Cardiorespiratory fitness in relation to cardiometabolic health in adult Mexican Rarámuri
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View abstract on PubMed
Summary
This summary is machine-generated.Cardiorespiratory fitness (CRF) is inversely associated with cardiometabolic risk factors in Mexican Rarámuri people. Despite high rates of overweight/obesity and hypertension, ultradistance runners showed minimal abnormal cardiac adaptations.
Area Of Science
- Cardiology
- Exercise Physiology
- Indigenous Health
Background
- Limited data exists on cardiorespiratory fitness (CRF) and cardiometabolic health among indigenous populations in Mexico.
- The Rarámuri (Tarahumara) people are known for their ultradistance running capabilities.
Purpose Of The Study
- To investigate the relationship between CRF and cardiometabolic health in adult Rarámuri.
- To assess cardiac health and physiological adaptations to ultradistance running in a Rarámuri subgroup.
Main Methods
- Cross-sectional study of 66 rural Rarámuri individuals at moderate altitude.
- Measurements included anthropometry, hemodynamics, plasma glucose, ECG, echocardiography, and CRF estimation via sub-maximal steptest.
Main Results
- Approximately 47% were overweight/obese, and 24% had hypertension.
- CRF showed significant inverse associations with hemodynamic and biochemical markers (excluding blood glucose).
- A subgroup of ultradistance runners exhibited minimal abnormal cardiac adaptations, with mild ventricular hypertrophy in three individuals.
Conclusions
- A high prevalence of overweight/obesity and hypertension was observed in the Rarámuri population.
- The expected inverse relationship between CRF and cardiometabolic risk factors was confirmed.
- Ultradistance running in this population appears to have minimal adverse effects on cardiac structure.
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