Materials and Methods: Three hundred and sixty-five women (189 pregnant women and 179 nursing mothers) from six selected hospitals in south-west Nigeria participated in this cross-sectional study. Data were obtained on socio-demographic and obstetric characteristics, and practice of antenatal and postnatal exercise. Descriptive and inferential statistics were used to analyze data at P<0.05 alpha level.

Results: The mean age of all the respondents was 28.9± 4.63 years. A majority of the pregnant women responders were nulliparous (39.2%) while the nursing mother responders were mostly multiparous (54.5%). Prevalence for engagement in physical exercise was 81.9% and mostly based on self-prescription (35.5%) and prescription by nurses (28.8%). Antenatal and postnatal exercise practice was 84.7% (160/189) and 79.0% (139/176), respectively. Aerobic (43.5%) and stretching (33.4%) were the most common type of physical exercises. Exercise frequency was mostly 1-2 times per week (40.8%). There was significant association between exercise practice and education level (?²=18.795; P=0.001).

Conclusion: Engagement in antenatal and postnatal exercise among Nigerian pregnant and nursing women was high and mostly based on self-prescription. Education level significantly influence physical exercise practice among Nigerian women with aerobic and stretching as the predominant exercises in pregnancy and postpartum.