Weight changes and Energy Requirements Flashcards
what are three components of pregnancy that are responsible for the most weight gain
fetus
extracellular fluid
maternal fat stores
3 parts to gestational weight gain and %
water 62%
fat mass 30%
fat-free mass 8%
what % of total weight gain is from the fetus
25%
when does 90% of fetal growth occur
second half of pregancy
where does most of the fat stores go during pregnancy?
thighs
when is weight gain expected during pregnancy
1/3 second trimester
2/3 third trimester
what does weight gain during the 1st and early 2nd trimester reflect
deposition and expansion of maternal tissue
what does weight gain in the late 2nd to the end of pregnancy reflect
fetal, placental and accumulation of amniotic fluid
how do nutrient needs change during in pregnancy
hormonal changes alter nutrient metabolism
what does the change in nutrient metabolism support
fetal growth and development
reproductive tissue accretion
maternal homeostasis
how much does TEE increase
106-180kcal/d
which component of TEE increases
basal energy expenditure
why does BEE increase
-uterus and fetal metabolism
-increased load on maternal heart and lungs
How much does energy intake change during the first trimester
extra energy is not required
How much does energy intake change during the first trimester
energy requirements do not change
