472 4- Preg weight gain

why is weight gain importnat during preg

• weight gain in preg is directly related to fetal growth

• too little gain → LBW or SGA, may affect maternal ability to survive labour

• excessive weight gain associated with large infants (macrosomia) as grater than 4500g, inc in preg complications like diabetes and preeclampia

• 
  

maternal nutrition and course of preg developed from

concern abt hgih neonatal and infant mortality rates in the US comapred to other developed countries

importance of IOM pregnancy weight gain recs

weight gain during pregnancy arranged by pre-preg maternal BMI

• alot of cesarean deliveries ppl gained weight above IOM recs

the IOM and WHO use diff BMI thresholds so the same women could be classified diff depending on what system is used

rate of weight gain is key

differnt based on pre-preg weight and status

IOM recs women of short stature to gain

the lower end of range for their pre-preg BMI but 2009 recs dont agree due to lack of evidence

• woemn of short stature did not have inc risk of having SGA or LGA infant or risk of excessive postpartum weight retention over taller women

Adolescents who follow adult BMI cutoff points will likely be categorized in a lighter grp and advised to gain more weight

multiple fetusses weight gain rec

IOM used observational GWG data to women givign birth to twins

• REC: for twin pregnancy, normal weight women shd gain 17-25 kg, overweight 14-23 and obese 11-19kg by term.

• insufficient evidence for underweight women with multiple fetuses

protein is acumulated predominantly in the

fetus

of the adipose tissue gained during preg, most was deposited

subcutaneously . of total fat deposition, most went to the lower trunk

fetal fat mass is more strongly correlated with pre-preg BMI than

GWG

fetal lean body mass consists primarily of

glycogen (in muscle and liver tissue) , protein and water

u shape relationship between

GWG and fetal outcomes

the IOM rec total weight gain for women of normal weigth is

11.5-16kg

how long and what type of physical activity rec for preg

0-60min per session, 150 mins a week, spread throguhotu week

• aerobic and strength training

couvade syndrome also called

sympathetic pregnancy- where partner experriences some of same symptoms and behavour as expectatn mother