Increasing Survival Rate Following Hemorrhagic Shock and Traumatic Brain Injury in Austere Environments - Transport Data Analysis
Abstract
There were five cohorts of animals tested during the Prolonged Field Care project. There were 28 non-transport animals and 26 transport animals in total from the five cohorts. The non-transport animals were loaded onto a M997 ambulance lower left litter berth, but the vehicle was stationary. The transport animals were transported on a track for a total of about 40 minutes. There were two sets of track passes, each set of track passes contained two bumpy tracks (inside and outside bumpy), two smooth tracks (inside and outside smooth), and a half straddle between one of the bumpy tracks and one of the smooth tracks. At the very end of each set of track passes the vehicle went over an embedded six inch steel pipe, known as the half round, which created a significant mechanical shock. There were five six-degree of freedom sensors used during testing. Three where placed on the animal (head, scapula, and pelvis), one was placed underneath the back board, and one was placed on the litter berth. For the data, the Root Mean Square (RMS), Power Spectral Density (PSD), and Fast Fourier Transform (FFT) was calculated. From the RMS analysis of the data, the pelvis showed the most movement for each of the different tracks. For all of the tracks, the RMS of the pelvis was 12 to16 higher than the average RMS of the track. The vehicle had the lowest RMS on each of the tracks, 9 to 16 lower than the average RMS. The PSD analysis showed the most energy, in the 2 to 3 Hz range for all of the tracks, and this was also seen in the FFT analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 11, 2020
- Accession Number
- AD1118478
Entities
People
- Amy Lloyd
- Andrew Dodd
- Andrew Meyer
- Jeff Molles
- Julie Rannou-latella
- Laura Kroening
- Meghan Vermillion
- Rachel Kinsler
- Rebecca D Dodd
Organizations
- United States Army Aeromedical Research Lab