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Effects of inspiratory muscle training in cystic fibrosis: a systematic review.

Abstract

OBJECTIVE

We performed a systematic review to determine the effect of inspiratory muscle training (IMT) on inspiratory muscle strength and endurance, exercise capacity, dyspnoea and quality of life for adolescents and adults living with cystic fibrosis.

DATA SOURCES

MEDLINE, EMBASE and CINAHL electronic databases were searched up to January 2008.

REVIEW METHODS

We performed a systematic review using the methodology outlined in the Cochrane Collaboration protocol. Articles were included if: (1) participants were adolescents or adults with cystic fibrosis (> 13 years of age); (2) an IMT group was compared to a sham IMT, no intervention or other intervention group; (3) the study used a randomized controlled trial or cross-over design; and (4) it was published in English. Data were abstracted and methodological quality was assessed independently by two reviewers.

RESULTS

The search strategy yielded 36 articles, of which two met the inclusion criteria. Both studies used a targeted or threshold device for IMT. Meta-analyses were limited to forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC), which showed no difference in effect between the IMT group and the sham and/or control group. Individual study results were inconclusive for improvement in inspiratory muscle strength. One study demonstrated improvement in inspiratory muscle endurance.

CONCLUSION

The benefit of IMT in adolescents and adults with cystic fibrosis for outcomes of inspiratory muscle function is supported by weak evidence. Its impact on exercise capacity, dyspnoea and quality of life is not clear. Future research should investigate the characteristics of the subgroup of people with cystic fibrosis that might benefit most from IMT.

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  • Authors+Show Affiliations

    ,

    Department of Physical Therapy, University of British Columbia, Muscle Biophysics Laboratory, Vancouver, BC, Canada. darlene.reid@ubc.ca

    , , ,

    Source

    Clinical rehabilitation 22:10-11 pg 1003-13

    MeSH

    Adolescent
    Adult
    Breathing Exercises
    Cystic Fibrosis
    Dyspnea
    Humans
    Inhalation
    Inspiratory Capacity
    Meta-Analysis as Topic
    Muscle Strength
    Quality of Life
    Randomized Controlled Trials as Topic
    Respiratory Muscles
    Respiratory Therapy

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't
    Review
    Systematic Review

    Language

    eng

    PubMed ID

    18955432

    Citation

    Reid, W Darlene, et al. "Effects of Inspiratory Muscle Training in Cystic Fibrosis: a Systematic Review." Clinical Rehabilitation, vol. 22, no. 10-11, 2008, pp. 1003-13.
    Reid WD, Geddes EL, O'Brien K, et al. Effects of inspiratory muscle training in cystic fibrosis: a systematic review. Clin Rehabil. 2008;22(10-11):1003-13.
    Reid, W. D., Geddes, E. L., O'Brien, K., Brooks, D., & Crowe, J. (2008). Effects of inspiratory muscle training in cystic fibrosis: a systematic review. Clinical Rehabilitation, 22(10-11), pp. 1003-13. doi:10.1177/0269215508090619.
    Reid WD, et al. Effects of Inspiratory Muscle Training in Cystic Fibrosis: a Systematic Review. Clin Rehabil. 2008;22(10-11):1003-13. PubMed PMID: 18955432.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Effects of inspiratory muscle training in cystic fibrosis: a systematic review. AU - Reid,W Darlene, AU - Geddes,E Lynne, AU - O'Brien,Kelly, AU - Brooks,Dina, AU - Crowe,Jean, PY - 2008/10/29/pubmed PY - 2009/2/12/medline PY - 2008/10/29/entrez SP - 1003 EP - 13 JF - Clinical rehabilitation JO - Clin Rehabil VL - 22 IS - 10-11 N2 - OBJECTIVE: We performed a systematic review to determine the effect of inspiratory muscle training (IMT) on inspiratory muscle strength and endurance, exercise capacity, dyspnoea and quality of life for adolescents and adults living with cystic fibrosis. DATA SOURCES: MEDLINE, EMBASE and CINAHL electronic databases were searched up to January 2008. REVIEW METHODS: We performed a systematic review using the methodology outlined in the Cochrane Collaboration protocol. Articles were included if: (1) participants were adolescents or adults with cystic fibrosis (> 13 years of age); (2) an IMT group was compared to a sham IMT, no intervention or other intervention group; (3) the study used a randomized controlled trial or cross-over design; and (4) it was published in English. Data were abstracted and methodological quality was assessed independently by two reviewers. RESULTS: The search strategy yielded 36 articles, of which two met the inclusion criteria. Both studies used a targeted or threshold device for IMT. Meta-analyses were limited to forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC), which showed no difference in effect between the IMT group and the sham and/or control group. Individual study results were inconclusive for improvement in inspiratory muscle strength. One study demonstrated improvement in inspiratory muscle endurance. CONCLUSION: The benefit of IMT in adolescents and adults with cystic fibrosis for outcomes of inspiratory muscle function is supported by weak evidence. Its impact on exercise capacity, dyspnoea and quality of life is not clear. Future research should investigate the characteristics of the subgroup of people with cystic fibrosis that might benefit most from IMT. SN - 0269-2155 UR - https://www.unboundmedicine.com/medline/citation/18955432/Effects_of_inspiratory_muscle_training_in_cystic_fibrosis:_a_systematic_review_ L2 - http://journals.sagepub.com/doi/full/10.1177/0269215508090619?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -