Effects of Variations in Intensity and Duration of Interval Training Programs on Maximum Oxygen Uptake, Hemoglobin, Anaerobic Performance and Anaerobic Threshold

บทคัดย่อ

The objective of this research was to determine the effects of variation in intensity and duration of interval training programs on maximum oxygen uptake, hemoglobin, anaerobic performance and anaerobic threshold. Study samplesconsisted of thirty-two male students ofthe Faculty of Sport Science,Burapha University. The samples were randomly assigned to one of the three programs: 90-95% maximum heart rate (MHR) (1min. and 5min. rest), 80-85% MHR (3min. and 3min. rest) and 70-75% MHR (5min and 1min. rest), respectively, and one group was kept as control. These programs were set at 3 days per week for 8 weeks. The response variables were maximum oxygen uptake, hemoglobin, anaerobic performance and anaerobic threshold. Dependent t-test and one-way ANOVA were utilized for pre-training and post-training data analysis. Significant level was set at .05. The results showed that after 8 weeks of interval training programs, maximum oxygen uptake (Gas analysis method) in group 1 and 2 was significantly increased from 46.57 + 5.13 to 50.10 + 5.94 ml/kg^-1/min^-1 and 46.20 + 4.26 to 49.99 + 3.62ml/kg^-1/min^-1, respectively. For anaerobic threshold (Ventilation equivalent method), only group 2 had a significant increase from 26.88 + 4.71 to 31.35 + 6.57 ml/kg^-1/min^-1. There was no significant difference between pre-training and post-training in every group for hemoglobin (Blood sample method) and anaerobic performance (Wingate anaerobic test). It could be concluded from the existing data that the interval training program at 80-85% MHR 3 minutes and rest 3 minutes could improve maximum oxygen uptake and anaerobic threshold. The interval training program at 90-95% MHR 1 minutes and rest 5 minutes could improve only the maximum oxygen uptake. All of interval training programs could not change in hemoglobin and anaerobic performance. This could be a way of using the interval training programs for improvement of aerobic performance.