数字化等长肌肉收缩功能检测系统信度及效度研究

发布时间：2018-03-17 02:03

  本文选题：数字化等长肌肉收缩功能检测系统　切入点：肌肉力量　出处：《西安体育学院学报》2017年06期 　论文类型：期刊论文

【摘要】：目的基于肌肉等长收缩原理,设计研发一款数字化等长肌肉收缩功能检测系统,并对其信度及效度进行研究,验证测试系统的信度和效度。方法 13名大学生经同一检测者2次使用等长肌力测试系统,进行最大力量测试,测试间隔时间1周,使用组内相关系数(ICC)对结果进行信度分析;采用独立样本t检验对校标后,肘、膝不同力臂位置测量值与固定载荷(小、中、大)进行效度检验。结果信度检验结果表明,除膝关节右侧伸肌第1次与第2次相关系数低于0.75,为0.695,其它相关系数均在0.75以上;效度检验结果表明,除肘关节伸肌力臂位置27 cm实测值与固定载荷150 N之间存在显著性差异外(P0.05),肘关节屈肌力量及膝关节屈、伸肌力量力臂位置实测值与大、中、小固定载荷之间均无显著差异(P0.05)。结论研究设计研发的等长肌力测试系统具有较好的重测信度及效度,可实现对肘膝关节肌肉力量的精确测量,同时具有实时性的特点。
[Abstract]:Objective to design and develop a digital measuring system for isometric muscle contraction based on the principle of isometric contraction, and to study its reliability and validity. Methods the reliability and validity of the test system were tested by using the isometric muscle strength test system twice in 13 college students. The test interval was 1 week and the reliability of the results was analyzed by using the correlation coefficient within the group (ICCC). The independent sample t test was used to test the validity of the measured values and fixed loads (small, medium and large) at different arm positions of elbow and knee after calibration. Except for the first and second times of the right extensor muscle of the knee joint, the correlation coefficient was lower than 0.75 (0.695), and the other correlation coefficients were above 0.75. Except for the significant difference between the measured value of 27cm and the fixed load of 150N, the strength of flexor muscle and knee joint flexion of elbow joint, and the position of extensor muscle force arm were measured. There is no significant difference between the small fixed loads and P0.05.Conclusion the research and design of the isometric muscle strength testing system has good reliability and validity of retest, which can realize the accurate measurement of the muscle strength of the elbow and knee joint, and has the characteristics of real-time.
【作者单位】： 山西大学体育学院;中北大学体育学院;
【基金】：山西省科技厅科技攻关项目(20140313024-4)
【分类号】：G804.6
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本文编号：1622647