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23 Sep 2024, 20:02
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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.
Which of the following best describes the primary purpose of the passage?
A. To argue that exercise is not an effective long-term strategy for weight loss.
B. To highlight the difficulties of measuring the effects of exercise and diet on weight management.
C. To demonstrate that exercise has several health benefits despite its limitations for weight loss.
D. To present research that dismisses the role of physical activity in maintaining a healthy weight.
E. To evaluate whether exercise plays a significant role in weight loss and weight maintenance.
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.
Which of the following best describes the primary purpose of the passage?
A. To argue that exercise is not an effective long-term strategy for weight loss.
B. To highlight the difficulties of measuring the effects of exercise and diet on weight management.
C. To demonstrate that exercise has several health benefits despite its limitations for weight loss.
D. To present research that dismisses the role of physical activity in maintaining a healthy weight.
E. To evaluate whether exercise plays a significant role in weight loss and weight maintenance.
23 Sep 2024, 20:02
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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.
Which of the following best describes the primary purpose of the passage?
A. To argue that exercise is not an effective long-term strategy for weight loss.
B. To highlight the difficulties of measuring the effects of exercise and diet on weight management.
C. To demonstrate that exercise has several health benefits despite its limitations for weight loss.
D. To present research that dismisses the role of physical activity in maintaining a healthy weight.
E. To evaluate whether exercise plays a significant role in weight loss and weight maintenance.
A. Incorrect. While the passage does question the effectiveness of exercise as a long-term weight-loss strategy, it does not argue against exercise outright. The passage remains more neutral, focusing on research findings rather than taking a strong stance against exercise as ineffective.
B. Incorrect. The passage does mention challenges in measuring exercise and diet, but this is only one part of the broader discussion. The primary focus is on evaluating exercise's role in weight loss and maintenance, not just on measurement difficulties.
C. Incorrect. This option focuses too narrowly on the health benefits of exercise, which, while discussed, are not the main point. The passage centers on evaluating exercise's impact on weight loss and maintenance, rather than promoting its general health benefits.
D. Incorrect. The passage does not dismiss physical activity’s role in maintaining a healthy weight. It acknowledges that exercise alone may not be enough for weight loss but still recognizes its potential benefits, particularly for health management.
E. Correct Answer. This option accurately captures the primary purpose of the passage, which is to evaluate whether exercise significantly contributes to weight loss and long-term weight maintenance, based on the evidence and research presented. The passage considers both sides of the issue, making this the most comprehensive answer.
Answer: E
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.
Which of the following best describes the primary purpose of the passage?
A. To argue that exercise is not an effective long-term strategy for weight loss.
B. To highlight the difficulties of measuring the effects of exercise and diet on weight management.
C. To demonstrate that exercise has several health benefits despite its limitations for weight loss.
D. To present research that dismisses the role of physical activity in maintaining a healthy weight.
E. To evaluate whether exercise plays a significant role in weight loss and weight maintenance.
A. Incorrect. While the passage does question the effectiveness of exercise as a long-term weight-loss strategy, it does not argue against exercise outright. The passage remains more neutral, focusing on research findings rather than taking a strong stance against exercise as ineffective.
B. Incorrect. The passage does mention challenges in measuring exercise and diet, but this is only one part of the broader discussion. The primary focus is on evaluating exercise's role in weight loss and maintenance, not just on measurement difficulties.
C. Incorrect. This option focuses too narrowly on the health benefits of exercise, which, while discussed, are not the main point. The passage centers on evaluating exercise's impact on weight loss and maintenance, rather than promoting its general health benefits.
D. Incorrect. The passage does not dismiss physical activity’s role in maintaining a healthy weight. It acknowledges that exercise alone may not be enough for weight loss but still recognizes its potential benefits, particularly for health management.
E. Correct Answer. This option accurately captures the primary purpose of the passage, which is to evaluate whether exercise significantly contributes to weight loss and long-term weight maintenance, based on the evidence and research presented. The passage considers both sides of the issue, making this the most comprehensive answer.
Answer: E
columb2025
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10 Nov 2024, 10:50
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"However, the question remains: does exercise alone significantly contribute to weight loss and long-term weight maintenance?"
while this sentence in the passage would suggest option E, but I eliminated E based on the fact that the passage has already establsihed that excercise is a significant contributor, the primary purpose of the passage seems to evaluate whether excercise 'alone' works or there are other contributors to weight loss etc.
I felt a close second option would be option B due to this line from the passage
"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."
could you help me clarify this ? bb
Thank You!
while this sentence in the passage would suggest option E, but I eliminated E based on the fact that the passage has already establsihed that excercise is a significant contributor, the primary purpose of the passage seems to evaluate whether excercise 'alone' works or there are other contributors to weight loss etc.
I felt a close second option would be option B due to this line from the passage
"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."
could you help me clarify this ? bb
Thank You!
