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July 16, 2026OxygenOpen Access

Resting and Physical Activity Energy Expenditure Across an Altitudinal Gradient: An Adjusted Analysis

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Authors

MBMargot Evelin Bernedo-ItusacaSCShantal Cutipa-TintaJMJudith Marie Merma-Valero

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Overview

Cross-sectional study evaluates energy expenditure and altitude in healthy residents, suggesting acclimatization effects on metabolism.

Key Points

  • This research aims to clarify the impact of altitude and demographic factors on energy expenditure.
  • Cross-sectional study of 141 healthy adults across four altitudes in Peru.
  • Resting energy expenditure and physical activity energy expenditure evaluated using continuous photoplethysmography.
  • Analyzed variables adjusting for age, sex, and body mass index using ANCOVA.
  • Unadjusted analysis showed increased resting and physical activity energy expenditure with altitude.
  • After adjustments, altitude's independent effect on energy expenditure was not significant.
  • Hb levels above 18 g/dL increased caloric cost due to blood hyperviscosity, particularly in females.

Cite This Study

Bernedo-Itusaca et al. (2026) studied this question.

synapsesocial.com/papers/6a5875cb2b46c88ba9ad185ahttps://doi.org/10.3390/oxygen6030019
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