Physiological Characteristics of Masters Female Distance Runners

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Abstract
In brief: Ten masters female long-distance runners (mean age 43.8 years) were assessed for body composition and cardiovascular endurance. The mean body fat was 18.3%, which is approximately 40% of the value for a control group of sedentary women. The only women exhibiting lower values for Percent body fat were much younger elite athletes. VO2 max averaged 43.41 ml·kg−1 min−1, which is 25% higher than that of normal women of comparative ages. The question of whether a lifetime of endurance training can offset the age- related decrease in Vo2 max is still unknown, but the increased interest in masters competition may provide the data to answer this question.