Upload
harriet-king
View
216
Download
0
Tags:
Embed Size (px)
Citation preview
ISSUEISSUE
"We have noticed that children in America are tending more toward obesity [&
general less fitness] than in decades past; Part of it is due to sedentary lifestyles that kids are getting into. Rather than run in the woods, they've got Game Boy, Nintendo
and television." - - Discovery_Channel.com/Health Discovery_Channel.com/Health
Dec 2003Dec 2003
IssueIssue
Children’s Hospital has Children’s Hospital has realized that patients realized that patients spend majority of time spend majority of time playing video gamesplaying video games
In addition, most patients In addition, most patients (i.e. PKU patients) have (i.e. PKU patients) have physical handicapsphysical handicaps
Usually have minimal Usually have minimal exercise in a dayexercise in a day
Deterioration in general Deterioration in general healthhealth
TARGET PATIENTSTARGET PATIENTS
Specially designed for PKU patients in the Specially designed for PKU patients in the Vanderbilt Children’s HospitalVanderbilt Children’s Hospital
Inability of the body to utilize the essential amino Inability of the body to utilize the essential amino acid, phenylalanineacid, phenylalanine
Chronically high levels of phenylalanine and Chronically high levels of phenylalanine and some of its breakdown products can cause some of its breakdown products can cause significant brain problemssignificant brain problems
Signs of nervous system function problems, Signs of nervous system function problems, such as increased muscle tone, and more active such as increased muscle tone, and more active muscle tendon reflexes and decreased body muscle tendon reflexes and decreased body growthgrowth
TARGET PATIENTS (cont’d)TARGET PATIENTS (cont’d)
STATISTICSOne of every 10,000 to 20,000 Caucasian One of every 10,000 to 20,000 Caucasian
or Oriental births (the incidence in African or Oriental births (the incidence in African Americans is far less) Americans is far less)
Equally frequent in males and females Equally frequent in males and females ≈ ≈ 27,200 individuals in the USA only27,200 individuals in the USA only
TARGET PATIENTS (cont’d)TARGET PATIENTS (cont’d)PARAMETERS
Limited IQs ( < 80 ) “Special”Limited IQs ( < 80 ) “Special”Some Physical LimitationsSome Physical LimitationsLower Socio-Economic Background (limits Lower Socio-Economic Background (limits
financial resources)financial resources)Parents Usually Low in MotivationParents Usually Low in MotivationOther Limited Resources (e.g., education)Other Limited Resources (e.g., education)
Alternate SolutionsAlternate Solutions
DRUG ADMINSTRATION DRUG ADMINSTRATION (e.g., Amphetamines)(e.g., Amphetamines)
Adverse Psychological Effect/DamageAdverse Psychological Effect/DamagePossibly Addictive (Dependency) Possibly Addictive (Dependency)
PERSONAL TRAINER/THERAPISTPERSONAL TRAINER/THERAPISTExpensive (Cost Factor)Expensive (Cost Factor)Lack of Independent MotivationLack of Independent Motivation
SolutionSolution
Incorporate an amount of physical aerobic activity Incorporate an amount of physical aerobic activity into video playinto video play
+ Incorporate ‘leg-activated’ commands instead of + Incorporate ‘leg-activated’ commands instead of ‘finger-activated’‘finger-activated’
+ Independent Exercise+ Independent Exercise
+ Patient can remain sedentary+ Patient can remain sedentary
+ Aid in improving patient health and morale+ Aid in improving patient health and morale
________________________________________________________________________________
= = EXER-STATIONEXER-STATION
“ “Pedal power energy has been in use since Pedal power energy has been in use since the nineteenth century. Pedal power uses the the nineteenth century. Pedal power uses the most powerful muscles in the body: the most powerful muscles in the body: the quads, hamstrings, and calves. When quads, hamstrings, and calves. When pedaling in a circular motion at sixty to eighty pedaling in a circular motion at sixty to eighty revolutions per minute, with the use of toe revolutions per minute, with the use of toe clips, almost every muscle in the human legs clips, almost every muscle in the human legs can be used to make energy.”can be used to make energy.”
-Wilson 1977-Wilson 1977
•North and South of the Left analog stick will be replaced by pedal motion.•All other commands will remain intact and function through hand controller.
CONTROLLER
• Volare Mag Trainer w/Elastogel and Remote• Magnetic resistance unit with 5 different levels of adjustment
RESISTANCE
Output from generator will be smoothed and scaled to produce a DC current from -3V to +3V for maximum backward/forward (down/up) motion respectively.
DC GENERATOR
ADDITIONAL PARAMETERSADDITIONAL PARAMETERS TIRE DIAMETER= 24” (Unicycle TIRE DIAMETER= 24” (Unicycle
Wheel w/ Pedals Directly Attached) Wheel w/ Pedals Directly Attached)
Speed Range 40-120 RPM Speed Range 40-120 RPM Below:- Strains joints Below:- Strains joints Above:- Efficiency falls offAbove:- Efficiency falls off
EXTRA PARAMETERS (CONT’D)EXTRA PARAMETERS (CONT’D)
• Shaft 8mm diameter• Armature 52mm diameter •Rpm2 = (d1/d2) * Rpm1
GAMEPLAYGAMEPLAY
Design and Tested To Work Best w/ Motion Design and Tested To Work Best w/ Motion Games or Simple Maneuver (Racecar, 1Games or Simple Maneuver (Racecar, 1stst Person-Action, etc)Person-Action, etc)
AIMSAIMS
1 hour of Exer-Station =1 hour of Exer-Station =
20 minute Brisk Walk 20 minute Brisk Walk
4 minute Sprint 4 minute Sprint
Approximately 86 Calories!Approximately 86 Calories!
Results?Results?
Kids play ≈ 6 hours/dayKids play ≈ 6 hours/day
Use ≈ 100 Calories/hourUse ≈ 100 Calories/hour
Expend ≈ 600 Calories/day!!!Expend ≈ 600 Calories/day!!!
MARKET POTENTIALMARKET POTENTIAL
Ages 8+Ages 8+ Hospital PatientsHospital Patients Obese IndividualsObese Individuals Individuals concerned about fitnessIndividuals concerned about fitness General Video Game AudienceGeneral Video Game Audience
TIME CHARTTIME CHART
December January February March April
Preliminary research
Extensive research
Feedback
Design
Prototype
Testing
BUDGETBUDGET $400 Initial Budget $400 Initial Budget (from Dr. Summar)(from Dr. Summar)
Playstation II Console ($200)Playstation II Console ($200) Multiple Controllers ($75)Multiple Controllers ($75) Three Games ($150)Three Games ($150)
Additional $350 Requested Additional $350 Requested (from Dr. King’s Grant)(from Dr. King’s Grant) Leg Activated ElementsLeg Activated Elements
Unicycle ($125)Unicycle ($125) Mag. Trainer ($150)Mag. Trainer ($150) DC Generator ($25)DC Generator ($25) WiresWires LEDsLEDs ChipsChips Circuit BoardCircuit Board
Decorative Design/ AestheticsDecorative Design/ Aesthetics MiscellaneousMiscellaneous
ADVISORSADVISORS
Paul H. King, PhD., P.E.:Paul H. King, PhD., P.E.: -Associate Professor of Biomedical -Associate Professor of Biomedical Engineering at Vanderbilt.Engineering at Vanderbilt.-Associate Professor of Mechanical -Associate Professor of Mechanical Engineering at Vanderbilt.Engineering at Vanderbilt.-Associate Professor of Anesthesiology at -Associate Professor of Anesthesiology at Vanderbilt.Vanderbilt.-Instructor of the senior Biomedical -Instructor of the senior Biomedical Engineering design course at Vanderbilt.Engineering design course at Vanderbilt.
Marshall Summar, M.D.:Marshall Summar, M.D.:-Associate Professor of Pediatrics at -Associate Professor of Pediatrics at Vanderbilt.Vanderbilt.-Associate Professor of Molecular -Associate Professor of Molecular Physiology & Biophysics at Vanderbilt.Physiology & Biophysics at Vanderbilt.
VANDERBILT UNIVERSITY-lab space-machine shop-research facilities-software-help purchase necessary tools/equipment
SECOND BASE-back-up location when primary lab not available
RESOURCES