Relation between perceived effort and the electromyographic signal in localized low-effort activities

Gadi Korol, Amir Karniel, Itzik Melzer, Adi Ronen, Yael Edan, Helman Stern, Raziel Riemer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Hand-based human-machine interfaces are complex tasks that involve repetitive or sustained movements and postures of the hands that can lead to overuse syndromes of the musculoskeletal system. Consequently, it is important to minimize the physical effort that occurs at these interfaces. The evaluation of physical effort can be performed either by subjective evaluation of the relative perceived effort (e.g., Borg scale) or by objective physiological measurements (e.g., electromyography - EMG). However, the relation between these two measures has not been sufficiently studied for localized low-effort activities. This study investigated the relation between EMG and Borg ratings, as well as the issue of gender differences during low-effort activity of forearm muscles. Nine females and nine males performed eight different hand gestures (localized low-effort activity), during which EMG signals were recorded from six forearm muscles and Borg ratings were obtained. On average, the female subjects rated the gestures as less effortful than the male subjects, and also demonstrated a higher positive correlation between the EMG and Borg ratings. Furthermore, the linear model that was fitted for predicting the Borg ratings based on gender and the combined activity of muscles provided an R-squared value of approximately 0.3.

Original languageEnglish
Title of host publication2014 International Annual Meeting of the Human Factors and Ergonomics Society, HFES 2014
PublisherHuman Factors an Ergonomics Society Inc.
Pages1077-1081
Number of pages5
Volume2014- January
ISBN (Electronic)9780945289456
DOIs
StatePublished - 1 Jan 2014
Event58th International Annual Meeting of the Human Factors and Ergonomics Society, HFES 2014 - Chicago, United States
Duration: 27 Oct 201431 Oct 2014

Publication series

NameProceedings of the Human Factors and Ergonomics Society
ISSN (Print)1071-1813

Conference

Conference58th International Annual Meeting of the Human Factors and Ergonomics Society, HFES 2014
Country/TerritoryUnited States
CityChicago
Period27/10/1431/10/14

Fingerprint

Dive into the research topics of 'Relation between perceived effort and the electromyographic signal in localized low-effort activities'. Together they form a unique fingerprint.

Cite this