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Stability of relative oxygen pulse curve during repeated maximal cardiopulmonary testing in professional soccer players

机译:职业足球运动员反复进行最大心肺测试过程中相对氧气脉冲曲线的稳定性

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During cardiopulmonary exercise testing (CPET), stroke volume can be indirectly assessed by O2 pulse profile. However, for a valid interpretation, the stability of this variable over time should be known. The objective was to analyze the stability of the O2 pulse curve relative to body mass in elite athletes. VO2, heart rate (HR), and relative O2 pulse were compared at every 10% of the running time in two maximal CPETs, from 2005 to 2010, of 49 soccer players. Maximal values of VO2 (63.4 ± 0.9 vs 63.5 ± 0.9 mL O2?kg-1?min-1), HR (190 ± 1 vs188 ± 1 bpm) and relative O2 pulse (32.9 ± 0.6 vs 32.6 ± 0.6 mL O2?beat-1?kg-1) were similar for the two CPETs (P > 0.05), while the final treadmill velocity increased from 18.5 ± 0.9 to 18.9 ± 1.0 km/h (P
机译:在心肺运动测试(CPET)期间,可通过O2脉冲曲线间接评估中风量。但是,为了有效解释,应该知道此变量随时间的稳定性。目的是分析精英运动员中O2脉冲曲线相对于体重的稳定性。从2005年至2010年,对49位足球运动员的两个最大CPET,在每10%的跑步时间中比较了VO2,心率(HR)和相对O2脉冲。 VO2(63.4±0.9 vs 63.5±0.9 mL O2?kg-1?min-1),HR(190±1 vs188±1 bpm)和相对O2脉冲(32.9±0.6 vs 32.6±0.6 mL O2?beat)的最大值两种CPET的-1?kg-1)相似(P> 0.05),而最终跑步机速度从18.5±0.9增至18.9±1.0 km / h(P

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