How does regular endurance exercise contribute to better control of body fat?

Question

BlackTom AI · Accepted Answer

Regular endurance exercise increases daily calorie expenditure because sustained aerobic activity raises the amount of energy the body uses both during the session and, to a lesser extent, afterward.

1) Relevant concepts:
- Total Daily Energy Expenditure (TDEE) = basal metabolic rate + thermic effect of food + activity energy expenditure. Endurance exercise raises the activity component of TDEE.
- Energy balance principle: body fat changes when energy intake differs from energy expenditure.
- Exercise also improves substrate use (greater fat oxidation) and insulin sensitivity, aiding fat control.

2) Step-by-step reasoning:
- During a bout of endurance exercise (e.g., jogging, cycling, swimming), working muscles require ATP, so the body increases caloric burn to supply that ATP.
- Repeated sessions add up: more calories burned across days/weeks increases total energy expenditure.
- If caloric intake remains constant, the increased expenditure creates a negative energy balance, forcing the body to mobilize stored fat for energy.
- Improved metabolic adaptations (higher mitochondrial density, enhanced fat oxidation) support greater reliance on fat during and after exercise.

3) Calculation example (intermediate steps shown):
- Suppose one 30-minute moderate run burns ~300 kcal.
- Doing that 5 times/week: 300 kcal × 5 = 1,500 kcal/week extra expenditure.
- One pound of fat ≈ 3,500 kcal, so 1,500/3,500 ≈ 0.43 lb fat loss per week from exercise alone, all else equal.

4) Why the correct answer is correct:
- “It increases daily calorie expenditure” directly describes the mechanism by which endurance training helps control body fat: increasing TDEE and creating an energy deficit.

5) Why other options are incorrect:
- “It decreases calorie requirements” contradicts reality (exercise increases, not decreases, energy needs).
- “It decreases daily energy expenditure” is opposite of the true effect.
- “It increases calorie intake” may sometimes occur (increased appetite), but that is not how endurance exercise controls body fat and would counteract fat loss.

Conclusion: The correct answer is “It increases daily calorie expenditure.” This matches the provided answer.

How does regular endurance exercise contribute to better control of body fat?单项选择题

类似问题

Wearable devices can be useful for tracking steps, heart rate, and sleep quality, but they often have significant errors in estimating calories burned.

How much energy is exchanged (i.e. what is the rate of energy expenditure) when consuming oxygen at a rate of 1.5 L/min?

Of the three components that make up our total energy requirement, the component with the potential for highest variability from day-to-day for the same individual is ________________________.

Question at position 22 Which of the following is an example of non-exercise activity thermogenesis? Maintenance of body temperatureHeat production following exerciseAbsorption of nutrientsNone of the above

Match the energy balance term with its definition. 1: Calories to digest/store nutrients consumed 2: Calories burned through exercise 3: Calories for basic life-sustaining function 4: Calories for physical movement such as fidgeting, posture, standing, etc

The aspect of total daily energy expenditure that we have the most control over is the thermic effect of food.

The amount of energy (or calories) the body burns each day is influenced by basal metabolism, physical activity, _______________, and thermogenesis.

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单