1 / 14

Metabolism

Metabolism. Definitions…. Metabolism – the sum of all the chemical processes whereby _______ is made available and used by the cells of the body Energy – the ability to do work. Catabolic Metabolism. Anabolic Metabolism. Two Types of Metabolism. Energy is used for….

glenda
Télécharger la présentation

Metabolism

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Metabolism

  2. Definitions… • Metabolism – the sum of all the chemical processes whereby _______ is made available and used by the cells of the body • Energy – the ability to do work

  3. Catabolic Metabolism Anabolic Metabolism Two Types of Metabolism

  4. Energy is used for…

  5. Energy Balance Equation • Resting Metabolic Rate (55-75%) + • Thermal Effect of Food (5-15%) + • Physical Activity (10-40%) = • Total Energy Expenditure (100%)

  6. Energy (cal.) & Body Weight • 1st Law of Thermodynamics • Weight gain • Weight loss • Weight maintenance

  7. Resting Metabolic Rate • The number of calories the body burns in a 24-hour period while at rest and fasting. • Liver ___% of total calories burned • Brain ___% • Heart ___% • Lungs ___% • Kidneys ___% • ________ ___% • At rest approx. ____% of energy is derived from stored body fat

  8. Resting Metabolic Rate & Gender • Resting metabolic rate (energy expenditure) is approximately 10% lower in women than men • RMR is essentially the same when expressed per unit of “fat-free mass” • Therefore, not a true gender difference

  9. Effects of Strength Training on Resting Metabolic Rate • 24 weeks strength training = increase RMR 6% - 9% • Each additional pound of muscle tissue = ____ kcal/day increase in metabolism

  10. Effects of Severe Caloric Restriction (Dieting) on RMR • _____% decline in RMR with severe caloric restriction - Result of: 1. ___________________ 2. ___________________

  11. Set Point “Theory” & Adaptive Thermogenesis • Hypothalamus establishes a “set point” or body weight that it will work to maintain • Adaptive Thermogenesis – the body will speed up or slow down metabolism to maintain the set point • If consume fewer calories… • If consume more calories… • To reset the set point

  12. Thermal Effect of Food • Calories burned to digest, absorb, and transport the nutrients in food we consumed. • Protein: 15-25% (of food calories) • Carbohydrate: 8-12% • Fat: 5%

  13. Physical Activity (thermal effect) • Calories burned to support physical activity • Activities of daily living - ________ Factor • Planned exercise - Intensity and duration

  14. Post Exercise Thermogenesis • The increased metabolic rate (calories burned) above resting metabolism (Resting Metabolic Rate) that follows cessation of exercise. • approx. 15% of total exercise caloric burn

More Related