This pilot study investigates the effects of cold-water immersion, traditional sauna use, and their combination on sleep architecture, glymphatic clearance, and psycho-affective health in military cadets. The study uses wearable technologies including the Oura Ring and the Applied Cognition Glymphatic Monitor to collect objective sleep and physiological data.
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Glymphatic clearance
Timeframe: End of baseline monitoring phase (Day 7), end of intervention week 1 (Day 14), and end of intervention (Day 28)
Sleep Efficiency
Timeframe: Each night of the baseline monitoring period (7days) and intervention phase (14days)
Pittsburgh Sleep Quality Index
Timeframe: At the end of the baseline monitoring phase (Day 7), end of intervention week 1 (Day 14), and end of intervention phase (Day 28)
Profile of Mood States: Total Mood Disturbance
Timeframe: At the end of the baseline monitoring phase (Day 7), end of intervention week 1 (Day 14), and end of intervention phase (Day 28)