Cochrane · systematic review · CD008250

Breathing exercises for chronic obstructive pulmonary disease

Holland, AE, Hill, CJ, Jones, AY, et al. · Cochrane Database of Systematic Reviews · 2012 · Cochrane Library

AirwaysAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
19
current version
GRADE rated
19
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 13 · 68.4%Moderate 6 · 31.6%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Pursed lip breathing compared to no breathing exercises for COPD

Population: individuals with COPD
4 questions
OutcomeEffectEvidenceStatus / GRADE
Dyspnoea during exercise Modified Borg Dyspnoea score Scores range from 0 to 10, with lower scores indicating less shortness of breath
Pursed lip breathing vs no breathing exercises
no estimate extracted1 study · 19 participantsLow
Downgraded: risk of bias
Dyspnoea during daily life University of California San Diego Shortness of Breath Questionnaire Scores range from 0 to 120, with lower scores indicating less shortness of breath
Pursed lip breathing vs no breathing exercises
no estimate extracted1 study · 19 participantsLow
Downgraded: risk of bias
Walking capacity 6‐minute walk distance (metres)
Pursed lip breathing vs no breathing exercises
no estimate extracted1 study · 30 participantsLow
Downgraded: risk of bias
Health‐related quality of life Dyspnoea domain of Hiratsuka scale Scores range from 0 to 100, with lower scores indicating less shortness of breath
Pursed lip breathing vs no breathing exercises
no estimate extracted2 studies · 60 participantsLow
Downgraded: risk of bias

Diaphragmatic breathing compared to no breathing exercises for COPD

Population: individuals with COPD
3 questions
OutcomeEffectEvidenceStatus / GRADE
Dyspnoea Change in Medical Research Council Score
Diaphragmatic breathing vs no breathing exercises
no estimate extracted1 study · 30 participantsModerate
Downgraded: imprecision
Walking capacity Change in 6‐minute walk distance (metres)
Diaphragmatic breathing vs no breathing exercises
no estimate extracted1 study · 30 participantsModerate
Downgraded: imprecision
Health‐related quality of life Change in total score of St George Respiratory Questionnaire
Diaphragmatic breathing vs no breathing exercises
no estimate extracted1 study · 30 participantsModerate
Downgraded: imprecision

Yoga compared to no breathing exercises for COPD

Population: individuals with COPD
4 questions
OutcomeEffectEvidenceStatus / GRADE
Dyspnoea intensity Modified Borg Scale at end of 6‐minute walk test
Yoga vs no breathing exercises
no estimate extracted1 study · 29 participantsLow
Downgraded: risk of bias
Dyspnoea distress Modified Borg scale at end of 6‐minute walk test
Yoga vs no breathing exercises
no estimate extracted1 study · 29 participantsLow
Downgraded: risk of bias
Walking capacity Change in 6‐minute walk distance (m)
Yoga vs no breathing exercises
no estimate extracted2 studies · 74 participantsModerate
Downgraded: risk of bias, imprecision
Health‐related quality of life Total score for St Georges Respiratory Questionnaire
Yoga vs no breathing exercises
no estimate extracted1 study · 45 participantsModerate
Downgraded: risk of bias, imprecision

Pursed lip breathing compared to expiratory muscle training for COPD

Population: individuals with COPD
2 questions
OutcomeEffectEvidenceStatus / GRADE
Dyspnoea during exercise Modified Borg dyspnoea score at end of 6‐minute walk test Scores range from 0 to 10, with lower scores indicating less shortness of breath
Pursed lip breathing vs expiratory muscle training
no estimate extracted1 study · 17 participantsLow
Downgraded: risk of bias, imprecision
Dyspnoea during daily life University of California San Diego Shortness of Breath Questionnaire Scores range from 0 to 120, with lower scores indicating less shortness of breath
Pursed lip breathing vs expiratory muscle training
no estimate extracted1 study · 17 participantsLow
Downgraded: risk of bias, imprecision

Ventilation feedback training compared to exercise training for COPD

Population: individuals with COPD
1 question
OutcomeEffectEvidenceStatus / GRADE
Exercise endurance Duration of constant work rate exercise test (minutes)
Ventilation feedback training vs exercise training
no estimate extracted1 study · 32 participantsLow
Downgraded: risk of bias, imprecision

Ventilation feedback training plus exercise compared to exercise alone for COPD

Population: individuals with COPD
5 questions
OutcomeEffectEvidenceStatus / GRADE
Exercise endurance Duration of constant work rate exercise test on treadmill
Ventilation feedback training plus exercise vs exercise alone
no estimate extracted1 study · 33 participantsLow
Downgraded: risk of bias, imprecision
Walking capacity Change in 6‐minute walk distance (metres)
Ventilation feedback training plus exercise vs exercise alone
no estimate extracted1 study · 40 participantsLow
Downgraded: risk of bias, imprecision
Dyspnoea during treadmill walking Borg scale at isotime during constant work rate treadmill test Scale ranges from 0 to 10, with lower scores indicating less shortness of breath
Ventilation feedback training plus exercise vs exercise alone
no estimate extracted1 study · 33 participantsLow
Downgraded: risk of bias, imprecision
Dyspnoea after walking Change in Borg scale at end of 6‐minute walk test Scale ranges from 0 to 10, with lower scores indicating less shortness of breath
Ventilation feedback training plus exercise vs exercise alone
no estimate extracted1 study · 40 participantsLow
Downgraded: risk of bias, imprecision
Health‐related quality of life Dyspnoea domain of Chronic Respiratory Disease Questionnaire Scale ranges from 1 to 7, with higher scores indicating less shortness of breath
Ventilation feedback training plus exercise vs exercise alone
no estimate extracted2 studies · 73 participantsModerate
Downgraded: risk of bias, imprecision