Author： Cockram Joanne Jenkins Sue Clugston Richard
Publisher： Informa Healthcare
ISSN： 1532-5040
Source： Physiotherapy Theory and Practice, Vol.15, Iss.1, 1999-03, pp. : 3-15
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Abstract
The energy demands of exercise are high in subjects with acute cardiopulmonary dysfunction, and the effects of ambulation as a therapy in subjects following coronary artery surgery have not been examined extensively. This study monitored oxygen saturation (SpO2) , heart rate and rhythm continuously before, during and after ambulation and stair climbing (without supplemental oxygen therapy) in the initial period following coronary artery surgery. The timing of each activity was determined using specific clinical criteria. Breathlessness scores and ratings of perceived exertion (RPE) were measured after exercise. Significant arterial oxygen desaturation did not occur. During ambulation and stair climbing, mean SpO2 remained greater than 92% and the increase in heart rate did not exceed 20 beats/min. A trend towards a reduction in the frequency of simple and complex ventricular ectopy was observed during and following exercise. This has not previously been reported in studies of this population. No association existed between SpO2 and heart rate, rhythm, RPE or breathlessness scores. The results indicate that, when appropriate clinical criteria are met, ambulation and stair climbing in the initial period following uncomplicated coronary artery surgery does not result in adverse clinical sequelae.
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