Task Book: Biological & Physical Sciences Division and Human Research Program
Advanced Search     

Project Title:  The Constant Force Resistive Exercise Unit (CFREU) for Multi-Functional Exercise Reduce
Fiscal Year: FY 2009 
Division: Human Research 
Research Discipline/Element:
HRP HHC:Human Health Countermeasures
Start Date: 03/06/2009  
End Date: 03/05/2011  
Task Last Updated: 06/19/2009 
Download report in PDF pdf
Principal Investigator/Affiliation:   Colosky, Paul  M.S. / Valeo Human Performance 
Address:  1235 Clear Lake City Blvd., Suite F 
Houston , TX 77062-8105 
Phone: (281) 488-5877  
Congressional District: 22 
Organization Type: INDUSTRY 
Organization Name: Valeo Human Performance 
Joint Agency:  
Project Information: Grant/Contract No. NNX08CC17P 
Responsible Center: NASA JSC 
Grant Monitor: Norsk, Peter  
Center Contact: 
Solicitation / Funding Source: SBIR Phase II 
Grant/Contract No.: NNX08CC17P 
Project Type: GROUND 
Flight Program:  
TechPort: No 
No. of Post Docs:  
No. of PhD Candidates:  
No. of Master's Candidates:  
No. of Bachelor's Candidates:  
No. of PhD Degrees:  
No. of Master's Degrees:  
No. of Bachelor's Degrees:  
Human Research Program Elements: (1) HHC:Human Health Countermeasures
Human Research Program Risks: (1) Aerobic:Risk of Reduced Physical Performance Capabilities Due to Reduced Aerobic Capacity
(2) Muscle:Risk of Impaired Performance Due to Reduced Muscle Mass, Strength and Endurance
Human Research Program Gaps: (1) M07:Develop the most efficient exercise program for maintenance of muscle fitness (IRP Rev F)
(2) M08:What is the minimum exercise regimen needed to maintain fitness levels for tasks? (Gap merged with M7, per IRP Rev F)
(3) M09:Identify and validate exploration hardware for maintenance of muscle fitness (IRP Rev F)
Task Description: NASA's vision for future exploration-class missions has made countermeasures for muscle atrophy, bone loss and cardiovascular deconditioning areas of major research design and development within the U.S. space program. Due to restricted volume and mass capabilities within the newly-developing Crew Exploration Vehicle (CEV) and Lunar Surface Access Module (LSAM), there is a need for a multi-functional, compact exercise machine that can incorporate both resistive and aerobic exercise capabilities during lunar sortie missions. The proposed innovation is an exercise device, the multi-functional Constant Force Resistive Exercise Unit (CFREU), that can provide a whole-body workout for aerobic exercise and resistive exercise. The device provides constant force eccentrically and concentrically during multiple exercise configurations, allows resistance selection in 2.5kg increments, requires no power to operate, requires no on-orbit maintenance, and can be stowed in an area of 1 cubic foot. During the Phase II performance period, we propose to develop a fully-functional CFREU, as well as to perform a usability study.

POTENTIAL NASA COMMERCIAL APPLICATIONS: Valeo's competitive advantage lies within the CFREU design. The unit is compact, easy to use, requires no power to operate, and requires no on-orbit maintenance or calibration. There is an evident need for a gravity-independent exercise unit that can provide a constant force for resistive exercise with integrated aerobic capability fashioned in a compact and lightweight design that offers familiarity, safety, and comfort during exercise.

Research Impact/Earth Benefits: Rehabilitation institutions would benefit from the multi-functional CFREU design. A portable exercise machine that can provide aerobic and constant force resistive capabilities in such a small volume is essential in clinical settings, and would prove especially beneficial in treating patients confined to bed rest. Physiologically, the constant force resistance provided by the CFREU is comparable to a traditional weight stack machine, but without the bulkiness and mass of weight plates.

The personal home exercise equipment industry would also benefit from the multi-functional CFREU device. The compact force packs of the CFREU allow the overall unit to be small enough for easy use as a home gym. For the home gym design, future force packs can be designed such that they may be purchased individually by a consumer, and used as portable exercise devices when not in use with the full CFREU. Thus, the force packs replace the need for expensive, heavy, and bulky traditional weight plates, and allow portability.

Task Progress & Bibliography Information FY2009 
Task Progress: New project for FY2009. Reporting not required for this SBIR Phase 2 project.

Bibliography Type: Description: (Last Updated: )  Show Cumulative Bibliography Listing
 None in FY 2009