Change search
ReferencesLink to record
Permanent link

Direct link
Biomechanical Simulations of a Flywheel Exercise Device in Microgravity
KTH, School of Technology and Health (STH).
KTH, School of Technology and Health (STH).
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Biomekaniska simuleringar av resistansgivande svänghjulsbaserad träningsutrustning i tyngdlöshet (Swedish)
Abstract [en]

Bone loss and muscle atrophy are two main physiological conditions affecting astronauts while being in space. In order to counteract the effects, at least two hours of aerobic and resistant countermeasure exercise is scheduled into their working day, seven days a week. Yoyo Technology AB has developed a resistance exercise device based on the flywheel principle, providing a load independent of gravity. However, there is no biomechanical research done on the efficiency of the device in microgravity, from a human movement point of view using simulation software.

The aim of this thesis was to evaluate the effects of performing a leg press on the flywheel exercise device in a microgravity environment. Simulations of performing a flywheel leg press in earth gravity, microgravity and performing a conventional squat were done. The evaluated parameters were reaction forces, joint angles, joint moments, joint powers and muscle recruitment in the lower extremities. The simulations were done using a biomechanical simulation software based on a motion capture data collection.

From the results two conclusions were proposed. Performing a flywheel leg press in microgravity environment or on earth provides at least as much peak moment as a body weighted squat performed on earth. Furthermore, performing a flywheel leg press in microgravity will induce a higher activity level among hip extensors and knee flexors compared to performing a flywheel leg press on earth. 

Place, publisher, year, edition, pages
2015. , 84 p.
TRITA-STH, 2015: 015
Keyword [en]
FWED, Flywheel Exercise Device, Microgravity, Biomechanical Simulation, Countermeasure Exercise, Resistance Training, Motion Capture, AnyBody Modeling System, Leg Press, Squat
Keyword [sv]
FWED, Svänghjulsbaserad träningsutrustning, Tyngdlöshet, Biomekanisk simulering, Motverkande träning, Styrketräning, Motion Capture, AnyBody Modeling System, Benpress, Benböj
National Category
Medical Engineering
URN: urn:nbn:se:kth:diva-163212OAI: diva2:799255
Subject / course
Medical Engineering
Educational program
Master of Science - Medical Engineering
2015-01-23, 3-221, Alfred Nobels Allé 10, Huddinge, 12:25 (English)
Available from: 2015-05-27 Created: 2015-03-30 Last updated: 2015-05-27Bibliographically approved

Open Access in DiVA

File information
File name FULLTEXT01.pdfFile size 11274 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Technology and Health (STH)
Medical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 76 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 620 hits
ReferencesLink to record
Permanent link

Direct link