(HealthDay News) -- If you have chronic back pain, it can periodically put you out of commission and onto the couch.

Once you're feeling better, exercise can help prevent another bout with an aching back.

You should always check with your doctor before you begin any new activity. But here are some general guidelines about exercise and back pain, courtesy of the University of Michigan Health System:

• Low-impact exercises such as walking, swimming or biking generally are safe for a sore back.
• If your muscles feel sore or tight, take a warm shower before exercising.
• Wear loose clothing, and don't wear shoes.
• Stop any exercise that causes pain
• Avoid exercises such as sit-ups, hip twists, toe touches, or any that involve backward arching.
• Avoid impact sports such as soccer, football and volleyball.
• Avoid any activity that may stress your back, such as lifting heavy weights.