Which factor increases the risk for osteoporosis in a client?

Prolonged immobility is a significant risk factor for osteoporosis due to its direct impact on bone health. When a person is immobile for an extended period, the lack of weight-bearing activities leads to decreased mechanical loading on the bones. This mechanical stress is crucial for maintaining bone density because bones respond to the forces they encounter by becoming denser and stronger. In contrast, when bones aren't subjected to these stresses, the process of bone resorption (where bone is broken down) can outpace bone formation, resulting in a decrease in overall bone mass and strength.

Engaging regularly in weight-bearing exercise promotes bone health and is protective against osteoporosis, while high calcium intake supports bone density. Normal menstrual cycles indicate balanced hormonal function, which is also protective. In contrast, prolonged immobility does not provide these benefits, thus increasing the risk for developing osteoporosis.