Validity of the revised Ekblom Bak cycle ergometer test in adults
Validity of the revised Ekblom Bak cycle ergometer test in adults
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DOI：
10.1007/s00421-016-3412-0
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发表时间：
2016-09-01
影响因子：
3
通讯作者：
Ekblom, Bjorn
中科院分区：
文献类型：
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作者：
Bjorkman, Frida;Ekblom-Bak, Elin;Ekblom, Bjorn
方法模型组117名男性和100名女性，年龄分别为48.3±15.7岁和46.1±16.8岁，VO(2)max分别为46.6±-11.1和40.4+/-9.6mL kg(-1)min(-1)；交叉验证组(60名男性和55名女性，年龄分别为40.6±-17.1岁和41.6+/-16.7岁)。Vo(2)max 49.0+/-12.1和43.2+/-8.9mLmin(-1)kg(-1))在标准功率(30W)下直接循环4min，然后在较高功率下循环4min。记录每个工作频率下的心率(HR)。此后，参与者完成了分级的最大跑步机测试，以直接测量摄氧量。结果以年龄、单位功率HR变化量(Delta HR/Delta PO)、单位功率变化量(Delta HR/Delta PO)、单位功率变化量(Delta HR/Delta PO)、单位功率功率变化量(Delta HR/Delta PO)、标准功率下HR(HR)为自变量，建立了预测模型，并与原始Ekblom Bak方程和Astrand检验方法进行了比较。最终模型的调整后R-2男性为0.86，女性为0.83。变异系数(CV)为8.7%，L分(-1)为0.28。结论新的EB检验预测方程对不同年龄(20~86岁)和不同体能水平(19~76mLkg(-1)min(-1))的VO(2)最大摄氧量(VO(2)max)提供了一个简便、有效的估算方法。
Purpose To further develop the Ekblom Bak-test prediction equation for estimation of VO(2)max from submaximal cycle ergometry.Methods The model group (117 men and 100 women, aged 48.3 +/- 15.7 and 46.1 +/- 16.8 years, VO(2)max 46.6 +/- 11.1 and 40.4 +/- 9.6 mL kg(-1) min(-1), respectively) and the cross-validation group (60 men and 55 women, aged 40.6 +/- 17.1 and 41.6 +/- 16.7 years, VO(2)max 49.0 +/- 12.1 and 43.2 +/- 8.9 mL min(-1) kg(-1), respectively) performed 4 min of cycling on a standard work rate (30 W) directly followed by 4 min on a higher work rate. Heart rate (HR) at each work rate was recorded. Thereafter, participants completed a graded maximal treadmill test for direct measurement of oxygen uptake. The new prediction equation was cross-validated and accuracy compared with the original Ekblom Bak equation as well as by the Astrand test method.Results The final sex-specific regression models included age, change in HR per-unit change in power (Delta HR/Delta PO), the difference in work rates (Delta PO), and HR at standard work rate as independent variables. The adjusted R-2 for the final models were 0.86 in men and 0.83 in women. The coefficient of variation (CV) was 8.7 % and SEE 0.28 L min(-1). The corresponding CV and SEE values for the EB-test(2012) and the strand tests were 10.9 and 18.1 % and 0.35 and 0.48 L min(-1), respectively.Conclusion The new EB-test prediction equation provides an easy administered and valid estimation of VO(2)max for a wide variety of ages (20-86 years) and fitness levels (19-76 mL kg(-1) min(-1)).