BYU NDFS 100 Exam 3 - Chapter 10:
Nutrition: Fitness and Sports
Questions and Answers.
Benefits of fitness - Answer - bone health
- better physical and cognitive functioning
- manage weight gain
- lower anxiety and depression
- better sleep
- lean body mass
- lower cancer risk
- lower hypertension risk
- lower type 2 diabetes
Guidelines for physical activity - Answer - Aerobic—150 min/wk moderate or 75 min/wk
vigorous, 5 or more days a week
- Strength—2+ days/wk
- Flexibility—at least 2-3 days/wk
- Avoid inactivity and choose an active lifestyle
Kinds of body fuel used during training - Answer - mixture of glucose, fatty acids, and some
amino acids
- depends on intensity/oxygen availability, duration, and body's training
Body fuel at rest - Answer - FATTY ACIDS, glucose, amino acids
Body fuel at start of activity or intense exercise - Answer - creatine phosphate, GLUCOSE,
amino acids, fat
Body fuel continuation of activity - Answer - FATTY ACIDS, glucose, amino acids
How does the body get energy from carbs, proteins, and fats - Answer - If plenty of oxygen is
available to cells>> aerobic energy system, more fat is burned
- If there is a sudden increase in activity or if intensity is high enough >> anaerobic energy
system, more carbs burned
- There's a limit to how quickly oxygen can be used, so we can produce some energy without it
Nutrition: Fitness and Sports
Questions and Answers.
Benefits of fitness - Answer - bone health
- better physical and cognitive functioning
- manage weight gain
- lower anxiety and depression
- better sleep
- lean body mass
- lower cancer risk
- lower hypertension risk
- lower type 2 diabetes
Guidelines for physical activity - Answer - Aerobic—150 min/wk moderate or 75 min/wk
vigorous, 5 or more days a week
- Strength—2+ days/wk
- Flexibility—at least 2-3 days/wk
- Avoid inactivity and choose an active lifestyle
Kinds of body fuel used during training - Answer - mixture of glucose, fatty acids, and some
amino acids
- depends on intensity/oxygen availability, duration, and body's training
Body fuel at rest - Answer - FATTY ACIDS, glucose, amino acids
Body fuel at start of activity or intense exercise - Answer - creatine phosphate, GLUCOSE,
amino acids, fat
Body fuel continuation of activity - Answer - FATTY ACIDS, glucose, amino acids
How does the body get energy from carbs, proteins, and fats - Answer - If plenty of oxygen is
available to cells>> aerobic energy system, more fat is burned
- If there is a sudden increase in activity or if intensity is high enough >> anaerobic energy
system, more carbs burned
- There's a limit to how quickly oxygen can be used, so we can produce some energy without it
