| Research objective: strength training occupies a very important position in competitive sports.The core of strength training is explosive force.The fundamental purpose of explosive force training is to develop explosive power.That is,to improve the output of human power by overcoming certain resistance,In order to obtain better training results,how to improve the maximum power output of athletes has always been a hot topic in the field of physical training.Traditional high-power training is the number of times of continuous completion in the group,and the degree of body fatigue is proportional to the number of groups.The speed of action will slow down and affect the output of action power.Therefore,this paper is based on the traditional training of the two movements,which are high overturn and half squat jump.Based on the study of interval time in the group,the interval time of explosive force training is designed scientifically,the output of maximum action power is improved effectively,and the loss rate of action power is reduced reasonably.Effectively improve the effectiveness of strength training for athletes.Research object and method: taking 10 students of special education in Xi'an Institute of physical Education as the research object,the best interval time of the maximum action power of high overturn and half squat jump was tested and analyzed by the methods of literature,experiment and mathematical statistics.Results of the study:(1)Different intervals have a significant effect on the total power output of the weight-bearing half-squat jump.There was no significant difference in total power between 0s and 5S(0.105>0.05),0s and 10s(0.012<0.05)had significant differences,0s and 15s(0.001<0.01)had significant differences,and there was no significant difference in total power between 0s and 15s(0.001<0.01).There were significant differences in total power of 0s weight negative squatting(4870.2 W),0s and 5S(0.027<0.05),10s(0.018<0.05)and 15s(0.005<0.01).There were significant differences in 0s and 15s;there was no significant difference between the second interval and the maximum total 15 s total power(6003.1).(2)The average rate output of weight-bearing half squat jump was significantly affected by different intervals.There is a significant difference in the average power of 0s and 10s(0.012<0.05),and there is a significant difference between 0s and 15s(0.001<0.01),and there is nosignificant difference between 0s and 5S(0.105>0.05).There is no significant difference between 0s and 5S(0.105>0.05),and there is no significant difference between the maximum average power of secondary intermittent 15 s,and there is no significant difference between 0s and 15s(0.001<0.01).There were significant differences in the average power of the half squat jump of0 s,0s and 5S(0.027<0.05),10s(0.018<0.05)and 15s(0.005<0.01),and there was a significant difference in 0s and 15 s,and there was no significant difference in the average power between the second intermission and the half squat jump.(3)There was a significant influence on the peak rate output of semi-squatting and high-turning and negative-weight semi-squatting.There was a significant difference in peak power(567.5W),0s and 10s(0.038<0.05),and there was a significant difference between 0s and 15s(0.006<0.01),and there was no significant difference between 0s and 5S(0.253>0.05).There was no significant difference in peak power between 0s and 5S(0.253>0.05),and there was no significant difference between the 0s and 15s(0.006<0.01).There was a significant difference in the peak power of the intermittent 0s load half squat jump at the secondary interval(667.7W),and there was significant difference between 0s and 5S(0.039<0.05),10s(0.024<0.05)and 15s(0.01<0.05).The peak power of the second interval 15 s weight-bearing half squat jump was the maximum(805.3W).There was no significant difference between the 15 s and the 15 s.(4)Different intervals have a significant effect on the output of attenuation rate of weight-bearing half-squat jump.There were significant differences between 0s and 5S(0.046<0.05),10s(0.043<0.05)and 15s(0.001<0.01)when the attenuating rate of 0s(0.046<0.05),10s(0.043<0.05)and 15s(0.001<0.01)were the most significant differences,and there was a very significant difference between 15s(0.001<0.01)and 15s(13%).The attenuating rate of the half squatting jump of 0s,0s and 5S(0<0.01),10s(0<0.01)and 15s(0<0.01)had the very significant difference,and the attenuation rate of the semi squat jump at the secondary interval was the least(13%),and there was no significant difference between 15 s and 5S(0.401>0.05)and 0<0.01.The study concluded that:(1)The power retention effect of high overturn and half squat jump with load is better than that without interval.With the increase of interval time,the total power,average power and peak power of the exercises are higher than those of the non-interval training.(2)In the mode of interval training,the longer the interval is,the lower the attenuation rate of action power is.When the interval is 15 seconds,the power output is the largest and the power attenuation rate is the lowest.(3)In the training of explosive force,such as snatch,high overturn,barbell squat jump and so on,the interval training method is more favorable to the maintenance of action power,and the training effect is better than that without interval training in the traditional group. |
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