How are body mass and body attitude impacted by a behaviour change intervention in primary care? A pragmatic randomised controlled trial

Samdal, Gro Beate; Bezuijen, Pieter Siemon; Mongstad, Øyvin Noddeland; Eide, Geir Egil; Abildsnes, Eirik; Mildestvedt, Thomas; Meland, Eivind

doi:10.1177/1403494820939027

Cited by 5 publications

(11 citation statements)

References 31 publications

(45 reference statements)

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“…In a cross-sectional study in three European countries, among somewhat older adolescents, these associations were not supported [23]; whereas adults participating in a lifestyle intervention study in Spain exhibited similar and reciprocal associations [24]. Also, in an intervention study with mostly overweight and obese adults, two of the authors of the present study (EM and GBS) revealed complex and reciprocal relations, similar to those found in the present study [25].…”

Section: Discussionsupporting

confidence: 59%

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How body concerns, body mass, self-rated health and self-esteem are mutually impacted in early adolescence: a longitudinal cohort study

et al. 2021

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Background Impaired self-rated health (SRH) and self-esteem (SE) in adolescents are associated with increased body mass index (BMI). These associations are often studied using cross-sectional designs; we performed a longitudinal cohort survey to examine them. Methods A longitudinal cohort study of 1225 Norwegian high school students, with SRH, SE and BMI as primary outcomes. We reported the results from temporal causal and residual change analyses separately, with odds ratios (ORs) and standardised regression coefficients (b) and 95% confidence limits. Results Body and weight concerns had unfavourable effects on SRH and SE, which both had favourable effects on each other. Increased BMI had unfavourable effects on SRH, but less so on SE. Body and weight concerns impacted SE change only among girls. Paradoxically, the intention of becoming thinner was associated with an increase in BMI, and the intention of becoming fatter predicted a decrease in BMI during the 2 years. SE and SRH were associated with a leaner body after 2 years. Conclusions This study confirms that body concerns had unfavourable effects on subjective health, and that positive self-concepts predicted a leaner body. Health promotion strategies built on body acceptance should be increasingly emphasised in clinical and public health practice.

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Section: Discussionsupporting

confidence: 59%

“…Positive self-concepts, e.g. self-efficacy, improved both BMI and body attitude simultaneously during follow-up [25].…”

Section: What This Study Addsmentioning

confidence: 92%

How body concerns, body mass, self-rated health and self-esteem are mutually impacted in early adolescence: a longitudinal cohort study

et al. 2021

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“…The predictive association that we found between BMI and impaired SRH and SE is not always con rmed in the literature (23), and the relations seem both complex and reciprocal (24). We revealed these complex relations, similar to those found in the present study, in a lifestyle intervention study by two of the authors (EM and GBS) (25).…”

Section: Main Ndingssupporting

confidence: 74%

The Impact of Body Concerns and Body Mass on Subjective Health and Self-Esteem in Early Adolescence. A Longitudinal Cohort Study

Meland¹,

Breidablik²,

Thuen³

et al. 2020

Preprint

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Background Impaired self-rated health (SRH) and self-esteem (SE) in adolescents are associated with increased body mass index (BMI). These associations are often studied using cross-sectional designs. The relations studied in longitudinal designed studies seem complex.Methods A longitudinal cohort study of 1225 Norwegian high school students, with SRH, SE and BMI as primary outcomes. We reported the results from temporal causal and residual change analyses separately, with odds ratios (ORs) and standardized regression coefficients (b) and 95% confidence limits.Results Body and weight concerns had unfavourable effects on SRH and SE, which both had favourable effects on each other. Increased BMI had unfavourable effects on SRH, but less so on SE. Body and weight concerns impacted SE change only among girls. Paradoxically, the intention of becoming thinner was associated with an increase in BMI, and the intention of becoming fatter predicted a decrease in BMI during the two years. SE and SRH were associated with a leaner body after two years.Conclusions This study confirms that BMI, SE, SRH, body shape and body weight concerns were reciprocally associated with complex inter-relations. Health promotion strategies built on body acceptance should be increasingly emphasized both in clinical and in public health practice.

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“…The baseline characteristics of the 118 participants and characteristics of dropouts in the study are reported in greater detail elsewhere (Samdal et al, 2018a;Samdal et al, 2018b;Samdal, 2021). Six months after baseline, 42 participants in the intervention group and 44 in the control group remained in the study (Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…An RCT found no effect on change in PA 6 months after baseline, compared with the control group, but the subgroup least physically active at baseline benefitted significantly from the interventions, as compared with more active participants (Samdal et al, 2018a). The interventions did not affect body mass on average, but promoted weight loss among the leaner participants, compared with those with a higher body mass index (BMI) in the intervention group (Samdal, 2021). This study also revealed that several negative self-concepts, for example body shape concern, impaired weight related self-esteem (SE), and controlled motivation for change predicted an impairment of participants' body attitude after 6 months.…”

Section: Introductionmentioning

confidence: 99%

Healthy and unhealthy eating after a behaviour change intervention in primary care

Samdal

Furset

Nysæther

et al. 2022

Prim Health Care Res Dev

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Background: To prevent and reduce non-communicable diseases, the Norwegian Directorate of Health encourages Healthy Life Centres (HLCs) in all municipalities. Aims: This study investigates whether the behaviour change interventions at HLCs positively affected participants’ diet and to evaluate predictors for healthy and unhealthy eating. Our data are part of the Norwegian Healthy Life Centre Study, a 6-month, pragmatic randomised controlled trial (RCT). Methods: Totally, 118 participants ≥18 years old were randomised to an intervention group (n 57), or a waiting list (control group) (n 61). Eighty-six participants met at the 6 months follow-up visit. We merged the participants to one cohort for predictor analyses, using linear regressions. Findings: The RCT of the HLCs’ interventions had no effect on healthy and unhealthy eating 6 months after baseline compared with controls. A short, additional healthy eating education programme produced a modest, statistically significant improvement in healthy eating compared with controls. This did not, however, reduce unhealthy eating. Higher income predicted unhealthier eating over time. Increasing body mass index and impaired physical functioning also led to an increase in unhealthy eating. Healthy eating at 6 months was predicted by self-rated health (SRH), vitality and life satisfaction, and hampered by musculo-skeletal challenges and impaired self-esteem (SE). SRH impacted improvement in healthy eating during the 6 months. The effect of interventions on healthier eating may be improved by an emphasis on developing positive self-concepts like better SRH, vitality, life satisfaction, and SE.

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How are body mass and body attitude impacted by a behaviour change intervention in primary care? A pragmatic randomised controlled trial

Cited by 5 publications

References 31 publications

How body concerns, body mass, self-rated health and self-esteem are mutually impacted in early adolescence: a longitudinal cohort study

How body concerns, body mass, self-rated health and self-esteem are mutually impacted in early adolescence: a longitudinal cohort study

The Impact of Body Concerns and Body Mass on Subjective Health and Self-Esteem in Early Adolescence. A Longitudinal Cohort Study

Healthy and unhealthy eating after a behaviour change intervention in primary care

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