Mansueto Gomes-Neto1, Micheli Bernardone Saquetto2, Cassio Magalhães Silva3, Vitor Oliveira Carvalho4, Nildo Ribeiro3, Cristiano Sena Conceição3. 1. Department of Physical Therapy, Federal University of Bahia, Salvador, Bahia, Brazil; Postgraduate Program in Medicine and Health - UFBA, Salvador, Bahia, Brazil; The GREAT Group (Study Group on Physical Activity), Aracaju, Sergipe, Brazil. Electronic address: mansueto.neto@ufba.br. 2. Department of Physical Therapy, Federal University of Bahia, Salvador, Bahia, Brazil; Postgraduate Program in Medicine and Health - UFBA, Salvador, Bahia, Brazil. 3. Department of Physical Therapy, Federal University of Bahia, Salvador, Bahia, Brazil. 4. The GREAT Group (Study Group on Physical Activity), Aracaju, Sergipe, Brazil; Department of Physical Therapy, Federal University of Sergipe, Aracaju, Sergipe, Brazil.
Abstract
OBJECTIVE: To examine the effects of respiratory muscle training on respiratory function, respiratory muscle strength, and exercise tolerance in patients poststroke. DATA SOURCES: We searched MEDLINE, Cochrane Library, Embase, SciELO, Physiotherapy Evidence Database (PEDro), and CINAHL (from the earliest date available to November 2015) for trials. STUDY SELECTION: Randomized controlled trials (RCTs) that examined the effects of respiratory muscle training versus nonrespiratory muscle training in patients poststroke. Two reviewers selected studies independently. DATA EXTRACTION: Extracted data from the published RCTs. Study quality was evaluated using the PEDro Scale. Weighted mean differences (WMDs), standard mean differences (SMDs), and 95% confidence intervals (CIs) were calculated. DATA SYNTHESIS: Eight studies met the study criteria. Respiratory muscle training improved maximal inspiratory pressure WMDs (7.5; 95% CI, 2.7-12.4), forced vital capacity SMDs (2.0; 95% CI, 0.6-3.4), forced expiratory volume at 1 second SMDs (1.2; 95% CI, 0.6-1.9), and exercise tolerance SMDs (0.7; 95% CI, 0.2-1.2). No serious adverse events were reported. CONCLUSIONS: Respiratory muscle training should be considered an effective method of improving respiratory function, inspiratory muscle strength, and exercise tolerance in patients poststroke. Further research is needed to determine optimum dosages and duration of effect.
OBJECTIVE: To examine the effects of respiratory muscle training on respiratory function, respiratory muscle strength, and exercise tolerance in patients poststroke. DATA SOURCES: We searched MEDLINE, Cochrane Library, Embase, SciELO, Physiotherapy Evidence Database (PEDro), and CINAHL (from the earliest date available to November 2015) for trials. STUDY SELECTION: Randomized controlled trials (RCTs) that examined the effects of respiratory muscle training versus nonrespiratory muscle training in patients poststroke. Two reviewers selected studies independently. DATA EXTRACTION: Extracted data from the published RCTs. Study quality was evaluated using the PEDro Scale. Weighted mean differences (WMDs), standard mean differences (SMDs), and 95% confidence intervals (CIs) were calculated. DATA SYNTHESIS: Eight studies met the study criteria. Respiratory muscle training improved maximal inspiratory pressure WMDs (7.5; 95% CI, 2.7-12.4), forced vital capacity SMDs (2.0; 95% CI, 0.6-3.4), forced expiratory volume at 1 second SMDs (1.2; 95% CI, 0.6-1.9), and exercise tolerance SMDs (0.7; 95% CI, 0.2-1.2). No serious adverse events were reported. CONCLUSIONS: Respiratory muscle training should be considered an effective method of improving respiratory function, inspiratory muscle strength, and exercise tolerance in patients poststroke. Further research is needed to determine optimum dosages and duration of effect.
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