Final answer:
During pregnancy, the expanding uterus, rapid weight gain, and the position of the fetus can lead to back strain. The hormone relaxin, which prepares the body for childbirth, can also affect the stability of the spine. Performing back strengthening exercises can help alleviate pain and support the spine during pregnancy.
Step-by-step explanation:
During the late stages of pregnancy, women often suffer from back strain due to the expanding uterus, rapid weight gain, and the position of the fetus. As the uterus grows, it puts pressure on the woman's abdomen and back, leading to discomfort and pain. Additionally, the weight of the fetus can place extra strain on the muscles and ligaments of the lower back.
One reason for back strain during pregnancy is the increased release of the hormone relaxin, which loosens the ligaments in the pelvic area to prepare for childbirth. However, this hormone can also affect the stability of the spine, making it more susceptible to injury and strain.
It is important for pregnant women to take care of their backs and perform back strengthening exercises. These exercises can help improve posture, relieve pain, and support the spine during pregnancy. Examples of back strengthening exercises include pelvic tilts, cat-camel stretches, and prenatal yoga.