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Cardiovascular fitness, a crucial component of physical health, refers to the efficiency with which the heart, lungs, and blood vessels deliver oxygen to working muscles during prolonged physical activity. In the field of physiological anthropology, which studies the interactions between biology and culture in human populations, gender and ethnic differences in cardiovascular fitness are important for understanding how genetic, environmental, and sociocultural factors shape human physiological function. Gender differences in cardiovascular fitness are well-documented and largely influenced by biological factors such as body composition, hormonal profiles, and muscle mass. On average, males tend to have higher levels of cardiovascular fitness than females, as measured by maximal oxygen uptake (VO₂ max), which is the gold standard indicator. This disparity is primarily due to differences in hemoglobin concentration, heart size, lung capacity, and muscle mass—all of ___ __________ ______ ___ _____ ____ _________ ___.
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