Short-term inspiratory muscle training associated with combined aerobic and resistance training is benefic in patients undergoing CABG surgery in phase II cardiac rehabilitation program

Abstract

ObjectiveTo investigate the efficiency of short-term inspiratory muscle training program associated with combined aerobic and resistance exercise on respiratory muscle strength, functional capacity and quality of life in patients who underwent coronary artery bypass and are in the phase II cardiac rehabilitation program.MethodsA prospective, quasi-experimental study with 24 patients who underwent coronary artery bypass and were randomly assigned to two groups in the Phase II cardiac rehabilitation program: inspiratory muscle training program associated with combined training (aerobic and resistance) group (GCR + IMT, n=12) and combined training with respiratory exercises group (GCR, n=12), over a period of 12 weeks, with two sessions per week. Before and after intervention, the following measurements were obtained: maximal inspiratory and expiratory pressures (PImax and PEmax), peak oxygen consumption (peak VO2) and quality of life scores. Data were compared between pre- and post-intervention at baseline and the variation between the pre- and post-phase II cardiac rehabilitation program using the Student's t-test, except the categorical variables, which were compared using the Chi-square test. Values of P<0.05 were considered statistically significant.ResultsCompared to GCR, the GCR + IMT group showed larger increments in PImax (P<0.001), PEmax (P<0.001), peak VO2 (P<0.001) and quality of life scores (P<0.001).ConclusionThe present study demonstrated that the addition of inspiratory muscle training, even when applied for a short period, may potentiate the effects of combined aerobic and resistance training, becoming a simple and inexpensive strategy for patients who underwent coronary artery bypass and are in phase II cardiac rehabilitation.

Effects of High-Intensity Inspiratory Muscle Training Associated with Aerobic Exercise in Patients Undergoing CABG: Randomized Clinical Trial

“…Many studies corroborate this finding both in the use of low-load IMT as in the studies of Gosselink et al [21] , with chronic obstructive pulmonary disease, or of Hermes et al [22] , postoperative node of CABG, or in the systematic reviews of patients with CHF of Montemezzo et al [12] , Plentz et al [13] , and Smart et al. [14] , as well as in high-intensity use observed in the study by Adamopoulos et al.…”

What is the effect of aerobic exercise intensity on cardiorespiratory fitness in those undergoing cardiac rehabilitation? A systematic review with meta-analysis

“…Ten groups (eight studies 36 43 50 52-55 ) where exercise intensity could not be classified, and two groups 48 49 that prescribed light-intensity exercise were excluded from quantitative synthesis. A further ten groups (seven studies [56][57][58][59][60][61] ) were excluded due to missing data. Random-effects meta- Table 3.…”

Comparisons and correlations of pain intensity and respiratory and peripheral muscle strength in the pre- and postoperative periods of cardiac surgery

“…In cardiac surgery patients, decreased RMS has been associated with decreased functional capacity and has contributed to a prolonged period of recovery of lung function and the occurrence of physical deconditioning, which can last for several weeks. (10) Respiratory repercussions also generate changes in RMS, as well as changes in lung volumes and capacities, alveolar dysfunction, depression of central respiratory stimulation, and mechanical disorders of thoracic function. (3,4,11) In addition, it is known that most cardiac surgery patients present with episodes of muscle weakness in the preoperative period, which is accentuated after the surgical procedure.…”