Andrade Maricarmen S, Honorato Macarena P, Vargas Javiera P, de Los Angeles Galvez María, Rojas Mariana R
Department of Geriatrics, Clínica Universidad de los Andes, Santiago, Chile.
Department of Geriatrics, Clínica Alemana de Santiago, Vitacura, Chile.
Perioper Med (Lond). 2023 Aug 23;12(1):46. doi: 10.1186/s13741-023-00334-y.
Handgrip strength is a useful measurement of muscle strength and has been proposed as a single predictor of postoperative outcomes in older adults. The aim of this study was to assess the correlation and concordance of Camry digital hand grip dynamometer (EH101) with gold standard Jamar® hydraulic handgrip dynamometer in older adults previous to elective surgery.
A cross-sectional study was conducted on patients ≥ 65 years old admitted to a Chilean private hospital for elective surgery between March 2018 and February 2019. Handgrip strength was assessed 2 times with each hand prior to surgery, using both the Jamar® dynamometer and the Camry digital dynamometer. The highest value of each dynamometer was used for analysis.
We included a total of 220 patients (mean age 73.1 years old ± 6.3). Maximal handgrip strength averaged 26.9 kg ± 9.6 with the Camry dynamometer and 26.9 kg ± 9.7 with the Jamar® dynamometer in the right hand and 25.5 kg ± 9.5 with the Camry dynamometer and 25.7 kg ± 9.2 with the Jamar® dynamometer with the left hand. The difference between both measures did not differ significantly from 0, with Pearson correlation index of 0.95 and Lin's concordance index of 0.95 (p < 0001). The Bland-Altman graphics show that 90% of the measures were inside the confidence limits, without systematic bias.
Camry digital dynamometer is an inexpensive and valid device to measure handgrip strength in older adults previous to elective surgery, compared to the gold standard Jamar® hydraulic handgrip dynamometer.
握力是肌肉力量的一项有用测量指标，并且已被提议作为老年人术后结果的单一预测指标。本研究的目的是评估在择期手术前，凯美瑞数字握力计（EH101）与金标准Jamar®液压握力计在老年人中的相关性和一致性。
对2018年3月至2019年2月期间入住智利一家私立医院进行择期手术的65岁及以上患者进行了一项横断面研究。在手术前，使用Jamar®测力计和凯美瑞数字测力计对每只手的握力进行了2次评估。每次测力计的最高值用于分析。
我们共纳入了220例患者（平均年龄73.1岁±6.3）。右手使用凯美瑞测力计的最大握力平均为26.9千克±9.6千克，使用Jamar®测力计的为26.9千克±9.7千克；左手使用凯美瑞测力计的最大握力平均为25.5千克±9.5千克，使用Jamar®测力计的为25.7千克±9.2千克。两种测量方法之间的差异与0无显著差异，Pearson相关指数为0.95，Lin一致性指数为0.95（p＜0.0001）。Bland-Altman图显示，90%的测量值在置信限内，无系统偏差。
与金标准Jamar®液压握力计相比，凯美瑞数字测力计是一种在择期手术前测量老年人握力的廉价且有效的设备。
