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ReferencesNavigation arrowAuthorsNavigation arrowS. A. Lavender
Jun 18

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S. A. Lavender

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Publications by S. A. Lavender (bibliography)

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1989
 
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Marras, W. S., Sudhakar, L. R. and Lavender, S. A. (1989): Three Dimensional Measures of Trunk Motion Components during Manual Materials Handling in Industry. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 662-666.

“The objective of this study was to monitor and document the three dimensional spine motion components experienced during the performance of industrial work that is associated with various risks of low back disorder (LBD). An industrial study was performed that examined on-the-job trunk motions of 64 workers from 13 different industries. Trunk range of motion, velocity and acceleration were documented. Worker anthropometry, health history, external load moments, job satisfaction and risk (identified from OSHA 200 logs) were also recorded for the various jobs. The results identified and quantified those trunk motion characteristics as well as other workplace variables that were associated with high risk jobs. A regression model of job related LBD risk was also created based upon this information. The relationship between these motions and biomechanical loading of the spine as well as means to reduce the risk of LBD in the work place (based upon this study) are discussed.”

© All rights reserved Marras et al. and/or Human Factors Society

1988
 
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Sudhakar, L. R., Schoenmarklin, R. W., Lavender, S. A. and Marras, W. S. (1988): The Effects of Gloves on Grip Strength and Muscle Activity. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 647-650.

“The focus of this research was to investigate how grip strength and forearm muscle force were affected by two types of gloves, rubber and leather. Grip strength was significantly less in the two gloved conditions than in a barehanded condition. However, EMG analysis of muscle activity revealed no significant difference in muscle activity across the gloved and barehanded conditions, indicating that subjects generated maximal exertions in all conditions. Therefore, a certain amount of muscle force is lost in the hand-glove interface while producing maximal grip forces in the gloved conditions. Internal muscle force measurement could thus be used to aid in glove selection for submaximal tasks in industry.”

© All rights reserved Sudhakar et al. and/or Human Factors Society

 
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26 Jun 2007: Modified
25 Jun 2007: Added

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Jun 18

“ Computer programs emerge as the outcome of complex human processes of cognition, communication and negotiation, which serve to establish the meaningful embedding of the computer system in its intended use context. ”

-- Floyd, 1992, p. 24

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Latest books

The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad

 
Start reading

The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

Help us help you!

 
 
 
 
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