Effects of Different Types of Verbal Activities on Heart Rate Variability
- 1 School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
- 2 School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
- 3 School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
Abstract
In the present study, the effects of different types of verbal activities on heart rate variability (HRV) were investigated. ECG signals were recorded in ten volunteers during resting (R), reading silently (RS), reading aloud (RA) and talking freely (TF). Time domain, frequency domain and Poincaré plot measures of HRV were calculated for analyzing. Time domain parameter of pNN50, frequency domain parameter of LF (n.u.) and Poincaré plot parameter of SD1/SD2 were found statistically difference in RA and TF compared to R and RS. The results in this study show that HRV decreased while subjects were reading aloud and talking freely. The results also indicated that verbal activities of reading aloud and talking freely improve the sympathetic nervous activity.
- Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology, “Heart Rate Variability: Standards of Measurement, Physiological Interpretation and Clinical Use.” Circulation, Vol. 93, No. 5, 1996, pp. 1043-1065. http://dx.doi.org/10.1161/01.CIR.93.5.1043
- C. S. Zuern, P. Barthel and A. Bauer, “Heart Rate Turbulence as Risk-Predictor after Myocardial Infarction,” Frontiers in Physiology, Vol. 2, 2011, p. 99. http://dx.doi.org/10.3389/fphys.2011.00099
- D. Chamchad, J. C. Horrow, L. Nakhamchik and V. A. Arkoosh, “Heart Rate Variability Changes during Pregnancy: An Observational Study,” International Journal of Obstetric Anesthesia, Vol. 16, No. 2, 2007, pp. 106-109 2007. http://dx.doi.org/10.1016/j.ijoa.2006.08.008
- H. V. Huikuri, A. M. Poutiainen, T. H. Mäkikallio, M. J. Koistinen, K. E. Airaksinen, R. D. Mitrani, R. J. Myerburg and A. Castellanos, “Dynamic Behavior and Autonomic Regulation of Ectopic Atrial Pacemakers,” Circulation, Vol. 100, No. 13, 1999, pp. 1416-1422. http://dx.doi.org/10.1161/01.CIR.100.13.1416
- M. P. Tulppo, T. H. Mäkikallio, T. E. Takala, T. Seppänen and H. V. Huikuri, “Quantitative Beat-to-Beat Analysis of Heart Rate Dynamics during Exercise,” American Journal of Physiology, Vol. 271, No. 1, 1996, pp. H244-H252.
- A. Malliani, M. Pagani, F. Lombardi and S. Cerutti, “Cardiovascular Neural Regulation Explored in the Frequency Domain,” Circulation, Vol. 84, No. 1, 1991, pp. 482-492. http://dx.doi.org/10.1161/01.CIR.84.2.482
- M. Pagani, F. Lombardi, S. Guzzetti, O. Rimoldi, R. Furlan, P. Pizzinelli, G. Sandrone, G. Malfatto, S. Dell’Orto, E. Piccaluga, et al., “Power Spectral Analysis of Heart Rate and Arterial Pressure Variabilities as a Marker of Sympatho-Vagal Interaction in Man and Conscious Dog,” Circulation Research, Vol. 59, No. 2, 1986, pp. 178-193. http://dx.doi.org/10.1161/01.RES.59.2.178
- D. L. Eckberg, “Sympathovagal Balance: A Critical Appraisal,” Circulation, Vol. 96, No. 9, 1997, pp. 3224-3232. http://dx.doi.org/10.1161/01.CIR.96.9.3224