Reaction torques and operator stress while using powered nutrunners

Andris Freivalds, Jörgen Eklund

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Reaction torque measures of six different nutrunners were correlated with EMG measures and subjective ratings of perceived exertion for different work surface orientations, joint stiffnesses, rpm levels, air pressure levels and handle configurations. Using an underpowered tool or using a softer joint resulted in larger impulses and worse ratings. A pulse-type shut-off mechanism produced the lowest reaction torque and the best rating. Overall, ratings correlated directly with the impulse level. The subjects were good judges of stress levels, and subjective ratings were valid measures of operators stress.

Original languageEnglish (US)
Pages (from-to)158-164
Number of pages7
JournalApplied Ergonomics
Volume24
Issue number3
DOIs
StatePublished - Jan 1 1993

Fingerprint

Torque
Joints
rating
Air Pressure
Stiffness
work orientation
Air
air

All Science Journal Classification (ASJC) codes

  • Human Factors and Ergonomics
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

@article{1d766a7cc2804ecabff7d07dbd679599,
title = "Reaction torques and operator stress while using powered nutrunners",
abstract = "Reaction torque measures of six different nutrunners were correlated with EMG measures and subjective ratings of perceived exertion for different work surface orientations, joint stiffnesses, rpm levels, air pressure levels and handle configurations. Using an underpowered tool or using a softer joint resulted in larger impulses and worse ratings. A pulse-type shut-off mechanism produced the lowest reaction torque and the best rating. Overall, ratings correlated directly with the impulse level. The subjects were good judges of stress levels, and subjective ratings were valid measures of operators stress.",
author = "Andris Freivalds and J{\"o}rgen Eklund",
year = "1993",
month = "1",
day = "1",
doi = "10.1016/0003-6870(93)90003-R",
language = "English (US)",
volume = "24",
pages = "158--164",
journal = "Applied Ergonomics",
issn = "0003-6870",
publisher = "Elsevier Limited",
number = "3",

}

Reaction torques and operator stress while using powered nutrunners. / Freivalds, Andris; Eklund, Jörgen.

In: Applied Ergonomics, Vol. 24, No. 3, 01.01.1993, p. 158-164.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Reaction torques and operator stress while using powered nutrunners

AU - Freivalds, Andris

AU - Eklund, Jörgen

PY - 1993/1/1

Y1 - 1993/1/1

N2 - Reaction torque measures of six different nutrunners were correlated with EMG measures and subjective ratings of perceived exertion for different work surface orientations, joint stiffnesses, rpm levels, air pressure levels and handle configurations. Using an underpowered tool or using a softer joint resulted in larger impulses and worse ratings. A pulse-type shut-off mechanism produced the lowest reaction torque and the best rating. Overall, ratings correlated directly with the impulse level. The subjects were good judges of stress levels, and subjective ratings were valid measures of operators stress.

AB - Reaction torque measures of six different nutrunners were correlated with EMG measures and subjective ratings of perceived exertion for different work surface orientations, joint stiffnesses, rpm levels, air pressure levels and handle configurations. Using an underpowered tool or using a softer joint resulted in larger impulses and worse ratings. A pulse-type shut-off mechanism produced the lowest reaction torque and the best rating. Overall, ratings correlated directly with the impulse level. The subjects were good judges of stress levels, and subjective ratings were valid measures of operators stress.

UR - http://www.scopus.com/inward/record.url?scp=0027607309&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027607309&partnerID=8YFLogxK

U2 - 10.1016/0003-6870(93)90003-R

DO - 10.1016/0003-6870(93)90003-R

M3 - Article

VL - 24

SP - 158

EP - 164

JO - Applied Ergonomics

JF - Applied Ergonomics

SN - 0003-6870

IS - 3

ER -