Maternal Exercise and Antenatal Anxiety

Exclusion Criteria

• •1.pregnant women who have accepted maternal exercise training (at least twice a week in last month);2.pregnant women who have orthopedics, cardiovascular or mental diseases; 3.pregnant women who have or had any condition as follows:miscarriage more than two times,premature delivery,placenta previa,fetal dysplasia, low weight before pregnancy (BMI \<17.5),polycyesis,preeclampsia,premature rupture of membranes,Uterine growth retardation,cervical/ligation,repeated vaginal bleeding,anemia or diabetes; 4.the gestational age is less than 12 weeks or more than 16 weeks;5.received psychotherapy or psychotropic medication within 6 months before the study;6.can not participate in regular inspections.