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Flashcards in BPK 110 Chapter 10 Deck (43)
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How much physical activity do we need per week?

150 minutes of moderate to vigorous physical activity accumulated in 10 minute bouts


Fun fact: Try not to experience overtraining syndrome



How many strength training activity do we need per week?

We need 2 days of strength straining activity per week


What does exercise reduce in terms of risk of chronic disease?

Exercise reduces the risk of cardiovascular disease, hypertension, type 2 diabetes, colon and breast cancer, bone and joint disorders, depression and anxiety, obesity.


What are 4 main fuel sources for physical activity

Fatty acids
Amino acids


What is 3 kind of activities that are considered aerobic activities?

Rhythmic, repetitive, sustained activities where oxygen delivery matches oxygen need.


What does aerobic activities use? 3 things

Aerobic activities uses glucose, fatty acids, amino acids to produce energy (ATP)


What is 2 things considered anaerobic activities?

Short and/or intense bouts of activity where oxygen delivery cannot match high oxygen need


What kind of nutrient does anaerobic activity use?

Anaerobic activities uses glucose for fuel


_______ _____ can release phosphate which combines with _____ to form ATP.

Creatine phosphate can release phosphate which combines with ADP to form ATP and creatine


Fun fact: Initial energy's supply is limited

Fuels activity for 8 - 15 seconds of maximal effort


Fun fact: Creatine phosphate can release phosphate which combines with ADP to form ATP and creatine

During anaerobic activities


What are 3 things about anaerobic metabolism?

1. Used during anaerobic activities liked weight-lifting and sprinting
2. Fuel activities from 20sec to 2 mins
3. More likely to result in fatigue


What are 4 things about aerobic metabolism

1. Used during aerobic activities like running or spinning
2. Alone fuels activities 2 minutes to 20 minutes
3. With fatty acids fuels activities for over 20 minutes
4. Less likely to result in fatigue


What are 2 things about aerobic metabolism of fatty acids?

1. Initially during exercise blood [fatty acid] decreases
2. After 20 minutes, there is an increase in release of fatty acids from stores, becoming the primary fuel source for exercising muscles


What are 3 things about using protein as fuel for exercise? 3 things

1. Protein is not a major energy source for the body
2. Protein contributes a small amount to energy expenditure during activity and at rest
3. Protein promotes growth and repair of tissue, needs may therefore increase with activity levels


If duration is 8 - 15 seconds and intensity is extreme, then what is the fuel source?



If duration is 15 sec - 2 mins and intensity is very high, then what is the fuel source?

Anaerobic glycolysis


If duration is 2 - 20 minutes and intensity is high, then what is the fuel source?

Aerobic glycolysis


If duration is 20 minutes greater and the intensity is moderate, then what is the fuel source:?

Fatty acid oxidation


Why is fat-burning zone misleading?

Because you don't burn as much calories as the cardio zone. Instead, you burn more fat.


What are 5 physiological changes caused by aerobic training?

1. Increase cell's capacity to burn fatty acids for ATP
2. Heart becomes larger, stronger: cardiac output increases
3. Total blood volume and red blood cell numbers increases
4. Muscle increases ability to store glycogen
5. Number and size of muscle mitochondria increases


What are 5 nutrient considerations for athletes

1. Need adequate vitamins and minerals to maximize performance
2. Oxidative damage increases with high levels of activity; need for antioxidants is increased
3. Iron needs may increase as more blood cells are formed
4. Water need increase as sweat loss increases
5. May need to also replenish electrolytes if sweating is excessive (to prevent hyponatremia)


How do we do glycogen supercompensation? Only recommended for endurance athletes

1. Glycogen stores and endurance are increased by carbohydrate loading, but will max out.
2. Rest for (1-3 days), consume high-carbohydrates diet (10-12g/kg body weight) before competition


What are 5 points of pre-exercise meal?

1. Meals should maximize glycogen stores, adequately hydrate and minimize digestion, hunger and gastric distress
2. Meals may contain approximately 300kcals; be higher in carbohydrate (60-70%), moderate in protein (10-20%), low in fat (10-25%)
3. If weight loss is goal, a smaller meal may be necessary
4. The meal shouldn't be eaten too close to the activity to prevent digestive issues
5. For competition day: don't consume new food


What do endurance activities require?

1. Carbohydrates to maintain glucose supplies for ATP
Carbohydrates can be consumed every 15-20 minutes, carbohydrates should have both glucose/fructose. 30-60g of carbohydrate per hour is recommended


What are 2 things about eating after exercise?

1. Meals should replenish fluid, electrolytes losses, glycogen stores and provide protein for growth/repair of muscle
2. To maximize glycogen replacement, high carbohydrates meals that also include protein should be consumed within 30 minutes


What are 4 principles for food handling?



What does organic refer to?

Food produced through more natural and environmentally friendly methods


What is 3 things about organic foods

1. Typically lower in nitrates, pesticide residues
2. As a whole, organic foods are not more nutrient dense than conventional foods
3. More expensive than conventional food