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[Exercise test in young steers at 2800 M above sea level]
E Brust Mascher1, P Eisenberg de Smoler, J Zarco Rábago
1Instituto Neurológico de Montreal, Universidad de McGill, Canadá.
Archivos Del Instituto De Cardiologia De Mexico
|May 1, 1997
Summary
This study assessed the physical health of Mexican students, finding generally homogeneous heart rates but low physical capacity. Some individuals showed blood pressure variations, indicating potential health concerns despite good exercise tolerance.
Area of Science:
- Public Health
- Physiology
- Biomedical Engineering
Background:
- The Mexican Health Ministry (SSA) focuses on biological standards, early detection of health changes, and primary healthcare technology.
- This study was conducted in Cuajimalpa, a suburban area of Mexico City at 2800m altitude.
Purpose of the Study:
- To evaluate physiological parameters in a sample of Mexican students.
- To assess physical capacity and cardiovascular responses to exercise.
Main Methods:
- Measurements included height, weight, heart rate (HR), systolic and diastolic blood pressures (SBP/DBP).
- Data collected at rest (sitting, standing) and during treadmill exercise.
- Utilized equipment developed by the Center for Development and Technological Applications (CE-DAT).
Main Results:
- The population exhibited similar physical characteristics to other Mexican groups, with generally homogeneous HR.
- An orthostatic reflex was observed upon standing (27 beats/min for women, 22 for men).
- Low physical capacity was suggested by a homogeneous HR curve with a low correlation coefficient during early exercise, though exercise duration was good.
Conclusions:
- The study identified some individuals with atypical heart rates and resting systolic blood pressure.
- Despite low cardiac response during exercise, participants achieved good to excellent exercise durations.
- The findings support the need for advanced analysis of heart rate and pressoreceptor reflex for functional significance.