Hand actuation strength: A preliminary evaluation of physical demand in a nontraditional lawn mowing control system

Bethany R. Lowndes, Elizabeth A. Thrailkill, M. Susan Hallbeck

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

1 Scopus citations

Abstract

Many jobs and tasks involve hand control requiring large forces, awkward positions and/or high repetition rates which may lead to upper limb injury or illness. The operation of commercial lawn mowing machines involves a combination of these factors for actuation of hand controls and therefore may pose a safety concern for the operators. A nontraditional control system currently implemented on a commercially-available lawn mower may reduce some of the precursors for upper limb illness or injury due to hand and body positioning. This preliminary study compared maximum grip strength in nine different orientations (combinations of 3 different grip spans and 3 different positions). The results showed that there was a difference between the three different grip spans (p < 0.0001) and a difference between positions (p < 0.0001). The position of the nontraditional control system and the smallest grip span (6.3cm) facilitated the highest grip forces. Further investigation is required to better understand the impact on users of repetitive actuation in these orientations specifically while mowing.

Original languageEnglish (US)
Title of host publicationProceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012
Pages1932-1936
Number of pages5
DOIs
StatePublished - Dec 1 2012
EventProceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012 - Boston, MA, United States
Duration: Oct 22 2012Oct 26 2012

Publication series

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

Other

OtherProceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012
CountryUnited States
CityBoston, MA
Period10/22/1210/26/12

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ASJC Scopus subject areas

  • Human Factors and Ergonomics

Cite this

Lowndes, B. R., Thrailkill, E. A., & Hallbeck, M. S. (2012). Hand actuation strength: A preliminary evaluation of physical demand in a nontraditional lawn mowing control system. In Proceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012 (pp. 1932-1936). (Proceedings of the Human Factors and Ergonomics Society). https://doi.org/10.1177/1071181312561283