心力衰竭患者中穿梭试验和6分钟步行试验与测量的峰值耗氧量的比较。
A comparison of the shuttle and 6 minute walking tests with measured peak oxygen consumption in patients with heart failure.
作者信息
Green D J, Watts K, Rankin S, Wong P, O'Driscoll J G
机构信息
Department of Human Movement and Exercise Science, The University of Western Australia, Nedlands.
出版信息
J Sci Med Sport. 2001 Sep;4(3):292-300. doi: 10.1016/s1440-2440(01)80038-4.
This study investigated the use of an incremental, externally-paced 10 m shuttle walk test (SWT) as an objective, reliable and predictive test of functional capacity in patients with heart failure (CHF). The SWT was compared to a 6 minute walk test (6WT) and a maximal symptom-limited treadmill peak oxygen consumption (VO2peak) test. Experiment 1 examined the reproducibility of the SWT. Two SWF trials were performed and distance ambulated (DA), heart rate (HR) and rate of perceived exertion (RPE) results compared. In experiment 2, SWT, 6WT, and VO2 peak tests were performed and HR. RPE and ambulatory VO2 compared. The SWT demonstrated strong test/retest reliability for DA (r = 0.98). HR (r = 0.96) and RPE (r = 0.89). Treadmill VO2 peak was significantly correlated with DA during the SWT (r = 0.83, P < 0.05), but not the 6WT. SWT peak VO2 (18.5 +/- 1.8 ml.kg(-1) x min(-1)) and treadmill VO2 peak (18.3 +/-2.0 ml.kg(-1) x min(-1)) were also highly correlated (r = 0.78, P < 0.05). Conversely, 6WT peak VO2 and treadmill VO2 peak were not significantly correlated. This study suggests the SWT is a reliable, objective test, highly predictive of VO2 peak which may be a more optimal field exercise test than the self paced 6WT.
本研究调查了递增式、外部 pacing 的 10 米往返步行试验（SWT）作为心力衰竭（CHF）患者功能能力的客观、可靠且具有预测性的测试方法。将 SWT 与 6 分钟步行试验（6WT）以及最大症状限制的跑步机峰值耗氧量（VO2peak）测试进行比较。实验 1 检验了 SWT 的可重复性。进行了两次 SWF 试验，并比较了步行距离（DA）、心率（HR）和自觉用力程度（RPE）结果。在实验 2 中，进行了 SWT、6WT 和 VO2 峰值测试，并比较了 HR、RPE 和动态 VO2。SWT 在 DA（r = 0.98）、HR（r = 0.96）和 RPE（r = 0.89）方面表现出很强的重测信度。跑步机 VO2 峰值与 SWT 期间的 DA 显著相关（r = 0.83，P < 0.05），但与 6WT 不相关。SWT 峰值 VO2（18.5 +/- 1.8 ml·kg⁻¹·min⁻¹）与跑步机 VO2 峰值（18.3 +/- 2.0 ml·kg⁻¹·min⁻¹）也高度相关（r = 0.78，P < 0.05）。相反，6WT 峰值 VO2 与跑步机 VO2 峰值无显著相关性。本研究表明，SWT 是一种可靠、客观的测试，对 VO2 峰值具有高度预测性，可能是比自我 pacing 的 6WT 更优的现场运动测试。
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