椭圆交叉训练机锻炼时人体生物力学与动力学特点
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陕西省自然科学基础研究计划资助项目(2014JM7269)


Biomechanical and Dynamic Characteristics of Human Body during Exercise on Elliptical Cross Trainer
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    目的 分析椭圆交叉训练机锻炼过程中人体生物力学与动力学特性。方法 通过三维建模软件建立一种椭圆交叉训练机模型,在AnyBody软件中建立人体骨肌模型,然后将人体骨肌模型与椭圆交叉训练机模型进行耦合仿真。结果 在椭圆交叉训练机锻炼过程中,躯干部位中腰椎L5受作用力最大达到1.023 kN,腹外斜肌和腹内斜肌激活程度最大分别为80%和40%。下肢肌群中肌肉最大激活程度均未超过40%,且地面给予足底的最大反作用力为600 N。结论 人体使用椭圆交叉训练机进行锻炼可以缓解慢性腰痛患者疼痛,有助于提高脑卒中偏瘫患者躯干控制能力及平衡功能。对比跑步锻炼,使用椭圆机交叉训练机锻炼能起到保护人体膝关节的作用。

    Abstract:

    Objective To analyzes the biomechanical and dynamic characteristics of human body during exercise on elliptical cross trainer. Methods An elliptical cross trainer model and a human skeletal muscle model were built by three-dimensional (3D) modeling software and AnyBody software, respectively, which were then coupled and simulated. Results During exercise on elliptical cross trainer, the lumbar spine L5 was subjected to the maximum force 1023 kN, and the maximum activation of external oblique and internal oblique muscles were 80% and 40%, respectively. The maximum muscle activation in lower limb muscle groups did not exceed 40%, and the maximum plantar ground reaction force was 600 N. Conclusions The use of elliptical cross trainer can alleviate the pain of patients with chronic low back pain, and help to improve the trunk control and balance function of patients with stroke and hemiplegia. Compared with running exercise, exercise on elliptical cross trainer can protect the human knee joint.

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孙朝阳,何育民,郭超,郭思宇.椭圆交叉训练机锻炼时人体生物力学与动力学特点[J].医用生物力学,2020,35(6):692-697

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  • 收稿日期:2019-12-30
  • 最后修改日期:2020-02-27
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  • 在线发布日期: 2020-12-24
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