Home-Based Exercise Training Improves Capillary Glucose Profile in Women with Gestational Diabetes

PURPOSERegular maternal exercise may play an important role in the management of gestational diabetes mellitus (GDM), yet specific exercise guidelines to achieve glycemic control have not been established. Furthermore, many women remain sedentary during pregnancy because of perceived barriers to exe...

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Bibliographic Details
Published in:Medicine and science in sports and exercise 2014-09, Vol.46 (9), p.1702-1709
Main Authors: HALSE, RHIANNON E, WALLMAN, KAREN E, NEWNHAM, JOHN P, GUELFI, KYM J
Format: Article
Language:English
Subjects:
Adult
Bicycling - physiology
Biological and medical sciences
Blood Glucose - metabolism
Capillaries
Diabetes, Gestational - blood
Diabetes, Gestational - therapy
Diet
Exercise Therapy - methods
Fasting - blood
Female
Fundamental and applied biological sciences. Psychology
Glucose Tolerance Test
Glycated Hemoglobin A - metabolism
Human physiology applied to population studies and life conditions. Human ecophysiology
Humans
Insulin - blood
Medical sciences
Patient Compliance
Postprandial Period
Pregnancy
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Summary:PURPOSERegular maternal exercise may play an important role in the management of gestational diabetes mellitus (GDM), yet specific exercise guidelines to achieve glycemic control have not been established. Furthermore, many women remain sedentary during pregnancy because of perceived barriers to exercise participation. This study examined the effectiveness of a home-based cycling program commenced upon diagnosis of GDM on daily fasting and postprandial blood glucose levels, glycosylated hemoglobin (HbA1c), and the response of glucose and insulin to a 75-g oral glucose load. METHODSForty sedentary women (28.8 ± 0.9 wk of gestation) were randomized to either home-based exercise training in combination with conventional management (EX, n = 20) or to conventional management alone (CON, n = 20) until week 34 of pregnancy. RESULTSMean compliance to the supervised exercise training was 96%, and no adverse effects were reported. Capillary glucose concentration was acutely reduced in response to each cycling session (6.3 ± 0.8 mM to 4.9 ± 0.7 mM, P < 0.001). Overall, the EX group had lower mean daily postprandial glucose concentrations throughout the intervention compared with that in the CON group (P < 0.05) despite consuming a greater proportion of dietary carbohydrate (P < 0.05). No differences were observed between groups with respect to HbA1c or the glucose and insulin response to oral glucose ingestion postintervention (P > 0.05). CONCLUSIONSA home-based cycling program may help to maintain daily postprandial normoglycemia in women with diet-controlled GDM.
ISSN:0195-9131
1530-0315
DOI:10.1249/MSS.0000000000000302