8338 Lecture Notes - Lecture 5: Stroke Volume, Prenatal Development, Childhood Obesity

• School: University of Canberra
• Department: University of Canberra
• Course: 8338
• Professor: Professor

Document Summary

L5 - prenatal development - part 2 (mother) First trimester: hormone levels fluctuate resulting in morning sickness, often develop an aversion to foods or cravings, breast tenderness, tiredness and fatigue, can develop constipation and/or diarrhoea, weight gain is almost negligible - shouldn"t be that much. Space for the foetus to move is now becoming limited. Part 2: changes in maternal physiology (focusing on exercise) Cardiorespiratory system: want to maintain delivery of oxygen and nutrients to foetus via placenta, blood volume increases 40 to 50% Iron and folate is important to prevent haemodilution: plasma volume expands (water and protein) (white part) which dilutes red blood cells. Harder to carry oxygen as less per unit of blood: exercise can cause dehydration, resting and submaximal heart rate is increased. Maybe due to increased sns input during exercise - increased risk of hypotension which makes you light headed, dizziness, falls.