Database: Cochrane Central Register of Controlled Trials
#1asthma*:ti,ab,kw
#2“breathing exercises”:ti,ab,kw
#3yoga:ti,ab,kw
#4yogic:ti,ab,kw
#5Buteyko:ti,ab,kw
#6Pranayama:ti,ab,kw
#7Papworth:ti,ab,kw
#8“inspiratory muscle training”:ti,ab,kw
#9“expiratory muscle training”:ti,ab,kw
#10breath*:ti or respirat*:ti
#11physiotherap*:ti or physical therap*:ti
#12(#10 AND #11)
#13breath*:ab or respirat*:ab
#14physiotherap*:ab or physical therap*:ab
#15(#13 AND #14)
#16paced:ti,ab or pursed:ti,ab
#17(( #11 OR #14 ) AND #16)
#18exercise*:ti or training:ti or retraining:ti or pattern*:ti or technique*:ti
#19(#10 AND #18)
#20exercise*:ab or training:ab or retraining:ab or pattern*:ab or technique*:ab
#21(#13 AND #20)
#22diaphragm*:ti,ab
#23(#22 AND ( #18 OR #20 ))
#24diaphragmatic next breath*
#25biofeedback:ti,ab,kw
#26(#2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9 OR #12 OR #15 OR #17 OR #19 OR #21 OR #23 OR #24 OR #25)
#27(#1 AND #26), from 1990 to 2011

From: Appendix B, Search Strategies

Cover of Breathing Exercises and/or Retraining Techniques in the Treatment of Asthma: Comparative Effectiveness
Breathing Exercises and/or Retraining Techniques in the Treatment of Asthma: Comparative Effectiveness [Internet].
Comparative Effectiveness Reviews, No. 71.
O’Connor E, Patnode CD, Burda BU, et al.

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