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- Title
PURSED LIP BREATHING INCREASES UNSUPPORTED UPPER EXTREMITY EXERCISE ENDURANCE AND REDUCES DESATURATION IN COPD.
- Authors
Bharadwaj, Tanushree A.; Jiandani, Mariya Prakash; Mehta, Amita
- Abstract
Introduction: Patients with chronic obstructive pulmonary disease (COPD) report reduced arm exercise capacity, increased fatigue and dyspnea when performing activities of daily living (ADLs) that require the use of upper limbs. Also, arm activity has been noted to result in abnormal dysynchronous breathing patterns. PLB (pursed lip breathing) works to improve expiration, by requiring active and prolonged expiration and by preventing airway collapse. The objective of this study was to evaluate the influence of PLB on upper extremity exercise endurance, oxygen saturation, and dyspnea in patients with moderate to severe COPD. Method: An experimental cross-over study was conducted at the Physiotherapy Department, Seth GSMC and KEMH, Mumbai, India. Sixty patients with moderate to severe COPD were selected. All patients performed unsupported upper extremity exercise with and without PLB in random order. Upper extremity exercise endurance, oxygen saturation, heart rate, blood pressure, respiratory rate, patients' estimated dyspnea, and rate of perceived exertion were recorded before, immediately after, 3 minutes, and until recovery to the baseline on a Borg Category Ratio 10 scale. Result: Wilcoxon matched-pairs signed rank test was done to compare means of any two variables. Statistical significance was set at p < 0.05.The difference between the exercise endurance (number of sets and duration) with spontaneous breathing (SB) and PLB was found to be significant, showing that the patients could exercise more with PLB. The drop in oxygen saturation with PLB is significantly less as compared to SB. The average drop in oxygen saturation was 1.6% less when spontaneous pursed lips breathing was employed. The increase in rate pressure product, respiratory rate, rate of perceived exertion, and dyspnea were significantly less with PLB. Conclusion: Pursed lip breathing can be a useful technique to increase unsupported arm exercise endurance and reduce oxygen desaturation during exercise in patients with moderate to severe COPD.
- Subjects
INDIA; ARM physiology; OBSTRUCTIVE lung disease treatment; EXERCISE; ACTIVE oxygen in the body; CLINICAL trials; CROSSOVER trials; DYSPNEA; PHYSICAL fitness; PROBABILITY theory; RESPIRATION; STATISTICAL sampling; STATISTICAL hypothesis testing; STATISTICS; T-test (Statistics); STATISTICAL power analysis; DATA analysis; STATISTICAL significance; RANDOMIZED controlled trials; DATA analysis software; RESPIRATORY mechanics; DESCRIPTIVE statistics; RESISTANCE training
- Publication
Romanian Journal of Physical Therapy / Revista Romana de Kinetoterapie, 2016, Vol 21, Issue 38, p5
- ISSN
2069-2110
- Publication type
Article