energy consumption of the body - university of notre damensl/lectures/mphysics/medical physics/part...
TRANSCRIPT
![Page 1: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/1.jpg)
![Page 2: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/2.jpg)
BMR
BMR;
BMR
BMR
![Page 3: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/3.jpg)
BMR
BMR
The brain constitutes only 2.5% of body weight, but is responsible for ≈ 20% of the BMR (dreams). It requires a fair amount of oxygen consumption.
![Page 4: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/4.jpg)
![Page 5: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/5.jpg)
![Page 6: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/6.jpg)
![Page 7: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/7.jpg)
![Page 8: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/8.jpg)
![Page 9: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/9.jpg)
![Page 10: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/10.jpg)
Typical time course of weight loss during a period of constant difference between metabolic expenditure and caloric intake.
( 388 kcal/day deficit )
388/9.3 = 42g of fat per day
∼1/10 lb loss per day afterequilibrium is reached
Weightchange early is obscured by retentionof H2O ( due to fatmetabolism )
![Page 11: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/11.jpg)
![Page 12: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/12.jpg)
However, internal work appears as muscle heat ∆Q (not as external work ∆W) and the internal work WL reduces the internal energy U.
![Page 13: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/13.jpg)
![Page 14: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/14.jpg)
![Page 15: Energy consumption of the body - University of Notre Damensl/Lectures/mphysics/Medical Physics/Part I... · reduced to body fat into Um the AUœ370û long a have to be on a diet of](https://reader034.vdocuments.site/reader034/viewer/2022042209/5ead1a240718fc02e0011319/html5/thumbnails/15.jpg)