What factor is MOST likely to increase pain in a patient with low back pain?

Bending is likely to increase pain in a patient with low back pain due to the biomechanical stress it places on the spine and associated structures. When bending forward, the lumbar discs are compressed, which can exacerbate existing conditions such as disc herniation or muscle strain, leading to increased pain. The position can also cause the surrounding muscles to engage in a protective spasm, further contributing to discomfort.

In contrast, resting typically alleviates pain by reducing stress on the spinal structures, while applying ice can help decrease inflammation and numb the area, leading to pain relief. Stretching exercises, when done correctly, can improve flexibility and reduce muscle tension, which may also help in managing pain. Thus, bending is the most likely activity to increase pain in this context.