摘要
目的：研究青年人爬行过程中心率、能量消耗及表面肌电变化特征。方法：选取健康青年男性12名分别做50米快速交替爬行和50米快速同向爬行,以及300米间歇交替爬行,利用心率表监测爬行过程中心率、能量消耗;采集等速交替、同向爬行过程中4个爬行运动周期的表面肌电数据,分析积分肌电和肌肉贡献率指标。结果：（1）50米快速交替和同向爬行过程中心率在110~150次/分占用时比例分别为72.22%±11.49%和70.39%±10.37%,单位时间能量消耗分别为11.16±6.46千卡/分和11.76±4.87千卡/分。（2）300米间歇爬行心率在110~150次/分占用时比例为56.00%±4.96%,单位时间能量消耗为10.99±0.76千卡/分。（3）等速交替、同向爬行过程中三角肌、肱三头肌、股直肌、肱二头肌和斜方肌均明显放电,积分肌电和肌肉贡献率无显著差异。结论：本研究中的爬行运动方式为中高强度短时高能耗运动,上肢、下肢和肩带等多个部位肌群参与运动。
Objective To investigate the changes of heart rate, energy consumption and surface electro- myography（EMG）of young people in the crawling exercise. Methods Twelve healthy young men were chosen to carry out 50-meter laigh-speed alternative crawling exercise and 50-meter identical-side crawling exercise as well as 300-meter intermittent and alternative crawling exercises respectively. The heart rate and energy consumption were monitored in the crawling process. The surface EMG data of equal-speed alternative crawling and identical-side crawling in the four crawling periods were collect- ed. The indexes of integrated EMG and muscle contribution rate were analyzed. Results 1. In the pro- cess of 50-meter high-speed identical-side crawling exercise and the alternative one, for 72.22%± 11.49% and 70.39%±10.37% of the time,the objects＇ heart beats ranged from 110 to 150 per minute, and the average energy consumption was 11.16~6.46 kcal/minute and 11.76±4.87 kcal/minute respective- ly. 2. During 300-meter intermittent alternative crawling exercises, the participants＇ heartbeats ranged from 110 beats/minute to 150 beats/minute in 56.00%±4.96% of the process,while the energy consump-tion was 10.99±0.76 kcal/minute. 3. Obvious discharge was observed in the deltoid,triceps brachii,rec- tus femoris, biceps brachii and trapezius in the processes of equal-speed alternative crawling and identi- cal-side crawling. However,no significant differences were found in the integrated electromyography and muscle contribution rate. Conclusions The crawling exercises studied were short-term high-energy-con- sumption exercises with medium-high intensity. Several muscle groups in the upper limb, lower limb and shoulder girdle joints participate in the crawling exercises.
作者
武春英
刘善云
柯文德
Wu Chunying Liu Shanyun Ke Wende(Department of Physical Education, Guangdong University of Petrochemical Technology, Guangdong 525000, China Physical Education and Training, Tianjin University of Sport, Tianjin 300381, China School of Computer and Electronic Information, Guangdong University of Petrochemical Technology, Guangdong 525000, China)
出处
《中国运动医学杂志》
CAS
北大核心
2016年第12期1119-1124,1156,共7页
Chinese Journal of Sports Medicine
基金
广东省云机器人(石油化工)工程技术研究中心开放基金(201507B06)
茂名市科技计划项目(20150336)
广东石油化工学院实验课题研究项目(215164)
广东石油化工学院成人教育教学与管理研究项目(CJ1508)
关键词
爬行
心率
能量消耗
表面肌电
crawling,heart rate,energy consumption, surface electromyography
