Analysis of Musculoskeletal Loads During Prolonged Sitting in the Desk Work

Akinari Hirao, Hayato Uchida, Takeo Kato

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

Abstract

Due to the effects of the pandemic situation, remote work hours are increasing, and people are working at their desks for long periods. Therefore, there is concern about physical fatigue due to the accumulation of physical loads caused by continuous seating posture. Therefore, a system that monitors sitting posture and provides information to the seated person is expected to change behavior to reduce physical loads. In this study, we have developed a system that estimates musculoskeletal loads by inputting the sitting posture measured by unconstrained image acquisition. Calculation of musculoskeletal loads needs skeletal posture and reaction forces from the chair. In the system, reaction forces from the chair were estimated based on the balance of external forces from the measured skeletal posture. Using this system, we calculated the musculoskeletal loads during prolonged sitting from the measurement results of skeletal posture during continuous desk work and analyzed the relationship between the change in musculoskeletal loads and postural change. As a result, the possibility of the system was validated by analysis of the relationship between internal loads and posture.

Original languageEnglish
Title of host publicationAdvances in Digital Human Modeling - Proceedings of the 8th International Digital Human Modeling Symposium
EditorsSofia Scataglini, Wim Saeys, Steven Truijen, Gregor Harih
PublisherSpringer Science and Business Media Deutschland GmbH
Pages258-265
Number of pages8
ISBN (Print)9783031378478
DOIs
Publication statusPublished - 2023
EventProceedings of the 8th International Digital Human Modeling Symposium - Antwerp, Belgium
Duration: 2023 Sept 42023 Sept 6

Publication series

NameLecture Notes in Networks and Systems
Volume744 LNNS
ISSN (Print)2367-3370
ISSN (Electronic)2367-3389

Conference

ConferenceProceedings of the 8th International Digital Human Modeling Symposium
Country/TerritoryBelgium
CityAntwerp
Period23/9/423/9/6

Keywords

  • Biomechanical loads
  • Postural change
  • Sedentary work

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Computer Networks and Communications

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