Findings

What do systematic reviews say?

286 questions · 287 findings · 9 reviews · Airways

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No studies found 20 · 7%GRADE not reported 24 · 8.4%Very low 11 · 3.8%Low 58 · 20.2%Moderate 139 · 48.4%High 35 · 12.2%

Pursed lip breathing 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 · 19 participants
Low

Yoga 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
2 studies · 74 participants
Moderate

Yoga vs no breathing exercises

QoL · 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 · 45 participants
Moderate

Pursed lip breathing vs expiratory muscle training

1 finding from 1 review

Breathing exercises for chronic obstructive pulmonary disease 2012 · Cochrane Headline outcomes only
no estimate extracted
1 study · 17 participants
Low

Pursed lip breathing vs expiratory muscle training

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 · 17 participants
Low

Ventilation feedback training vs exercise

Exercise endurance Duration of constant work rate exercise test (minutes) · 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 · 32 participants
Low

Ventilation feedback training plus exercise vs exercise

Exercise endurance Duration of constant work rate exercise test on treadmill · 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 · 33 participants
Low

Ventilation feedback training plus exercise vs exercise

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 · 40 participants
Low

Ventilation feedback training plus exercise vs exercise

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 · 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 · 33 participants
Low

Ventilation feedback training plus exercise vs exercise

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 · 40 participants
Low

Ventilation feedback training plus exercise vs exercise

Health‐related quality of life (Change in CRQ Dyspnoea) CRQ · 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 · 73 participants
Moderate

Pursed lip breathing 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 · 19 participants
Low

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

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