Beaumont M, Kerautret G, Peran L, Pichon R, Le Ber C, Cabillic M
Service de réhabilitation respiratoire, centre hospitalier des Pays-de-Morlaix, Kersaint Gilly, BP 97237, 29672 Morlaix cedex, France; Unité de recherche EA3878 (groupe d'étude de la thrombose de Bretagne-Occidentale), CHU de Brest, 29200 Brest, France.
Institut régional de formations aux métiers de la rééducation et de la réadaptation des Pays-de-la-Loire, 54, rue de la Baugerie, 44230 Saint-Sébastien-sur-Loire, France.
Rev Mal Respir. 2017 Nov;34(9):1000-1006. doi: 10.1016/j.rmr.2016.11.004. Epub 2017 Oct 13.
Patients with COPD frequently have lower strength and endurance in their lower limbs compared to healthy subjects and evaluation of their quadriceps strength is recommended in practice. The handheld dynamometer has been validated and is easy to use for this measurement but its reproducibility has never been studied for endurance evaluation and only poorly for strength. The objective of this study was to estimate the inter and intra-operator reproducibility of maximal voluntary strength and endurance measurements of the quadriceps with a handheld dynamometer in patients with COPD.
The measurements of maximal voluntary strength and endurance were performed with a single handheld dynamometer using isometric contraction. Three measurement sessions were undertaken, separated by 24hours. The intra- and interoperator reproducibility were estimated by calculation of the intraclass correlation coefficient.
Overall, 21 patients were included in the study. The intraclass correlation coefficient calculated for the maximal voluntary strength for intra and interoperator reliability ranged between 0.95 and 0.99. For endurance, the coefficient for intra-operator reliability was 0.81 and the two for interoperator reliability were 0.69 and 0.77.
The handheld dynamometer allows an excellent inter and intra-operator reproducibility for the measurement of quadricipital maximal voluntary strength and a correct to excellent reproducibility for the measurement of quadricipital endurance. This tool may be used for the evaluation of quadriceps strength in clinical practice in COPD patients, particularly during rehabilitation.
与健康受试者相比，慢性阻塞性肺疾病（COPD）患者的下肢力量和耐力通常较低，因此在实际操作中建议对其股四头肌力量进行评估。手持测力计已经过验证，易于用于此项测量，但从未对其在耐力评估中的再现性进行研究，在力量评估方面的再现性也很差。本研究的目的是评估使用手持测力计对COPD患者股四头肌最大自主力量和耐力测量的操作者间和操作者内再现性。
使用单个手持测力计通过等长收缩进行最大自主力量和耐力测量。进行了三个测量阶段，间隔24小时。通过计算组内相关系数来评估操作者内和操作者间的再现性。
总体而言，21名患者纳入了研究。计算得出的操作者内和操作者间最大自主力量可靠性的组内相关系数在0.95至0.99之间。对于耐力，操作者内可靠性系数为0.81，操作者间可靠性的两个系数分别为0.69和0.77。
手持测力计在测量股四头肌最大自主力量时具有出色的操作者间和操作者内再现性，在测量股四头肌耐力时具有良好至出色的再现性。该工具可用于COPD患者临床实践中股四头肌力量的评估，尤其是在康复期间。
