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Addition of inspiratory muscle training to aerobic training improves cardiorespiratory responses to exercise in patients with heart failure and inspiratory muscle weakness.
Am Heart J 2009; 158(5):768.e1-7AH

Abstract

BACKGROUND

This small clinical trial tested the hypothesis that the addition of inspiratory muscle training (IMT) to aerobic exercise training (AE) results in further improvement in cardiorespiratory responses to exercise than those obtained with AE in patients with chronic heart failure (CHF) and inspiratory muscle weakness (IMW).

METHODS

Twenty-four patients with CHF and IMW (maximal inspiratory pressure <70% of predicted) were randomly assigned to a 12-week program of AE plus IMT (AE + IMT, n = 12) or to AE alone (AE, n = 12). Before and after intervention, the following measures were obtained: maximal inspiratory muscle pressure (PI(max)), peak oxygen uptake (Vo(2)peak), peak circulatory power, oxygen uptake efficiency slope, ventilatory efficiency, ventilatory oscillation, oxygen uptake kinetics during recovery (T(1/2)Vo(2)), 6-minute walk test distance, and quality of life scores.

RESULTS

Compared to AE, AE + IMT resulted in additional significant improvement in PI(max) (110% vs 72%), Vo(2)peak (40% vs 21%), circulatory power, oxygen uptake efficiency slope, ventilatory efficiency, ventilatory oscillation, and T(1/2)Vo(2). Six-minute walk distance and quality of life scores improved similarly in the 2 groups.

CONCLUSION

This randomized trial demonstrates that the addition of IMT to AE results in improvement in cardiorespiratory responses to exercise in selected patients with CHF and IMW. The clinical significance of these findings should be addressed by larger randomized trials.

Authors+Show Affiliations

Hospital de Clinicas de Porto Alegre, RS, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

19853695

Citation

Winkelmann, Eliane R., et al. "Addition of Inspiratory Muscle Training to Aerobic Training Improves Cardiorespiratory Responses to Exercise in Patients With Heart Failure and Inspiratory Muscle Weakness." American Heart Journal, vol. 158, no. 5, 2009, pp. 768.e1-7.
Winkelmann ER, Chiappa GR, Lima CO, et al. Addition of inspiratory muscle training to aerobic training improves cardiorespiratory responses to exercise in patients with heart failure and inspiratory muscle weakness. Am Heart J. 2009;158(5):768.e1-7.
Winkelmann, E. R., Chiappa, G. R., Lima, C. O., Viecili, P. R., Stein, R., & Ribeiro, J. P. (2009). Addition of inspiratory muscle training to aerobic training improves cardiorespiratory responses to exercise in patients with heart failure and inspiratory muscle weakness. American Heart Journal, 158(5), pp. 768.e1-7. doi:10.1016/j.ahj.2009.09.005.
Winkelmann ER, et al. Addition of Inspiratory Muscle Training to Aerobic Training Improves Cardiorespiratory Responses to Exercise in Patients With Heart Failure and Inspiratory Muscle Weakness. Am Heart J. 2009;158(5):768.e1-7. PubMed PMID: 19853695.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Addition of inspiratory muscle training to aerobic training improves cardiorespiratory responses to exercise in patients with heart failure and inspiratory muscle weakness. AU - Winkelmann,Eliane R, AU - Chiappa,Gaspar R, AU - Lima,Camila O C, AU - Viecili,Paulo R N, AU - Stein,Ricardo, AU - Ribeiro,Jorge P, Y1 - 2009/10/02/ PY - 2009/06/14/received PY - 2009/09/03/accepted PY - 2009/10/27/entrez PY - 2009/10/27/pubmed PY - 2010/1/1/medline SP - 768.e1 EP - 7 JF - American heart journal JO - Am. Heart J. VL - 158 IS - 5 N2 - BACKGROUND: This small clinical trial tested the hypothesis that the addition of inspiratory muscle training (IMT) to aerobic exercise training (AE) results in further improvement in cardiorespiratory responses to exercise than those obtained with AE in patients with chronic heart failure (CHF) and inspiratory muscle weakness (IMW). METHODS: Twenty-four patients with CHF and IMW (maximal inspiratory pressure <70% of predicted) were randomly assigned to a 12-week program of AE plus IMT (AE + IMT, n = 12) or to AE alone (AE, n = 12). Before and after intervention, the following measures were obtained: maximal inspiratory muscle pressure (PI(max)), peak oxygen uptake (Vo(2)peak), peak circulatory power, oxygen uptake efficiency slope, ventilatory efficiency, ventilatory oscillation, oxygen uptake kinetics during recovery (T(1/2)Vo(2)), 6-minute walk test distance, and quality of life scores. RESULTS: Compared to AE, AE + IMT resulted in additional significant improvement in PI(max) (110% vs 72%), Vo(2)peak (40% vs 21%), circulatory power, oxygen uptake efficiency slope, ventilatory efficiency, ventilatory oscillation, and T(1/2)Vo(2). Six-minute walk distance and quality of life scores improved similarly in the 2 groups. CONCLUSION: This randomized trial demonstrates that the addition of IMT to AE results in improvement in cardiorespiratory responses to exercise in selected patients with CHF and IMW. The clinical significance of these findings should be addressed by larger randomized trials. SN - 1097-6744 UR - https://www.unboundmedicine.com/medline/citation/19853695/Addition_of_inspiratory_muscle_training_to_aerobic_training_improves_cardiorespiratory_responses_to_exercise_in_patients_with_heart_failure_and_inspiratory_muscle_weakness_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0002-8703(09)00722-4 DB - PRIME DP - Unbound Medicine ER -