Physical load and psychological demand at work during pregnancy and preterm birth

Abstract

High physical exertion increases the risk of preterm birth in Spain. The magnitude of the effect of physical workload on moderate and very preterm birth is similar, but is higher on indicated preterm birth than on spontaneous preterm birth. Psychological demands show no effect on the risk of preterm birth.

Job control, substantive complexity, and risk for low birth weight and preterm delivery: An analysis from a state birth registry

“…Indices of job strain (operationalized in several different ways as the combination of high work demands with low control over the conditions of work, constructs derived from the Job Content Questionnaire (JCQ) [Schwartz et al, 1988;Karasek et al, 1998]) have demonstrated a variable relationship to poor pregnancy outcomes, with conflicting study results. A lack of association between job strain measures and adverse pregnancy outcomes has been noted in several studies [Homer et al, 1990;Ceron-Mireles et al, 1996;Escriba-Aguir et al, 2001]. By contrast, a case-control study of work stress and preterm delivery indicated that work at a full-time high-strain job, past the 30th week of gestation, was associated with a modestly increased risk of preterm delivery [Brett et al, 1997].…”

Exposure to pesticides and heavy work in greenhouses during pregnancy: does it effect birth weight?

“…Maternal work during pregnancy, especially with high work-related physical exertion, is still considered one of the most prevalent risk factors of negative pregnancy outcome (Nurminen et al 1989;Homer et al 1990;Koemester et al 1995;Makowiec-Dąbrowska and Siedlecka 1996;Spinillo et al 1996;Hanke et al 1999;Escriba-Aguir et al 2001). Although in Poland from the legal point of view pregnant women may perform only light work (i.e.…”

Influência da atividade física durante a gravidez nos resultados perinatais

“…Campbell e Mottola (2001) (Hatch et al, 1998;Domingues et al, 2008;Juhl et al, 2008 (Nguyen et al, 2004;Saurel Cubizzolles at al., 2004;Escribà-Aguir et al, 2001;Bonzini et al, 2007) e outros, em consonância com os resultados aqui apresentados, indicam que não há associação entre atividade ocupacional e prematuridade (Henrich et al, 2003;Beeckman et al, 2009;Niedhammer et al, 2009 …”

“…No entanto, quando o foco da investigação é atividade física ocupacional, os resultados encontrados na literatura mostram elevação no risco relativo de prematuridade em mulheres que trabalham por longos períodos (>40 horas/semana), que permanecem sentadas durante muito tempo e que carregam peso no trabalho (Nguyen et al, 2004;Saurel-Cubizolles et al, 2004;Escribà-Aguir et al, 2001;Bonzini et al, 2007). Há estudos, porém, que não encontram tal associação (Beeckman et al, 2009;Henrich et al, 2003).…”

“…Ainda, quando o foco de investigação é atividade ocupacional, mulheres com elevada demanda física no trabalho apresentam também um risco aumentado para prematuridade e baixo peso ao nascer (Mozurkewich et al, 2000;Escribà-Aguir et al, 2001;Nguyen et al, 2004;Saurel Cubizzolles et al, 2004;Bonzini et al, 2007;Niedhammer et al, 2009). Por outro lado, alguns estudos mostram efeito protetor do exercício moderado para a prematuridade, pós-datismo e estado nutricional do recém-nascido (Juhl et al, 2008;Juhl et al, 2010;Domingues et al, 2008;Duncombe et al, 2006;Evenson et al, 2002, Leiferman e Evenson, 2003Campbell e Motolla, 2001;Clapp III et al, 2000;Hatch et al, 1998 …”