Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 25720
  Title Validity and reliability of an inertial measurement unit-based 3-dimensional angular measurement of cervical range of motion
Journal J Manipulative Physiol Ther. 2019 Jan;42(1):75-81
Peer Review Yes
Publication Type Article

OBJECTIVE: This study aimed to assess the reliability and validity of an inertial measurement unit (IMU)-based 3-dimensional (3D) angular measurement system for evaluating cervical range of motion.

METHODS: Thirty-three healthy participants (21.9 ± 2.1 years; 162.0 ± 6.0 cm; 55.8 ± 9.0 kg; 21.2 ± 2.4 kg/m2) were evaluated. Kinematic data of the cervical joints were simultaneously obtained using the IMU 3D angular, goniometer, and photographic measurements during cervical flexion (0°, 30°, and 50°), extension (30°, 50°), side-bending (0°, 20°, 40°), and rotation (45°). Test-retest reliability was investigated in each measurement method. Concurrent validity was assessed with the direct comparison between the IMU 3D angular measurement and other methods.

RESULTS: The IMU 3D angular measurement showed mostly good to high test-retest reliability with relatively small standard error of measurement and the minimal detectable change values. The concurrent validity of IMU 3D angular measurements in the cervical range of motion was mostly reasonable. However, the measurement bias between the 2 methods tended to be larger at the end range of each plane.

CONCLUSION: Using the IMU 3D angular measurement in cervical spine is recommended because of its mostly good to high reliability and reasonable validity. However, using the IMU 3D angular measurement at the end range of each plane should be carefully considered owing to the poorer validity.

Author keywords: Imaging, Three-Dimensional, Neck, Cervical Vertebrae, Range of Motion, Articular, Reproducibility of Results

Author affiliations: TLY: Department of Physical Therapy, College of Health & Medical Sciences, Cheongju University, Cheongju, Chungcheongbuk-do, Korea; HNK, JHM: Department of Dental Hygiene, College of Health & Medical Sciences, Cheongju University, Cheongju, Chungcheongbuk-do, Korea

This abstract is reproduced with the permission of the publisher; full text is available by subscription. Click on the above link and select a publisher from PubMed's LinkOut feature.


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