Due to relaxin hormone, what condition may arise among pregnant clients?

The correct answer highlights that due to the presence of the hormone relaxin during pregnancy, joint laxity or instability can occur. Relaxin is essential for preparing the body for childbirth. It acts to soften and relax the connective tissues in the body, particularly in the pelvis, which allows for greater flexibility and a broader birth canal. However, this increased laxity is not limited to the pelvic area; it can also affect other joints, leading to an increased risk of instability.

Joint laxity can result in discomfort, altered biomechanics, and potential injury, especially as the body undergoes significant changes during pregnancy. Therefore, understanding the effects of relaxin is crucial for fitness professionals working with pregnant clients, as they must pay close attention to joint stability during exercise and functional activities to avoid injury.

In contrast, the other options, while related to physical experiences during pregnancy, do not accurately describe the direct effects of relaxin. Joint rigidity or stiffness is typically not associated with relaxin; instead, the hormone promotes looseness in the joints. Muscle weakness may also be a concern during pregnancy, but it is not primarily linked to relaxin. Lastly, while cardiovascular endurance can improve due to increased physical activity and adaptations to pregnancy, it is not a direct result of relax