中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (42): 6357-6362.doi: 10.3969/j.issn.2095-4344.2016.42.019

• 组织构建基础实验 basic experiments in tissue construction • 上一篇    下一篇

运动速度和目标位置影响上肢伸手触碰运动:三维运动检测及表面肌电分析

李丽芳,毛玉瑢,黄东锋,李  乐   

  1. 广东省康复医学与临床转化工程技术研究中心;中山大学附属第一医院康复医学科,广东省广州市   510080
  • 收稿日期:2016-08-10 出版日期:2016-10-14 发布日期:2016-10-14
  • 通讯作者: 李乐,博士,副研究员,广东省康复医学与临床转化工程技术研究中心;中山大学附属第一医院康复医学科,广东省广州市 510080
  • 作者简介:李丽芳,女,1990年生,福建省永定县人,汉族,2016年中山大学毕业,硕士,医师,主要从事神经康复和运动重建方面的研究。
  • 基金资助:

    广东省自然科学基金(2015A030313139);广东省产学研项目(2013B090500099)

Velocity and target location influence the upper limb reaching movements: three-dimensional motion analysis combined with surface electromyograph

Li Li-fang, Mao Yu-rong, Huang Dong-feng, Li Le   

  1. Guangdong Engineering and Technology Center for Rehabilitation and Translational Medicine, Department of Rehabilitation Medicine, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • Received:2016-08-10 Online:2016-10-14 Published:2016-10-14
  • Contact: Li Le, M.D., Associate researcher, Guangdong Engineering and Technology Center for Rehabilitation and Translational Medicine, Department of Rehabilitation Medicine, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • About author:Li Li-fang, Master, Physician, Guangdong Engineering and Technology Center for Rehabilitation and Translational Medicine, Department of Rehabilitation Medicine, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • Supported by:

    the Natural Science Foundation of Guangdong Province, No. 2015A030313139; the Industry-University-Research Project of Guangdong Province, No. 2013B090500099

摘要:

文章快速阅读:

文题释义:
运动轨迹比:上肢末端手部0标记点从起点到触碰终点的实际运动轨迹长度除以两点的直线距离,用于定义运动平滑度。运动轨迹比越小越接近1,表示运动轨迹越值越平滑,运动质量越高。
弹道式运动:快速运动比常速运动完成时间缩短,运动轨迹更接近弹道式运动,轨迹更直,因此需要更高级的运动规划和执行,为了实现这一目标,在运动的起始也需要更大的力,这在运动学上由最快速度增大反映。
摘要
背景:
三维运动检测加表面肌电分析不仅能定量客观地分析上肢运动功能,对探讨影响上肢运动功能的因素和机制也有重要作用。
目的:分析运动速度和目标位置对上肢伸手触碰运动的运动学及肌肉活动的影响。
方法:12名正常年轻人用右手分别以正常速度和最大速度触碰对侧、中间、同侧3个不同位置的铃铛, 采用英国Vicon三维运动分析系统和Noraxon公司的无线肌电图机同步采集运动学及肌电数据。
结果与结论:①快速运动时轨迹比小于常速运动(P < 0.001),平均速度、最大速度、峰值时间百分比大于常速运动(P < 0.001);②三角肌后部、肱二头肌、肱三头肌肌肉收缩比常速运动时增强(P < 0.001);同侧伸手运动中,三角肌前部肌肉收缩水平低于伸向对侧(P=0.001)和中间(P < 0.001),三角肌后部肌肉收缩水平高于伸向对侧时(P=0.019),肱二头肌(P=0.039)和肱三头肌(P < 0.001)肌肉收缩水平高于伸向中间。③结果说明,快速运动可以更好地激活肌肉,且运动速度加快、轨迹变直,运动质量提高;同侧运动对三角肌后部、肘关节肌肉的激活增大,而对侧运动更多地激活三角肌前部,不同目标位置,肌肉激活模式不同。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0002-9340-9061(李乐)

关键词: 组织构建, 组织工程, 伸手运动, 上肢, 运动学, 表面肌电, 广东省自然科学基金

Abstract:

BACKGROUND: Three-dimensional (3D) motion analysis system combined with electromyograph cannot only objectively analyze movement function of the upper limb, but also exert an important role in exploring the exercise-related factors and the underlying mechanism.
OBJECTIVE: To explore the influence of movement velocity and target location on kinematics and muscle activity in upper limb reaching.
METHODS: Twelve healthy young adults reached for three different location targets (frontal, ipsilateral and contralateral) at self-selected and fast speeds to with the dominant right hand, respectively. Kinematic parameters and muscle activity were recorded by Vicon 3D motion analysis system and Noraxon wireless electromyograph, synchronously.
RESULTS AND CONCLUSION: Reach path ratio became smaller when moving faster (P < 0.001), while mean velocity, peak velocity and the time percentage of peak velocity increased (P < 0.001). Posterior deltoid, biceps brachii and triceps brachii activation was higher during fast speed movement (P < 0.001). Muscle activation of anterior deltoid was lower in ipsitralateral reaching than contralateral (P=0.001) and frontal reaching (P < 0.001), and posterior deltoid was higher than contralateral reaching (P=0.019). Biceps brachii (P=0.039) and triceps brachii (P < 0.001) activation was also higher in ipsitralateral reaching than frontal reaching. These results suggest that moving fast can contribute to more muscle activation, high velocity, smooth trajectory and increased movement quality. Posterior deltoid, elbow extension and flexion muscle activation are high in ipsitralateral reaching, while high anterior deltoid activation in contralateral reaching; therefore, target location result in muscle synergies.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Hand, Upper Extremity, Motor Activity, Electromyography

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