RESEARCH: Range of motion assessment of the shoulder and elbow joints using a motion sensing input device: A pilot study.

Technol Health Care. 2014 Jun 4. [Epub ahead of print]

Hawi N, Liodakis E, Musolli D, Suero EM, Stuebig T, Claassen L, Kleiner C, Krettek C, Ahlers V, Citak M.

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Motion sensing input devices could provide a practical and low-cost alternative method for repeated range of motion measurements. This study aimed to assess the reliability, accuracy and time requirements of a motion sensing input device (Microsoft Kinect) for ROM measurements comparing it with goniometer based measurements and subjective estimation.
Full ROM was measured in 14 shoulder and elbow joints using the different methods. The order was randomly selected and each movement was measured twice. The results were recorded in degrees and the time measured in seconds.
In general, there was a poor to moderate agreement between the Kinect system compared to the goniometer. There was a good agreement between the goniometer-based and the subjective technique. The Kinect-based technique showed excellent test-retest reliability.
The Kinect system showed good test-retest reliability, but lower accuracy compared to goniometer-based measurements. Improvements in patient positioning and measurement protocol standardization must be made before its implementation in clinical practice.
Kinectâ„¢; Motion detection; goniometer; range of motion (ROM)

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