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Investigation of the effects of extravehicular activity (EVA) gloves on performanceThe objective was to assess the effects of extravehicular activity (EVA) gloves at different pressures on human hand capabilities. A factorial experiment was performed in which three types of EVA gloves were tested at five pressure differentials. The independent variables tested in this experiment were gender, glove type, pressure differential, and glove make. Six subjects participated in an experiment where a number of dexterity measures, namely time to tie a rope, and the time to assemble a nut and bolt were recorded. Tactility was measured through a two point discrimination test. The results indicate that with EVA gloves strength is reduced by nearly 50 percent, there is a considerable reduction in dexterity, performance decrements increase with increasing pressure differential, and some interesting gender glove interactions were observed, some of which may have been due to the extent (or lack of) fit of the glove to the hand. The implications for the designer are discussed.
Document ID
19940011244
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Bishu, Ram R.
(Nebraska Univ. Lincoln., United States)
Klute, Glenn
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1993
Subject Category
Man/System Technology And Life Support
Report/Patent Number
NAS 1.60:3401
S-732
NASA-TP-3401
Accession Number
94N15717
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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