速度为4.9 ~ 6.3 ms−2，从而使手部的力增加了50%以上。静态峰值压缩为3989 ~ 4650 N，动态峰值压缩为5866 ~ 6629 N，由于惯性因素的增加，根据提升技术的不同，增加幅度为33 ~ 60%。
To quantify spinal stress biomechanical models are often used. Static models reveal the postural effects due to gravity, while dynamic models also take into account inertial factors. We used both dynamic and static models to evaluate the lumbosacral compression when 20 subjects lifted a box weighing 15 kg from a 10 cm high shelf to knuckle height with four lifting techniques. The mean peak acceleration of the load was 4·9 − 6·3ms−2, thus increasing the force at the hands by over 50%. The static peak compression was 3989−4650 N and the dynamic 5866−6629 N, the increase due to inertial factors being 33−60% depending on lifting technique.