Chapter 10 Flashcards
Fuel depends on intensity and activity (T/F)
F - intensity and duration
Benefits of Physical Activity
Increased : restful sleep nutritional health
Body composition
Bone density
Immunity
Circulation/lung fxn.
Self-image
Longer lifespan
Quality of life
Lowers: cancer risk, type 2 diabetes, gallbladder disease, anxiety/depression
How many mins of vigorous activity adults need per week
150 mins
What is Fuel use at rest?
1/2 FAs
other 1/2 mostly glucose
some AAs
What is Fuel use during activity?
majority from glycogen
then glucose and FAs
Supplements help enhance performance if well nourished (T/F)
F
Female are higher at risk of iron deficiency (T/F)
T
Sports anemia is considered a not true iron con
Fluid loss is 1Litres/hr in hot humid environment (T/F)
F - 2hrs
Should drink water before and after physical activity? (T/F)
F- Before, during, After
What are the electrolytes lost during exercise?
Sodium
Potassium
Chloride
Too much sugar (~7% sugar ) delays stomach emptying and intestinal absorption of water (T/F)
T
Products supposedly enhance performance
- “energy giving”
Ergogenic acids
What happens to consumed extra AA supplements
stored as energy after removal of nitrogen, increasing nitrogen excretion
Endurance athletes may get benefit of energy boost but provides no advantages during high-intense activity
Caffeine
non-essential nutrient needed by cells to transport fat molecules across mitochondrial membrane
Carnitine
Metabolism leads to production of toxin formaldehyde
Creatine
