AI Article Synopsis
- Nonlinear measures can provide insights into the heart's beating patterns, particularly when recordings are taken during daily activities for a clearer understanding of cardiac output.
- The study involved monitoring 50 adolescents over two hours while they engaged in school activities, focusing on the differences in cardiac output between those with high anxiety and low anxiety.
- Results showed that high-anxious adolescents had significantly lower fractal dimension and entropy in their heartbeats, indicating a less complex regulatory mechanism in their cardiac system compared to their low-anxiety peers.
Article Abstract
Nonlinear measures can capture the complex structure of the heart beating, and recordings taken while the individual performs daily activities may help to understand the cardiac system's output in natural conditions. As healthy systems are characterized by having highly complex outputs, we hypothesized that the cardiac output from high anxious adolescents should be less complex than the output from their low anxious counterparts. In this study ECG was recorded for two hours in 50 adolescents while they performed regular school activities. Fractal dimension (FD), scaling exponents and multiscale entropy were calculated on the interbeat intervals time series. Both FD and entropy were significantly lower in the high-anxious group than the low-anxious group. These results suggest different heart-related regulation in adolescents who suffered from high anxious symptomatology.
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| http://dx.doi.org/10.1016/j.ijpsycho.2015.07.007 | DOI Listing |
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