title: [Exertion tests, heart rate and changes in maternal posture].
mesh_terms: D000293:Adolescent; D000328:Adult; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D011187:Posture; D011247:Pregnancy / Q000502:physiology*; D011263:Pregnancy Trimester, Third
vernacular_title: Pruebas de esfuerzo, frecuencia cardíaca y cambios de posición matern