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Lecture 5

Lecture 5 Weight Management.docx

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Health Sciences
Brent Faught

Lecture 5 – Weight Management [Hay et al. (2002)] Females Desire to change weight by body fat groupings (12-13 years of age) < 20 % BF 20 – 25% BF >25% BF *Vast majority of Females want Wanting to lose weight 24 21 41 to lose weight if under, over, or just the right weight Wanting to maintain weight 8 12 3 Wanting to gain weight 10 4 0 Males Desire to change weight by body fat groupings (12-13 years of age) <20 % BF 20-25% BF >25% BF *Males who are underweight all Wanting to lose weight 17 2 17 want to change or maintain Wanting to maintain weight 38 3 1 whether it be gaining or losing Wanting to gain weight 34 4 0 more weight Female Perceptions of their weight (12-13 years of age) *Females who think they Under weight Just right Over weight are underweight want to still Wanting to lose weight 8 26 72 lose or maintain weight, and Wanting to maintain weight 14 34 1 females who are the Wanting to gain weight 12 4 0 appropriate weight also still Male Perceptions of their weight (12-13 years of age) prefer to lose weight Under weight Just right Over weight *In males there is an even Wanting to lose weight 2 8 38 and appropriate distribution Wanting to maintain weight 10 35 6 in OV wanting to lose Wanting to gain weight 31 14 0 weight, UW wanting to gain weight, and males with the Concluding thoughts: appropriate weight wanting  After calculating their BMI the greater population of females whereto stay the same wanting to lose weight across the board, but when told what the numbers meant; some girls who are UW or just right still wanted to lose weight, or girls who are UW wanted to maintain being UW.  After calculating their BMI the greater population of males who are UW wanted to lose weight, gain weight, or maintain it, but when told what the numbers meant; the boys showed a normal distribution. (OV=lose weight, UW=gain weight, JW= maintain)  Therefore, Males show the appropriate response in weight management, where females are always striving to be thinner than they are, even when they are UW already. Calorie Balance Intake calories from Calorie Output- food used to maintain body function  Normal Calorie intake is 2000 calories per day  Goal is to create a positive energy balance Over weight (OV) and Obesity (OB) Definitions:  Over weight (OV): Weight greater than expected for a specific height  Obesity (OB): Excessive accumulation of body fat that increases the risk for health problems  Essential Fat: Fuel for your body, protection for organs, nerve conduction or insulators  3-7% male total body weight  10-15% female total body weight (higher due to hormone flux and body structure)  Stored fat: Too much or too little fat Gender Normal OV OB Male 11-17% 17% 19% or over Female 16-24% 24% 29% or over *** In Canada over 50% of population are OV or OB Strong correlation with risk of ill health in OV/OB indivi
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