Kinesiology 2962A/B Study Guide - Midterm Guide: Ligamentous Laxity, Uterine Artery, Gestational Diabetes

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Most changes begin early, even before pregnancy recognized. Most are hormonally driven: progesterone (needed for pregnancy), estrogen, renin/aldosterone, cortisol, insulin (gestational diabetes) 9 mo. , calculated from the last date of your menstrual cycle. 1-3 mo- 1st trimester, you often can"t tell your pregnant. 4-6 mo- 2nd trimester, can tell your pregnant. Measure from pubis from top of uterus. Designed to optimize conditions for fetus & prepare for delivery. Delivery of o2 & nutrients (body temp ) = a walking incubator. Connected via the placenta (life support system, receives nutrients & recycles blood: why we don"t reject the baby, creates extreme fatigue. Morning sickness (can happen at any time of the day) Spotting or light, irregular menstrual flow (lining prepares for implantation) Heart has to work harder to pump all the blood. If you are fit before = you are fit during pregnancy. Hr increases by 10-15 bpm (fetus = 110-140 bpm) Cardiac output increases by 40-50% by 5th week.