SSEH3301 Lecture Notes - Lecture 9: Dried Fruit, Unsaturated Fat, Breakfast Cereal
SSEH3301: Week 9 Lecture - Exercise Prescription & Nutritional Advice for Weight Control
-Overweight/obesity big problem in
community!
- population as whole has more people who
are overweight/obese than acceptable weight !
!
-Smaller proportion of normal weight !
-as the years go by, high proportion of obesity/overweight (trend is similar in USA and australia)!
-Prevalence of obesity increasing!
Half tonne man: !
-500kg+!
-Lost about 200kg!
-Died due to complications!
How is it possible to see such high rates of obesity? ENERGY BALANCE!
-physical activity not the only way to expend
energy (digestion of food and metabolism also),
but physical activity only one with conscious
control!
-losing weight: requires energy imbalance: EE > EI!
-eat too much = gain weight!
-Not exercising enough = gain weight!
= generally: we are doing less PA compared to
the past (because of labour saving devices)!
-eating more than the past? Maybe!
Biology: !
-genetically prone to overeating/sedentary!
-Even if genetically prone to overeating = has
conscious effort to eat = genetics loads the
gun but lifestyle pulls the trigger (choices you make that matter)!
Early life:!
-in mother’s womb especially = can increase risk of overweight if mother doesn’t take care of
what she’s eating when pregnant!
Disorder:!
-can increase weight by 5-8kg but shouldn’t be making them overweight/obesity!
-They have to work other to watch what they eat/PA!
Environment:!
-tend to drive a lot based on how city set up!
-Medications people are on these days (side effects: weight gain) - but shouldn’t make you
overweight/obese, just need to work harder!
-Smoker: eat instead of smoke to fulfil the need!
Despite all these factors: it is their conscious effort: eating and PA!
2 components:!
1.Less time of PA!
-more sedentary time !
-Labour saving technologies!
!
-risk of being obese!
-People who are more PA, lower risk of obesity!
-Green dot: watch most TV!
-even if you exercise a lot, but you also sedentary,
risk of obesity still higher than if you spend less
time being sedentary !
Classifying obesity/overweight!
-SF!
-Dexa!
-Weighing machine!
!
-carrying excess body fat is huge risk to health!
CDHHCOMP!
Hyperlipidaemia: high cholesterol!
Overall risk of death: increasing BMI = increase risk of
death!
-BMI between 25-29.9 = overweight!
->30 = obese!
Weight loss achieved: massive impact on those health risk and overall risk of mortality!
-weight loss = decrease mortality!
-BUT must be permanent: fluctuating weight may increase risk!
= to lose weight: EI from food and drink < EE through PA
and metabolism!
One small biscuit = 420 kJ!
- if do everyday: >3kg weight gain in a year!
Document Summary
Sseh3301: week 9 lecture - exercise prescription & nutritional advice for weight control. Population as whole has more people who are overweight/obese than acceptable weight. As the years go by, high proportion of obesity/overweight (trend is similar in usa and australia) Physical activity not the only way to expend energy (digestion of food and metabolism also), but physical activity only one with conscious control. Losing weight: requires energy imbalance: ee > ei. = generally: we are doing less pa compared to the past (because of labour saving devices) Even if genetically prone to overeating = has conscious e ort to eat = genetics loads the gun but lifestyle pulls the trigger (choices you make that matter) In mother"s womb especially = can increase risk of overweight if mother doesn"t take care of what she"s eating when pregnant. Can increase weight by 5-8kg but shouldn"t be making them overweight/obesity. They have to work other to watch what they eat/pa.
