A little exercise can do your bones good

For older adults, falling down is a big deal. It's the biggest risk factor for a fracture, which -- particularly when it's in the hip -- can be exceedingly dangerous.

The one-year mortality rate after a hip fracture is as high as 25 percent. So, argue researchers in a recent analysis published in the medical journal BMJ, preventing deadly breaks should include preventing falls, not just treating osteoporosis with drugs.

Falls happen for many reasons, and studies have suggested that cutting back on medications that may cause dizziness, supplementing with vitamin D and calcium (to build stronger bones), and making sure the home is safe all have their roles to play.

But once you've tackled the tripping hazards and railing-less staircases, there's no getting around it -- exercise is called for, a program of regular strength and balance training as well as a cardiovascular routine to build endurance.

For the do-it-yourselfers, the U.S. Centers for Disease Control and Prevention has a general strength-training program for older adults on its Web site (cdc.gov/nccdphp/dnpa/physical/growing_stronger/exercises/index.htm).

You may want to start out by focusing on a smaller set of key exercises that work the lower body and are thus aimed specifically at preventing falls, suggests Anne Shumway-Cook, a professor in the department of rehabilitation medicine at the University of Washington. Here are some recommended exercises:

• One can be done at the kitchen sink: Rise on your toes, then lower your heels to the ground, and then rock back on your heels and lift your toes before lowering again. She also recommends front and side kicks to work the hip.

• Another is to sit down, then lift and straighten alternating legs.

• Finally, try easing into and out of a sitting position without using your hands. Most people could benefit from ankle or leg weights to increase the resistance, she says.

• For balance, you can begin with something as simple as standing on both feet and focusing on a point on the wall, trying not to move your body to keep steady, says Joseph Scott, an athletic trainer who is outpatient team leader for orthopedics at Southcoast Hospital Group and Rehabilitation Services, North Dartmouth, Massachusetts.

That can progress to doing the same thing for 30 seconds with closed eyes, then balancing on one foot for 30 seconds, first with eyes open, then with them closed.

Taking up exercise doesn't mean you should ignore other precautions; sometimes a simple change in footwear or making sure electrical cords are out of the way can cut the odds of falling, says Scott. And in some cases, drugs may be appropriate.