青春早期前兒童在Bruce及Bruce Ramp兩種運動測試中運動反應和最大攝氧量的比較

Comparison of the Bruce and Bruce Ramp Protocols in Exercise Response and Maximal Oxygen Consumption in Children before Early Pubertal Stage

蔡孟書(Meng-Shu Tsai) ； 蔡昀萍(Yun-Ping Tsai) ； 吳英黛(Ying-Tai Wu)

《台灣醫學》 12卷3期 (2008/05) Pp. 267-274

https://doi.org/10.6320/FJM.2008.12(3).01

摘要

Exercise test is indicated to measure exercise capacity and assess exercise-related symptoms. Bruce protocol is commonly used that increases speed and grade every 3 minutes, while the Bruce Ramp protocol has gradual increase in intensity usually every 15 seconds. The purpose of this study was to compare the exercise responses and maximal oxygen consumption by using Bruce and Bruce Ramp protocols in children before early pubertal stage. We also compared the rating of perceived exertion (RPE) and pictorial children's effort rating table (PCERT) during two exercise tests. Fifteen children were recruited and completed the study. The testing order was randomly assigned and the two tests completed within one week. Paired t-test was performed to compare the differences of the cardiopulmonary responses and maximal oxygen consumption between two test protocols, while two-way repeated measure ANOVA was used to analyze subjects' perception of exertion by RPE and PCERT. The result revealed that the duration of exercise testing for Bruce protocol was shorter than the Bruce Ramp protocol (9.5±1.8 vs.10.7±1.7 minutes). Subjects achieved higher oxygen consumption in the 3rd, 6th, 9th minutes and maximal oxygen consumption (36.7±6.8 vs. 32.6±8.2 mL•kg^(-1)•min^(-1), p＜0.05) by using Bruce protocol compared to the Bruce Ramp protocol. There were no differences between RPE and PCERT either by Bruce or Bruce Ramp exercise testing protocol. In conclusion, both protocols produced test durations between 8-12 minutes that was recommended for an exercise test. Maximal oxygen consumption measured by Bruce protocol was higher and the test duration was shorter compared with the Bruce Ramp protocol in our subjects. Bruce protocol is recommended for healthy children before early pubertal stage in exercise test.

關鍵字

兒童 ； 運動測試 ； Bruce程式 ； Bruce Ramp程式

並列摘要

Exercise test is indicated to measure exercise capacity and assess exercise-related symptoms. Bruce protocol is commonly used that increases speed and grade every 3 minutes, while the Bruce Ramp protocol has gradual increase in intensity usually every 15 seconds. The purpose of this study was to compare the exercise responses and maximal oxygen consumption by using Bruce and Bruce Ramp protocols in children before early pubertal stage. We also compared the rating of perceived exertion (RPE) and pictorial children's effort rating table (PCERT) during two exercise tests. Fifteen children were recruited and completed the study. The testing order was randomly assigned and the two tests completed within one week. Paired t-test was performed to compare the differences of the cardiopulmonary responses and maximal oxygen consumption between two test protocols, while two-way repeated measure ANOVA was used to analyze subjects' perception of exertion by RPE and PCERT. The result revealed that the duration of exercise testing for Bruce protocol was shorter than the Bruce Ramp protocol (9.5±1.8 vs.10.7±1.7 minutes). Subjects achieved higher oxygen consumption in the 3rd, 6th, 9th minutes and maximal oxygen consumption (36.7±6.8 vs. 32.6±8.2 mL•kg^(-1)•min^(-1), p＜0.05) by using Bruce protocol compared to the Bruce Ramp protocol. There were no differences between RPE and PCERT either by Bruce or Bruce Ramp exercise testing protocol. In conclusion, both protocols produced test durations between 8-12 minutes that was recommended for an exercise test. Maximal oxygen consumption measured by Bruce protocol was higher and the test duration was shorter compared with the Bruce Ramp protocol in our subjects. Bruce protocol is recommended for healthy children before early pubertal stage in exercise test.

並列關鍵字

children ； exercise testing ； Bruce protocol ； Bruce Ramp protocol