The efficacy of a video-based marker-less tracking system for gait analysis. Issue 10 (27th July 2017)
- Record Type:
- Journal Article
- Title:
- The efficacy of a video-based marker-less tracking system for gait analysis. Issue 10 (27th July 2017)
- Main Title:
- The efficacy of a video-based marker-less tracking system for gait analysis
- Authors:
- Ong, Alex
Harris, Ian Sujae
Hamill, Joseph - Abstract:
- Abstract: Most clinical gait analyses are conducted using motion capture systems which track retro-reflective markers that are placed on key landmarks of the participants. An alternative to a three-dimensional (3D) motion capture, marker-based, optical camera system may be a marker-less video-based tracking system. The aim of our study was to investigate the efficacy of the use of a marker-less tracking system in the calculation of 3D joint angles for possible use in clinical gait analysis. Ten participants walked and jogged on a treadmill and their kinematic data were captured with a marker and marker-less tracking system simultaneously. The hip, knee and ankle angles in the frontal, sagittal and transverse planes were computed. Root Mean Square differences (RMSdiff ) between corresponding angles for each participant's support phase were calculated and averaged to derive the mean within-subject RMSdiff . These within-subject means were averaged to obtain the mean between-subject RMSdiff for the relevant joint angles in the two gait conditions (walking and jogging). The RMSdiff between the two tracking systems was less than 1° for all rotations of the three joint angles of the hip and knee. However, there were slightly larger differences in the ankle joint angles. The results of this study suggest a potential application in gait analysis in clinical settings where observations of anatomical motions may provide meaningful feedback.
- Is Part Of:
- Computer methods in biomechanics and biomedical engineering. Volume 20:Issue 10(2017)
- Journal:
- Computer methods in biomechanics and biomedical engineering
- Issue:
- Volume 20:Issue 10(2017)
- Issue Display:
- Volume 20, Issue 10 (2017)
- Year:
- 2017
- Volume:
- 20
- Issue:
- 10
- Issue Sort Value:
- 2017-0020-0010-0000
- Page Start:
- 1089
- Page End:
- 1095
- Publication Date:
- 2017-07-27
- Subjects:
- Marker-less tracking -- motion-capture -- three-dimensional joint angles -- lower extremity segments
Biomechanics -- Data processing -- Periodicals
Biomedical engineering -- Periodicals
Biomechanics -- Periodicals
Biomedical Engineering -- methods -- Periodicals
Computing Methodologies -- Periodicals
612.7 - Journal URLs:
- http://www.tandfonline.com/toc/gcmb20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/10255842.2017.1334768 ↗
- Languages:
- English
- ISSNs:
- 1025-5842
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3394.100250
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 2329.xml