Medical University of South Carolina
This pilot study investigates the effects of cold-water immersion, traditional sauna use, and their combination on sleep architecture and psychological health in military cadets. The study uses wearable technologies including the Oura Ring to collect objective sleep and physiological data.
The study will enroll 45 military cadets from The Citadel Military College, randomized into three groups: Cold-Water Immersion (CWI), High Heat Sauna (HHS), and Combined (COM). Participants will undergo a 7-day baseline period followed by a 14-day intervention. Sleep architecture and psychological-affective health will be assessed using validated wearable devices and questionnaires. The study aims to identify intervention-specific improvements in sleep and psychological health.
1. Inclusion Criteria * 18 - 30 years of age * Enrolled military cadet at the Citadel Military College. * Access to a smartphone with access to appropriate app marketplace (Apple iOS 15, Android 8.0 or newer) and reliable data access. * Ability to access and operate Oura Ring application. 2. Exclusion Criteria * Medical contraindications to continuous wearing of the Oura Ring. * Current diagnosis of neurological conditions that impact vascular blood flow or the individual's ability to regulate temperature. * History of cardio-vascular conditions or history of poor blood…
Participants will complete 14 daily sessions of cold-water immersion exposure.
Participants will complete 14 evening sessions in the high heat sauna
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