Respiratory care
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Comparative Study
Incremental Shuttle Walk Test to Assess and Prescribe Exercise for Subjects With Bronchiectasis: Hallway Versus Treadmill.
The incremental shuttle walk test was initially developed to be carried out in a hallway (ISWT-H) but has been modified to be performed on a treadmill (ISWT-T). However, it is still unknown whether performance on ISWT-H and ISWT-T are similar in patients with bronchiectasis. In this study, we compared the performance, physiological responses, and perception of effort between the ISWT-T with a handrail and ISWT-H for subjects with bronchiectasis. We also sought to estimate and compare the prescription for training intensity with both tests. ⋯ The ISWT-T with handrail and the ISWT-H are not interchangeable in subjects with bronchiectasis. A slower speed of training intensity may occur when the test is performed in a hallway, as originally described, and this may underestimate responses to aerobic training.
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Five-Year Follow-Up and Outcomes of Noninvasive Ventilation in Subjects With Neuromuscular Diseases.
The purpose of this study was to investigate the 5-year outcomes of noninvasive ventilation (NIV) application in different neuromuscular disease (NMD) groups. ⋯ NIV was tolerated long-term without significant increases in daily application time for most subjects with NMD. However, in individuals with ALS, development of severe bulbar symptoms can risk maintaining NIV.
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Exercise training is an effective and low-cost tool for COPD rehabilitation. Thus, validating a non-exhaustive method to determine a patient's anaerobic threshold would be a very interesting tool in practical settings. We aimed to test the reproducibility of critical velocity values determined in a non-exhaustive manner (CVNE) and tolerance for exercise performed at this physiological marker in subjects with COPD. ⋯ Although most of the subjects presented good tolerance for exercise at CVNE, fair levels of reproducibility were observed in subjects with COPD, even using lactate. Thus, the use of CVNE determined through double 3-min efforts should be considered with caution.
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Compressor/nebulizer units are used to deliver inhaled medications to patients with cystic fibrosis. Practitioners and parents frequently replace either the compressor or the nebulizer with a similar component from a different brand. We hypothesized that these changes could affect the compressor/nebulizer flow-pressure and aerosol characteristics. ⋯ Our findings indicate that, in general, replacing the nebulizer or compressor with a different brand changes the flow-pressure and aerosol characteristics. Practitioners should be cautious when changing compressor/nebulizer pairs unless they are aware of the resulting impact on the flow-pressure and aerosol characteristics.
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Editorial Comment
High-Flow Nasal Cannula Devices: Noisier Than We Realize.