Eike Gert Sander Hamre, Aadland Eivind, Blom Ellen Eimhjellen, Riiser Amund
Department of Sport, Food and Natural Sciences, Faculty of Teacher Education, Arts and Sports, Western Norway University of Applied Sciences, Sogndal, Norway.
Front Sports Act Living. 2021 Apr 22;3:642538. doi: 10.3389/fspor.2021.642538. eCollection 2021.
This study aims to validate a submaximal treadmill walking test for estimation of maximal oxygen consumption (VO) in individuals at high risk of or with chronic health conditions. Eighteen participants (age 62 ± 16 years; VO 31.2 ± 5.9 ml kg min) at high risk of getting or with established chronic diseases performed two valid modified Balke treadmill walking protocols, one submaximal protocol, and one maximal protocol. Test duration, heart rate (HR), and rate of perceived exertion (RPE) were measured during both tests. VO was measured during the maximal test. VO was estimated from the submaximal test by multiple regression using time to RPE ≥ 17, gender, age, and body mass as independent variables. Model fit was reported as explained variance ( ) and standard error of the estimate (SEE). The model fit for estimation of VO from time to RPE ≥ 17 at the submaximal test, body mass, age, and gender was = 0.78 (SEE = 3.1 ml kg min, ≤ 0.001). Including heart rate measurement did not improve the model fit. The submaximal walking test is feasible and valid for assessing cardiorespiratory fitness in individuals with high risk of or chronic health conditions.
本研究旨在验证一种次极量跑步机步行试验，用于评估具有慢性健康状况或处于高风险的个体的最大摄氧量（VO）。18名有患慢性病风险或已患有慢性病的参与者（年龄62±16岁；VO 31.2±5.9 ml·kg·min）进行了两种有效的改良Balke跑步机步行方案，一种次极量方案和一种极量方案。在两次测试过程中均测量了测试持续时间、心率（HR）和自觉用力程度（RPE）。在极量测试期间测量VO。通过使用达到RPE≥17的时间、性别、年龄和体重作为自变量的多元回归，从次极量测试中估计VO。模型拟合以解释方差（）和估计标准误差（SEE）表示。在次极量测试中，根据达到RPE≥17的时间、体重、年龄和性别估计VO的模型拟合为=0.78（SEE=3.1 ml·kg·min，≤0.001）。纳入心率测量并未改善模型拟合。次极量步行试验对于评估具有慢性健康状况或处于高风险的个体的心肺适能是可行且有效的。
