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Author Sirivarasai, Jintana
TitleCalcium and magnesium status relation to leg cramps in pregnant women/Jintana Sirivarasai, Surat Komindr, Winit Phuapradit
Alternative Titleสถานภาพของแคลเซียมและแมกนีเซียมในหญิงตั้งครรภ์ที่มีปัญหาตะคริวที่ขา
Call# T970083

CALL # Volume Number Month Year Barcode Status

JournalJournal of the Nutrition Association of Thailand (วารสารโภชนาการ)
AbstractThe aim of this study was to determine the source and the amount of calcium (Ca)and magnesium (Mg)intake as well as their concentrations in blood and urine of healthy pregnant women (32 pregnant subjects without cramps and 32 pregnant with cramps)during their thrid trimester. Average calcium and magnesium intake of all pregnant women were 850+-192 and 256+-59 mg/d, respectively, which were lower than Thai RDA. Milk is the main source of calcium and magnesium in this group of people. Although, the cramp group significantly consumed more calcium than the control group (946+-186 vs 777+-187 mg/d, p<0.05, there was no difference in the urinary calcium excretion between both groups. At wk 32 of gestation, serum Ca and ionized Ca between both groups were not different. At wk 36, the ionized Ca in the cramp group was significantly lower than the control group (1.25+-0.04 vs 1.28+-0.03 mmol/l,p<0.05). Magnesium intake, the concentrations in serum and mononuclear blood cell and urinary magnesium excretion of both pregnant groups were not significantly different. It was concluded that pregnant women who suffered from leg cramps might have higher calcium demand than normal women, whereas magnesium may play a minor role in leg cramps during pregnancy.
Descriptvol.37 no.4 ; 7-14