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A-0241 Kinematic analysis of the hand during opening a jar and yoghurt
Lisa Reissner, Gabriella Fischer, Pietro Giovanoli, Maurizio Calcagni, Division of Hand and Plastic Surgery, University Hospital Zurich, Switzerland
Friday, June 15, 2018 · 3:19 p.m. · 04m 15s
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thank you dear colleagues if i am i would like to present your
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results of kinetic analysis of the enduring hoping ajar and you eat
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due to the great relevance of proper extreme it is an activity of daily living
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researchers and clinicians are increasingly interested in the assessment of human hand movements
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so complex and functions battery presented by them at
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dynamic assessment than static measurements are subjective observations
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game of the study was to prove feasibility to measure complex mental tasks wheeze
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three didn't uh analyses quantify to repeat ability
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and the two analysts yeah no motion patterns of two functional
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tasks what you see here is our motion and i
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slept with eleven infrared cam a infrared cameras to measure their
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forty six reflective markers on the hand for our
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and elbow on twenty l. c. volunteers without previous hand and respect
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all the just the active range of motion of the rest
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joined infinity joins as as well as two functional
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activities opening a jar and you would recessed
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on two different days it to evaluate the test retest repeat ability
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here an example of opening the jar
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and here of opening you
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and these are the results it here you see one one tier he he did the trial
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five times a day on two different measurement days and what you see is that um
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he did a a dead the motion from the from the extension to flexion and
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then again to extension and um form form of uh and on the radiation
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what you can see is that he did the did the try yeah more or
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less the same movement and the two measurement days it's o. d. interest subject
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coefficient of multiple correlations between zero point seven four and
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zero point eight six which is very good
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these are the results of all the twenty one years and what you see here is
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that they opened the jar with a completely different strategy for example the yellow one
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he had the wrist inflection compared to light blue one what the wrist in extension so he
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intercept checked c. m. c. was very low slightly better for the radio on the deviation
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this is another warren cheerful open to you worked and what we see
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is that he opened do you work with an extension flexion movement
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and i'm from from radio to on the deviation so he also he did more or less the same
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movement on the two measurement days so the interest subject seems he was again very very good
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but not the inter subjects in c. also here they the volunteers opened a a that
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there you worked with different strategies the light blue one mister east
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inflection the and people who really want to restate extension
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and interest object of slightly better for the radio on the deviation
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to open the jar and thirty percent of the maximal
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flexion extension and fifty percent of the maximal radio only deviation
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was needed for you would so values were very similar
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in conclusion simultaneous motion analysis of the entire hand and fingers
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during functional cost is feasible reed relay and they're
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within the world into the functional costly to produce double
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the volunteers use different strategies to fulfil the task
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this is a first impression of under the motion patterns of two activities of daily living
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and therefore implies the first step to her to go to quantitative measure had functions
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in the second step measuring of other activities of daily needs planned
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and in a sort of on the measurement of patient
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