Exercises to Strengthen Muscles During Pregnancy: References

Kisner C, Colby L. Therapeutic Exercise: Foundations and Techniques. 6th ed. Philadelphia: F. A. Davis Company; 2012.

Melzer K, Schutz Y, Boulvain M, Kayser B. Physical Activity and Pregnancy. Sports Medicine. 2010;40(6):493-507. doi:10.2165/11532290-000000000-00000.

Smith K, Campbell C. Physical Activity during Pregnancy: Impact of Applying Different Physical Activity Guidelines. Journal of Pregnancy. 2013;2013:1-9. doi:10.1155/2013/165617.