4 ms·

hmm... > they jumped from an average altitude of 0.6 m (SD 0.1) on aircraft moving at an average of 0 km/h > The study also has several limitations. First and

by weikju 2y ago

hmm... > they jumped from an average altitude of 0.6 m (SD 0.1) on aircraft moving at an average of 0 km/h > The study also has several limitations. First and most importantly, our findings might not be generalizable to the use of parachutes in aircraft traveling at a higher altitude or velocity. Consideration could be made to conduct additional randomized clinical trials in these higher risk settings. However, previous theoretical work supporting the use of parachutes could reduce the feasibility of enrolling participants in such studies

chatmasta 2y ago
It seems this is a study about randomized controlled trials, not about parachutes :)
- tripletao 2y ago
  I believe that deplorable paucity of RCT evidence was first noted in 2003, in "Parachute use to prevent death and major trauma related to gravitational challenge: systematic review of randomised controlled trials" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC300808/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC300808/ I'm glad to see that's finally been addressed! Though for the counterpoint, also see "Most medical practices are not parachutes: a citation analysis of practices felt by biomedical authors to be analogous to parachutes" https://www.cmajopen.ca/content/cmajo/6/1/E31.full.pdf https://www.cmajopen.ca/content/cmajo/6/1/E31.full.pdf