Cardiovascular Surgical Procedures
Conditions
Interventions
This is a three-arm, randomized, double-blind, controlled clinical study. The study will include 102 volunteers eligible for cardiac surgery who meet the eligibility criteria, randomized to inspirator
five repetitions, two minutes of training and two minutes of rest, totaling 150 respiratory cycles. Inspiratory muscle training endurance group (IMT-E): resistance training for 20 minutes at 30% of ma
totaling 300 respiratory cycles. Inspiratory muscle training control group (IMT-C): placebo training for 20 minutes at 10% of maximum inspiratory pressure (MIP), with interval flow
five repetitions, two minutes of training and two minutes of rest, totaling 150 respiratory cycles. In all groups, inspiratory muscle training (IMT) will be performed using an inspiratory threshold re
Sponsors
Universidade Federal de Santa Maria
Universidade Federal de Santa Maria
Eligibility
Age
40 Years to No maximum
Inclusion criteria
Inclusion criteria: Volunteers aged 40 or older; with a medical prescription for physiotherapy; candidates for valve replacement (VT), coronary artery bypass grafting (CABG), or combined surgery (CABG + VT); clinically stable
Exclusion criteria
Exclusion criteria: Individuals with unstable angina; severe valvular heart disease; head and/or spinal trauma; severe trunk injury; neurological disorders; vocal cord paralysis and laryngeal disorders assessed by an otolaryngologist in the preoperative period; self-reported gastroesophageal reflux (GERD) and/or hearing loss; untreated or exacerbated psychiatric disorders; difficulty responding to questionnaires adequately due to allo- or autopsychological factors; acute kidney injury; peripheral neuropathy; musculoskeletal disease; morbid obesity (Body mass index greater than 40 kg/m²); infectious disease; cancer patients (post-chemotherapy); who have not undergone surgery; who have not had at least five days of preoperative intervention; participants who developed surgical wound infection, stroke and/or myocardial infarction during surgery; worsening of the hospitalization condition
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| It is expected to observe positive effects on voice production, with superior results in the inspiratory muscle strength training group (IMST) compared to the inspiratory muscle endurance training (IMET) and control inspiratory muscle training (CIMT) groups, evaluated by means of self-perception analysis using questionnaires, and through pitch sustain and loudness in the pre- and post-operative periods of cardiac surgery;It is expected to find improvement in cardiorespiratory function, with a greater magnitude of gain in the inspiratory muscle strength training group (IMST) compared to the inspiratory muscle endurance training (IMET) and control inspiratory muscle training (CIMT) groups, verified by means of manovacuometry and spirometry, based on the finding of increase or stability of maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and lung volumes in the pre- and post-operative periods of cardiac surgery;It is expected to identify improvement in functional capacity, with more significant results in the inspiratory muscle strength training group (IMST) compared to the inspiratory muscle endurance training (IMET) and control inspiratory muscle training (CIMT) groups, evaluated by means of the 6-minute walk test, based on the measurement of the distance covered in the pre- and post-operative periods of cardiac surgery | — |
Secondary
| Measure | Time frame |
|---|---|
| It is expected to observe a more pronounced reduction in the occurrence of post-operative complications and hospital stay length in participants of the inspiratory muscle strength training group (IMST) compared to the other groups, verified by means of medical record analysis, based on the counting of days of stay and recording of adverse events;It is expected to identify a reduction in frailty indexes, with more expressive results in the inspiratory muscle strength training group (IMST) compared to the inspiratory muscle endurance training (IMET) and control inspiratory muscle training (CIMT) groups, measured by means of questionnaires and physical tests, based on the analysis of vulnerability criteria and frailty phenotype;It is expected to observe a gain in peripheral muscle strength, with superiority in the inspiratory muscle strength training group (IMST) compared to the inspiratory muscle endurance training (IMET) and control inspiratory muscle training (CIMT) groups, measured by handgrip strength and the five-times sit-to-stand test, based on the measurement of strength in kilogram-force and the test execution time | — |
Countries
BR
Contacts
Public ContactCarine Callegaro
Universidade Federal de Santa Maria
Outcome results
None listed