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23 Sep 2024, 20:09
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Most individuals maintain a relatively stable weight over their lifetime without constant attention to caloric intake and expenditure. Weight maintenance depends on balancing energy intake (eating and drinking) with energy output, which includes both non-exercise thermogenesis and exercise. For weight loss, exercise is often recommended as a key component of any program. While physical activity and exercise are sometimes used interchangeably, physical activity refers to all movement that expends energy, whereas exercise is planned, structured physical activity.
Research highlights the benefits of exercise, particularly for cardiovascular health, insulin sensitivity, glycemic control in type 2 diabetes, blood pressure management, and reducing depression. However, the question remains: does exercise alone significantly contribute to weight loss and long-term weight maintenance?
A systematic review of studies with at least a one-year follow-up suggested that participants who relied solely on exercise for weight loss experienced only minimal results. The amount of weight loss expected from calculated energy expenditure often differs from actual weight loss observed in studies. Possible reasons include physiological compensation, such as reduced non-exercise activity, and the difficulty of maintaining consistent food intake over time, which may lead to compensatory eating.
It is important to recognize the challenge of monitoring dietary intake and exercise intensity and duration over the long term. Overreporting of actual exercise and underreporting of food intake by individuals could be a contributing factor to the mixed results found to date.
The passage mentions reduced non-exercise activity. Which of the following best explains the function of this detail in the passage?
A. To illustrate why calculating energy expenditure from exercise alone may be insufficient for predicting weight loss.
B. To support the idea that compensatory eating is the primary cause of minimal weight loss.
C. To demonstrate that non-exercise thermogenesis is more crucial than exercise for weight loss.
D. To emphasize the psychological difficulty of maintaining a consistent diet over time.
E. To provide an example of how physical activity influences glycemic control in type 2 diabetes.
Research highlights the benefits of exercise, particularly for cardiovascular health, insulin sensitivity, glycemic control in type 2 diabetes, blood pressure management, and reducing depression. However, the question remains: does exercise alone significantly contribute to weight loss and long-term weight maintenance?
A systematic review of studies with at least a one-year follow-up suggested that participants who relied solely on exercise for weight loss experienced only minimal results. The amount of weight loss expected from calculated energy expenditure often differs from actual weight loss observed in studies. Possible reasons include physiological compensation, such as reduced non-exercise activity, and the difficulty of maintaining consistent food intake over time, which may lead to compensatory eating.
It is important to recognize the challenge of monitoring dietary intake and exercise intensity and duration over the long term. Overreporting of actual exercise and underreporting of food intake by individuals could be a contributing factor to the mixed results found to date.
The passage mentions reduced non-exercise activity. Which of the following best explains the function of this detail in the passage?
A. To illustrate why calculating energy expenditure from exercise alone may be insufficient for predicting weight loss.
B. To support the idea that compensatory eating is the primary cause of minimal weight loss.
C. To demonstrate that non-exercise thermogenesis is more crucial than exercise for weight loss.
D. To emphasize the psychological difficulty of maintaining a consistent diet over time.
E. To provide an example of how physical activity influences glycemic control in type 2 diabetes.
23 Sep 2024, 20:09
Kudos
Bookmarks
Official Solution:
Most individuals maintain a relatively stable weight over their lifetime without constant attention to caloric intake and expenditure. Weight maintenance depends on balancing energy intake (eating and drinking) with energy output, which includes both non-exercise thermogenesis and exercise. For weight loss, exercise is often recommended as a key component of any program. While physical activity and exercise are sometimes used interchangeably, physical activity refers to all movement that expends energy, whereas exercise is planned, structured physical activity.
Research highlights the benefits of exercise, particularly for cardiovascular health, insulin sensitivity, glycemic control in type 2 diabetes, blood pressure management, and reducing depression. However, the question remains: does exercise alone significantly contribute to weight loss and long-term weight maintenance?
A systematic review of studies with at least a one-year follow-up suggested that participants who relied solely on exercise for weight loss experienced only minimal results. The amount of weight loss expected from calculated energy expenditure often differs from actual weight loss observed in studies. Possible reasons include physiological compensation, such as reduced non-exercise activity, and the difficulty of maintaining consistent food intake over time, which may lead to compensatory eating.
It is important to recognize the challenge of monitoring dietary intake and exercise intensity and duration over the long term. Overreporting of actual exercise and underreporting of food intake by individuals could be a contributing factor to the mixed results found to date.
The passage mentions reduced non-exercise activity. Which of the following best explains the function of this detail in the passage?
A. To illustrate why calculating energy expenditure from exercise alone may be insufficient for predicting weight loss.
B. To support the idea that compensatory eating is the primary cause of minimal weight loss.
C. To demonstrate that non-exercise thermogenesis is more crucial than exercise for weight loss.
D. To emphasize the psychological difficulty of maintaining a consistent diet over time.
E. To provide an example of how physical activity influences glycemic control in type 2 diabetes.
A. Correct Answer. The detail explains why energy expenditure from exercise may not result in expected weight loss, as people may become less active outside of exercise, reducing overall calorie burn.
B. Incorrect. "Reduced non-exercise activity" relates to physical movement, not eating habits, so it doesn’t support the idea that compensatory eating is the main issue.
C. Incorrect. The passage doesn’t claim that non-exercise thermogenesis is more important than exercise, only that reduced activity can offset the benefits of exercise.
D. Incorrect. This detail concerns physical activity, not psychological challenges with maintaining a diet.
E. Incorrect. The mention of "reduced non-exercise activity" has nothing to do with glycemic control or diabetes; it's about energy expenditure and weight loss.
Answer: A
Most individuals maintain a relatively stable weight over their lifetime without constant attention to caloric intake and expenditure. Weight maintenance depends on balancing energy intake (eating and drinking) with energy output, which includes both non-exercise thermogenesis and exercise. For weight loss, exercise is often recommended as a key component of any program. While physical activity and exercise are sometimes used interchangeably, physical activity refers to all movement that expends energy, whereas exercise is planned, structured physical activity.
Research highlights the benefits of exercise, particularly for cardiovascular health, insulin sensitivity, glycemic control in type 2 diabetes, blood pressure management, and reducing depression. However, the question remains: does exercise alone significantly contribute to weight loss and long-term weight maintenance?
A systematic review of studies with at least a one-year follow-up suggested that participants who relied solely on exercise for weight loss experienced only minimal results. The amount of weight loss expected from calculated energy expenditure often differs from actual weight loss observed in studies. Possible reasons include physiological compensation, such as reduced non-exercise activity, and the difficulty of maintaining consistent food intake over time, which may lead to compensatory eating.
It is important to recognize the challenge of monitoring dietary intake and exercise intensity and duration over the long term. Overreporting of actual exercise and underreporting of food intake by individuals could be a contributing factor to the mixed results found to date.
The passage mentions reduced non-exercise activity. Which of the following best explains the function of this detail in the passage?
A. To illustrate why calculating energy expenditure from exercise alone may be insufficient for predicting weight loss.
B. To support the idea that compensatory eating is the primary cause of minimal weight loss.
C. To demonstrate that non-exercise thermogenesis is more crucial than exercise for weight loss.
D. To emphasize the psychological difficulty of maintaining a consistent diet over time.
E. To provide an example of how physical activity influences glycemic control in type 2 diabetes.
A. Correct Answer. The detail explains why energy expenditure from exercise may not result in expected weight loss, as people may become less active outside of exercise, reducing overall calorie burn.
B. Incorrect. "Reduced non-exercise activity" relates to physical movement, not eating habits, so it doesn’t support the idea that compensatory eating is the main issue.
C. Incorrect. The passage doesn’t claim that non-exercise thermogenesis is more important than exercise, only that reduced activity can offset the benefits of exercise.
D. Incorrect. This detail concerns physical activity, not psychological challenges with maintaining a diet.
E. Incorrect. The mention of "reduced non-exercise activity" has nothing to do with glycemic control or diabetes; it's about energy expenditure and weight loss.
Answer: A
