PMID- 17667021
OWN - NLM
STAT- MEDLINE
DCOM- 20071025
LR  - 20151119
IS  - 1932-7501 (Print)
IS  - 1932-7501 (Linking)
VI  - 27
IP  - 4
DP  - 2007 Jul-Aug
TI  - Efficacy of pursed-lips breathing: a breathing pattern retraining strategy for 
      dyspnea reduction.
PG  - 237-44
AB  - PURPOSE: Breathing pattern retraining is frequently used for exertional dyspnea 
      relief in adults with moderate to severe chronic obstructive pulmonary disease. 
      However, there is contradictory evidence to support its use. The study objective 
      was to compare 2 programs of prolonging expiratory time (pursed-lips breathing 
      and expiratory muscle training) on dyspnea and functional performance. METHODS: A 
      randomized, controlled design was used for the pilot study. Subjects recruited 
      from the outpatient pulmonary clinic of a university-affiliated Veteran Affairs 
      healthcare center were randomized to: 1) pursed-lips breathing, 2) expiratory 
      muscle training, or 3) control. Changes over time in dyspnea [modified Borg after 
      6-minute walk distance (6MWD) and Shortness of Breath Questionnaire] and 
      functional performance (Human Activity Profile and physical function scale of 
      Short Form 36-item Health Survey) were assessed with a multilevel modeling 
      procedure. Weekly laboratory visits for training were accompanied by structured 
      verbal, written, and audiovisual instruction. RESULTS: Forty subjects with 
      chronic obstructive pulmonary disease [age = 65 +/- 9 (mean +/- standard 
      deviation) years, forced expiratory volume 1 second/forced vital capacity % = 46 
      +/- 10, forced expiratory volume 1 second % predicted = 39 +/- 13, body mass 
      index = 26 +/- 6 kg/m, inspiratory muscle strength = 69 +/- 22 cm H2O, and 
      expiratory muscle strength (PEmax) = 102 +/- 29 cm H2O] were enrolled. No 
      significant Group x Time difference was present for PEmax (P = .93). Significant 
      reductions for the modified Borg scale after 6MWD (P = .05) and physical function 
      (P = .02) from baseline to 12 weeks were only present for pursed-lips breathing. 
      CONCLUSION: Pursed-lips breathing provided sustained improvement in exertional 
      dyspnea and physical function.
FAU - Nield, Margaret A
AU  - Nield MA
AD  - VA Greater Los Angeles Healthcare System, West Los Angeles Healthcare Center, Los 
      Angeles, CA, USA. mnield@earthlink.net
FAU - Soo Hoo, Guy W
AU  - Soo Hoo GW
FAU - Roper, Janice M
AU  - Roper JM
FAU - Santiago, Silverio
AU  - Santiago S
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - J Cardiopulm Rehabil Prev
JT  - Journal of cardiopulmonary rehabilitation and prevention
JID - 101291247
SB  - IM
MH  - Aged
MH  - *Breathing Exercises
MH  - Dyspnea/etiology/physiopathology/*rehabilitation
MH  - Female
MH  - Forced Expiratory Volume/physiology
MH  - Humans
MH  - *Lip
MH  - Male
MH  - Middle Aged
MH  - Muscle Strength/physiology
MH  - Pulmonary Disease, Chronic 
      Obstructive/complications/physiopathology/*rehabilitation
MH  - Quality of Life
MH  - Respiratory Muscles/*physiopathology
MH  - Surveys and Questionnaires
MH  - Treatment Outcome
EDAT- 2007/08/02 09:00
MHDA- 2007/10/27 09:00
CRDT- 2007/08/02 09:00
PHST- 2007/08/02 09:00 [pubmed]
PHST- 2007/10/27 09:00 [medline]
PHST- 2007/08/02 09:00 [entrez]
AID - 01273116-200707000-00010 [pii]
AID - 10.1097/01.HCR.0000281770.82652.cb [doi]
PST - ppublish
SO  - J Cardiopulm Rehabil Prev. 2007 Jul-Aug;27(4):237-44. doi: 
      10.1097/01.HCR.0000281770.82652.cb.