Research on the Kinematic and Surface Electromyographic Characteristics during the Start Phase of Snowboard Cross Racing for the Disabled
With the concept of"Technology Empowering the Olympics"and the advancement of biomechanical research in Paralympic sports,it is of great significance to enhance the specialized techniques of Chinese Paralympic snowboard athletes during the start phase by using the method of scientific analysis.Videographic analysis,surface electromyography testing,and statistical analysis were employed to examine the kinematics and surface electromyographic characteristics of 7 male athletes from the Beijing Paralympic National Snowboard Training Team.The results showed that athletes of different levels exhibited variations in time taken,average speed,joint angles,and angle amplitude changes during the start phase.Athletes at the UL level demonstrated relatively stable performance,while LL2 level athletes showed more prominent characteristics.Furthermore,different muscle groups played a crucial role during the start phase for athletes of different levels,and there were significant differences in the amplitude peak of muscle electrical activity.Athletes with greater disabilities experienced higher energy expenditure during the start phase.It is recommended for Chinese Paralympic snowboard athletes to further improve their strength qualities,pay attention to their muscle force generation characteristics,strengthen explosive training of the primary force-generating muscles,engage more muscles in the sliding process,and ensure coordination and synchronization of muscles on both sides of the upper limbs.
people with disabilitiessnowboard cross racingstart phasekinematicssurface electromyography testing
万方数据
维普
