Weight Loss Weight Loss Exercise 2 — Questions and Answers
Question 1: Which heart rate zone is most associated with fat oxidation as the primary fuel source during exercise?
- Maximum effort zone (90–100% HRmax)
- Fat-burning zone (60–70% HRmax) (Correct answer)
- Anaerobic threshold (80–90% HRmax)
- Warm-up zone (50–60% HRmax)
Correct answer: Fat-burning zone (60–70% HRmax)
At 60–70% of maximum heart rate, the body relies more heavily on fat as a fuel source, though total calorie burn is lower than at higher intensities.
Question 2: How many days per week of strength training does the CDC recommend for adults seeking health and weight management benefits?
- 1 day
- 2 or more days (Correct answer)
- 5 days
- 7 days
Correct answer: 2 or more days
The CDC recommends muscle-strengthening activities on 2 or more days per week as part of a balanced fitness program for adults.
Question 3: What is the primary reason walking is often recommended as a starting exercise for overweight individuals in the US?
- It burns the most calories of any activity
- It is low-impact, accessible, and sustainable long-term (Correct answer)
- It builds the most muscle mass
- It requires expensive equipment
Correct answer: It is low-impact, accessible, and sustainable long-term
Walking is low-impact (protecting joints), free, requires no equipment, and is easy to sustain long-term, making it ideal for those beginning a weight loss journey.
Question 4: Which principle describes increasing exercise intensity, duration, or frequency over time to continue making fitness and weight loss progress?
- Reversibility
- Specificity
- Progressive overload (Correct answer)
- Detraining
Correct answer: Progressive overload
Progressive overload means gradually increasing the challenge of exercise to prevent plateaus and continue stimulating adaptations that support weight loss.
Question 5: What does research suggest about the combination of diet AND exercise compared to diet alone for long-term weight loss maintenance?
- Diet alone is more effective than combining both
- Exercise alone produces the most weight loss
- The combination is superior for maintaining weight loss long-term (Correct answer)
- Both approaches yield identical long-term results
Correct answer: The combination is superior for maintaining weight loss long-term
Multiple studies show that combining caloric restriction with regular exercise produces better long-term weight maintenance than dieting alone.
Question 6: Which exercise modality involves body weight and resistance machines to specifically counteract muscle loss during a caloric deficit?
- Yoga only
- Resistance training (Correct answer)
- Steady-state cycling
- Aquatic aerobics
Correct answer: Resistance training
Resistance training using body weight, free weights, or machines stimulates muscle protein synthesis, which preserves lean mass during caloric restriction.
Weight Loss Weight Loss Exercise 2
Which heart rate zone is most associated with fat oxidation as the primary fuel source during exercise?