Comparing two methods of exercise intensity indexes in asthma patients

摘要

Background and Aim: American College of Sport Medicine (ACSM) assumes that %HRR provides the same intensity as the equivalent %VO2Max. But, recently some studies suggested that some factors particularly kind of disease is influenced the relationship between exercise intensity indexes. Material and methods: Thirty adult males with asthma performed a cycle ergometery test according YMCA protocol and heart rate and VO2 of each stages of test measured and monitored. HR and VO2 were used for calculation %HRR, %VO2max, and %VO2R in each stage. Liner regression analysis used for determine relations between %HRR, %VO2max, and %VO2R. Results: The correlation between %VO2max and %HRR was lineally but the regression line is not according to the identity. In addition, the data showed that in these patients the correlation between %VO2Max and %VO2Reserve is perfectly. Conclusion: Our finding demonstrated that percentage of maximal oxygen uptake (%VO2Max) provides the same intensity as the equivalent percentage of maximal oxygen uptake reserve.