Rodrigues Luciana Abrantes, Santos Enzo Gabriel Rocha, Santos Patrícia Seixas Alves, Igarashi Yuzo, Oliveira Luana Karine Resende, Pinto Gustavo Henrique Lima, Santos Lobato Bruno Lopes, Cabral André Santos, Belgamo Anderson, Costa E Silva Anselmo Athayde, Callegari Bianca, Souza Givago Silva
Núcleo de Medicina Tropical, Universidade Federal do Pará, Belém 66050-540, Brazil.
Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém 66050-540, Brazil.
J Pers Med. 2022 Jun 21;12(7):1019. doi: 10.3390/jpm12071019.
Falls represent a public health issue around the world and prevention is an important part of the politics of many countries. The standard method of evaluating balance is posturography using a force platform, which has high financial costs. Other instruments, such as portable devices and smartphones, have been evaluated as low-cost alternatives to the screening of balance control. Although smartphones and wearables have different sizes, shapes, and weights, they have been systematically validated for static balance control tasks. Different studies have applied different experimental configurations to validate the inertial measurements obtained by these devices. We aim to evaluate the concurrent validity of a smartphone and a portable device for the evaluation of static balance control in the same group of participants. Twenty-six healthy and young subjects comprised the sample. The validity for static balance control evaluation of built-in accelerometers inside portable smartphone and wearable devices was tested considering force platform recordings as a gold standard for comparisons. A linear correlation (r) between the quantitative variables obtained from the inertial sensors and the force platform was used as an indicator of the concurrent validity. Reliability of the measures was calculated using Intraclass correlation in a subsample (n = 14). Smartphones had 11 out of 12 variables with significant moderate to very high correlation (r > 0.5, p < 0.05) with force platform variables in open eyes, closed eyes, and unipedal conditions, while wearable devices had 8 out of 12 variables with moderate to very high correlation (r > 0.5, p < 0.05) with force platform variables under the same task conditions. Significant reliabilities were found in closed eye conditions for smartphones and wearables. The smartphone and wearable devices had concurrent validity for the static balance evaluation and the smartphone had better validity results than the wearables for the static balance evaluation.
跌倒在全球范围内都是一个公共卫生问题，预防是许多国家政策的重要组成部分。评估平衡的标准方法是使用测力平台进行姿势描记法，但这种方法成本高昂。其他仪器，如便携式设备和智能手机，已被评估为筛查平衡控制的低成本替代方案。尽管智能手机和可穿戴设备尺寸、形状和重量各异，但它们已针对静态平衡控制任务进行了系统验证。不同的研究采用了不同的实验配置来验证这些设备获得的惯性测量结果。我们旨在评估智能手机和便携式设备在同一组参与者中评估静态平衡控制的同时效度。样本包括26名健康的年轻受试者。以测力平台记录作为比较的金标准，测试了便携式智能手机和可穿戴设备内置加速度计对静态平衡控制评估的效度。从惯性传感器获得的定量变量与测力平台之间的线性相关性（r）用作同时效度的指标。在一个子样本（n = 14）中使用组内相关性计算测量的可靠性。在睁眼、闭眼和单脚站立条件下，智能手机的12个变量中有11个与测力平台变量具有显著的中度到非常高的相关性（r > 0.5，p < 0.05），而在相同任务条件下，可穿戴设备的12个变量中有8个与测力平台变量具有中度到非常高的相关性（r > 0.5，p < 0.05）。在闭眼条件下，智能手机和可穿戴设备的可靠性显著。智能手机和可穿戴设备在静态平衡评估方面具有同时效度，并且在静态平衡评估方面，智能手机的效度结果优于可穿戴设备。
