University of California, San Francisco
This is a study to look at the effect on breathing of various ways to package a person in a rescue litter. We will measure lung function in a litter, lying down, lying down in a vacuum mattress, one the side in a vaccum mattress, and vertical in a vacuum mattress.
After acknowledging informed consent, each subject will do baseline sitting pulse oximetry (device) and forced vital capacity (FVC) and 1-second forced expiratory volume (FEV1) three times. After obtaining a baseline, the subject will be secured with a MedTech-VSB 6 foot vacuum mattress (MedTechSweden, Geneseo, IL) in a Ferno-Washington Model 71 litter (Ferno-Washington, Wilmington, OH) using 1-inch tubular webbing, following the methodology of the National Cave Rescue Commission but with no padding and no blankets, see figure 1 .8 The mattress will be deflated (stiffened) to start after secur…
Inclusion Criteria: * Subjects must be 18 to 65 years old. Per the harness manufacturer's recommendation, participants must weigh between 130 and 300 pounds and have a waist between 32 and 42 inches. Exclusion Criteria: * Weight greater than 300 pounds or less than 130 pounds, pregnancy, any known heart condition or murmur or lower extremity edema or wheezing detected on pre-participation exam, or a waist size \<32" or \>42". Prior to suspension, female participants of childbearing potential will self-administer an FDA approved urine pregnancy test supplied by the investigator. Results will…
Different packaging paradigms in a rescue litter done in a random order.
Arctuva estimate
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