The Correlation Analysis Research Of Subjective And Objective Index After Of Exhaustive Exercise Fatigue

In the academic practice of exercise fatigue,diversified subjective and objective index is used for helping people especially for athletes and coaches estimate and control quantity,intension and time of exercise.It is important to assign physical fitness,reduce and quicken renew the fatigue in maximum for people.Therefore,it is significant to understand and use these indexes in reason.In this paper we investigate the development of the exercise fatigue and its estimate index,and now athletics team often adopt multi-index to monitor training and match.Therefore,it is important to choose some indexes for excise monitor.Currently we consider that use some indexes which have supernal degree of correlation in estimation of fatigue could make these indexes reference each other and take our results more credible.At the same time, there is lack of research reports of relation between these indexes.Purpose:On the base of the research before,the purpose of our research is testing some subjective and objective index in every period of convalescence after exhaustive exercise fatigue,and discusses their rule of variety and the correlation between physiology-biochemistry index and subjective index through experimental data,it can provide some reference for some more indexes using together.Methods:We took human body as object of the research,and used consistent mode of exercise fatigue according to the precept of Bruce,then took the data of heart rate, RPE15,blood lactic acid,blood ammonia,response time and hand act stability before movement and the same after fatigue in 9 times orderly.Then we took variance and correlation analysis to the data of these 6 indexes by SPSS software.Results:This result of research show that heart rate,RPE15,blood lactic acid,blood ammonia and hand act stability put up a sensitivity to exhaustive exercise fatigue because of their data reach the peak value at the ending moment of sport and then down to normal gradually.But the data of response time did not show the same trend, it present some state of fluctuation.The evaluate objective indexes of exercise fatigue take on high correlation between heart rate,blood lactic acid and blood ammonia,and heart rate take on the most correlation with blood lactic acid.The evaluate subjective indexes of exercise fatigue show some different trend:RPE15 take on some definite correlation with hand act stability,but response time put up a low correlation to others. The research found that there is a notable correlation between heart rate,RPE15, blood lactic acid and blood ammonia,while there is a weak correlation between response time,hand act stability and others. Conclusions:Our conclusion of the research is that heart rate,RPE15,blood lactic acid,blood ammonia and hand act stability put up a sensitivity to exhaustive exercise fatigue in our fatigue mode according to the precept of Bruce.The result approve that heart rate,RPE15,blood lactic acid,blood ammonia and hand act stability can estimate preferably to the degree of exercise fatigue form their point of view,and there is short of evidence to estimate the degree of exercise fatigue by response time with hand act stability together.Thereby,we consider that response time maybe inapplicable to assess exhaustive exercise fatigue.The result clew that we can take some index of high correlation together to estimate the degree of exercise intension and exercise fatigue in the exhausted physical fitness item,such as heart rate,RPE15, blood lactic acid and blood ammonia,and it could help us providing some more exact,general and systemic reference.