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Reported November 7, 2012

Exercise Proves to Help Parkinson’s Patients

 

(Ivanhoe Newswire) – In the United States, at least 500,000 people are believed to suffer from Parkinson's disease, and about 50,000 new cases are reported annually. Researchers are now believe exercise is helping gait impairment improve. 
 
Gait impairment is associated with functional decline in patients with Parkinson Disease (PD) and current therapies are inadequate at preserving mobility as PD progresses. There is growing interest in the use of  physical exercise, including treadmill, stretching and resistance exercises, appears to improve gait speed, muscle strength and fitness for patients with Parkinson disease (PD).
 
Lisa M. Shulman, M.D., of the University of Maryland School of Medicine, Baltimore, and colleagues conducted a randomized clinical trial of three types of physical exercise to compare the effectiveness of treadmill, stretching and resistance exercises in improving gait speed, strength and fitness for patients with PD.
 
The study included 67 patients with PD who had gait impairment and were randomly assigned to one of three groups in the trial: a higher intensity treadmill exercise (30 minutes at 70 percent to 80 percent of heart rate reserve); a lower-intensity treadmill exercise (50 minutes at 40 percent to 50 percent of heart rate reserve); and stretching and resistance exercises (two sets of 10 repetitions on each leg on three resistance machines). Patients performed the exercises three times a week for three months.
 
The effects of exercise were seen across all three exercise groups. The lower-intensity treadmill exercise resulted in the greatest improvement in gait speed. Both the higher- and lower-intensity treadmill exercises improved cardiovascular fitness. Only the stretching and resistance exercises improved muscle strength. Therefore, exercise can improve gait speed, muscle strength and fitness for patients with Parkinson disease.
 
According to the study results, all three types of exercise improved distance on the 6-minute walk: lower-intensity treadmill exercise (12 percent increase), stretching and resistance exercises (9 percent increase) , and higher-intensity treadmill exercises (6 percent increase). Both types of treadmill training improved cardiovascular fitness, whereas stretching and resistance had no effect. Only stretching and resistance improved muscle strength (16 percent increase).
 
"The fact that the lower-intensity treadmill exercise is the most feasible exercise for most patients with PD has important implications for clinical practice. Although treadmill and resistance training are beneficial for gait, fitness and muscle strength, these benefits were not accompanied by improvements in disability and quality of life," the authors were quoted saying.
 
"This research adds to the evidence regarding the value of interventions for PD beyond medications and surgery and offers an opportunity for patients to be active participants in their care," Liana S. Rosenthal, M.D was quoted saying.
 
"Exercise programs among those with neurological disorders increase the patients' sense of self-efficacy, their sense of involvement in their care and overall belief in their abilities to perform certain activities. In essence, exercise puts the patient – not a pill – at the center of care, which is exactly where patients want and ought to be," Rosenthal concluded. 
 
Source: JAMA, November 2012
 

 

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