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Changing from the inside out? Examining relationships between overweight identification, dieting behaviours, and body measurements over time.

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Title: Changing from the inside out? Examining relationships between overweight identification, dieting behaviours, and body measurements over time.
Authors: Jones, Janelle M. (AUTHOR), Schönherr, Deva M. (AUTHOR), Zaitsoff, Shannon (AUTHOR), Pullmer, Rachelle (AUTHOR)
Source: British Journal of Health Psychology. May2019, Vol. 24 Issue 2, p460-476. 17p. 3 Charts.
Subjects: Time measurements, Body composition, Psychological factors, Weight loss, Waist circumference, Emotional eating
Abstract: Objective: To investigate whether changes in overweight identification were associated with dieting behaviours and body measurements over time.Design: Longitudinal study with assessments at three time points: before and twice during (i.e., baseline, 6 months, 12 months) a 1-year self-directed weight loss attempt.Method: Eighty individuals with overweight or obesity (classified by BMI ≥ 25) reported their personal (i.e., I see myself as overweight), social (i.e., I identify/feel strong ties with other overweight people), and affective (i.e., I am pleased to be overweight) overweight identification; dieting behaviours (e.g., eat less, exercise, eat more fruit and vegetables); and had their body measurements taken (i.e., weight, height, body fat, waist circumference).Results: Linear mixed modelling was used to examine between-person differences and within-person changes in overweight identification on dieting behaviours and body measurements over time. Between-person differences mattered for measurements: Higher personal overweight identification was associated with higher BMI, body fat, and waist circumference over time. Higher social overweight identification was associated with higher BMI over time. Within-person changes mattered for behaviours over time: At 12 months, decreases in social overweight identification were associated with increases in a subset of 'Eat Less, Move More' dieting behaviours, but not a subset of 'Healthy' dieting behaviours. At 12 months, decreases in affective overweight identification were also associated with increases in 'Eat Less, Move More' dieting behaviours.Conclusion: Addressing different aspects of overweight identification and how they change over time, may harness an important psychological pathway to support behavioural change and health irrespective of weight loss. Statement of contribution What is already known on this subject? Psychological factors, such as self-concept clarity and weight stigma, are associated with dieting behaviours and body measurements. Qualitative data suggest that identity change may be tied to dieting behaviours and weight loss. What does this study add? New insights into the nature of another psychological factor, overweight identification, among individuals with overweight and obesity attempting to lose weight. The first quantitative evidence that different aspects of overweight identification, and changes in these aspects of overweight identification over time, influence body measurements and dieting behaviours. [ABSTRACT FROM AUTHOR]
Copyright of British Journal of Health Psychology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Changing from the inside out? Examining relationships between overweight identification, dieting behaviours, and body measurements over time.
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  Data: <searchLink fieldCode="AR" term="%22Jones%2C+Janelle+M%2E%22">Jones, Janelle M.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schönherr%2C+Deva+M%2E%22">Schönherr, Deva M.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zaitsoff%2C+Shannon%22">Zaitsoff, Shannon</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pullmer%2C+Rachelle%22">Pullmer, Rachelle</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22British+Journal+of+Health+Psychology%22">British Journal of Health Psychology</searchLink>. May2019, Vol. 24 Issue 2, p460-476. 17p. 3 Charts.
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  Data: <searchLink fieldCode="DE" term="%22Time+measurements%22">Time measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Body+composition%22">Body composition</searchLink><br /><searchLink fieldCode="DE" term="%22Psychological+factors%22">Psychological factors</searchLink><br /><searchLink fieldCode="DE" term="%22Weight+loss%22">Weight loss</searchLink><br /><searchLink fieldCode="DE" term="%22Waist+circumference%22">Waist circumference</searchLink><br /><searchLink fieldCode="DE" term="%22Emotional+eating%22">Emotional eating</searchLink>
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  Label: Abstract
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  Data: <bold>Objective: </bold>To investigate whether changes in overweight identification were associated with dieting behaviours and body measurements over time.<bold>Design: </bold>Longitudinal study with assessments at three time points: before and twice during (i.e., baseline, 6 months, 12 months) a 1-year self-directed weight loss attempt.<bold>Method: </bold>Eighty individuals with overweight or obesity (classified by BMI ≥ 25) reported their personal (i.e., I see myself as overweight), social (i.e., I identify/feel strong ties with other overweight people), and affective (i.e., I am pleased to be overweight) overweight identification; dieting behaviours (e.g., eat less, exercise, eat more fruit and vegetables); and had their body measurements taken (i.e., weight, height, body fat, waist circumference).<bold>Results: </bold>Linear mixed modelling was used to examine between-person differences and within-person changes in overweight identification on dieting behaviours and body measurements over time. Between-person differences mattered for measurements: Higher personal overweight identification was associated with higher BMI, body fat, and waist circumference over time. Higher social overweight identification was associated with higher BMI over time. Within-person changes mattered for behaviours over time: At 12 months, decreases in social overweight identification were associated with increases in a subset of 'Eat Less, Move More' dieting behaviours, but not a subset of 'Healthy' dieting behaviours. At 12 months, decreases in affective overweight identification were also associated with increases in 'Eat Less, Move More' dieting behaviours.<bold>Conclusion: </bold>Addressing different aspects of overweight identification and how they change over time, may harness an important psychological pathway to support behavioural change and health irrespective of weight loss. Statement of contribution What is already known on this subject? Psychological factors, such as self-concept clarity and weight stigma, are associated with dieting behaviours and body measurements. Qualitative data suggest that identity change may be tied to dieting behaviours and weight loss. What does this study add? New insights into the nature of another psychological factor, overweight identification, among individuals with overweight and obesity attempting to lose weight. The first quantitative evidence that different aspects of overweight identification, and changes in these aspects of overweight identification over time, influence body measurements and dieting behaviours. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of British Journal of Health Psychology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/bjhp.12363
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        Text: English
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      – SubjectFull: Body composition
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      – SubjectFull: Psychological factors
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      – SubjectFull: Weight loss
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      – SubjectFull: Waist circumference
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      – SubjectFull: Emotional eating
        Type: general
    Titles:
      – TitleFull: Changing from the inside out? Examining relationships between overweight identification, dieting behaviours, and body measurements over time.
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              Text: May2019
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