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Quantitative Analysis of Selected Bone Parameters: Trabecular Spacing and Orientation in the Long Bones (COS 1129-2)
Principal Investigator
Research Area:
Skeletal physiology
Species Studied
Scientific Name: Rattus norvegicus Species: Rat Strain: Wistar


Past data suggest mineral loss is prevalent in weight-bearing bones following space flight. The primary goal of this research was to quantitatively determine, by optical diffraction techniques, changes in trabecular spacing (area density) and orientation under effects of weightlessness. One major goal of the research was to study changes throughout the area and height of both primary and secondary spongiosa in a trabecular region which is primarily weight bearing.

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Judy, M.M. et al.: Measurement of Trabecular Spacing and Orientation by Optical Diffraction. Bone Histomorphology, Third International Workshop, 1980.

Judy, M.M.: Quantitative Analysis of Selected Bone Parameters: Supplement 3A: Trabecular Spacing and Orientation in the Long Bones. Final Reports of U.S. Rat Experiments Flown on the Soviet Satellite Cosmos 1129. M.R. Heinrich and K.A. Souza, eds., NASA TM-81289, 1981, pp. 177-198.

Bone and bones
Bone density
Bone development
Bone matrix
Bone mineralization
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Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Distribution, Trabecula, mean spacing (density) and mean orientation, tibia, rat, Optical diffraction
Distribution, Trabecular spacing (density), tibia, bone, rat, Optical diffraction
Formation, Bone, in tibia, rat, Optical diffraction,
Morphology, Growth plate, tibia, bone, rat: Microscopy
Morphology, Matrix, tibia, bone, rat: Microscopy

Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Cosmos 1129 09/25/1979 10/14/1979 19 days

Additional Information
Managing NASA Center
Ames Research Center (ARC)
Responsible NASA Representative
Ames Research Center LSDA Level 3
Project Manager: Sylvain Costes
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Protocol / Approach
Hardware Items