Commonly Exercise Stress Test Methodology For Healthy Middle-aged People In Haidian District, Beijing

The purpose of this study is to determine the best exercise test that is safe, valid and convenient for the middle-aged healthy people. The total number of the subjects is 97(58males and 39females) in Haidian district of Beijing, and they are 45-60 years old. All the subjects took the bicycle graded exercise testing (BGXT). As comparable, 30subjects took the step testing of quadratic loads (ST), and 20 of them took a treadmill graded exercise testing (TGXT). The results show that there is no significant difference in maximal heart rate (HRmax) between males and females, and it can be calculated from the formula 220-age. But the males'functional capacity (F.C.) (BGXT 6.85±1.27, TGXT 11.27±1.53) is significantly different from the females'(BGXT6.23±1.17, TGXT10.15±0.69). The measured F.C. from the BGXT (males 6.85±1.27, females 6.23±1.17) is significantly lower than that from the TGXT (males 11.27±1.53, females 10.15±0.69). So we establish a correctional formula (males F.C. =2.240+0.763X, females F.C. =6.664+0.527X). But there is no significant difference in F.C. from TGXT and that predicted from ST (males 10.33±2.06, females 9.36±1.45). From BGXT and TGXT we made regressive analysis in test loads & corresponding heart rate (HR) and found an intensity-HR linear equation. CONCLJUSION: There is no significant difference in HRmax , but significant difference in F.C. between males and females. The F.C. from the BGXT is significantly lower than that from the TGXT. So, a correctional formula is established. The F.C. can also be predicted from ST. And an intensity-HR linear equation is found from the test loads & corresponding HR in the BGXT and TGXT.