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您的检索式：作者名="Patrick R.Davis"
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| 1 | Comparison of the VO_(2)Master Pro and Cosmed K5 During Walking,Jogging,and Running显示文摘Aim Portable devices that accurately detect the composition of expired gases and changes in VO_(2)open new possibilities in research methodology and accessibility.Purpose The purpose of this study was to compare the oxygen consumption(VO_(2))measurements of the VO_(2)Master Pro(VM)to the Cosmed K5(K5)during walking,jogging,and running in field and lab conditions.Methods Twelve proficient runners,with a current 10 k pace of≥11.29 km/h,performed 3 matched intervals at 3 different speeds(4.82,8.05,11.29 km/h)on a treadmill and on an outdoor track.An airflow test was also performed on both devices by pumping air through the devices using a 3 L syringe timed to a metronome at 15,25,and 35 beats/min.Results The VM did not report walking data for most participants.During treadmill running,there were significant differences in VO_(2)(47.86±3.94 vs.29.56±4.15 mL/kg/min),ventilation(V_(e))(71 vs.57 mL/min),and tidal volume(TV)(1.89 vs.1.56 L)between the K5 and VM respectively(P<0.05).Outdoor analysis also showed significant differences between devices in VO_(2),V_(e),and TV(P<0.05).The airflow test showed significant differences between the devices in V_(e)and TV(P<0.05).Conclusion These results suggest that there are significant discrepancies between the K5 and the VM,likely due to differ-ences in TV measurement. | Alex Toulouse Dustin Joubert Gary Oden Patrick R.Davis | 2022 | Journal of Science in Sport and Exercise2022，4，2： | 0 |
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