Key result
Late gestation pregnancy was associated with significantly lower respiratory exchange ratio at maximal exercise, peak postexercise lactate, and excess postexercise oxygen consumption versus controls.
Why the study?
Does late gestation alter metabolic and respiratory responses to maximal exercise testing in healthy women?
Population
28 healthy, physically active women
Comparison
Maximal cycle ergometer testing during late… vs Maximal cycle ergometer testing in nonpregnant…
Design
Cross-sectional
Follow-up
15 minutes post-exercise
Authors
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May blunt anaerobic metabolism during maximal exercise in late gestation; hypothesis-generating for pregnancy exercise guidelines.
Observational (n=28)
Does late gestation alter metabolic and respiratory responses to maximal exercise testing in healthy women?
Aerobic working capacity is preserved in late gestation, but carbohydrate utilization and anaerobic energy production may be blunted at high levels of exertion.
Heenan et al. (2001) conducted an observational in Pregnancy (n=28). Late gestation pregnancy vs. Nonpregnant state was evaluated on Respiratory exchange ratio at maximal exercise, peak postexercise lactate, and excess postexercise oxygen consumption. Late gestation pregnancy was associated with significantly lower respiratory exchange ratio at maximal exercise, peak postexercise lactate, and excess postexercise oxygen consumption versus controls.
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