a Department of Physiotherapy , Northern Health , Epping , Australia.
b School of Allied Health , La Trobe University , Bundoora , Australia.
Disabil Rehabil. 2019 Jul;41(14):1706-1710. doi: 10.1080/09638288.2018.1443160. Epub 2018 Feb 24.
Evaluate intra-rater and inter-rater reliability of the one-repetition maximum strength test in people with chronic heart failure.
Intra-rater and inter-rater reliability study.
A public tertiary hospital in northern metropolitan Melbourne.
Twenty-four participants (nine female, mean age 71.8 ± 13.1 years) with mild to moderate heart failure of any aetiology.
Lower limb strength was assessed by determining the maximum weight that could be lifted using a leg press. Intra-rater reliability was tested by one assessor on two separate occasions . Inter-rater reliability was tested by two assessors in random order.
Intra-class correlation coefficients and 95% confidence intervals were calculated. Bland and Altman analyses were also conducted, including calculation of mean differences between measures ( ) and limits of agreement .
Ten intra-rater and 21 inter-rater assessments were completed. Excellent intra-rater (intra-class correlation coefficient 0.96) and inter-rater (intra-class correlation coefficient 0.93) reliability was found. Intra-rater assessment showed less variability (mean difference 4.5 kg, limits of agreement -8.11 to 17.11 kg) than inter-rater agreement (mean difference -3.81 kg, limits of agreement -23.39 to 15.77 kg).
One-repetition maximum determined using a leg press is a reliable measure in people with heart failure. Given its smaller limits of agreement, intra-rater testing is recommended. Implications for Rehabilitation Using a leg press to determine a one-repetition maximum we were able to demonstrate excellent inter-rater and intra-rater reliability using an intra-class correlation coefficient. The Bland and Altman levels of agreement were wide for inter-rater reliability and so we recommend using one assessor if measuring change in strength within an individual over time.
评估慢性心力衰竭患者 1 次最大重复力量测试的组内和组间可靠性。
组内和组间可靠性研究。
墨尔本北部大都市区的一家公立三甲医院。
24 名参与者（9 名女性，平均年龄 71.8±13.1 岁），患有任何病因引起的轻度至中度心力衰竭。
通过确定使用腿部按压可举起的最大重量来评估下肢力量。组内可靠性由一位评估者在两次不同的时间进行测试。组间可靠性由两位评估者随机顺序进行测试。
计算了组内相关系数和 95%置信区间。还进行了 Bland 和 Altman 分析，包括测量值之间的平均差异（ ）和一致性界限的计算。
完成了 10 次组内和 21 次组间评估。发现了极好的组内（组内相关系数 0.96）和组间（组内相关系数 0.93）可靠性。组内评估的变异性较小（平均差异 4.5 千克，一致性界限-8.11 至 17.11 千克），而组间一致性的差异较大（平均差异-3.81 千克，一致性界限-23.39 至 15.77 千克）。
使用腿部按压确定 1 次最大重复力量是心力衰竭患者的可靠测量方法。鉴于其一致性界限较窄，建议进行组内测试。
使用腿部按压来确定 1 次最大重复力量，我们使用组内相关系数证明了极好的组内和组间可靠性。组间可靠性的 Bland 和 Altman 一致性界限较宽，因此我们建议在个体随时间测量力量变化时，使用一位评估者。
