Effects of BEMER Electromagnetic Field Intervention on Sleep, Readiness to Play and Injuries in Elite Athletes

Elite athletes (female football players) will be randomized to 1 of 2 conditions, comprising a BEMER electromagnet field mattress and a sham-mattress. The mattress is to be used in bed for 8 minutes each morning, and for 8 minutes each evening, for 10 weeks. The system has 3 intensity levels - low, medium, and high. The low level will be used for the 4 first weeks, the medium level for the following 2 weeks, and the high level for the last 4 weeks. Those in the sham conditions have a display and mattress looking identical, and follow the same procedure as those in BEMER electromagnet field mattress condition. The primary outcome comprises total sleep time and sleep efficacy assessed with a sleep radar as well as readiness to play (composite measure of daily self-report of fatigue, sleep quality, muscle soreness, stress and mood). Secondary outcomes comprise duration of deep sleep also assessed with the sleep radar, injury severity, and rate of perceived exertion following training and matches. Baseline registrations are conducted for 4 weeks prior to the intervention and outcomes are registered during the last 4 weeks of the intervention.

NCT Number	NCT07299669
Lead Sponsor	University of Bergen Collaborators: Western Norway University of Applied Sciences, Norwegian University of Science and Technology
Conditions	Fatigue Recovery
Enrollment	60 participants
Start Date	2025-01-18
Primary Completion	2025-10-15 (estimated)
Study Completion	2025-10-15 (estimated)
Updated on ClinicalTrials.gov	2026-01-06