Carbohydrate intake during physical exercise improves muscle performance and decreases fatigue. We hypothesized that carbohydrate intake during labor which is a period of significant physical activity can decrease the instrumental vaginal delivery rate. In a previous study we reported a trend toward a decrease in instrumental vaginal delivery and the mount of carbohydrate intake during labour. However due to some limitations no clear conclusion could be drawn. The present study is designed to examine the relationship between a high calory oral intake (\>44 kCal/hour during labour) and the rate of instrumental delivery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
600
During labor the women will have free access to water and 20 ml commercial fruit juice bricks containing between 430 or 660 kcal/l. Every 2 hours the midwife or the nurse will measure the fruit juice oral intake volume and will advise women to drink the planned volume (1 brick/2hours)
Women will have free access to water only
Caen University Hospital
Caen, France
RECRUITINGinstrumental vaginal delivery
rate of instrumental vaginal delivery
Time frame: 2 days
oxytocin administration
rate of oxytocin administration
Time frame: 2 days
caesarean section
rate of caesarean section
Time frame: 2 days
nausea and vomiting
rate of nausea and vomiting
Time frame: 2 days
thirst sensation on verbal rating scale
self evaluation of thirst using a verbal rating scale from 0 (not thirst to 10 maximal thirst)
Time frame: 2 days
hunger sensation on verbal rating scale
self evaluation of hunger using a verbal rating scale from 0 (no hunger to 10 maximal hunger)
Time frame: 2 days
fatigue
self evaluation of fatigue using a verbal rating scale from 0 (0 no fatigue to 10 exhausted)
Time frame: 2 days
umbilical blood pH
umbilical blood pH measured at child birth
Time frame: 1 min
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