Experimental Research On The Effect Of Grand Dance And Six Character Dance On The HRV And Its STI Of Middle Aged And Aged Females

Purpose: this paper to provide theoretical base and experimental evidence for fitness Qi Gong as an exercise prescription and guidance of fitness Qi Gong by observing the heart rate variability(HRV)and the changes of STI indicator of middle-aged and aged women after their participation in the fitness Qi Gong-Six Character Dance Dance and Qi Gong-Grand Dance for six months and discussing the effect and probable mechanism of these exercises.Method: the subject of this experiment was 60 ordinary middle-aged and aged women in Xi'an.The subjects were randomly divided into Grand Dance group,Six Character Dance group and control group,with 20 in each group.Under the guidance of fitness advisors,the Six Character Dance group and the Grand Dance group exercised with music three times a week,and each time for about one hour,which lasted for six months.The control group kept their old life style without participating in any exercises.The STI and HRV were tested the day before the experiment and the morning after the end of the experiment respectively.Experimental Result:1?After six months of both fitness Qi Gong-Six Character Dance and fitness Qi Gong-Grand Dance exercises shows slightly longer LVET(P > 0.05),slightly shorter PEP(P > 0.05),and LVET/PEP indicator shows significant increase(P <0.05);the LEVET,LVET/PEP indicators of the Six Character Dance group are slightly smaller than that of the Grand Dance group(P>0.05),its PEP is slightly larger than that of the Grand Dance group(P>0.05),but the changes of LVET,PEP,LVET/PEP indicators of the Six Character Dance group are slightly smaller than that of the Grand Dance group(P>0.05).2?After six months of fitness Qi Gong-Six Character Dance and fitness Qi Gong-Grand Dance exercises,the RRN,RRP and RRM indicators of the Six Character Dance group are slightly increased(P>0.05).Its RRM/RRN,SD,RMSSD,pNN50 indicators decreased(P>0.05).The RRN,RRP and RRM indicators of the Grand Dance group are slightly increased(P>0.05)and its RRM/RRN decreased(P>0.05),but its SD,RMSSD and pNN50 indicators show significant decrease(P<0.05).After six months exercises of fitness Qi Gong,the increase of SD,RMSS,Pnn50 indicators are greater than that of Grand Dance group,while other indicators show no obvious differences(P>0.05).Except for RRM indicator,the changes of other time domain indicators of the Six Character Dance group are smaller than thatof the Grand Dance group.3?After six months of fitness exercises,the T.S,LF and HF of the Six Character Dance group are slightly increased(P>0.05),and its LF/HF shows slight decrease(P>0.05).The T.S,LF of the Grand Dance group show significant increase(P<0.05)and its LF/HF are slightly decreased(P>0.05).After six months exercises of fitness Qi Gong,the T.S,LF and HF of the Six Character Dance group are smaller than that of the Grand Dance group,while LF/HF is slightly greater than that of the Grand Dance group.The changes of T.S,LF,HF and LF/HF of the Six Character Dance group are smaller than that of the Grand Dance group.4?The relevance and changes of LVET/PEP and PEP of the subjects of the Six Character Dance group and the Grand Dance group are higher than LVET,while the relevance of TS and LF are higher than HF.But the change of relevance of TS and HF is greater than LF.Conclusion1?Fitness Qi Gong-Six Character Dance and fitness-Grand Dance can improve heart rate variability and the function of heart of the aged and middle aged women.2 ? After six months exercises of fitness Qi Gong,there shows a higher correlation between the function of heart and its ability of autonomic neuromodulation of the aged and middle aged women of the Grand Dance group.3?Compared to the fitness Qi Gong-Six Character Dance,fitness Qi Gong-Grand Dance has a greater impact on the STI and HRV of the aged and middle-aged women.