Physical Activity Patterns at Six Weeks Postpartum among Sri Lankan Mothers with a History of Gestational Diabetes Mellitus (GDM)

Abstract

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OBJECTIVES: Gestational diabetes mellitus (GDM) is a world health concern. Women with a history of GDM have a high prevalence of developing type two diabetes mellitus, recurrence of GDM, and impaired glucose intolerance in their future life. Physical activity (PA) is a key component to attenuate the development of these complications. Therefore, the aim of this study was to evaluate the PA patterns of GDM women at 6 weeks postpartum.

MATERIAL AND METHODS: This descriptive cross-sectional component of a large quasi-experimental study was conducted in three selected districts of Sri Lanka in 100 postpartum mothers. Anthropometric and glycemic parameters were assessed at 6 weeks postpartum. Pre-tested International PA Questionnaire (short-version) was used to assess PA. The PA level and intensity were calculated in metabolic equivalent task minutes per week (METminutes/week). Data were analyzed by SPSS 21 version. Both continuous and categorical data were analyzed. Ethical clearance was obtained from the University of Sri Jayewardenepura.

RESULTS: Mean HbA1c value was 6.64 ± 1.95. Median truncated PA was 3250 MET-minutes/week. The main contributors to energy expenditure in the study sample were moderate intensity household activities and walking with 58% of mothers walking more than 150 min/week. Although in the categorical analysis, 52% of mothers reported high level of PA, only 10% participated in at least one vigorous intensity activity continuously for more than 10 min to achieve reduced metabolic risks. Average sitting time of mothers was about 3 h/day which is in par with the breast-feeding recommendation. None of the PA MET values significantly correlated with the glycemic parameter, HbA1c.

CONCLUSION: Although it appears that majority of mothers are physically active, these activities are not optimum in terms of reducing the metabolic risk. We suggest designing exercise protocols incorporating day-to-day moderate intensity activities and walking in a structured and scientific manner to achieve maximum benefits for this special group of women.