Resting Metabolic Rate =RMR Physical Activity Energy Expenditure=PAEE PAEE is composed of Exercise Energy Expenditure
SALLY BOWMAN, M.ED,RD,CSSD,LD
or ExEE and Non-exercise Energy Expenditure or NEAT Thermic Affect of Food or TEF accounts for about 10% of energy needs Summary: RMR=PAEE (ExEE + NEAT) + TEF
Energy Balance Defined
Calories In (food)=Calories Out
Variety of Energy Needs Wide range of energy needs among male/female
athletes Significant differences in needs among sports
Calories In = RMR + PAEE + TEF Weight Loss: Calories In < RMR + PAEE + TEF Weight Gain: Calories In > RMR + PAEE + TEF
Example:
Injured female cross country athlete: 1500-2000 cal Injured male cross country athlete: 1800-2500 cal High school/club female swimmer: 2500-6000 cal High school/club male swimmer: 3000-8000 cal Michael Phelps: 12,000 cal/d!!!
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Energy Availability Energy Availability=Energy Intake (kcal)-Exercise Energy Expenditure (kcal)
Fat-Free Mass FFM (In kg)
Low Energy Availability: Example 15 year old cross country runner, amenorrhea Ht: 64” Wt: 115 lbs Body Comp: 15% BF, 43.2 Kg LBM Current Intake: 1600 cals
Example: Female, 20 yrs old, 55 kg (121 lbs), 43 kg FFM (94.6 lbs)
