About this trial
To study the effect of relocation from high altitude (Quito Ecuador: 2850m) to sea level and re-ascent from sea level to 2850m on heart rate variability and other hemodynamic parameters in healthy individuals, who live permanently \>2600m.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Adults aged 18-80 years and of all genders
Permanent residence > 2600 m
healthy: no self perceived cardiopulmonary disease limiting daily activities
written informed consent to participate in the study.
Disqualifiers
Age <18 years or >80 years
Participants who cannot follow the study investigations
Participants permanently living < 2600m
Participants who traveled and stayed overnight at altitudes <2000 m in the past 4 weeks.
Trial design
Single group
Treatments tested in this trial
Descent and re-ascent (2850m, sea level)
BehavioralDescent from 2850m to sea level (in one day by bus) and re-ascent after 7 days from sea level to 2850m (in one day by bus)
Treatment groups
Trial outcomes
Primary outcomes
Heart rate variability HRV during descent and re-ascent
Difference/change in heart rate variability at different altitudes during descent (2850m to sea level) and during re-ascent after 7 days (sea level to 2850m) in healthy individuals
Secondary outcomes
SpO2 during descent and re-ascent
Difference/change in SpO2 at different altitudes during descent (2850m to sea level) and during re-ascent after 7 days (sea level to 2850m) in healthy individuals
ECG-Repolarization during descent and re-ascent
Occurrence/changes in cardial arrhythmias at different altitudes during descent (2850m to sea level) and during re-ascent after 7 days (sea level to 2850m) in healthy individuals
Cardial arrhythmias during descent and re-ascent
Occurrence/changes in cardial arrhythmias at different altitudes during descent (2850m to sea level) and during re-ascent after 7 days (sea level to 2850m) in healthy individuals
Pulse transit time during descent and re-ascent
Occurrence and difference/change in pulse transit time (drops) at different altitudes during descent (2850m to sea level) and during re-ascent after 7 days (sea level to 2850m) in healthy individuals
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Silvia Ulrich Somaini
Lead sponsor
University of Zurich
Sponsor institution
This trial is not recruiting at the moment. You can still explore other options: