Overview
The purpose of this study is to investigate the effect of moderate altitude (>1000 m.a.s.l.) on sleep examinations (polysomnography).
Description
Polysomnographies will be done for each participant for 2 consecutive nights at the sleep laboratory in Chur (CH; 600 m.a.s.l.) as well as for 2 consecutive nights at the participants home elevations (CH; >1000 m.a.s.l.). Between the measurements at those two different altitudes there will be a two-week washout period at >1000 m.a.s.l.. The sequence of altitude exposure will be randomized.
Eligibility
Inclusion Criteria:
- Healthy (no current medical condition or intake of regular medication, except negligible medical issues or accidents not interfering with the current health status or physical performance.)
- Living above 1000 m.a.s.l. since at least 1 year
- No overnight stay at altitudes <1000 m.a.s.l. in the previous 4 weeks
- 18-70 years old
- Body mass index 18,5-30 kg/m2
- informed consent
Exclusion Criteria:
- Active diseases or health related conditions that require treatment (sleep disorders (mainly sleep apnea), chronic rhinitis, cardiovascular and lung diseases)
- Use of drugs that affect the respiratory center drive (sedatives, sleep inducing drugs, opioids), stimulants or illegal drugs
- Regular consumption of recreational drugs (alcohol and nicotine included)