A validation test of using shoulder joint moment in evaluation of load in wheelchair propulsion

D. Kobayashi, T. Watanabe, N. Tyler, T. Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Manual wheelchair is an effective device for assisting independent life of motor disabled subjects. However, many users of manual wheelchair have been suffered from shoulder pain because propelling the wheelchair needs repetitive movement of upper extremities. The purpose of this study was to examine a validity of using shoulder joint moment in evaluation of load on the users in wheelchair propulsion. Since shoulder joint moment can evaluate mechanical load on the shoulder, the indexes are expected to provide information to help wheelchair propulsion in decreasing of shoulder pain. Two evaluation indexes derived from shoulder joint moment were tested in this paper: Ft/Ms and Fr/Ms, which showed contribution of shoulder joint moment (MS) to wheelchair propulsion (tangential force on handrim FT) and to the resultant force on handrim (FR). These indexes were compared to the index FT/FR which was based on previous studies. Measurements of movements during wheelchair propulsion were performed with 3 healthy subjects on stationary wheelchair ergometer under the different conditions of propulsion speed and resistance of ergometer. Correlation coefficient between the proposed indexes and FT/FR were low (-0.51 to 0.10), which suggested that the proposed indexes had different information from the index FT/FR. Change of the index values between low and high propulsion load conditions were different between subjects. These results suggest that using indexes derived from shoulder joint moment would be effective in evaluation of load in wheelchair propulsion.

Original languageEnglish
Title of host publication2017 IEEE Life Sciences Conference, LSC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages242-245
Number of pages4
ISBN (Electronic)9781538610305
DOIs
Publication statusPublished - 2018 Jan 23
Event1st International IEEE Life-Science Conference, LSC 2017 - Sydney, Australia
Duration: 2017 Dec 132017 Dec 15

Publication series

Name2017 IEEE Life Sciences Conference, LSC 2017
Volume2018-January

Other

Other1st International IEEE Life-Science Conference, LSC 2017
CountryAustralia
CitySydney
Period17/12/1317/12/15

ASJC Scopus subject areas

  • Health Informatics
  • Artificial Intelligence
  • Human-Computer Interaction
  • Biomedical Engineering
  • Medicine (miscellaneous)

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  • Cite this

    Kobayashi, D., Watanabe, T., Tyler, N., & Suzuki, T. (2018). A validation test of using shoulder joint moment in evaluation of load in wheelchair propulsion. In 2017 IEEE Life Sciences Conference, LSC 2017 (pp. 242-245). (2017 IEEE Life Sciences Conference, LSC 2017; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/LSC.2017.8268188