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23 Sep 2024, 20:16
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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.
What can be reasonably inferred about the long-term success of exercise-only weight loss programs?
A. Individuals who participate in these programs often report accurate measures of physical activity and caloric intake, leading to consistent weight loss results.
B. These weight loss programs are sustainable as they capitalize on physiological adjustments such as increased non-exercise activity.
C. They may require supplementation with changes in diet to achieve significant weight loss.
D. Most participants in these programs achieve their desired weight loss goals within the first year of participation.
E. The reliance on exercise-only strategies generally leads to increased non-exercise activity, effectively boosting overall energy expenditure.
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.
What can be reasonably inferred about the long-term success of exercise-only weight loss programs?
A. Individuals who participate in these programs often report accurate measures of physical activity and caloric intake, leading to consistent weight loss results.
B. These weight loss programs are sustainable as they capitalize on physiological adjustments such as increased non-exercise activity.
C. They may require supplementation with changes in diet to achieve significant weight loss.
D. Most participants in these programs achieve their desired weight loss goals within the first year of participation.
E. The reliance on exercise-only strategies generally leads to increased non-exercise activity, effectively boosting overall energy expenditure.
23 Sep 2024, 20:16
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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.
What can be reasonably inferred about the long-term success of exercise-only weight loss programs?
A. Individuals who participate in these programs often report accurate measures of physical activity and caloric intake, leading to consistent weight loss results.
B. These weight loss programs are sustainable as they capitalize on physiological adjustments such as increased non-exercise activity.
C. They may require supplementation with changes in diet to achieve significant weight loss.
D. Most participants in these programs achieve their desired weight loss goals within the first year of participation.
E. The reliance on exercise-only strategies generally leads to increased non-exercise activity, effectively boosting overall energy expenditure.
Incorrect Answer (A): This choice is incorrect because the passage explicitly states that overreporting of exercise and underreporting of food intake are common, which contradicts the claim of accurate reporting leading to consistent results.
Incorrect Answer (B): Contrary to the implications of this choice, the passage suggests that physiological compensations, like reduced non-exercise activity, might actually undermine the effectiveness of exercise-only programs, rather than sustain them.
Correct Answer (C): This inference is supported by the passage’s discussion of the minimal results obtained from exercise-only weight loss programs and the challenges associated with accurately monitoring diet and exercise. It implies that exercise alone, without dietary changes, might not be sufficient for significant or sustained weight loss, similar to the research findings mentioned.
Incorrect Answer (D): This choice is incorrect as it contradicts the passage’s indication that exercise-only programs lead to only minimal results, suggesting that achieving desired weight loss goals within the first year is unlikely.
Incorrect Answer (E): This option is misleading because, according to the passage, increased exercise could lead to reduced non-exercise activity due to physiological compensation, not an increase, making this inference unsupported.
Answer: C
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.
What can be reasonably inferred about the long-term success of exercise-only weight loss programs?
A. Individuals who participate in these programs often report accurate measures of physical activity and caloric intake, leading to consistent weight loss results.
B. These weight loss programs are sustainable as they capitalize on physiological adjustments such as increased non-exercise activity.
C. They may require supplementation with changes in diet to achieve significant weight loss.
D. Most participants in these programs achieve their desired weight loss goals within the first year of participation.
E. The reliance on exercise-only strategies generally leads to increased non-exercise activity, effectively boosting overall energy expenditure.
Incorrect Answer (A): This choice is incorrect because the passage explicitly states that overreporting of exercise and underreporting of food intake are common, which contradicts the claim of accurate reporting leading to consistent results.
Incorrect Answer (B): Contrary to the implications of this choice, the passage suggests that physiological compensations, like reduced non-exercise activity, might actually undermine the effectiveness of exercise-only programs, rather than sustain them.
Correct Answer (C): This inference is supported by the passage’s discussion of the minimal results obtained from exercise-only weight loss programs and the challenges associated with accurately monitoring diet and exercise. It implies that exercise alone, without dietary changes, might not be sufficient for significant or sustained weight loss, similar to the research findings mentioned.
Incorrect Answer (D): This choice is incorrect as it contradicts the passage’s indication that exercise-only programs lead to only minimal results, suggesting that achieving desired weight loss goals within the first year is unlikely.
Incorrect Answer (E): This option is misleading because, according to the passage, increased exercise could lead to reduced non-exercise activity due to physiological compensation, not an increase, making this inference unsupported.
Answer: C
24 Nov 2024, 04:39
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I think this question's answer choice can be improved by changing 'phyiscal activity' to 'exercise' in the answer choice - Individuals tend to report more exercise than they actually perform.
This is because the passage has attributed different meanings to each of the words and the last paragraph states that people over report "exercise" and not "physical activity" specifically
This is because the passage has attributed different meanings to each of the words and the last paragraph states that people over report "exercise" and not "physical activity" specifically
