Cardiac Stroke Volume at Rest and During Different Exercise Intensities

Cardiac Stroke Volume at Rest and During Different Exercise Intensities

The main aim of the present investigation is to study cardiac function in different exercise intensities in healthy human subjects. Two techniques will be used: cardiac ultrasound-derived stroke volume measurements and body impedance measurements. 20 healthy men (n=10) and women (n=10) aged 18-45 years will be investigated at rest and during exercise. All study procedures are non-invasive.

Inclusion Criteria:

• Age 18-45
• BMI 18-30
• Resting Blood pressure < 140/90 mmHg
• Participation in regular exercise

Exclusion Criteria:

• Acute illness
• Pregnancy
• Pace maker
• Artificial joint
• History of a cardiac event
• Insulin or medically treated diabetes
• Any chronic disease or condition that could create a hazard to the subject safety, endanger the study procedures or interfere with the interpretation of study results
• Abundant use of alcohol
• Use of narcotics
• Smoking of tobacco or consuming snuff tobacco
• Diagnosed depressive or bipolar disorder
• Abnormalities in resting ECG (revised by the study physician)