1.   Because physical fitness is the big ticket to better health, doctors want their patients to exercise.

2.   In the absence of such guidelines, John Grohol, who runs a Columbus-based mental health web site, says potential patients should exercise caution.

3.   Patients exercise three times a week, two hours a day, meet weekly with a psycholgist and twice in a group.

4.   So that patients could exercise in bed, he redesigned a hospital bed and developed simple exercises.

5.   Sometimes oral steroids are used to counter the inflammation around a herniated disk and reduce the pain enough to permit the patient to exercise.

6.   The chamber offers new possibilities, say researchers, by allowing patients to exercise without bearing too much weight too soon.

7.   The heart rate and blood pressure do not increase when patients exercise, for example, and they may faint when they try to exert themselves.

8.   The most common problem was the pacemaker inappropriately speeding up, causing the heart to beat as though the patient had been exercising.

9.   The products are rate-responsive, which would allow a heart patient to exercise and briefly raise his heart rate without prompting a response from the pacemaker.

10.   They were trying to determine how strenuously heart disease patients could exercise.