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Functional Task Test (FTT) Muscle Performance Reliability Study (EORS_FTTMP)
Research Area:
Exercise physiology
Species Studied
Scientific Name: Homo sapiens Species: Human

Space flight induces a host of physiological changes that have detrimental effects on normal human function in normal gravity (1-G). Upon entry into a gravitational environment, astronauts must cope with impairments in strength, balance, and the ability to ambulate. The primary objective of the Functional Task Test (FTT) project is to develop and evaluate an integrated set of functional and physiological tests, and then use those tests to determine how postflight changes in sensorimotor, cardiovascular, and muscle physiology impact functional performance (e.g. standing, ladder climbing, and hatch opening).

Because the FTT project necessitates the development of novel tests, the reliability of each component test must be determined prior to data collection. Therefore, the purpose of this pilot study is to determine the reliability of novel tests designed by the Exercise Physiology Laboratory at Johnson Space Center (JSC) to quickly and safely assess muscle performance. Prior to initiating the flight-related portion of the FTT project, the reliability of these novel muscle performance tests must be determined.

Specific Aims:

(1) To determine the reliability of each test designed to quickly and safely assess muscle performance.
(2) To determine the time requirement of each of the muscle performance tests.

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Spiering BA, Lee SM, Mulavara AP, Bentley JR, Buxton RE, Lawrence EL, Sinka J, Guilliams ME, Ploutz-Snyder LL, and Bloomberg JJ. Test battery designed to quickly and safely assess diverse indices of neuromuscular function after unweighting. Journal of Strength and Conditioning Research. 2011 Feb;25(2):545-55.[]

Musculoskeletal physiology

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Data Information
Data Availability
Archive is complete. Data sets are not publicly available but can be requested.
Data Sets+ Request data

Lower body, force control
Lower body, isometric strength
Lower body, maximal power
Lower body, power endurance
Upper body, force control
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
ECP 02/01/2005 12/31/2010 In Progress

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Jessica Keune
Institutional Support
National Aeronautics and Space Administration (NASA)