Our academic paper was published in the international journal
'Springer Nature' in July 2019.
LF oscillation represents vasomotor activity, which indicates activity and stress. On the other hand, the HF oscillation corresponds to respiratory activity, which represents relaxation. A significant difference was found in the case of HF power of ECG. The ECG HF component is a representation of vagal activity [14]. ECG HF power reflects the parasympathetic nervous system activity. The HF power increase indicates an improvement of parasympathetic nervous system activity. The rise of High Frequency (HF) components indicates improved vagal nerve activity, which is observed in Fig. 3 after using the VNS device. There is a significantly different HF ratio between ECG acquisition before VNS and after VNS device usage.
© Springer Nature Switzerland AG 2020 T. Ahram (Ed.): AHFE 2019, AISC 973, pp. 57–62, 2020.
https://doi.org/10.1007/978-3-030-20476-1_7
Our academic paper was published in the international journal
'Springer Nature' in July 2020.
This study concludes that the ECG analysis of the HF ratio for the real device shows a significant increase in the HF ratio and reduction in stress. In the EEG analysis, the increase in the alpha power ratio of F3, F4, Fp1, and Fp2 indicates stress reduction. Based on the salivary melatonin results, the nighttime melatonin level of insomnia persons after using the real device shows a significant value, resulting in induced sleep in insomnia persons. The subjective evaluation also shows a satisfactory level after the use of the real device. Thus, the real AMO+ device reduces stress and improves sleep induction. It provides sleep improvement for individuals who cannot fall asleep easily due to stress, people who sleep less than 7 hours, and people suffering from sleep problems. It is also helpful for wellness purposes for individuals such as active people who care about wellness and want to improve their body functions, people who need their heart rate and respiration rate stabilized, and people who are living uncomfortably due to stress. Although this study is limited to the analysis of bio-signals and melatonin levels, the future study will focus on full night sleep monitoring for insomnia persons in order to assess overnight sleep quality.
© The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2020 T. Ahram and C. Falcão (Eds.): AHFE 2020, AISC 1217, pp. 579–585, 2020.
https://doi.org/10.1007/978-3-030-51828-8_76