Astra
Wearable Exercise System for Astronauts
What is this Project about ?
As part of a NASA academic partnership, our project developed a Wearable Exercise System for astronauts on the Artemis 2 mission to the moon. Our suit allows zero-gravity exercise anytime, eliminating isolation systems and reducing spacecraft stress. This innovative design received top evaluations from NASA mentors and researchers for its potential impact.
Background
Exercise is essential to counteract zero-g health issues and post-return side effects.
Causes
Vibration and space issues made exercise difficult in zero-g.
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Results
Create wearable exercise system that saves space in ISS.
Why Exercise in Space?
Why is it mandatory for astronaut to exercise in microgravity?
In microgravity, muscles weaken and bones lose density rapidly. Without regular exercise, astronauts can lose up to 20% of muscle mass in just 5–11 days.
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11 Days Later
This is why astronaut requires
to exercise
in International space station
2 hours a day !
Current Situation
Exercise equipment allows only one astronaut to use it at a time, causing scheduling difficulties and limiting exercise variety. Additionally, machines require vibration to prevent damage and interference.
Exercise Limitation
Scheduling Issues
Limited Exercise Types
Vibration Issues
Problem Statement
Conducted research on the existing exercise systems on the International Space Station.
Cycle Ergometer
Schedule conflicts
Space consuming
Vibration problems
Tredmill Ergometer
Schedule conflicts
Space consuming
Vibration problems
ARED
Schedule conflicts
Space consuming
Complex Structure
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Results
Limited user access, consuming huge spaces in space station, and vibration problems within the ISS.
Design Objective
Wearable exercise device that any astronaut can easily use, even in Zero-G
Efficiency, Set Up
Quick Setup,
Adjustable Resistance
Mobility, Comfort
Full Mobility,
Extended Comfort
Space, Size Efficiency
Space Efficient,
Size Flexibility
Design Concept
Focuses on an adjustable, connectable, and customizable exercise suit for Zero-G health and astronaut comfort.
Adjustable
Connectable
Customizable
Adjustable Slides
The suit adjusts to fit all astronaut body types.
Hardware Materials
Cargo Canvas for durability
Kydex for secure each pulley
EVA foam for cushioning
Spacer mesh for ventilation
Adjustable Stopper
It is used to accommodate height adjustments.
Constant Force Spring Casing
Different weight capacities for each person.
Pulley for Redirectable Wire
It is used to assist the lower body movements of astronauts.
General Pulley
It helps keep the wire in the correct position.
Design Sketches
How Does
Astra
Works ?
The answer is in
the back case !
The two springs are contained in two distinct boxes and are mounted on the left and right side. The first module is able to handle between 110 and 130 pounds. Additional modules are made to handle between 130 to 150, and 150 to 170 pounds. Special modules can also be produced to meet the needs and wants of the astronauts.
During lunges, squats, and calf raises, the springs stretch and provide resistance. Due to zero gravity, we had to generate tension artificially.
