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 language | English (US) |
|---|---|
| Pages (from-to) | 158-164 |
| Number of pages | 7 |
| Journal | Applied Ergonomics |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1993 |
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All Science Journal Classification (ASJC) codes
- Human Factors and Ergonomics
- Physical Therapy, Sports Therapy and Rehabilitation
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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 journal › Article
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 -