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5 Cards in this Set

  • Front
  • Back
Positive vs Negative energy balance?
Positive: energy intake exceeds outtake - weight increase.
Negative: energy intake less than outtate - weight loss.
Major components of energy expenditure?
Basal metabolism: energy for basic living functions
Physical activity: energy needed for muscular work.
BMI? Fat distribution?
BMI: weight divided by height squared.
Fat distribution: waist:hip ratio
Explanations for obesity?
-increased calories
-portion sizes (green revolution)
-decreased physical activity; more tv watching, computer / internet use.
Risks associated with obesity?
-higher mortality rates
-increase rate of heart attacks, strokes, high BP
-diabetes, surgery
-certain cancers