Novel Optical Tracking-based Three-dimensional Measurement of Cervical Range of Motion

• Kato So

  Department of Orthopaedic Surgery, the University of Tokyo

• Fujiwara Sayaka

  Department of Rehabilitation Medicine, the University of Tokyo

• Nishizaka Chika

  Department of Rehabilitation Medicine, the University of Tokyo

• Ushikubo Tomohiro

  Anima, Co., Ltd.

• Oshima Yasushi

  Department of Orthopaedic Surgery, the University of Tokyo

• Taniguchi Yuki

  Department of Orthopaedic Surgery, the University of Tokyo

• Matsubayashi Yoshitaka

  Department of Orthopaedic Surgery, the University of Tokyo

• Okamoto Naoki

  Department of Orthopaedic Surgery, the University of Tokyo

• Oguchi Fumihiko

  Department of Orthopaedic Surgery, the University of Tokyo

• Sakamoto Ryuji

  Department of Orthopaedic Surgery, the University of Tokyo

• Doi Toru

  Department of Orthopaedic Surgery, the University of Tokyo

• Nakajima Koji

  Department of Orthopaedic Surgery, the University of Tokyo

• Haga Nobuhiko

  Department of Rehabilitation Medicine, the University of Tokyo

• Tanaka Sakae

  Department of Orthopaedic Surgery, the University of Tokyo

Bibliographic Information

Other Title

• モーションキャプチャーによる動作解析を用いた頚椎可動域の3次元的計測

Abstract

Introduction: Optical tracking-based motion capture is a non-invasive, convenient, and versatile technology for assessment of body movements. In the present study, attempts were made to establish a novel measurement method for cervical range of motion that is clinically reliable and physician friendly in the actual clinical setting using the optical tracking system. Methods: Eight healthy volunteers were recruited. Under direct instruction from an examiner, the participants in the upright sitting position performed maximum flexion/extension, left/right rotation, and left/right lateral bending; these were captured on a 100-Hz infrared camera as the motion of five surface markers placed on the head in relation to three markers placed on the bilateral acromia and sternoclavicular joint as the trunk segment. A three-dimensional model was created to analyze their motions along three orthogonal axes. One examiner tested a participant twice at an interval of minimum 1 day. Results: Five males and three females aged 29-40 years were included in the study. With the initial status defined as neutral position, the average flexion was 65°, extension was 47°, right/left rotation was 74°/76°, and right/left lateral bending was 42°/44°. Intra-class correlation (ICC; 1,1) was 0.42-0.89, showing that intra-rater reliability could be moderate for some parameters. On the other hand, the range of motion for flexion/extension, rotation, and side bending averaged 112°, 150°, and 86°, respectively, and the results showed high reproducibility with ICC (1,1) ranging from 0.73 to 0.86. Conclusions: Three-dimensional optical tracking-based motion capture was performed to assess cervical range of motion in eight healthy volunteers.

Journal

• Journal of Spine Research

  Journal of Spine Research 11 (9), 1101-1106, 2020-09-20

  The Japanese Society for Spine Surgery and Related Research

Keywords

• motion analysis
• range of motion
• cervical spine

Details

• CRID: 1390848647550976768
• NII Article ID: 130007906251
• DOI: 10.34371/jspineres.2020-0018
• ISSN: 24351563
• ISSN: 18847137
• Web Site: https://search.jamas.or.jp/link/ui/2021073284
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed