垫脚跟静蹲在不同屈膝角度下股四头肌表面肌电分析研究
发布时间：2019-05-25 00:52
【摘要】：研究目的:本研究通过让受试者分别进行两组(普通静蹲和垫高脚跟静蹲)不同屈膝角度下的静蹲练习,细致分析左右腿股四头肌表面肌电变化特征,来对比两种方式优劣,并着重旨在寻找出垫脚跟静蹲较为科学的练习角度,为合理的垫脚跟静蹲练习方式提供科学依据。研究方法:选取首都体育学院在校男性大学生30名,均为非体育专业,身体及心理状况良好,并自愿参加本实验,股四头肌及膝关节未发生过严重损伤,测试前24小时内肌肉处于正常非疲劳状态。受试者分别进行屈膝角度45°、60°和75°的普通静蹲及垫高脚跟静蹲,测试间隔7天,实验过程中使用MegaWin ME6000 T16(16通道)肌电信号监测记录系统监测记录受试者左右腿股外侧肌、股内侧肌和股直肌的表面肌电信号。实验数据依指标分为iEMG值,MPF和MF值三大部分。使用SPSS 22.0统计软件进行分析处理,对两组间进行配对T检验,三个角度间、五个阶段间的数据进行单因素方差分析。研究结果:1.垫脚跟与普通静蹲的双腿股四头肌iEMG最大值在三个角度下均出现在屈膝角度为45°时的股外侧肌,三条肌肉在三个角度下的iEMG值均呈现出股外侧肌股内侧肌股直肌,且垫脚跟静蹲组普通静蹲组。三条肌肉除右腿股直肌在60°时无显著性差异外,三个角度下均有显著性差异(P㩳0.05或P㩳0.01)。2.垫脚跟与普通静蹲的双腿股四头肌的三条肌肉MPF最大值均出现在屈膝45°时;三个角度下,两组的MPF值均呈现出股直肌股内侧肌股外侧肌。3.左腿股外侧肌和股直肌、右腿三条肌肉在两组的MF最大值均出现在屈膝45°时,左腿股内侧肌出现在60°时。左腿三条肌肉在三个角度下,两组的MF值均呈现出股直肌股内侧肌股外侧肌的趋势。右腿45°时,呈现出股直肌股外侧肌股内侧肌;60°时,垫脚跟组呈现出股直肌股内侧肌股外侧肌,普通组呈现出股直肌股外侧肌股内侧肌;75°时两组均呈现出股直肌股内侧肌股外侧肌。4.双腿三条肌肉在三个角度下两组的MPF都呈现降低趋势,两组间呈现出垫脚跟组普通组的趋势,且均呈现出显著性差异(P㩳0.05或P㩳0.01)。双腿股外侧肌、股直肌的MPF斜率绝对值呈现出75°60°45°,股内侧肌呈现出75°45°60°。在与45°相比较时,左腿股外侧肌75°呈现显著性差异(P㩳0.05),60°时则无显著性差异。双腿股直肌在60°和75°时均呈现显著性差异(P㩳0.05)。双腿股内侧肌在75°时呈现显著性差异(P㩳0.05),60°时则无显著性差异。5.双腿三条肌肉在三个角度下两组的MF都呈现降低趋势,两组间MF斜率绝对值呈现出垫脚跟组普通组且均呈现出显著性差异(P㩳0.05或P㩳0.01)。左右腿股外侧肌的MF斜率绝对值呈现出75°60°45°,双腿股直肌、股内侧肌呈现出75°45°60°。在与45°相比较时,双腿三条肌肉在75°时均呈现显著性差异(P㩳0.05),60°时无显著性差异。研究结论:1.垫脚跟静蹲练习对股四头肌的锻炼效果优于普通静蹲练习。2.选择进行垫脚跟静蹲练习来锻炼股四头肌以提高肌力进而防治髌骨劳损,减小膝关节运动损伤风险时,选择45°进行练习效果较佳,且髌股关节压力适中,所以45°是垫脚跟静蹲时较为科学合理的练习角度。
[Abstract]:The purpose of this study was to compare the characteristics of the myoelectric changes of the quadriceps femoris and the quadriceps femoris of the left and right leg by using the static squat exercise of the two groups (ordinary squat and high heel static squat), and compare the two ways. The aim of this paper is to find out the scientific practice angle of the foot and the static crouching, and provide the scientific basis for the reasonable foot-to-foot and the squat exercise mode. The method of the study was to select 30 male college students in the capital physical education institute. All of them were non-physical, physical and psychological, and they volunteered to participate in the experiment. The quadriceps and the knee joint did not experience serious injury, and the muscles were in the normal non-fatigue state in the first 24 hours before the test. The subject was subjected to normal squat and high heel static squat at 45 掳,60 掳 and 75 掳, respectively, with a test interval of 7 days, and the recording system was used to monitor and record the left and right leg thigh outer muscles of the subject using the MegaWin ME6000 T16 (16-channel) myoelectric signal monitoring and recording system during the course of the experiment. The surface electromyographic signals of the medial and thigh muscles of the thigh. The experimental data is divided into three parts: iEMG value, MPF and MF value. The analysis and treatment were carried out using the SPSS 22.0 statistical software, the paired T-test was performed between the two groups, and the single-factor analysis of variance was performed between the three angles and the data between the five stages. Study results:1. The maximum of the iEMG of the quadriceps and the iEMG of the quadriceps of the two legs and the common crouching was at 45 掳 in the flexion. The iEMG values of the three muscles at the three angles exhibited the direct muscle of the medial muscle of the outside of the thigh, and the foot was in the normal squat group of the static squatting group. There was no significant difference (P? 0.05 or P? 0.01) between the three muscles, except that the right leg of the right leg had no significant difference at 60 掳. The maximum of the MPF of the three muscles of the quadriceps femoris and the quadriceps femoris of the two-legged quadriceps was 45 掳, and the MPF values of the two groups showed the lateral muscle of the medial muscle of the quadriceps femoris. The left leg thigh muscle and the quadriceps, the right leg three muscles appeared at the flexion of 45 掳 at the MF maximum in both groups, and the medial muscle of the left leg was at 60 掳. The MF values of the left leg and the two groups showed the tendency of the lateral muscle of the medial muscle of the thigh. At 45 掳 of the right leg, the medial muscle of the lateral muscle of the thigh-straight muscle strand was present; at 60 掳, the heel group of the thigh showed the outer muscle of the medial muscle of the straight-muscle strand, and the normal group showed the medial muscle of the lateral muscle of the thigh-straight muscle; at the time of 75 掳, the lateral muscles of the medial muscle of the thigh-straight muscle were present. Both of the three groups of the two legs showed a tendency to decrease the MPF in the two groups at three angles, and there was a significant difference between the two groups (P? 0.05 or P? 0.01). The absolute value of the MPF slope of the quadriceps femoris and the quadriceps is 75 掳 60 掳 45 掳, and the inner muscle of the thigh is 75 掳 45 掳 60 掳. In comparison with 45 掳, there was a significant difference in the lateral muscle of the left leg (P? 0.05), and there was no significant difference at 60 掳. The straight muscle of both legs showed significant difference at 60 掳 and 75 掳 (P? 0.05). There was no significant difference (P? 0.05) at 75 掳, and there was no significant difference at 60 掳. The two groups of MF showed a tendency to decrease in both groups at three angles, and the absolute values of MF slope between the two groups showed significant difference (P? 0.05 or P? 0.01). The absolute value of MF slope of the lateral muscle of the left and right leg is 75 掳 60 掳 45 掳, the straight muscle of the two legs and the inner muscle of the thigh are at 75 掳 45 掳 and 60 掳. When compared with 45 掳, the three muscles of the two legs exhibited a significant difference at 75 掳 (P? 0.05), and there was no significant difference at 60 掳. Study conclusion:1. The exercise effect on the quadriceps femoris is superior to that of the normal squat exercise. in that method, the quadriceps of the femoral head are exercise to improve the muscle strength and further control the strain of the patella and reduce the risk of injury of the knee joint, the exercise effect is better, and the pressure of the femoral joint is moderate, Therefore,45 掳 is a scientific and reasonable practice angle when the foot is sitting with the rest.
【学位授予单位】：首都体育学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.2
本文编号：2485345
[Abstract]:The purpose of this study was to compare the characteristics of the myoelectric changes of the quadriceps femoris and the quadriceps femoris of the left and right leg by using the static squat exercise of the two groups (ordinary squat and high heel static squat), and compare the two ways. The aim of this paper is to find out the scientific practice angle of the foot and the static crouching, and provide the scientific basis for the reasonable foot-to-foot and the squat exercise mode. The method of the study was to select 30 male college students in the capital physical education institute. All of them were non-physical, physical and psychological, and they volunteered to participate in the experiment. The quadriceps and the knee joint did not experience serious injury, and the muscles were in the normal non-fatigue state in the first 24 hours before the test. The subject was subjected to normal squat and high heel static squat at 45 掳,60 掳 and 75 掳, respectively, with a test interval of 7 days, and the recording system was used to monitor and record the left and right leg thigh outer muscles of the subject using the MegaWin ME6000 T16 (16-channel) myoelectric signal monitoring and recording system during the course of the experiment. The surface electromyographic signals of the medial and thigh muscles of the thigh. The experimental data is divided into three parts: iEMG value, MPF and MF value. The analysis and treatment were carried out using the SPSS 22.0 statistical software, the paired T-test was performed between the two groups, and the single-factor analysis of variance was performed between the three angles and the data between the five stages. Study results:1. The maximum of the iEMG of the quadriceps and the iEMG of the quadriceps of the two legs and the common crouching was at 45 掳 in the flexion. The iEMG values of the three muscles at the three angles exhibited the direct muscle of the medial muscle of the outside of the thigh, and the foot was in the normal squat group of the static squatting group. There was no significant difference (P? 0.05 or P? 0.01) between the three muscles, except that the right leg of the right leg had no significant difference at 60 掳. The maximum of the MPF of the three muscles of the quadriceps femoris and the quadriceps femoris of the two-legged quadriceps was 45 掳, and the MPF values of the two groups showed the lateral muscle of the medial muscle of the quadriceps femoris. The left leg thigh muscle and the quadriceps, the right leg three muscles appeared at the flexion of 45 掳 at the MF maximum in both groups, and the medial muscle of the left leg was at 60 掳. The MF values of the left leg and the two groups showed the tendency of the lateral muscle of the medial muscle of the thigh. At 45 掳 of the right leg, the medial muscle of the lateral muscle of the thigh-straight muscle strand was present; at 60 掳, the heel group of the thigh showed the outer muscle of the medial muscle of the straight-muscle strand, and the normal group showed the medial muscle of the lateral muscle of the thigh-straight muscle; at the time of 75 掳, the lateral muscles of the medial muscle of the thigh-straight muscle were present. Both of the three groups of the two legs showed a tendency to decrease the MPF in the two groups at three angles, and there was a significant difference between the two groups (P? 0.05 or P? 0.01). The absolute value of the MPF slope of the quadriceps femoris and the quadriceps is 75 掳 60 掳 45 掳, and the inner muscle of the thigh is 75 掳 45 掳 60 掳. In comparison with 45 掳, there was a significant difference in the lateral muscle of the left leg (P? 0.05), and there was no significant difference at 60 掳. The straight muscle of both legs showed significant difference at 60 掳 and 75 掳 (P? 0.05). There was no significant difference (P? 0.05) at 75 掳, and there was no significant difference at 60 掳. The two groups of MF showed a tendency to decrease in both groups at three angles, and the absolute values of MF slope between the two groups showed significant difference (P? 0.05 or P? 0.01). The absolute value of MF slope of the lateral muscle of the left and right leg is 75 掳 60 掳 45 掳, the straight muscle of the two legs and the inner muscle of the thigh are at 75 掳 45 掳 and 60 掳. When compared with 45 掳, the three muscles of the two legs exhibited a significant difference at 75 掳 (P? 0.05), and there was no significant difference at 60 掳. Study conclusion:1. The exercise effect on the quadriceps femoris is superior to that of the normal squat exercise. in that method, the quadriceps of the femoral head are exercise to improve the muscle strength and further control the strain of the patella and reduce the risk of injury of the knee joint, the exercise effect is better, and the pressure of the femoral joint is moderate, Therefore,45 掳 is a scientific and reasonable practice angle when the foot is sitting with the rest.
【学位授予单位】：首都体育学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.2
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