Cancer survivors urged to exercise, even before treatment finishes

— Oregon Health and Science University is training prostate cancer survivors to exercise with their wives. The study will enroll 66 couples, comparing those given twice-a-week muscle-strengthening exercises with pairs who don't get active.

Researchers think exercising together may help both partners stick with it. They're also testing if the shared activity improves both physical functioning and eases the strain that cancer puts on the caregiver and the marriage.

“It has the potential to have not just physical benefits but emotional benefits, too,” says lead researcher Dr. Kerri Winters-Stone.

— Demark-Wahnefried led a recent study of 641 overweight breast cancer survivors that found at-home exercises with some muscle-strengthening, plus a better diet, could slow physical decline.

— Duke University is recruiting 160 lung cancer patients to test if three-times-a-week aerobic exercise, strength training or both could improve their fitness after surgery. Lung cancer has long been thought beyond the reach of exercise benefits because it's so often diagnosed at late stages. But Duke's Dr. Lee Jones notes that thousands who are caught in time to remove the lung tumor do survive about five years, and he suspects that fitness — measured by how well their bodies use oxygen — plays a role.

People with cancer usually get less active as symptoms or treatments make them feel lousy. Plus, certain therapies can weaken muscles, bones, even the heart. Not that long ago, doctors advised taking it easy.

Not anymore: Be as active as you're able, says Dr. Kathryn Schmitz of the University of Pennsylvania, lead author of the new guidelines.

“Absolutely it's as simple as getting up off the couch and walking,” she says.

Exercise programs are beginning to target cancer survivors, like Livestrong at the YMCA, a partnership with cycling great and cancer survivor Lance Armstrong's foundation. The American College of Sports Medicine now certifies fitness trainers who specialize in cancer survivors.

But anyone starting more vigorous activity for the first time or who has particular risks — like the painful arm swelling called lymphedema that some breast cancer survivors experience — may need more specialized exercise advice, Schmitz says. They should discuss physical therapy with their oncologist, she advises.

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