Our purpose was to (1) determine the Froude number at the PTS in actual lunar gravity during parabolic flight and (2) compare it with the Froude number at the PTS in simulated lunar gravity during overhead suspension. In normal Earth gravity, the PTS occurs at a Froude number of 0.5 in adult humans, but previous reports found the PTS occurred at Froude numbers greater than 0.5 in simulated lunar gravity. The dynamic similarity hypothesis suggests that the PTS should occur at the same Froude number across gravitational environments.
Quantifying the preferred transition speed (PTS) from walking to running has provided insight into the underlying mechanics of locomotion.
The preferred walk to run transition speed in actual lunar gravity.ĭe Witt, John K Edwards, W Brent Scott-Pandorf, Melissa M Norcross, Jason R Gernhardt, Michael L
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