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Rim-To-Rim Wearables At The Canyon For Health (R2r Watch): Physiological, Cognitive, And Biological Markers Of Performance Decline In An Extreme Environment, Kristin Divis, Robert Abbott, Cathy Branda, Glory Emmanuel-Aviña, Jon Femling, J. Gabriel Huerta, Lucie Jelinková, J. Kyle Jennings, Emily A. Pearce, Daniel Ries, Danielle Sanchez, Austin Silva

Journal of Human Performance in Extreme Environments

Success in extreme environments comes with a cost of subtle performance decrements that if not mitigated properly can lead to lifethreatening consequences. Identification and prediction of performance decline could alleviate deleterious consequences and enhance success in challenging and high-risk operations. The Rim-to-Rim Wearables at the Canyon for Health (R2R WATCH) project was designed to examine the cognitive, physiological, and biological markers of performance decline in the extreme environment of the Grand Canyon Rim-to-Rim (R2R) hike. The study utilized commercial off-the-shelf cognitive and physiological monitoring techniques, along with subjective self-assessments and hematologic measurements to determine subject performance and changes across the …