Food and non-food reinforcement among pregnant women.
Appetite
; 131: 155-159, 2018 12 01.
Article
em En
| MEDLINE
| ID: mdl-30217581
ABSTRACT
Excessive gestational weight gain (GWG) in pregnancy may be driven in part by greater motivation to eat, and studying the relative reinforcing value of food versus non-food commodities may provide insight into factors important for excessive GWG. This study was a cross-sectional examination of the relationship between women meeting the Institute of Medicine (IOM) guidelines for GWG and the relative reinforcing value of food vs. non-food commodities during pregnancy. Two-hundred and thirty-three pregnant women (1st trimester, nâ¯=â¯44; 2nd trimester, nâ¯=â¯105; 3rd trimester, nâ¯=â¯84), aged 18-40, were recruited via a crowdsourcing platform and completed an online survey. Relative food reinforcement (RRVfood), relative non-food activity reinforcement (RRVactive) and relative non-food cognitively enriching activity reinforcement (RRVcognitive) were measured by a questionnaire at the point of contact. Self-reports of gestational age and weight gain during pregnancy were collected. The relationship between food and non-food reinforcement was assessed based on IOM classifications for weight gain during pregnancy. After adjustment for women's education level and parity, higher RRVfood (pâ¯=â¯0.036) and lower RRVcognitive (pâ¯=â¯0.040) responses were associated with greater GWG. Food reinforcing ratio (FRR) analysis was then conducted to systematically examine the effect of non-food behaviors on GWG when food reinforcement was accounted for. Women who gained below the IOM weight gain guidelines had significantly higher FRRcognitive than those gaining above (pâ¯=â¯0.013), indicating cognitively enriching activities may better compete with food among pregnant women. Interventions that help to increase the reinforcing value of cognitively enriching activities may be a new avenue to regulate eating to minimize GWG.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
3_ND
Base de dados:
MEDLINE
Assunto principal:
Reforço Psicológico
/
Alimentos
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Ganho de Peso na Gestação
Tipo de estudo:
Observational_studies
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Prevalence_studies
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Qualitative_research
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Female
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Humans
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Pregnancy
Idioma:
En
Revista:
Appetite
Ano de publicação:
2018
Tipo de documento:
Article