KINE 2P20 Lecture Notes - Lecture 14: Phentermine, Sibutramine, Densitometry
9 May 2018
School
Department
Course
Professor
Nutrition 2P20
Storing kcals as FAT
- Metabolically simpler (use less energy) to convert dietary FFAs to TGs for storage than
glucose of AA to TGs
Healthy Body Weight
- The weight at which the risk of illness and death are the lowest
- Body Mass Index (BMI) – most common measure to asses healthy body weight
▪ Weight in kg/height in m (squared)
Lambert Adolphe Jacques
- Quetlelet’s estalished a siple easure for lassifyig people eight relatie to a
ideal weight for their height
- Quetelet Index (BMI) = mass/ht^2
Limitations of BMI
- Athletes, pregnancy
Location of body fat
- Subcutaneous fat is less risk than visceral fat
- The risk associated with visceral/abdominal fat is estimated by measuring waist
circumference
▪ WC>102cm for men and 80 for women is associated with increased risk
▪ Increased WC associated with higher incidence of heart disease,
hypertension, stroke, cancer and diabetes
Methods for Assessig Body Copositio…
Bioelectric Impedance Analysis
- Theory: current passes through you, good conductors = muscle, good insulators =
adipose
- Pros: cheaper
- Cons: affected by fluid balance, dehydration underestimates and exercise
overestimates, two compartments – fat & non-fat
Skinfold Thickness
- Theory: sum of skinfolds at various tissues = fat mass
- Pros: cheaper
- Cons: high variable, less accurate in overweight/obese and elderly, two compartments –
fat & non-fat
BMX (BodyMetrix)
- Theory: ultrasound signals at different body compartments, measures depth of tissue
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Metabolically simpler (use less energy) to convert dietary ffas to tgs for storage than glucose of aa to tgs. The weight at which the risk of illness and death are the lowest. Body mass index (bmi) most common measure to asses healthy body weight: weight in kg/height in m (squared) Quetlelet"s esta(cid:271)lished a si(cid:373)ple (cid:373)easure for (cid:272)lassifyi(cid:374)g people (cid:449)eight relati(cid:448)e to a(cid:374) ideal weight for their height. Subcutaneous fat is less risk than visceral fat. The risk associated with visceral/abdominal fat is estimated by measuring waist circumference: wc>102cm for men and 80 for women is associated with increased risk. Increased wc associated with higher incidence of heart disease, hypertension, stroke, cancer and diabetes. Theory: current passes through you, good conductors = muscle, good insulators = adipose. Cons: affected by fluid balance, dehydration underestimates and exercise overestimates, two compartments fat & non-fat. Theory: sum of skinfolds at various tissues = fat mass.
