小腿绑带对全身振动训练中大腿部表面肌电信号的影响
发布时间：2019-02-13 08:57
【摘要】：研究目的:探究在全身振动训练过程中,受试者小腿部绑带(施加150mm Hg的压强,限制小腿肌肉的活动)后,对其大腿部股内侧肌和股外侧肌的表面肌电信号的影响情况,通过对比大腿部表面肌电信号在小腿部绑带前后的变化来验证振动反射的发生。研究方法:实验前随机选取3名实验对象做大腿股内侧肌和股外侧肌的最大自主收缩,采集表面肌电信号。10名健康男性实验对象,年龄(25.50±0.52岁),身高(173.60±5.10cm),体重(69.40±8.11kg),实验对象下肢无伤病史,在实验开始前三天无剧烈运动,以消除对实验结果产生影响。受试者分别在不振动不绑带、振动不绑带、不振动绑带、振动绑带四种实验条件下直立于振动平台上(振动平台频率为10Hz,适用于肌肉放松训练),测试股内侧肌和股外侧肌的加速度信号和表面肌电信号,以及足跟部和振动平台的加速度信号。加速度信号的处理过程为直接分别对加速度信号在三轴方向上作快速傅立叶变换得到三轴方向上的加速度频谱图,求出在人体解剖学垂直轴和水平面上的振动能量百分比;另外再对加速度信号依次作去直流、一次积分、二次积分、快速傅立叶变换处理,再平方求得振动在频率为10Hz的振动相对能量、总的振动相对能量和频率为10Hz的振动能量占总的振动能量的百分比。肌电信号的处理过程为滤波(二阶带通butter滤波,通带为10-400Hz)、移除平均值、整流、截段,最后求积分肌电值。分别对振动不绑带和振动绑带实验条件下振动平台、足跟、股内侧肌和股外侧肌四个部位的频率为10Hz的振动相对能量、总的振动相对能量、10Hz的振动能量占总的振动能量的百分比采用单因素方差分析进行统计分析;分别对股内侧肌和股外侧肌绑带前后的10Hz的振动能量在人体垂直轴上的百分比、10Hz的振动能量人体水平面上的百分比、10Hz的振动相对能量、总的振动相对能量、10Hz的振动能量占总的振动能量的百分比采用配对样本t检验进行统计分析;分别对股内侧肌和股外侧肌在四种实验条件下股内侧肌和股外侧肌的表面肌电信号的积分肌电值采用随机区组双因素方差分析进行统计分析;分别对股内侧肌和股外侧肌绑带振动时表面肌电信号积分肌电值与频率为10Hz的振动相对能量、表面肌电信号积分肌电值与总的振动相对能量采用皮尔森双变量相关性分析对实验相关数据进行统计分析。研究结果:全身振动训练过程中,受试者小腿部无论绑带还是不绑带,振动平台频率为10Hz的振动能量主要集中人体垂直轴方向上,足跟部位、股内侧肌和股外侧肌这三个部位的频率为10Hz在人体垂直轴振动方向的能量和在人体水平面内振动方向的能量大约各占一半;股内侧肌和股外侧肌的频率为10Hz的振动能量和总的振动能量与振动平台处相比,都会升高,但是频率为10Hz的振动能量占总的振动能量的百分比基本是保持不变的。全身振动训练过程中,受试者小腿部绑带和不绑带相比,股内侧肌和股外侧肌频率为10Hz的振动在人体垂直轴振动方向的能量与水平面内振动方向的能量的百分比不会发生明显改变;股内侧肌和股外侧肌频率为10Hz的振动相对能量和总的振动相对能量都会上升;股内侧肌和股外侧肌表面肌电信号积分肌电值也都会上升。全身振动训练过程中,受试者小腿部绑带,股内侧肌的表面肌电积分肌电值与频率为10Hz的振动相对能量存在显著相关性(R=0.69,p=0.03),与总的振动相对能量也存在显著相关性(R=0.68,P=0.03);股外侧肌的表面肌电积分肌电值与频率为10Hz的振动相对能量和总的振动相对能量都未发现显著性相关。研究结论:全身振动训练过程中,在小腿部绑带,可以提高大腿部股内侧肌和股外侧肌的肌肉活动度,为全身振动训练过程中受试者通过小腿部绑带来提高股内侧肌和股外侧肌放松训练效果提供理论依据。
[Abstract]:The purpose of the study was to investigate the effect of the electrical signal on the surface electromyographic signals of the medial and lateral muscles of the thigh section of the thigh after the application of the pressure of 150 mm Hg and the limitation of the activity of the lower leg muscles during the whole body vibration training. the occurrence of vibration reflection is verified by comparing the change of the electrical signal of the surface of the large leg to the front and back of the small leg band. Methods: Three experimental subjects were randomly selected to make the maximum self-contraction of the medial and lateral muscles of the thigh, and the electrical signals of the surface were collected. 10 healthy male subjects, age (25. 50, 0. 52 years), height (173.60/ 5. 10cm), and body weight (69. 40, 8. 11kg), were randomly selected. There was no history of injury and injury in the lower limbs of the experimental object. There was no strenuous exercise in three days before the start of the experiment to eliminate the effect on the experimental results. the subject is upright on the vibration platform under the four experimental conditions of the non-vibration non-binding band, the vibration non-binding band, the non-vibration band and the vibration band (the frequency of the vibration platform is 10Hz, is suitable for muscle relaxation training), and the acceleration signals and the surface electromyographic signals of the medial and lateral muscles of the thigh are tested, and an acceleration signal of the heel part and the vibration platform. the processing process of the acceleration signal is to directly carry out fast Fourier transform on the acceleration signal in the three-axis direction to obtain the acceleration spectrum graph in the three-axis direction, and the percent of the vibration energy on the vertical axis and the horizontal plane of the human anatomy is obtained; In addition, the acceleration signal is sequentially subjected to a direct current, one-time integral, a second integration, a fast Fourier transform process, and then the relative energy of the vibration at the frequency of 10Hz is obtained by the square, and the total vibration relative energy and the vibration energy with the frequency of 10Hz account for the total vibration energy. The processing procedure of the myoelectric signal is filtering (the second order with the on-button filter, the on-band is 10-400Hz), the average value is removed, the rectifier and the section are removed, and the electric value of the integral muscle is finally obtained. The frequency of the four parts of the vibration platform, the heel, the medial muscle of the femoral and the lateral muscles of the femoral and the lateral muscles of the femoral and the lateral muscles of the thigh is respectively relative energy of the vibration of 10Hz, and the total vibration is relative to the energy, the percent of the vibration energy of 10hz in the vertical axis of the human body and the percentage of the vibration energy of 10hz on the horizontal surface of the human body, The relative energy of the vibration of 10Hz, the relative energy of the total vibration, the vibration energy of 10Hz and the percent of the total vibration energy are analyzed by the paired sample t test; The two-factor analysis of variance of the medial and lateral muscles of the medial and lateral muscles of the femoral and lateral muscles of the femoral and lateral muscles of the thigh were analyzed by the two-factor analysis of variance in the random region. The relative energy of the electromyographic signal of the surface myoelectric signal and the frequency of 10Hz and the electric value of the surface electromyographic signal and the total vibration relative to the total vibration were analyzed by Pearson's double-variable correlation analysis, respectively. Research results: During the whole body vibration training, the small leg of the subject, whether the strap or the non-strap, the vibration energy of the vibration platform frequency of 10Hz mainly focuses on the vertical axis direction of the human body, the heel part, The frequency of the three parts of the medial and lateral muscles of the thigh is about half the energy in the vibration direction of the vertical axis of the human body and the energy in the vibration direction in the horizontal plane of the human body, Both are raised, but the percentage of the vibrational energy with a frequency of 10Hz is substantially constant as a percentage of the total vibrational energy. During the whole body vibration training, the percentage of the energy in the vibration direction in the vertical axis of the human body and the vibration direction in the horizontal plane does not change significantly as compared with the small leg strap and the non-strap of the subject; The relative energy and total vibrational relative energy of the medial and lateral muscles of the femoral and lateral muscles of the thigh are increased, and the electrical values of the electromyographic signals of the medial and lateral muscles of the femoral and lateral muscles also increase. During the whole body vibration training, there was a significant correlation between the electrical value of the electrical integral of the surface of the inner muscle of the thigh and the vibration relative to the frequency of 10Hz (R = 0.69, p = 0.03), and there was a significant correlation with the total vibration (R = 0.68, P = 0.03). There was no significant correlation between the electrical value of the electrical integral of the surface of the lateral muscle of the thigh and the relative energy of the vibration at the frequency of 10Hz and the relative energy of the total vibration. Conclusion: During the whole body vibration training, the muscle activity of the medial and lateral muscles of the thigh section can be improved, and the theoretical basis for the improvement of the muscle relaxation training effect of the medial and lateral muscles of the thigh is provided for the subjects during the whole body vibration training.
【学位授予单位】：上海体育学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.2
本文编号：2421378
[Abstract]:The purpose of the study was to investigate the effect of the electrical signal on the surface electromyographic signals of the medial and lateral muscles of the thigh section of the thigh after the application of the pressure of 150 mm Hg and the limitation of the activity of the lower leg muscles during the whole body vibration training. the occurrence of vibration reflection is verified by comparing the change of the electrical signal of the surface of the large leg to the front and back of the small leg band. Methods: Three experimental subjects were randomly selected to make the maximum self-contraction of the medial and lateral muscles of the thigh, and the electrical signals of the surface were collected. 10 healthy male subjects, age (25. 50, 0. 52 years), height (173.60/ 5. 10cm), and body weight (69. 40, 8. 11kg), were randomly selected. There was no history of injury and injury in the lower limbs of the experimental object. There was no strenuous exercise in three days before the start of the experiment to eliminate the effect on the experimental results. the subject is upright on the vibration platform under the four experimental conditions of the non-vibration non-binding band, the vibration non-binding band, the non-vibration band and the vibration band (the frequency of the vibration platform is 10Hz, is suitable for muscle relaxation training), and the acceleration signals and the surface electromyographic signals of the medial and lateral muscles of the thigh are tested, and an acceleration signal of the heel part and the vibration platform. the processing process of the acceleration signal is to directly carry out fast Fourier transform on the acceleration signal in the three-axis direction to obtain the acceleration spectrum graph in the three-axis direction, and the percent of the vibration energy on the vertical axis and the horizontal plane of the human anatomy is obtained; In addition, the acceleration signal is sequentially subjected to a direct current, one-time integral, a second integration, a fast Fourier transform process, and then the relative energy of the vibration at the frequency of 10Hz is obtained by the square, and the total vibration relative energy and the vibration energy with the frequency of 10Hz account for the total vibration energy. The processing procedure of the myoelectric signal is filtering (the second order with the on-button filter, the on-band is 10-400Hz), the average value is removed, the rectifier and the section are removed, and the electric value of the integral muscle is finally obtained. The frequency of the four parts of the vibration platform, the heel, the medial muscle of the femoral and the lateral muscles of the femoral and the lateral muscles of the femoral and the lateral muscles of the thigh is respectively relative energy of the vibration of 10Hz, and the total vibration is relative to the energy, the percent of the vibration energy of 10hz in the vertical axis of the human body and the percentage of the vibration energy of 10hz on the horizontal surface of the human body, The relative energy of the vibration of 10Hz, the relative energy of the total vibration, the vibration energy of 10Hz and the percent of the total vibration energy are analyzed by the paired sample t test; The two-factor analysis of variance of the medial and lateral muscles of the medial and lateral muscles of the femoral and lateral muscles of the femoral and lateral muscles of the thigh were analyzed by the two-factor analysis of variance in the random region. The relative energy of the electromyographic signal of the surface myoelectric signal and the frequency of 10Hz and the electric value of the surface electromyographic signal and the total vibration relative to the total vibration were analyzed by Pearson's double-variable correlation analysis, respectively. Research results: During the whole body vibration training, the small leg of the subject, whether the strap or the non-strap, the vibration energy of the vibration platform frequency of 10Hz mainly focuses on the vertical axis direction of the human body, the heel part, The frequency of the three parts of the medial and lateral muscles of the thigh is about half the energy in the vibration direction of the vertical axis of the human body and the energy in the vibration direction in the horizontal plane of the human body, Both are raised, but the percentage of the vibrational energy with a frequency of 10Hz is substantially constant as a percentage of the total vibrational energy. During the whole body vibration training, the percentage of the energy in the vibration direction in the vertical axis of the human body and the vibration direction in the horizontal plane does not change significantly as compared with the small leg strap and the non-strap of the subject; The relative energy and total vibrational relative energy of the medial and lateral muscles of the femoral and lateral muscles of the thigh are increased, and the electrical values of the electromyographic signals of the medial and lateral muscles of the femoral and lateral muscles also increase. During the whole body vibration training, there was a significant correlation between the electrical value of the electrical integral of the surface of the inner muscle of the thigh and the vibration relative to the frequency of 10Hz (R = 0.69, p = 0.03), and there was a significant correlation with the total vibration (R = 0.68, P = 0.03). There was no significant correlation between the electrical value of the electrical integral of the surface of the lateral muscle of the thigh and the relative energy of the vibration at the frequency of 10Hz and the relative energy of the total vibration. Conclusion: During the whole body vibration training, the muscle activity of the medial and lateral muscles of the thigh section can be improved, and the theoretical basis for the improvement of the muscle relaxation training effect of the medial and lateral muscles of the thigh is provided for the subjects during the whole body vibration training.
【学位授予单位】：上海体育学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.2
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