Wearing the wrong size latex surgical gloves impairs manual dexterity.
ABSTRACT Universal precautions mandate that health care workers wear gloves when dealing with patients, often in situations requiring a high level of technical skill. Although it seems obvious that wearing the wrong size gloves could impair or prolong tasks involving manual dexterity, the issue has not been formally studied. We tested the hypothesis that wearing the wrong size gloves impairs manual dexterity. We administered a grooved pegboard test to 20 healthy, paid, volunteer health care workers. The subjects performed the test with bare hands and while wearing their preferred size of latex surgical gloves, gloves that were a full size smaller, and gloves that were a full size larger. Each subject did three runs with each size glove and three runs with bare hands. The time necessary to insert pegs was measured with a stopwatch. Peg insertion time was not affected by wearing preferred size gloves (vs. bare-handed) but was increased 7-10% by gloves that were either too small or too large (both effects: P < 0.05 vs. preferred size; both P < 0.001 vs. bare-handed). The subjects reported that the too-small gloves limited hand motion or hurt their hands, whereas the too-large gloves were clumsy but comfortable. Health care workers should wear gloves that fit properly when doing tasks that require manual dexterity. If the preferred size is unavailable, wearing gloves that are too large seems the best alternative.
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ABSTRACT: Evaluation of psychomotor skills is undertaken in a number of broad contexts. This includes testing of health professional populations as a measure of innate ability, to evaluate skill acquisition, or to compare professions. However, the use of psychomotor tests is frequently confounded by a lack of understanding of a particular tool's psychometric properties, strengths, and weaknesses. To identify and appraise the most commonly used tests on health professional populations, 86 articles were reviewed and the top nine tests identified. Few tests have had sufficient validity or reliability testing on health professionals. Based on the evidence available, use of the Grooved Pegboard Test, the Purdue Pegboard Test, or the Finger Tapping Test is recommended for the evaluation of dexterity in a health professional population; however, this choice may be dependent on the task(s) to which findings are generalised. More rigorous evaluation of validity and other psychometric properties is required.Perceptual and Motor Skills 06/2014; 118(3):765-804. · 0.49 Impact Factor
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ABSTRACT: The objective of this study was to conduct a preliminary evaluation of the ergonomic properties of gloves designed for protection against mineral oils. Two standardized tests were employed for assessing comfort of use: the finger dexterity test and the grip and pull test. The study was carried out under conditions simulating the real-life usage of gloves; mineral oil was spread on the gloves’ surface, which is a novelty relative to the methodology described in the relevant standards. Four types of gloves commonly used for protection against mineral oils were studied. The first test involved 10 human subjects, and the second 4 subjects. Preliminary evaluation of the ergonomic properties of gloves was conducted by means of the finger dexterity test (evaluation of fine finger movements) and a cylinder grip and pull test (evaluation of the gross movements of the arms and hands). These tests showed that mineral oil present on the surface of the gloves (in the dexterity test and the grip and pull test) negatively affected the ergonomic properties of the gloves. It was established that the glove material influenced the subjects’ evaluation of the effort put into gripping and pulling a cylinder while wearing oiled gloves. The study also showed that the cylinder grip and pull test, used to examine the gross movements of the arms and hands, is more sensitive than the finger dexterity test and allows for more accurate verification of a glove material in the case of exposure to oils. It should be noted that gloves made entirely of chloroprene rubber exhibited the smallest decrease in ergonomic properties in the most difficult test involving oiled gloves and a cylinder. This material provides greater comfort of use than a liner coated with acrylonitrile-butadiene rubber or nitrile rubber.Journal of Testing and Evaluation 01/2013; 41(6):875-882. · 0.38 Impact Factor
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ABSTRACT: ABSTRACT Glove movement can affect chemical permeation of organic compounds through polymer glove products. However, conflicting reports make it difficult to compare the effects of movement on chemical permeation through commonly available glove types. This study was aimed to evaluate the effect of movement on chemical permeation of an organic solvent through disposable latex, nitrile, and vinyl gloves. Simulated whole-glove permeation testing was conducted using ethyl alcohol and a previously designed permeation test system. With exposure to movement, a significant decrease (p ≤ 0.001) in breakthrough time was observed for the latex (-23%) and nitrile gloves (-31%). With exposure to movement, only the nitrile glove exhibited a significant increase (p ≤ 0.001) in steady-state permeation rate (+47%) and cumulative permeation at 30 min (+111%). Even though the nitrile glove provided optimum chemical resistance against ethyl alcohol, it was most affected by movement. With exposure to movement, the latex glove was an equivalent option for overall worker protection, because it was less affected by movement and the permeation rate was lower than that of the nitrile glove. In contrast, the vinyl glove was the least affected by movement, but did not provide adequate chemical resistance to ethyl alcohol in comparison with the nitrile and latex gloves. In conclusion, glove selection should take movement and polymer type into account. Some glove polymer types are less affected by movement, most notably the latex glove in this test. With nitrile gloves, at least a factor of three should be used when attempting to assign a protection factor when repetitive hand motions are anticipated. Ultimately, the latex gloves outperformed nitrile and vinyl in these tests, which evaluated the effect of movement on chemical permeation. Future research should aim to resolve some of the observed discrepancies in test results with latex and vinyl gloves.Journal of Occupational and Environmental Hygiene 04/2014; · 1.28 Impact Factor