Transcript Oral Presentation 4 - Research

EXER-STATION
Bichar Myrtil
Tarafa M. Al-Awaj
ISSUE
"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
Dec 2003
Issue

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Children’s Hospital has
realized that patients
spend majority of time
playing video games
In addition, most patients
(i.e. PKU patients) have
physical handicaps
Usually have minimal
exercise in a day
Deterioration in general
health
TARGET PATIENTS




Specially designed for PKU patients in the
Vanderbilt Children’s Hospital
Inability of the body to utilize the essential amino
acid, phenylalanine
Chronically high levels of phenylalanine and
some of its breakdown products can cause
significant brain problems
Signs of nervous system function problems,
such as increased muscle tone, and more active
muscle tendon reflexes and decreased body
growth
TARGET PATIENTS (cont’d)
STATISTICS
 One of every 10,000 to 20,000 Caucasian
or Oriental births (the incidence in African
Americans is far less)
 Equally frequent in males and females
 ≈ 27,200 individuals in the USA only
TARGET PATIENTS (cont’d)
PARAMETERS
Limited IQs ( < 80 ) “Special”
 Some Physical Limitations
 Lower Socio-Economic Background (limits
financial resources)
 Parents Usually Low in Motivation
 Other Limited Resources (e.g., education)

Alternate Solutions

DRUG ADMINSTRATION
(e.g., Amphetamines)
Adverse Psychological Effect/Damage
 Possibly Addictive (Dependency)


PERSONAL TRAINER/THERAPIST
Expensive (Cost Factor)
 Lack of Independent Motivation

Solution
Incorporate an amount of physical aerobic activity
into video play
+ Incorporate ‘leg-activated’ commands instead of
‘finger-activated’
+ Independent Exercise
+ Patient can remain sedentary
+ Aid in improving patient health and morale
________________________________________
=
EXER-STATION
“Pedal power energy has been in use since
the nineteenth century. Pedal power uses the
most powerful muscles in the body: the
quads, hamstrings, and calves. When
pedaling in a circular motion at sixty to eighty
revolutions per minute, with the use of toe
clips, almost every muscle in the human legs
can be used to make energy.”
-Wilson 1977
MODEL of EXER-STATION
CONTROLLER
•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.
RESISTANCE
• Volare Mag Trainer w/Elastogel and Remote
• Magnetic resistance unit with 5 different levels of adjustment
DC GENERATOR
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.
ADDITIONAL PARAMETERS

TIRE DIAMETER= 24” (Unicycle
Wheel w/ Pedals Directly Attached)

Speed Range 40-120 RPM

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Below:- Strains joints
Above:- Efficiency falls off
EXTRA PARAMETERS (CONT’D)
• Shaft 8mm diameter
• Armature 52mm diameter
•Rpm2 = (d1/d2) * Rpm1
GAMEPLAY

Design and Tested To Work Best w/ Motion
Games or Simple Maneuver (Racecar, 1st
Person-Action, etc)
AIMS
1 hour of Exer-Station =
20 minute Brisk Walk
4 minute Sprint
Approximately 86 Calories!
Results?
 Kids
play ≈ 6 hours/day
 Use
≈ 100 Calories/hour
 Expend
≈ 600 Calories/day!!!
MARKET POTENTIAL
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Ages 8+
Hospital Patients
Obese Individuals
Individuals concerned about fitness
General Video Game Audience
TIME CHART
December
Preliminary
research
Extensive
research
Feedback
Design
Prototype
Testing
January
February
March
April
BUDGET

$400 Initial Budget (from Dr. Summar)

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Playstation II Console ($200)
Multiple Controllers ($75)
Three Games ($150)
Additional $350 Requested (from Dr. King’s Grant)

Leg Activated Elements
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Unicycle ($125)
Mag. Trainer ($150)
DC Generator ($25)
Wires
LEDs
Chips
Circuit Board
Decorative Design/ Aesthetics
Miscellaneous
ADVISORS

Paul H. King, PhD., P.E.:
-Associate Professor of Biomedical
Engineering at Vanderbilt.
-Associate Professor of Mechanical
Engineering at Vanderbilt.
-Associate Professor of Anesthesiology at
Vanderbilt.
-Instructor of the senior Biomedical
Engineering design course at Vanderbilt.
RESOURCES
VANDERBILT
UNIVERSITY
-lab space
-machine shop
-research facilities
-software
-help purchase necessary
tools/equipment
SECOND BASE

Marshall Summar, M.D.:
-Associate Professor of Pediatrics at
Vanderbilt.
-Associate Professor of Molecular
Physiology & Biophysics at Vanderbilt.
-back-up location when
primary lab not available
w/ Exer-station