Sitting with your legs up can be bad for your back if it causes poor posture or strains the lower back muscles.
You should continue physical therapy if it hurts but inform your therapist so they can adjust the treatment plan to avoid exacerbating the pain.
Yes, a heating pad can help relax tight muscles and relieve pain.
The most painful lower back condition is often a herniated disc, which can cause severe pain and nerve compression.
Planks are highly effective for core stability and back pain relief.
Lower back pain in a 70-year-old can be due to muscle weakness, arthritis, or spinal issues related to aging and degeneration.