Findings

What do systematic reviews say?

870 questions · 912 findings · 85 reviews · Airways

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No studies found 65 · 7.1%GRADE not reported 34 · 3.7%Very low 115 · 12.6%Low 273 · 29.9%Moderate 330 · 36.2%High 95 · 10.4%

Pursed lip breathing vs no breathing exercises

Six‐minute walk distance · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 30 participants
Low

Pursed lip breathing vs no breathing exercises

Health‐related quality of life Dyspnoea domain of Hiratsuka scale Scores range from 0 to 100, with lower scores indicating less shortness of breath · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 60 participants
Low

Diaphragmatic breathing vs no breathing exercises

Change in dyspnoea score · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 30 participants
Moderate

Diaphragmatic breathing vs no breathing exercises

Change in 6‐minute walking distance · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 30 participants
Moderate

Diaphragmatic breathing vs no breathing exercises

Health‐related quality of life Change in total score of St George Respiratory Questionnaire · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 30 participants
Moderate

Yoga vs no breathing exercises

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 · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 29 participants
Low

Yoga vs no breathing exercises

Dyspnea · patients with chronic obstructive pulmonary disease

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 29 participants
Low

Intervention not reported

Need for increased ventilatory assistance (invasive or non‐invasive) · individuals with an exacerbation of COPD

The intervention may leads to lower need for increased ventilatory assistance (invasive or non‐invasive) (low certainty).

1 finding from 1 review

Airway clearance techniques for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
OR 0.21 [0.05, 0.85]
4 studies · 171 participants
Low

Intervention not reported

Duration of ventilatory assistance days · individuals with an exacerbation of COPD

1 finding from 1 review

Airway clearance techniques for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 54 participants
Low

Intervention not reported

Length of hospital stay days · individuals with an exacerbation of COPD

1 finding from 1 review

Airway clearance techniques for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 171 participants
Low