Inspiratory muscle training improves physical performance and cardiac autonomic modulation in older women

Purpose Aging impairs the autonomic balance reducing the vagal and increasing the sympathetic components of heart rate variability (HRV) and this could be associated with a decline in physical capacity. Inspiratory muscle training (IMT) is a possible tool to attenuate this physical capacity decline...

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Bibliographic Details
Published in:European journal of applied physiology 2018-06, Vol.118 (6), p.1143-1152
Main Authors: Rodrigues, Gabriel Dias, Gurgel, Jonas Lírio, Gonçalves, Thiago Rodrigues, da Silva Soares, Pedro Paulo
Format: Article
Language:English
Subjects:
Aging
Biomedical and Life Sciences
Biomedicine
Heart diseases
Heart rate
Human Physiology
Occupational Medicine/Industrial Medicine
Original Article
Physical training
Respiration
Sports Medicine
Vagus nerve
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Summary:Purpose Aging impairs the autonomic balance reducing the vagal and increasing the sympathetic components of heart rate variability (HRV) and this could be associated with a decline in physical capacity. Inspiratory muscle training (IMT) is a possible tool to attenuate this physical capacity decline in older women. The aim of this study was to investigate the influence of IMT in the older women on physical capacity and autonomic cardiac modulation at rest and post exercise. Methods 20 female participants 60–72 years old were randomly allocated in two groups. One group underwent IMT set at 50% of maximum inspiratory pressure (MIP), every day for 4 weeks (IMT-group). The placebo group performed the same training procedure but with a minimal resistance (5% MIP; PLA-group). Every week, the IMT load was readjusted and the HRV evaluated at rest. The six-minute walk test (6MWT) was performed once pre and post IMT-intervention. The IMT-group and PLA-group performed the same test and intervention procedures. Results After a 5 weeks intervention, the MIP had significantly improved in the IMT-group but not in the PLA-group ( p  
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-018-3844-9