Gestational Diabetes Mellitus: Comparison
Please note this is a comparison between Version 3 by Nicole Yin and Version 2 by José Alberto Laredo-Aguilera.

The American Diabetes Association (ADA) defines gestational diabetes mellitus (GDM) as diabetes

diagnosed in the second or third trimester of pregnancy that was not clearly overt diabetes prior to

gestation [5][5].

  • active pregnancy
  • exercise
  • gestational diabetes mellitus
  • nursing
  • physical activity
  • pregnant

1. Introducción

GDM can reach up to 14% of the population worldwide [6][1]. Insulin may or may not be

necessary in this case, regardless of the degree of metabolic disorder. In addition, this pathology can

persist once the pregnancy has ended [7][2].

2. GManagemesntión

Pregnancy causes major biochemical changes that cause a decrease in insulin sensitivity, o set by

an increase in insulin production. Good control of a woman with GDM through diet and exercise can

avoid the use of insulin, requiring only 20–30% insulin [8][3]. According to this statement, the consensus

of the Spanish Group on Diabetes and Pregnancy defines that GDM should be treated with dietary

measures and physical exercise first. However, this does not mean that pharmacological treatment,

such as insulin, is not necessary when adequate metabolic control is not achieved with the above

indications [9,10][4][5]. Nurses and midwives, among other professionals, are in charge of monitoring a

pregnancy and carrying out the diagnostic tests for GDM—indications for physical activity—and are

in the closest contact with pregnant women [11][6].

It is important to treat this complication of pregnancy because patients with GDM are at an

increased risk of developing type II diabetes after pregnancy [7][2]. There is also the possibility that

the child will su ffer complications as macrosomia, impaired intrauterine growth, obstetric trauma,

hyperbilirubinemia, hypoglycemia, intection, and a length of stay in the intensive care unit[7]. [12].

A combination of diet and exercise reduces excessive weight gain during pregnancy and GDM because

weight gain is directly related to GDM development [13,14][8][9]. In addition, obese women tend to have an

unbalanced glucose tolerance and higher insulin resistance during pregnancy than those with a healthy

weight [7][2]. Thus, pregnant women who are overweight or obese have between 2.14 and 3.56 times

more risk of GDM than those with a healthy weight.

There has always been a controversy about exercising during pregnancy [16][10]. For this reason,

around 80% of pregnant women are physically inactive, increasing this inactivity during the last

trimester of pregnancy [17][11]. However, today it is known that there are many benefits that exercise

o ffers to both the fetus and the mother. Among the maternal benefits are a general decrease in cramps,

lower back pain, oedema, depression, urinary incontinence, the duration of labour, and constipation as

well as the number of caesarean sections of the mother [18][12]. Physical activity has benefits for the fetus:

decreased fat mass, improved stress tolerance, and advanced neurobehavioral maturation, among

others [19][13]. In addition, physical activity reduces the rate of GDM to those who perform it between

three to twelve months regularly before or during the gestation period [20][14].

Physical exercise can be carried out safely by pregnant women preventing excessive weight

gain, macrosomia, high blood pressure, GDM, respiratory distress syndrome, neonatal hypoglycemia,

and hypocalcemia [21–24][15][16][17][18]. The benefits of physical activity requires physical activity for 30 min at a

moderate intensity for five days, or 150 min of aerobic activity every week on average, depending on

the women’s physical activity level or fitness status before pregnancy [25][19]. It should not be noted that

both the intensity and the type of activity depend on each person and should always be recommended

individually [26][20].

Aerobic, resistance exercise, or a combination of both are e ffective in controlling glucose, HbcA1,

and insulin. Due to the variability of the exercises of the analyzed studies and the variability of

the shape of the di fferent pregnant women, it does not allow recommending a particular type of

exercise. However, any type of physical activity of suffcient intensity and duration can have benefits

for pregnant women with DMG.

Pregnant women with GDM should exercise at least 20–50 min a minimum of two times a week.

The intensity of the activity should be at least moderate.

While exercise provides the greatest benefit according to the analyzed studies, diet is also important

to control glucose values, HbcA1, and the required amount of insulin.


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