PT  - JOURNAL ARTICLE
AU  - Ivan Peres Costa
AU  - Jessyca Caroline dos Reis Pereira
AU  - Audrey Borghi-Silva
AU  - Dirceu Costa
AU  - Luis Vicente Franco Oliveira
AU  - Roberto Stirbulov
AU  - Luciana Maria Malosá Sampaio
TI  - Evaluate the autonomic nervous system during the shuttle test (TS) in asthma difficult to control
DP  - 2012 Sep 01
TA  - European Respiratory Journal
PG  - P1196
VI  - 40
IP  - Suppl 56
4099  - http://erj.ersjournals.com/content/40/Suppl_56/P1196.short
4100  - http://erj.ersjournals.com/content/40/Suppl_56/P1196.full
SO  - Eur Respir J2012 Sep 01; 40
AB  - Introduction: The autonomic nervous system (ANS) is a primary role in controlling airway caliber and its dysfunction may contribute to the pathogenesis of respiratory diseases. Objective: To evaluate the autonomic nervous system during the Shuttle Test (TS) in asthma difficult to control. Method: Twenty patients with asthma (30-52 years) and fifteen healthy subjects (30-52 years) were studied. We conducted the following procedures: controlled walk test (shuttle test) andheart rate variability. Were recorded for 360 seconds during the Shuttle Test. HRV was analyzed in the time domain (TD) (RMSSD index, ie, the root mean square of squares of differences between successive R-Ri records, and the SDNN index, ie the standard deviation of Ri- R ms in normal and in the frequency domain (FD) from the low frequency (LF) and high frequency (HF) in normalized units (NU) and LF / HF ratio. Results: In DT, the asthma group (GA) had significantly higher values for SDNN and RMSSD) during the Shuttle test, when compared with the control group (CG). In DF, the GC showed significantly higher values of the components of HF and LF and HF components. Conclusion: It can be concluded that patients with difficult to control asthma showed a reduced HRV compared with healthy during the Shuttle Walk Test with an increase in vagal activity simpatic. Thus, it can be suggested that in future studies, HRV can become a useful tool for parameters in cardiovascular risk stratification in this population, and in the evaluation of different physical therapy interventions to treat these patients.