Effectiveness of adaptive silverware on range of motion of the hand

Background. Hand function is essential to a person’s self-efficacy and greatly affects quality of life. Adapted utensils with handles of increased diameters have historically been used to assist individuals with arthritis or other hand disabilities for feeding, and other related activities of daily...

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Main Authors: Susan S. McDonald, David Levine, Jim Richards, Lauren Aguilar
Format: Article
Language:English
Published: PeerJ Inc. 2016-02-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/1667.pdf
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author Susan S. McDonald
David Levine
Jim Richards
Lauren Aguilar
author_facet Susan S. McDonald
David Levine
Jim Richards
Lauren Aguilar
author_sort Susan S. McDonald
collection DOAJ
description Background. Hand function is essential to a person’s self-efficacy and greatly affects quality of life. Adapted utensils with handles of increased diameters have historically been used to assist individuals with arthritis or other hand disabilities for feeding, and other related activities of daily living. To date, minimal research has examined the biomechanical effects of modified handles, or quantified the differences in ranges of motion (ROM) when using a standard versus a modified handle. The aim of this study was to quantify the ranges of motion (ROM) required for a healthy hand to use different adaptive spoons with electrogoniometry for the purpose of understanding the physiologic advantages that adapted spoons may provide patients with limited ROM. Methods. Hand measurements included the distal interphalangeal joint (DIP), proximal interphalangeal joint (PIP), and metacarpophalangeal joint (MCP) for each finger and the interphalangeal (IP) and MCP joint for the thumb. Participants were 34 females age 18–30 (mean age 20.38 ± 1.67) with no previous hand injuries or abnormalities. Participants grasped spoons with standard handles, and spoons with handle diameters of 3.18 cm (1.25 inch), and 4.45 cm (1.75 inch). ROM measurements were obtained with an electrogoniometer to record the angle at each joint for each of the spoon handle sizes. Results. A 3 × 3 × 4 repeated measures ANOVA (Spoon handle size by Joint by Finger) found main effects on ROM of Joint (F(2, 33) = 318.68, Partial η2 = .95, p < .001), Spoon handle size (F(2, 33) = 598.73, Partial η2 = .97, p < .001), and Finger (F(3, 32) = 163.83, Partial η2 = .94, p < .001). As the spoon handle diameter size increased, the range of motion utilized to grasp the spoon handle decreased in all joints and all fingers (p < 0.01). Discussion. This study confirms the hypothesis that less range of motion is required to grip utensils with larger diameter handles, which in turn may reduce challenges for patients with limited ROM of the hand.
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spelling doaj.art-1ba2e1e890db4ce59f5e348196607fd02023-12-03T09:46:38ZengPeerJ Inc.PeerJ2167-83592016-02-014e166710.7717/peerj.1667Effectiveness of adaptive silverware on range of motion of the handSusan S. McDonald0David Levine1Jim Richards2Lauren Aguilar3Department of Occupational Therapy, University of Tennessee—Chattanooga, Chattanooga, TN, United StatesDepartment of Physical Therapy, University of Tennessee—Chattanooga, Chattanooga, TN, United StatesAllied Health Research unit, University of Central Lancashire, Preston, United KingdomHonors College, University of Tennessee—Chattanooga, Chattanooga, TN, United StatesBackground. Hand function is essential to a person’s self-efficacy and greatly affects quality of life. Adapted utensils with handles of increased diameters have historically been used to assist individuals with arthritis or other hand disabilities for feeding, and other related activities of daily living. To date, minimal research has examined the biomechanical effects of modified handles, or quantified the differences in ranges of motion (ROM) when using a standard versus a modified handle. The aim of this study was to quantify the ranges of motion (ROM) required for a healthy hand to use different adaptive spoons with electrogoniometry for the purpose of understanding the physiologic advantages that adapted spoons may provide patients with limited ROM. Methods. Hand measurements included the distal interphalangeal joint (DIP), proximal interphalangeal joint (PIP), and metacarpophalangeal joint (MCP) for each finger and the interphalangeal (IP) and MCP joint for the thumb. Participants were 34 females age 18–30 (mean age 20.38 ± 1.67) with no previous hand injuries or abnormalities. Participants grasped spoons with standard handles, and spoons with handle diameters of 3.18 cm (1.25 inch), and 4.45 cm (1.75 inch). ROM measurements were obtained with an electrogoniometer to record the angle at each joint for each of the spoon handle sizes. Results. A 3 × 3 × 4 repeated measures ANOVA (Spoon handle size by Joint by Finger) found main effects on ROM of Joint (F(2, 33) = 318.68, Partial η2 = .95, p < .001), Spoon handle size (F(2, 33) = 598.73, Partial η2 = .97, p < .001), and Finger (F(3, 32) = 163.83, Partial η2 = .94, p < .001). As the spoon handle diameter size increased, the range of motion utilized to grasp the spoon handle decreased in all joints and all fingers (p < 0.01). Discussion. This study confirms the hypothesis that less range of motion is required to grip utensils with larger diameter handles, which in turn may reduce challenges for patients with limited ROM of the hand.https://peerj.com/articles/1667.pdfHandFingerThumbRange of motionDisabilityElectrogoniometer
spellingShingle Susan S. McDonald
David Levine
Jim Richards
Lauren Aguilar
Effectiveness of adaptive silverware on range of motion of the hand
PeerJ
Hand
Finger
Thumb
Range of motion
Disability
Electrogoniometer
title Effectiveness of adaptive silverware on range of motion of the hand
title_full Effectiveness of adaptive silverware on range of motion of the hand
title_fullStr Effectiveness of adaptive silverware on range of motion of the hand
title_full_unstemmed Effectiveness of adaptive silverware on range of motion of the hand
title_short Effectiveness of adaptive silverware on range of motion of the hand
title_sort effectiveness of adaptive silverware on range of motion of the hand
topic Hand
Finger
Thumb
Range of motion
Disability
Electrogoniometer
url https://peerj.com/articles/1667.pdf
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