Chapter 5 Flashcards
what does BW consist of
- FFM: muscle, bone, blood, organs
- fat mass: fat tissue, adiposites
in last 40 years BW increased
25 lbs
in last 10 years BW increased
15 lbs
Reason for increase of BW
- low OPA, LTPA, DPA
- low PA transportation, high EI
1st law of thermodynamics
energy not created or destroyed, but simply transfered
EI>EE=
increase BW
EE>EI=
lower BW
EI=EE=
no change in BW
increase in BW and body fat =. Why?
- lower RMR per kg
- less FFM per kg
RMR
370 + 21.6 (FFM kg)
FFM in kg
BW in kg x (1-BMI)
target BW
FFM (lbs)/1-%desired
FFM in lbs
BW in lbs x (1-BMI)
average adult gains ___ lbs/year
1/2 to 1
if physically active, you can maintain __ which means you can maintain __
FFM; RMR
chance of obese teen being obese in adulthood. Why?
85%; no change in habits
eye to mouth gap
average: 15-20%
overweight: 25-35%
obese: 40-50%
percentage of TEE
RMR: 60-75%
Thermo: 10%
PAL: 15-30%
PAL of TEE
- can be increased most
- max by AEx
- weight bearing, mod intensity, 40-60 min
RMR of TEE
- most crucial; minimize its loss
- some STx
% of pple who STx. Why?
less than 10%; its painful
pitfall of fasting
RMR lowers w/out change in FFM
moderate restriction diet
- 200-300 kcal deficit
- 25% of wt loss from muscle
very low caloric diet
- over 800 kcal deficit
- up to 50% of wt loss from muscle
low FFM =
low RMR
% of pple who maintain long term wt loss
5%
what % of wt loss is regained? Why?
- 95%
- SMART goals
- poor social support
- low PAEE predicated on BW
crash diets
muscle loss and water loss
low CHO diet
- quick wt loss: decrease in glycogen = loss of water
- no difference long term
- CHO: 20
- fat: 40
- prot: 40
1 most important consideration in wt loss
calories
