Metabolism

Question 1

Metabolism

Answer 1

Referral of the collective different chemical reactions a body performs
• two parts
1. Catabolism: break down of material
2. Building of larger more complex molecules

Question 2

Basal Metabolic Rate

Answer 2

• energy uses per day at rest
• no physical activity

Females
• BMR = 655 + (4.35 x lbs) + (4.7 x ht in inches) - (4.7 x age in yrs)

Males
• BMR = 66 + (6.23 x mass in lbs) + (12.7 x ht in inches) - (6.76 x age in yrs)

Question 3

EPOC (Afterburner) pt. 1

Answer 3

• Excess post-exercise oxygen consumption
• an increased rate of oxygen intake after strenuous mild to intense activity
• intended to restore body back to its pre-exercise state

Question 4

EPOC (Afterburn) pt. 2.

Answer 4

• EPOC is influenced by the intensity, not the duration of exercise
- the more ATP and O2 consumed, the more need to be replenished

• Metabolism increases

• 19%-21% increase in mean lasting 24-48 hrs
• 19%-21% increase in women lasting 16hrs (due to lean muscle mass)

Question 5

Calorie Intake vs Output: Weight Gain

Answer 5

• occurs when the amount of calorie intake exceeds the amount of calories used daily

Question 6

Metabolic Rate

Answer 6

• the rate at which at which the body converts stored energy into working Energy (building and breaking)

Question 7

Factors Affecting Meabolic Rate

Answer 7

• body size
• body composition
• physical activity
• sex
• hormones
• age
• heredity
• climate and temperature

Question 8

Factoring Exercise into BMR

Answer 8

• little to no exercise
- daily calories needed = BMR × 1.2
• light exercise (1-3 times/week)
- daily calories needed = BMR × 1.375
• moderate exercise (3-5 times/week)
- daily calories needed = BMR × 1.55
• heavy exercise (6-7 times per week)
- daily calories needed = BMR × 1.725
• very heavy exercise (2 intense workouts/day)
- daily calories needed = BMR × 1.9

Question 9

EPOC: O2 Function During Recovery Period

Answer 9

• production of ATP to replace ATP used during workout
• recent cases of muscle glycogen from lactate
• restore O2 levels in blood
• work with protein to repair damaged muscle tissues
• restore body temperature to resting levels
*Note: body expends 5 calories to consume 1L od O2

Question 10

Calorie Intake vs Output: Weight Loss

Answer 10

• occurs when the amount of calorie intake is below the amount of calories used daily
• 1 lb of fat = 3500 kcal