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Metabolism Metabolism

Metabolism - PowerPoint Presentation

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Uploaded On 2016-11-19

Metabolism - PPT Presentation

MOVE Support August 5 2014 Glenna Stewart MS RD LD Energy Balance Carbohydrate Fat Protein Basal Metabolism Physical Activity Digestion Absorption amp Processing Nutrients ID: 490574

metabolism basal body energy basal metabolism energy body activity kcal amp physical absorption digestion processing thermogenesis fat protein input

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Presentation Transcript

Slide1

Metabolism

MOVE Support August 5, 2014Glenna Stewart, MS RD LDSlide2

Energy Balance

Carbohydrate

Fat

Protein

Basal Metabolism

Physical Activity

Digestion, Absorption, & Processing Nutrients

Thermogenesis

ENERGY OUTPUT

ENERGY INPUTSlide3

Food hunts man..

Carbohydrate

Protein

Fat

Alcohol

Energy InputSlide4

Basal Metabolism

Lean Body MassBody Surface AreaGenderBody Temperature

Thyroid Hormones

Nervous System Activity

PregnancyCaffeine & Tobacco Use

Energy Output

Physical Activity

Digestion, Absorption & Processing Nutrients

ThermogenesisSlide5

Basal Metabolism

Minimum amount of energy expended in a fasting state to keep a resting, awake body alive in a warm quiet environment.

60-70% in a sedentary person

Let’s see how basal metabolism contributes to energy needs.Slide6

Basal Metabolism

2.2 lb for every kg, convert weight

200 / 2.2 = 90 kg

Rough estimate of basal metabolism:

0.9 kcal/kg per hour1.0 kcal/kg per hour 90 x 1 = 90 kcal/hr

90 x 24 = 2160 kcalSlide7

Basal Metabolism

Factors that Increase:

Lean

Body Mass

Body Surface AreaGenderBody TemperatureThyroid HormonesNervous System ActivityPregnancyCaffeine & Tobacco UseSlide8

Basal Metabolism

Factors that Decrease:

Low Energy Intake

10-20%

150 to 300 kcal/dayLoss of Lean Body Mass1-2% past age of 30 Physical Activity PreservesSlide9

Physical Activity

Increases basal metabolism by 25 – 40%.Varies widely among individuals

Varies among activities.

Examples: stairs vs elevator, walking vs driving, standing vs sitting.

Evaluation: leisure timeSlide10

Digestion, Absorption & Processing

Thermic Effect of Food (TEF)

Sales Tax: 5 – 10%

For every 100 calories of basal metabolism, 105 – 110 kcal.Food CompositionProtein (20-30%)Carbohydrate (5-10%)Fat (0-3%)Slide11

Thermogenesis

Increase in non-voluntary physical activity triggered by cold conditions or overeating.

Fidgeting, Shivering, Maintenance of Muscle Tone, Upholding Body PostureSlide12

Concept

Energy Balance = Input + Output

The Body Uses Energy for 4 main purposes:

Basal Metabolism (60-70%)

Physical Activity (20-30%)Digestion, Absorption, & ProcessingThermogenesis