IRCT201208053081N2 IRCT 2013-02-25 Vice Chancellor For Research Loreastan University Of Medical Sciences The effect of birth ball and supportive method on labor pain Comparison the effect of birth ball and supportive method on labor pain 2012-04-20 anticipated 93 Complete https://irct.ir/trial/3101 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention. N/A labor pain in active phase. Intervention 1: In control group receive routine care and standard care without any intervention. Pain intensity with Visual Analog Scale and behavioral pain in cervix dilatations of 3-4, 5-7 and 8-10 centimeter is measured. One time in each period. Intervention 2: Birth ball ntervention1: In birth ball group during three phases of cervical dilatation during labor to parturient 30 minutes sitting on birth ball 90 degrees pelvic to rocking moves left and right forward and hind ward. Pain intensity with Visual Analog Scale and behavioral pain in cervix dilatations of 3-4, 5-7 and 8-10 centimeter is measured. One time in each period. Intervention 3: In support group to help the researcher during three phases of cervical dilatation by talking with psychological support will associated him for 30 minutes. Pain intensity with Visual Analog Scale and behavioral pain in cervix dilatations of 3-4, 5-7 and 8-10 centimeter is measured. One time in each period.