Let’s Get Physical!Pediatric Gait ProjectProblemUser Acceptance:Design for ChildrenDesign ConceptsUsersExisting SolutionsThe DJThe DJ: Electrical Design IdeasThe DJ: Electrical Design IdeasLooking further…From Debbie Kenney …Future WorkProject TimelineLet’s Get Physical!Pediatric Gait ProjectNydia Cardenas, Whitney King, Roseanne Warren1ProblemChildren who require physical therapy or gait training to improve their ability to walk do not spend sufficient time with a physical therapist to master this skill. GoalDesign a device that 1) appeals to children2) is portable and easy to use at home3) encourages walking with proper gait2User Acceptance:Design for Childreni) Rapid pace of developmentii) Children not purchasersiii) Observations most valuableiv) Physical therapy exercises: integrate vs. alienate3Lueder, Rani & Valerie Rice.“Ergonomics for Children”. Taylor & Francis. 2008Design Conceptsi) Standing/Balancing AidPlays music if user exerts an equal amount of force on both legsii) Stable Bike Peddler with Hand Controlsiii) The DJ: Walking Motivator4UsersChildren with walking disabilities undergoing physical therapy treatmentSpina BifidaStrokeShort or long-term injuryCerebral Palsy (CP)Muscular Dystrophy5Existing Solutions6i) Gait Trainer ii) Steady-stepperiii) Walking Motivatoriv) “Alonzo & Polo” WalkerThe DJ• Small size• Has a handle for carrying• Two push handles for better weight support• Might pursue telescoping poles as push handles to adapt to various users and make it more practical to carry18 in24 in.12 in12 in7Can also attach to a walker8The DJ: Electrical Design Ideas•The Dynamo• The dynamo uses rotating coils of wire and magnetic fields to convert mechanical rotation into a pulsing direct electric current.9The DJ: Electrical Design Ideas•The Microprocessor10• Input and output devices may be discrete switches, relays, or solenoids. Used to control electric motors, relays or voltages, and may read switches, variable resistors or other electronic devicesThe DJ: Electrical Design IdeasA device for measuring the total specific external force on the sensor•Accelerometer•Relays and GeneratorsAn electrical switch that opens and closes. A closed switch would complete the circuit and allow music to play.11Looking further…CONS• Does not address issue of poor gait• Could get annoying for parents (key supporters)• When would it become old?12PROS• “Popular” music and not mechanical music• Universal: would entice children without a disability• Portable• Can push by hand or by attaching to walker (various levels of users)• “Cool” factorFrom Debbie Kenney …• Training for devices is key or success level low– Little training required for The DJ• Repetition is key– Already primary idea behind design– Portable entertainment and exercise13Future Worki) Users! ii) Improve sound design and music playing capabilitiesiii) Incorporate Gait Analysis144/4/08 4/11/08 4/18/08 4/25/08 5/2/08 5/9/08Design Gait IntegrationSolidworks Drawing of DeviceBuy MaterialsBody ConstructionHandle ConstructionElectrical Fabrication5/12/08 5/16/08 5/23/08 5/30/08 6/5/08ME 113 Midway ReportElectrical IntegrationPreliminary User Testing & RefinementSecondary User Testing & RefinementEXPE project ExpoME113 ReportProject
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