Transcript The Viscocise - Massachusetts Institute of Technology

Team Yellow: Section B Sketch Model
Presentation
Aaron Doody
Harmeet Gill
Moneer Helu
Adam Leeb
David Lopez
Zack Reynolds
Taylor Roan
The Viscocise
Making Exercise Accessible
to EVERYONE !
Section Yellow-B
Overview
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The Need
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The Device
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Lessons Learned
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Kinematics
Calculations
Next Iteration
Market Analysis
The Need
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30% of U.S. deaths in 2000 due to lack of
physical activity, smoking, and poor diet.
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43.4% of elderly deaths caused by heart
disease, stroke, and diabetes.

32.9% of elderly without physical exercise for
the past month.
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19.5% of elderly are obese.
The Solution
The Viscocise
The benefits of water aerobics on land
Advantages
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No stored energy
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Does not constrain motion
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Same degrees of freedom as the body
Matches the force of the user
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Safer than weights or springs.
Viscous damping acts as a passive feedback system
Dual-direction resistance
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Exercises complementary muscle groups.
Calculations
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Maximum Torque: ~40 Nm
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Average Joint Rotational Speed: ~1 rad/s
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Linear Damper (10cm moment arm):
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Maximum Force: 400 N
Damping Coefficient: 40 N•s/m
Rotary Damper (1:1 gear ratio):
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Maximum Torque: 40 N•m
Damping Coefficient: 40 N•m•s/rad
Preliminary Testing
Sketch Model
The Next Iteration
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Damper Selection
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Proper Ergonomics
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Rotary damping for elbow joints
Oil-based dampers
Mirror human joints
Dual support handle to eliminate torque on wrist
Contact: Kristina Martin
Director of Aquatic & Fitness Programs
Zesiger Sports and Fitness Center
Market

35+ million elderly in U.S.
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Increased physical activity could save $77+
billion in medical expenses.
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95% of elderly health care spending on
chronic diseases (i.e. diabetes, heart disease
and stroke, cancer and arthritis).
Questions?

(Insert Question Here…)
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Thank you for your time and consideration.
Cost (~$50)
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Joints: $2
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Structural Members: $10
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Dampers: $10
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Seat: $5
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Manufacturing Cost: ~$20
Benefits of Exercise
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Contributes to overall fitness including bone and
muscle strength, flexibility, and weight control.
Helps prevent
 Coronary Heart Disease
 Obesity
 Arthritis
 High Blood Pressure
 Diabetes
 Osteoporosis
 Stroke
 Depression
Decreases injury and surgery recovery time.