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Randomized Controlled Trial
. 2015 Nov-Dec;30(6):620-5.
doi: 10.5935/1678-9741.20150077.

Effects of Resistance Exercise Applied Early After Coronary Artery Bypass Grafting: a Randomized Controlled Trial

Nayana Nazaré Pessoa Sousa Ximenes  1 , Daniel Lago Borges  1 , Reijane Oliveira Lima  1 , Mayara Gabrielle Barbosa e Silva  1 , Luan Nascimento da Silva  1 , Marina de Albuquerque Gonçalves Costa  1 , Thiago Eduardo Pereira Baldez  1 , Vinícius José da Silva Nina  1
Affiliations
Randomized Controlled Trial

Effects of Resistance Exercise Applied Early After Coronary Artery Bypass Grafting: a Randomized Controlled Trial

Nayana Nazaré Pessoa Sousa Ximenes et al. Braz J Cardiovasc Surg. 2015 Nov-Dec.

Abstract

Objective: To evaluate the effects of resistance exercise applied early after coronary artery bypass grafting.

Methods: It is a randomized controlled trial with 34 patients undergoing coronary artery bypass grafting between August 2013 and May 2014. Patients were randomized into two groups by simple draw: a control group (n=17), who received conventional physical therapy and an intervention group (n=17), who received, additionally, resistance exercise. Pulmonary function and functional capacity were evaluated in preoperative period and hospital discharge by spirometry and the six-minute walk test. For statistical analysis, we used the following tests: Shapiro-Wilk, Mann-Whitney, Student'st and Fisher's exact. Variables with P<0.05 were considered significant.

Results: Groups were homogeneous in terms of demographic, clinical and surgical variables. Resistance exercise exerted no effect on pulmonary function of intervention group compared to control group. However, intervention group maintained functional capacity at hospital discharge measured by percentage of predict distance in 6MWT (54.122.7% vs. 52.515.5%,P=0.42), while control group had a significant decrease (59.211.1% vs. 50.69.9%, P<0.016).

Conclusion: Our results indicate that resistance exercise, applied early, may promote maintenance of functional capacity on coronary artery bypass grafting patients, having no impact on pulmonary function when compared to conventional physical therapy.

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Figures

Fig. 1
Fig. 1
Flow chart
Fig. 2
Fig. 2
Functional capacity pre-exercise, and post-exercise in the intervention and control groups. Mann-Whitney test.
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