Rehabilitation Sciences Research Department, Vrije Universiteit Brussel, 1090 Brussels, Belgium.
Clinimetric Group F-14, Department of Physiotherapy, Biomedical Research Institute of Malaga (IBIMA), University of Malaga, 29010 Málaga, Spain.
Sensors (Basel). 2020 Jan 27;20(3):689. doi: 10.3390/s20030689.
The RGB-D camera is an alternative to asses kinematics in order to obtain objective measurements of functional limitations. The aim of this study is to analyze the validity, reliability, and responsiveness of the motion capture depth camera in sub-acute and chronic low back pain patients.
Thirty subjects (18-65 years) with non-specific lumbar pain were screened 6 weeks following an episode. RGB-D camera measurements were compared with an inertial measurement unit. Functional tests included climbing stairs, bending, reaching sock, lie-to-sit, sit-to-stand, and timed up-and-go. Subjects performed the maximum number of repetitions during 30 s. Validity was analyzed using Spearman's correlation, reliability of repetitions was calculated by the intraclass correlation coefficient and the standard error of measurement, and receiver operating characteristic curves were calculated to assess the responsiveness.
The kinematic analysis obtained variable results according to the test. The time variable had good values in the validity and reliability of all tests (r = 0.93-1.00, (intraclass correlation coefficient (ICC) = 0.62-0.93). Regarding kinematics, the best results were obtained in bending test, sock test, and sit-to-stand test (r = 0.53-0.80, ICC = 0.64-0.83, area under the curve (AUC) = 0.55-84).
Functional tasks, such as bending, sit-to-stand, reaching, and putting on sock, assessed with the RGB-D camera, revealed acceptable validity, reliability, and responsiveness in the assessment of patients with low back pain (LBP).
ClinicalTrials.gov NCT03293095 "Functional Task Kinematic in Musculoskeletal Pathology" September 26, 2017.
RGB-D 相机是评估运动学的一种替代方法，可以获得功能障碍的客观测量结果。本研究旨在分析运动捕捉深度相机在亚急性和慢性下腰痛患者中的有效性、可靠性和反应性。
对 30 名（18-65 岁）非特异性腰痛患者进行筛选，在发病后 6 周进行。RGB-D 相机测量值与惯性测量单元进行比较。功能测试包括爬楼梯、弯腰、够袜子、从躺到站、从坐到站和计时起立行走。患者在 30 秒内完成最大重复次数。采用 Spearman 相关分析评估有效性，通过组内相关系数和测量误差标准评估重复可靠性，通过接收者操作特征曲线评估反应性。
根据测试，运动学分析得到了不同的结果。所有测试的时间变量在有效性和可靠性方面都有较好的值（r = 0.93-1.00，组内相关系数（ICC）= 0.62-0.93）。关于运动学，在弯腰测试、袜子测试和从坐到站测试中获得了最佳结果（r = 0.53-0.80，ICC = 0.64-0.83，曲线下面积（AUC）= 0.55-0.84）。
使用 RGB-D 相机评估的弯曲、从坐到站、够取和穿上袜子等功能任务，在下腰痛（LBP）患者评估中显示出可接受的有效性、可靠性和反应性。
ClinicalTrials.gov NCT03293095“肌肉骨骼病理学中的功能任务运动学”，2017 年 9 月 26 日。
