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Zohdi H, Märki J, Scholkmann F, Wolf U. Cerebral, systemic physiological and behavioral responses to colored light exposure during a cognitive task: A SPA-fNIRS study. Behav Brain Res 2024; 462:114884. [PMID: 38296201 DOI: 10.1016/j.bbr.2024.114884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/10/2024]
Abstract
Colored light has important implications for human health and well-being, as well as for the aesthetics and function of various environments. In addition to its effects on visual function, colored light has significant effects on cognitive performance, behavior and systemic physiology. The aim of the current study was to comprehensively investigate how colored light exposure (CLE) combined with a cognitive task (2-back) affects performance, cerebral hemodynamics, oxygenation, and systemic physiology as assessed by systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS). 36 healthy subjects (22 female, 14 male, age 26.3 ± 5.7 years) were measured twice on two different days. They were exposed to the sequence of blue and red light or vice versa in a randomized crossover design. During the CLE, the subjects were asked to perform a 2-back task. The 2-back task performance was correlated with changes in the concentration of oxygenated hemoglobin in the prefrontal cortex (red: r = -0.37, p = 0.001; blue: r = -0.33, p = 0.004) and the high-frequency component of the heart rate variability (red: r = 0.35, p = 0.003; blue: r = 0.25, p = 0.04). These changes were independent of the CLE. Sequence-dependent effects were observed for fNIRS signals at the visual cortex (VC) and for electrodermal activity (EDA). While both colors caused relatively similar changes in the VC and EDA at the position of the first exposure, blue and red light caused greater changes in the VC and EDA, respectively, in the second exposure. There was no significant difference in the subjects' 2-back task performance between the CLE (p = 0.46). The results of this study provide new insights into how human physiology and behavior respond to colored light exposure. Our findings are important for understanding the impact of colored light in our daily lives and its potential applications in a variety of settings, including education, the workplace and healthcare.
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Affiliation(s)
- Hamoon Zohdi
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; Biomedical Optics Research Laboratory, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
| | - Josefa Märki
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland
| | - Felix Scholkmann
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; Biomedical Optics Research Laboratory, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
| | - Ursula Wolf
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland
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Acosta S, Hassan AM, Gugala Z, Karagoli Z, Hochstetler J, Kiskaddon AL, Checchia P, Faraoni D, Zheng F, Savorgnan F. Higher Cumulative Dose of Opioids and Other Sedatives are Associated with Extubation Failure in Norwood Patients. Pediatr Cardiol 2024; 45:8-13. [PMID: 37880385 DOI: 10.1007/s00246-023-03318-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/03/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND The primary purpose of this study is to evaluate the relationship between sedation usage and extubation failure, and to control for the effects of hemodynamic, oximetric indices, clinical characteristics, ventilatory settings pre- and post-extubation, and echocardiographic (echo) findings in neonates with hypoplastic left heart syndrome (HLHS) post-Norwood procedure. METHODS Single-center, retrospective analysis of Norwood patients during their first extubation post-surgery from January 2015 to July 2021. Extubation failure was defined as reintubation within 48 h of extubation. Demographics, clinical characteristics, ventilatory settings, echo findings (right ventricular function, tricuspid regurgitation), and cumulative dose of sedation medications before extubation were compared between patients with successful or failed extubation. RESULTS The analysis included 130 patients who underwent the Norwood procedure with 121 (93%) successful and 9 (7%) failed extubations. Univariate analyses showed that vocal cord anomaly (p = 0.05), lower end-tidal CO2 (p < 0.01), lower pulse-to-respiratory quotient (p = 0.02), and ketamine administration (p = 0.04) were associated with extubation failure. The use of opioids, benzodiazepines, dexmedetomidine, and ketamine are mutually correlated in this cohort. On multivariable analysis, the vocal cord anomaly (OR = 7.31, 95% CI 1.25-42.78, p = 0.027), pre-extubation end-tidal CO2 (OR = 0.80, 95% CI 0.65-0.97, p = 0.025), and higher cumulative dose of opioids (OR = 10.16, 95% CI 1.25-82.43, p = 0.030) were independently associated with extubation failure while also controlling for post-extubation respiratory support (CPAP/BiPAP/HFNC vs NC), intubation length, and echo results. CONCLUSION Higher cumulative opioid doses were associated with a greater incidence of extubation failure in infants post-Norwood procedure. Therefore, patients with higher cumulative doses of opioids should be more closely evaluated for extubation readiness in this population. Low end-tidal CO2 and low pulse-to-respiratory quotient were also associated with failed extubation. Consideration of the pulse-to-respiratory quotient in the extubation readiness assessment can be beneficial in the Norwood population.
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Affiliation(s)
- Sebastian Acosta
- Department of Pediatrics, Division of Cardiology, Texas Children's Hospital and Baylor College of Medicine, 1102 Bates Ave. Suite 430.01, Houston, Texas, 77030, USA.
| | | | | | | | | | - Amy L Kiskaddon
- Department of Pharmacy, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
- Department of Pediatrics, Division of Cardiology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Paul Checchia
- Department of Pediatrics, Division of Critical Care Medicine, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - David Faraoni
- Arthur S. Keats Division of Pediatric Cardiovascular Anesthesia, Department of Anesthesiology, Perioperative and Pain Medicine, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Feng Zheng
- Department of Pediatrics, Division of Neonatology, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - Fabio Savorgnan
- Department of Pediatrics, Division of Critical Care Medicine, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
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Ide K. Acute hypoxia elicits prefrontal oxygenation asymmetry in young adults. NEUROPHOTONICS 2023; 10:045002. [PMID: 37808565 PMCID: PMC10551723 DOI: 10.1117/1.nph.10.4.045002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023]
Abstract
Significance Cerebrovascular reactivity can be evaluated by prefrontal cortex (PFC) hemodynamic responses and oxygenation changes secondary to hypoxia using near-infrared spectroscopy (NIRS). However, whether there are hemispheric differences in these NIRS-determined PFC hemodynamic responses and oxygenation changes remains unknown. Aim This study was performed to determine whether there are differences in the PFC hemodynamic responses and oxygenation changes secondary to hypoxia between the left and right frontal poles (FPL and FPR, respectively). Approach Fifteen young men participated in the study. During conduction of an isocapnic hypoxia protocol with a 10-min hypoxic phase at partial pressure of end-tidal oxygen (PET O 2 ) of 45 Torr, hemodynamic and oxygenation indices comprising oxygenated hemoglobin (oxy-Hb), deoxygenated Hb (deoxy-Hb), total Hb (total-Hb), and tissue oxygen saturation (StO 2 ) over FPL and FPR were measured by NIRS. The heart rate (HR) was evaluated by electrocardiography. Results In response to hypoxia, the HR increased, oxy-Hb decreased, deoxy-Hb increased, total-Hb increased above baseline, and StO 2 decreased. There was no difference in the change in total-Hb between FPL and FPR. However, there were greater changes in oxy-Hb, deoxy-Hb, and StO 2 over FPL than over FPR, indicating that PFC oxygenation asymmetry occurs in response to hypoxia. Moreover, the change in total-Hb over FPL was associated with the increase in HR. Conclusions NIRS-determined hemodynamic responses and oxygenation changes secondary to hypoxia might not simply reflect the direct effect of hypoxia on cerebral vessels. Although there is no hemispheric difference in the PFC hemodynamic responses to hypoxia as in total-Hb, PFC oxygenation asymmetry occurs in young adults.
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Affiliation(s)
- Kojiro Ide
- Hokusho University, School of Lifelong Sport, Northern Region Lifelong Sports Research Center, Hokkaido, Japan
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Pichardo-Carmona EY, Reyes-Lagos JJ, Ceballos-Juárez RG, Ledesma-Ramírez CI, Mendieta-Zerón H, Peña-Castillo MÁ, Nsugbe E, Porta-García MÁ, Mina-Paz Y. Changes in the autonomic cardiorespiratory activity in parturient women with severe and moderate features of preeclampsia. Front Immunol 2023; 14:1190699. [PMID: 37724103 PMCID: PMC10505439 DOI: 10.3389/fimmu.2023.1190699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 08/03/2023] [Indexed: 09/20/2023] Open
Abstract
Background Cardiorespiratory coupling (CRC) is a physiological phenomenon that reflects the mutual interaction between the cardiac and respiratory control systems. It is mainly associated with efferent vagal activity from the central autonomic network. Few studies have explored the autonomic changes of CRC in preeclampsia, a critical obstetric complication related to possible autonomic dysfunctions and inflammatory disturbances. This study examined the autonomic mechanisms of CRC in women with severe and moderate preeclampsia and healthy controls by applying nonlinear methods based on information theory, such as mutual information (MI) and Renyi's mutual information (RMI) and the linear and nonlinear analysis of the Pulse-Respiration Quotient (PRQ). Methods We studied three groups of parturient women in the third trimester of pregnancy with a clinical diagnosis of preeclampsia without severe symptoms (P, 38.5 ± 1.4 weeks of pregnancy, n=19), preeclampsia with severe symptoms (SP, 37.5 ± 0.9 weeks of pregnancy, n=22), and normotensive control women (C, 39.1 ± 1.3 weeks of pregnancy, n=20). 10-minutes of abdominal electrocardiograms (ECG) and respiratory signals (RESP) were recorded in all the participants. Subsequently, we obtained the maternal beat-to-beat (RR) and breath-to-breath (BB) time series from ECG and RESP, respectively. The CRC between RR and BB was quantified by nonlinear methods based on information theory, such as MI and RMI, along with the analysis of the novel index of PRQ. Subsequently, we computed the mean PRQ (mPRQ) and the normalized permutation entropy (nPermEn_PRQ) from the PRQ time series generated from BB and RR. In addition, we examined the vagal activity in the three groups by the logarithm of the median of the distribution of the absolute values of successive RR differences (logRSA). Results The MI and RMI values were significantly lower (p<0.05) in the preeclamptic groups compared to the control group. However, no significant differences were found between the preeclamptic groups. The logRSA and nPermEn_PRQ indices were significantly lower (p<0.05) in SP compared to C and P. Conclusion Our data suggest that parturient women with severe and mild preeclampsia may manifest an altered cardiorespiratory coupling compared with normotensive control women. Disrupted CRC in severe preeclampsia could be associated with vagal withdrawal and less complex cardiorespiratory dynamics. The difference in vagal activity between the preeclamptic groups may suggest a further reduction in vagal activity associated with the severity of the disease.
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Affiliation(s)
| | | | | | | | - Hugo Mendieta-Zerón
- School of Medicine, Autonomous University of the State of Mexico (UAEMéx), Toluca, Mexico
- Mónica Pretelini Sáenz Maternal-Perinatal Hospital, Health Institute of the State of Mexico (ISEM), Toluca, Mexico
| | | | - Ejay Nsugbe
- Nsugbe Research Labs, Swindon, United Kingdom
| | | | - Yecid Mina-Paz
- Faculty of Health Sciences, Universidad Libre Seccional Cali, Cali, Colombia
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Sánchez-Solís AM, Peláez-Hernández V, Santiago-Fuentes LM, Luna-Rodríguez GL, Reyes-Lagos JJ, Orea-Tejeda A. Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors. ENTROPY (BASEL, SWITZERLAND) 2023; 25:874. [PMID: 37372218 DOI: 10.3390/e25060874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/15/2023] [Accepted: 05/20/2023] [Indexed: 06/29/2023]
Abstract
Most COVID-19 survivors report experiencing at least one persistent symptom after recovery, including sympathovagal imbalance. Relaxation techniques based on slow-paced breathing have proven to be beneficial for cardiovascular and respiratory dynamics in healthy subjects and patients with various diseases. Therefore, the present study aimed to explore the cardiorespiratory dynamics by linear and nonlinear analysis of photoplethysmographic and respiratory time series on COVID-19 survivors under a psychophysiological assessment that includes slow-paced breathing. We analyzed photoplethysmographic and respiratory signals of 49 COVID-19 survivors to assess breathing rate variability (BRV), pulse rate variability (PRV), and pulse-respiration quotient (PRQ) during a psychophysiological assessment. Additionally, a comorbidity-based analysis was conducted to evaluate group changes. Our results indicate that all BRV indices significantly differed when performing slow-paced breathing. Nonlinear parameters of PRV were more appropriate for identifying changes in breathing patterns than linear indices. Furthermore, the mean and standard deviation of PRQ exhibited a significant increase while sample and fuzzy entropies decreased during diaphragmatic breathing. Thus, our findings suggest that slow-paced breathing may improve the cardiorespiratory dynamics of COVID-19 survivors in the short term by enhancing cardiorespiratory coupling via increased vagal activity.
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Affiliation(s)
| | - Viridiana Peláez-Hernández
- Cardiology Service, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas (INER), Mexico City 14080, Mexico
| | - Laura Mercedes Santiago-Fuentes
- School of Medicine, Universidad Autónoma del Estado de México (UAEMéx), Toluca de Lerdo 50180, Mexico
- Health Sciences Department, Universidad Autónoma Metropolitana Unidad Iztapalapa (UAM-I), Mexico City 09340, Mexico
| | | | - José Javier Reyes-Lagos
- School of Medicine, Universidad Autónoma del Estado de México (UAEMéx), Toluca de Lerdo 50180, Mexico
| | - Arturo Orea-Tejeda
- Cardiology Service, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas (INER), Mexico City 14080, Mexico
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Kalauzi A, Matić Z, Platiša MM, Bojić T. Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient. Bioengineering (Basel) 2023; 10:bioengineering10020180. [PMID: 36829674 PMCID: PMC9952035 DOI: 10.3390/bioengineering10020180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 02/05/2023] Open
Abstract
Due to the fact that respiratory breath-to-breath and cardiac intervals between two successive R peaks (BBI and RRI, respectively) are not temporally concurrent, in a previous paper, we proposed a method to calculate both the integer and non-integer parts of the pulse respiration quotient (PRQ = BBI/RRI = PRQint + b1 + b2), b1 and b2 being parts of the border RRIs for each BBI. In this work, we study the correlations between BBI and PRQ, as well as those between BBI and mean RRI within each BBI (mRRI), on a group of twenty subjects in four conditions: in supine and standing positions, in combination with spontaneous and slow breathing. Results show that the BBI vs. PRQ correlations are positive; whereas the breathing regime had little or no effect on the linear regression slopes, body posture did. Two types of scatter plots were obtained with the BBI vs. mRRI correlations: one showed points aggregated around the concurrent PRQint lines, while the other showed randomly distributed points. Five out of six of the proposed aggregation measures confirmed the existence of these two cardio-respiratory coupling regimes. We also used b1 to study the positions of R pulses relative to the respiration onsets and showed that they were more synchronous with sympathetic activation. Overall, this method should be used in different pathological states.
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Affiliation(s)
- Aleksandar Kalauzi
- Department for Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, 11030 Belgrade, Serbia
| | - Zoran Matić
- Biomedical Engineering and Technologies, University of Belgrade, 11000 Belgrade, Serbia
- Correspondence: (Z.M.); (T.B.); Tel.: +381-611-662103 (Z.M.)
| | - Mirjana M. Platiša
- Institute of Biophysics, Faculty of Medicine, University of Belgrade, P.O. Box 22, 11129 Belgrade, Serbia
| | - Tijana Bojić
- Department of Radiation Chemistry and Physics 030, “VINČA” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, Mike Petrovića Alasa 12–14, 11000 Belgrade, Serbia
- Correspondence: (Z.M.); (T.B.); Tel.: +381-611-662103 (Z.M.)
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Kloter E, Walder-Rohner L, Haas H, Hundhammer T, Wolf U. A Prospective Observational Pilot Study on the Effects of the Activity-Based Stress Release Program on the Mental State and Autonomic Nervous System in Psychiatric Patients. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1438:231-237. [PMID: 37845466 DOI: 10.1007/978-3-031-42003-0_36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
BACKGROUND In our pilot study, we investigated the psychological (well-being and personal coping strategies) and physiological (assessed by heart rate variability (HRV)) effects of the newly developed activity-based stress release (ABSR) program for people with depressive disorders, also in combination with burnout symptoms and/or anxiety disorders. METHODS A single-arm prospective observational study was carried out. Twenty participants diagnosed with depression and burnout or anxiety disorders were invited to participate in the 8-week ABSR program. All participants filled in two questionnaires (the multidimensional mental state questionnaire and the Ehrenfeld inventory on coping style) before, directly after and 2 months after the 8-week ABSR program. In addition, all participants were offered a 24-hour Holter ECG measurement before, directly after and 2 months after the 8-week ABSR program to measure HRV. RESULTS Calmness and serenity showed a statistically significant improvement after the 8-week ABSR program. However, complete questionnaire sets were not available from all of the participants. In the four individuals who had agreed to a 24-hour Holter ECG, the overall HRV and parasympathetic activity increased. CONCLUSIONS The ABSR program is an encouraging novel therapeutic approach: A significant improvement in calmness and serenity was observed after ABSR. A larger and controlled trial of this treatment option in depression and burnout is recommended. It should be further investigated how ABSR affects task-evoked and resting brain activity, and what effects it has on the cardiovascular system in general (better blood flow and normalization of activity are to be expected).
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Affiliation(s)
- Evelyne Kloter
- Institute of Complementary and Integrative Medicine, University of Bern, Bern, Switzerland
| | - Lorena Walder-Rohner
- Institute of Complementary and Integrative Medicine, University of Bern, Bern, Switzerland
| | - Harald Haas
- Private Practice for Psychiatry and Psychotherapy, Bern, Switzerland
| | | | - Ursula Wolf
- Institute of Complementary and Integrative Medicine, University of Bern, Bern, Switzerland.
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Matić Z, Kalauzi A, Moser M, Platiša MM, Lazarević M, Bojić T. Pulse respiration quotient as a measure sensitive to changes in dynamic behavior of cardiorespiratory coupling such as body posture and breathing regime. Front Physiol 2022; 13:946613. [PMID: 36620213 PMCID: PMC9816793 DOI: 10.3389/fphys.2022.946613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 11/09/2022] [Indexed: 12/24/2022] Open
Abstract
Objective: In this research we explored the (homeo)dynamic character of cardiorespiratory coupling (CRC) under the influence of different body posture and breathing regimes. Our tool for it was the pulse respiration quotient (PRQ), representing the number of heartbeat intervals per breathing cycle. We obtained non-integer PRQ values using our advanced Matlab® algorithm and applied it on the signals of 20 healthy subjects in four conditions: supine position with spontaneous breathing (Supin), standing with spontaneous breathing (Stand), supine position with slow (0.1 Hz) breathing (Supin01) and standing with slow (0.1 Hz) breathing (Stand01). Main results: Linear features of CRC (in PRQ signals) were dynamically very sensitive to posture and breathing rhythm perturbations. There are obvious increases in PRQ mean level and variability under the separated and joined influence of orthostasis and slow (0.1 Hz) breathing. This increase was most pronounced in Stand01 as the state of joint influences. Importantly, PRQ dynamic modification showed greater sensitivity to body posture and breathing regime changes than mean value and standard deviation of heart rhythm and breathing rhythm. In addition, as a consequence of prolonged supine position, we noticed the tendency to integer quantization of PRQ (especially after 14 min), in which the most common quantization number was 4:1 (demonstrated in other research reports as well). In orthostasis and slow breathing, quantization can also be observed, but shifted to other values. We postulate that these results manifest resonance effects induced by coupling patterns from sympathetic and parasympathetic adjustments (with the second as dominant factor). Significance: Our research confirms that cardiorespiratory coupling adaptability could be profoundly explored by precisely calculated PRQ parameter since cardiorespiratory regulation in healthy subjects is characterized by a high level of autonomic adaptability (responsiveness) to posture and breathing regime, although comparisons with pathological states has yet to be performed. We found Stand01 to be the most provoking state for the dynamic modification of PRQ (cardiorespiratory inducement). As such, Stand01 has the potential of using for PRQ tuning by conditioning the cardiorespiratory autonomic neural networks, e.g., in the cases where PRQ is disturbed by environmental (i.e., microgravity) or pathologic conditions.
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Affiliation(s)
- Zoran Matić
- Biomedical Engineering and Technologies, University of Belgrade, Belgrade, Serbia,*Correspondence: Zoran Matić,
| | - Aleksandar Kalauzi
- Department for Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Maximilian Moser
- Chair of Physiology, Medical University of Graz, Graz, Austria; Human Research Institute, Weiz, Austria
| | - Mirjana M. Platiša
- Institute of Biophysics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Mihailo Lazarević
- Department for Mechanics, Faculty for Mechanical Engineering, University of Belgrade, Belgrade, Serbia
| | - Tijana Bojić
- Department of Radiation Chemistry and Physics, “VINČA” Institute of Nuclear Sciences - National Institute of Thе Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Candia-Rivera D, Sappia MS, Horschig JM, Colier WNJM, Valenza G. Confounding effects of heart rate, breathing rate, and frontal fNIRS on interoception. Sci Rep 2022; 12:20701. [PMID: 36450811 PMCID: PMC9712694 DOI: 10.1038/s41598-022-25119-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 11/24/2022] [Indexed: 12/02/2022] Open
Abstract
Recent studies have established that cardiac and respiratory phases can modulate perception and related neural dynamics. While heart rate and respiratory sinus arrhythmia possibly affect interoception biomarkers, such as heartbeat-evoked potentials, the relative changes in heart rate and cardiorespiratory dynamics in interoceptive processes have not yet been investigated. In this study, we investigated the variation in heart and breathing rates, as well as higher functional dynamics including cardiorespiratory correlation and frontal hemodynamics measured with fNIRS, during a heartbeat counting task. To further investigate the functional physiology linked to changes in vagal activity caused by specific breathing rates, we performed the heartbeat counting task together with a controlled breathing rate task. The results demonstrate that focusing on heartbeats decreases breathing and heart rates in comparison, which may be part of the physiological mechanisms related to "listening" to the heart, the focus of attention, and self-awareness. Focusing on heartbeats was also observed to increase frontal connectivity, supporting the role of frontal structures in the neural monitoring of visceral inputs. However, cardiorespiratory correlation is affected by both heartbeats counting and controlled breathing tasks. Based on these results, we concluded that variations in heart and breathing rates are confounding factors in the assessment of interoceptive abilities and relative fluctuations in breathing and heart rates should be considered to be a mode of covariate measurement of interoceptive processes.
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Affiliation(s)
- Diego Candia-Rivera
- Bioengineering and Robotics Research Center E. Piaggio & Department of Information Engineering, School of Engineering, University of Pisa, 56122, Pisa, Italy.
| | - M Sofía Sappia
- Artinis Medical Systems, B.V., Einsteinweg 17, 6662 PW, Elst, The Netherlands
- Donders Institute for Brain, Behaviour and Cognition, Radboud University Nijmegen, 6525 EN, Nijmegen, The Netherlands
| | - Jörn M Horschig
- Artinis Medical Systems, B.V., Einsteinweg 17, 6662 PW, Elst, The Netherlands
| | - Willy N J M Colier
- Artinis Medical Systems, B.V., Einsteinweg 17, 6662 PW, Elst, The Netherlands
| | - Gaetano Valenza
- Bioengineering and Robotics Research Center E. Piaggio & Department of Information Engineering, School of Engineering, University of Pisa, 56122, Pisa, Italy
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Selvadass S, Paul JJ, Bella Mary I T, Packiavathy ISV, Gautam S. IoT-Enabled smart mask to detect COVID19 outbreak. HEALTH AND TECHNOLOGY 2022; 12:1025-1036. [PMID: 36000088 PMCID: PMC9388365 DOI: 10.1007/s12553-022-00695-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/10/2022] [Indexed: 11/25/2022]
Abstract
Introduction Internet of Things (IoT) has dominated various sectors over human effort with its liberal dimensions of innovations. Shielding various utilizations in terms of extensity, IoT integrated with the cloud has obtained a far-reaching spectrum. Backgrounds Nevertheless, the SARS-CoV-2 has become an imperil, at the present moment causing remarkable demands on health technologies across the globe and gravely snarling the entire world populace. Whilst, the front-runners are striving enormously to uncover this virus, in the event of medications and evolving vaccines, it is also imperative to explore the existing systems dealing with medical emergence, mitigating its spread, and supremely the planning for thwarting this virus. The extant passive face masks provide effective and feasible protection by screening all the air particles entering the nasal passage. Methodology This paper aims to enucleate a new "smart mask" paradigm for telehealth. As the vital health parameters like temperature, respiratory rate(RR), and heart rate(HR) are being easily affected by this deadly virus, this paper envisions a wearable mask equipped with an active sensor (LM35 temperature sensor) that would continuously monitor these health parameters of the person wearing the mask and provide real-time analysis of the data through the cloud. Result This proposed methodology also incorporates a vigilant system that would alert the person, if the necessary physical distance is not maintained. Besides, this application provides a person with a detailed record of his health, sending doctors and hospitals for teleconsultation. Conclusion Experimental results from a functional prototype have proved it a constructive low-cost system.
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Affiliation(s)
- Salomi Selvadass
- Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu India
| | - J. John Paul
- Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu India
| | | | | | - Sneha Gautam
- Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu India
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Xia A. Potential benefits of Qi Gong meditation in quantifiable physiology: A five-year longitudinal observation. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2022. [DOI: 10.1016/j.jtcms.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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12
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Zohdi H, Scholkmann F, Wolf U. Changes in Cerebral Oxygenation and Systemic Physiology During a Verbal Fluency Task: Differences Between Men and Women. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1395:17-22. [PMID: 36527607 DOI: 10.1007/978-3-031-14190-4_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Sex differences in behavioural performance of a cognitive task have been repeatedly reported in the literature. Whether such differences are also relevant for evoked cerebral haemodynamic and oxygenation responses as well as systemic physiological changes is a topic of ongoing investigations. AIM We investigated whether changes in cerebral oxygenation and systemic physiological activity are sex-dependent during a verbal fluency task (VFT). SUBJECTS AND METHODS VFT performance and changes in cerebral oxygenation and systemic physiology were investigated in 32 healthy right-handed adults (17 females, 15 males, age: 25.5 ± 4.3 years). The total duration of the VFT was 9 min. During this phase, subjects were also exposed to blue light (peak wavelength: 450 nm, illuminance: 120 lux). Before and after the VFT, subjects were in darkness. In this study, we used the systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS) approach. Absolute concentration changes of oxyhaemoglobin ([O2Hb]), deoxyhaemoglobin ([HHb]), total haemoglobin ([tHb]), as well as tissue oxygen saturation (StO2) were measured bilaterally over the prefrontal cortex (PFC) and visual cortex (VC). Systemic physiological parameters were also recorded in parallel (e.g., end-tidal CO2, heart rate, respiration rate, skin conductance). RESULTS We found that: (i) Females were better VFT performers in comparison to males. (ii) Changes in [O2Hb] and [HHb] in the VC were higher for males compared to females during the VFT under blue light exposure. (iii) Lower and higher StO2 changes were detected for males compared to females in the PFC and VC, respectively. (iv) Sex-dependent changes were also evident for end-tidal CO2, heart rate, respiration rate, and pulse-respiration quotient. CONCLUSIONS Our study showed that sex differences are not only observed in task performance but also in the magnitudes of changes in cerebral and physiological parameters. The findings of the current study emphasise that sex differences in brain activation and systemic physiological activity need to be considered when interpreting functional neuroimaging data. These findings offer a broad range of implications for educational purposes and facilitate a better understanding of the effects of sex on behavioural performance as well as human physiology.
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Scholkmann F, Zohdi H, Wolf M, Wolf U. Frontal Cerebral Oxygenation in Humans at Rest: A Mirror Symmetry in the Correlation with Cardiorespiratory Activity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1395:45-51. [PMID: 36527612 DOI: 10.1007/978-3-031-14190-4_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Although several studies published reference values for frontal cerebral tissue oxygen saturation (StO2) measured with near-infrared spectroscopy (NIRS) based cerebral oximetry, a detailed investigation, whether and which factors from systemic physiology are related to the individual StO2 values, is missing. AIM We investigated how the state of the cardiorespiratory system is linked to StO2 values at rest. SUBJECTS AND METHODS Absolute StO2 values (median over a 5 min resting-phase while sitting) were obtained from 126 healthy subjects (age: 24.0 ± 0.2 years, 45 males, 81 females) over the left and right prefrontal cortex (PFC) by employing frequency-domain NIRS as part of a systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS) study. In addition, heart rate (HR) and respiration rate (RR) were measured, and the pulse respiration quotient (PRQ) was determined (PRQ = HR/RR). General additive models (GAM) were used to analyse the data. RESULTS The GAM analysis revealed a specific relationship between the overall PFC StO2 values (mean over right and left PFC) and the variables HR and RR: HR was positively correlated with mean StO2, while RR showed no correlation. In the mirror case, RR was negatively linearly correlated with the frontal cerebral oxygenation asymmetry (FCOA), which was not correlated with HR. The right PFC StO2 was not linked to the RR, whereas the left PFC StO2 was. Positive correlations of the PRQ with the mean PFC StO2 as well as the FCOA were also found. GAM modelling revealed that the individual FCOA values are explained to a large extent (deviance explained: 88.8%) by the individual mean PFC StO2 and PRQ. We conclude that (i) the state of the cardiorespiratory system is significantly correlated with StO2 values and (ii) there is a mirror symmetry with regard to the impact of cardiorespiratory parameters on the mean PFC StO2 and FCOA.
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Cairo B, de Abreu RM, Bari V, Gelpi F, De Maria B, Rehder-Santos P, Sakaguchi CA, da Silva CD, De Favari Signini É, Catai AM, Porta A. Optimizing phase variability threshold for automated synchrogram analysis of cardiorespiratory interactions in amateur cyclists. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200251. [PMID: 34689616 DOI: 10.1098/rsta.2020.0251] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/29/2020] [Indexed: 06/13/2023]
Abstract
We propose a procedure suitable for automated synchrogram analysis for setting the threshold below which phase variability between two marker event series is of such a negligible amount that the null hypothesis of phase desynchronization can be rejected. The procedure exploits the principle of maximizing the likelihood of detecting phase synchronization epochs and it is grounded on a surrogate data approach testing the null hypothesis of phase uncoupling. The approach was applied to assess cardiorespiratory phase interactions between heartbeat and inspiratory onset in amateur cyclists before and after 11-week inspiratory muscle training (IMT) at different intensities and compared to a more traditional approach to set phase variability threshold. The proposed procedure was able to detect the decrease in cardiorespiratory phase locking strength during vagal withdrawal induced by the modification of posture from supine to standing. IMT had very limited effects on cardiorespiratory phase synchronization strength and this result held regardless of the training intensity. In amateur athletes training, the inspiratory muscles did not limit the decrease in cardiorespiratory phase synchronization observed in the upright position as a likely consequence of the modest impact of this respiratory exercise, regardless of its intensity, on cardiac vagal control. This article is part of the theme issue 'Advanced computation in cardiovascular physiology: new challenges and opportunities'.
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Affiliation(s)
- Beatrice Cairo
- Department of Biomedical Sciences for Health, University of Milan, Milan 20133, Italy
| | - Raphael Martins de Abreu
- Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Vlasta Bari
- Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, IRCCS Policlinico San Donato, San Donato Milanese, Milan 20097, Italy
| | - Francesca Gelpi
- Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, IRCCS Policlinico San Donato, San Donato Milanese, Milan 20097, Italy
| | | | - Patrícia Rehder-Santos
- Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Camila Akemi Sakaguchi
- Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Claudio Donisete da Silva
- Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Étore De Favari Signini
- Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Aparecida Maria Catai
- Department of Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Alberto Porta
- Department of Biomedical Sciences for Health, University of Milan, Milan 20133, Italy
- Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, IRCCS Policlinico San Donato, San Donato Milanese, Milan 20097, Italy
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Ranjan Y, Althobiani M, Jacob J, Orini M, Dobson RJ, Porter J, Hurst J, Folarin AA. Remote Assessment of Lung Disease and Impact on Physical and Mental Health (RALPMH): Protocol for a Prospective Observational Study. JMIR Res Protoc 2021; 10:e28873. [PMID: 34319235 PMCID: PMC8500349 DOI: 10.2196/28873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Chronic lung disorders like chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF) are characterized by exacerbations. They are unpleasant for patients and sometimes severe enough to cause hospital admission and death. Moreover, due to the COVID-19 pandemic, vulnerable populations with these disorders are at high risk, and their routine care cannot be done properly. Remote monitoring offers a low cost and safe solution for gaining visibility into the health of people in their daily lives, making it useful for vulnerable populations. OBJECTIVE The primary objective is to assess the feasibility and acceptability of remote monitoring using wearables and mobile phones in patients with pulmonary diseases. The secondary objective is to provide power calculations for future studies centered around understanding the number of exacerbations according to sample size and duration. METHODS Twenty participants will be recruited in each of three cohorts (COPD, IPF, and posthospitalization COVID). Data collection will be done remotely using the RADAR-Base (Remote Assessment of Disease And Relapse) mobile health (mHealth) platform for different devices, including Garmin wearable devices and smart spirometers, mobile app questionnaires, surveys, and finger pulse oximeters. Passive data include wearable-derived continuous heart rate, oxygen saturation, respiration rate, activity, and sleep. Active data include disease-specific patient-reported outcome measures, mental health questionnaires, and symptom tracking to track disease trajectory. Analyses will assess the feasibility of lung disorder remote monitoring (including data quality, data completeness, system usability, and system acceptability). We will attempt to explore disease trajectory, patient stratification, and identification of acute clinical events such as exacerbations. A key aspect is understanding the potential of real-time data collection. We will simulate an intervention to acquire responses at the time of the event to assess model performance for exacerbation identification. RESULTS The Remote Assessment of Lung Disease and Impact on Physical and Mental Health (RALPMH) study provides a unique opportunity to assess the use of remote monitoring in the evaluation of lung disorders. The study started in the middle of June 2021. The data collection apparatus, questionnaires, and wearable integrations were setup and tested by the clinical teams prior to the start of recruitment. While recruitment is ongoing, real-time exacerbation identification models are currently being constructed. The models will be pretrained daily on data of previous days, but the inference will be run in real time. CONCLUSIONS The RALPMH study will provide a reference infrastructure for remote monitoring of lung diseases. It specifically involves information regarding the feasibility and acceptability of remote monitoring and the potential of real-time data collection and analysis in the context of chronic lung disorders. It will help plan and inform decisions in future studies in the area of respiratory health. TRIAL REGISTRATION ISRCTN Registry ISRCTN16275601; https://www.isrctn.com/ISRCTN16275601. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/28873.
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Affiliation(s)
- Yatharth Ranjan
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Malik Althobiani
- Royal Free Campus, University College London Respiratory, University College London, London, United Kingdom
| | - Joseph Jacob
- Department of Radiology, University College London Hospital, London, United Kingdom
- Centre for Medical Image Computing, University College London Respiratory, University College London, London, United Kingdom
| | - Michele Orini
- Barts Health NHS Trust, London, United Kingdom
- Barts Heart Centre, University College London Hospitals, London, United Kingdom
| | - Richard Jb Dobson
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, United Kingdom
- Institute of Health Informatics, University College London, London, United Kingdom
- NIHR Biomedical Research Centre at University College London Hospitals, NHS Foundation Trust, London, United Kingdom
| | - Joanna Porter
- Respiratory Medicine, Division of Medicine, Faculty of Medical Sciences, University College London, London, United Kingdom
| | - John Hurst
- Royal Free Campus, University College London Respiratory, University College London, London, United Kingdom
| | - Amos A Folarin
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, United Kingdom
- Institute of Health Informatics, University College London, London, United Kingdom
- NIHR Biomedical Research Centre at University College London Hospitals, NHS Foundation Trust, London, United Kingdom
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Ogasawara I, Hamaguchi S, Hasegawa R, Akeda Y, Ota N, Revankar GS, Konda S, Taguchi T, Takanouchi T, Imoto K, Okimoto N, Sakuma K, Uchiyama A, Yamasaki K, Higashino T, Tomono K, Nakata K. Successful Reboot of High-Performance Sporting Activities by Japanese National Women's Handball Team in Tokyo, 2020 during the COVID-19 Pandemic: An Initiative Using the Japan Sports-Cyber Physical System (JS-CPS) of the Sports Research Innovation Project (SRIP). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9865. [PMID: 34574789 PMCID: PMC8468396 DOI: 10.3390/ijerph18189865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/10/2021] [Accepted: 09/14/2021] [Indexed: 11/18/2022]
Abstract
The COVID-19 pandemic has negatively impacted sporting activities across the world. However, practical training strategies for athletes to reduce the risk of infection during the pandemic have not been definitively studied. The purpose of this report was to provide an overview of the challenges we encountered during the reboot of high-performance sporting activities of the Japanese national handball team during the 3rd wave of the COVID-19 pandemic in Tokyo, Japan. Twenty-nine Japanese national women's handball players and 24 staff participated in the study. To initiate the reboot of their first training camp after COVID-19 stay-home social policy, we conducted: web-based health-monitoring, SARS-CoV-2 screening with polymerase chain reaction (PCR) tests, real-time automated quantitative monitoring of social distancing on court using a moving image-based artificial intelligence (AI) algorithm, physical intensity evaluation with wearable heart rate (HR) and acceleration sensors, and a self-reported online questionnaire. The training camp was conducted successfully with no COVID-19 infections. The web-based health monitoring and the frequent PCR testing with short turnaround times contributed remarkably to early detection of athletes' health problems and to risk screening. During handball, AI-based on-court social-distance monitoring revealed key time-dependent spatial metrics to define player-to-player proximity. This information facilitated appropriate on- and off-game distancing behavior for teammates. Athletes regularly achieved around 80% of maximum HR during training, indicating anticipated improvements in achieving their physical intensities. Self-reported questionnaires related to the COVID management in the training camp revealed a sense of security among the athletes that allowed them to focus singularly on their training. The challenges discussed herein provided us considerable knowledge about creating and managing a safe environment for high-performing athletes in the COVID-19 pandemic via the Japan Sports-Cyber Physical System (JS-CPS) of the Sports Research Innovation Project (SRIP, Japan Sports Agency, Tokyo, Japan). This report is envisioned to provide informed decisions to coaches, trainers, policymakers from the sports federations in creating targeted, infection-free, sporting and training environments.
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Affiliation(s)
- Issei Ogasawara
- Department of Health and Sport Sciences, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (I.O.); (G.S.R.); (S.K.); (K.Y.)
| | - Shigeto Hamaguchi
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (S.H.); (Y.A.); (N.O.); (K.T.)
- Division of Infection Control and Prevention, Osaka University Hospital, Osaka 5650871, Japan
| | - Ryosuke Hasegawa
- Department of Information Networking, Graduate School of Information Science and Technology, Osaka University, Osaka 5650871, Japan;
| | - Yukihiro Akeda
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (S.H.); (Y.A.); (N.O.); (K.T.)
- Division of Infection Control and Prevention, Osaka University Hospital, Osaka 5650871, Japan
- Japan-Thailand Research Collaboration Centre on Emerging and Re-Emerging Infections, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan; (A.U.); (T.H.)
| | - Naoki Ota
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (S.H.); (Y.A.); (N.O.); (K.T.)
| | - Gajanan S. Revankar
- Department of Health and Sport Sciences, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (I.O.); (G.S.R.); (S.K.); (K.Y.)
- Institute for Transdisciplinary Graduate Degree Programs, Osaka University, Osaka 5650871, Japan
| | - Shoji Konda
- Department of Health and Sport Sciences, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (I.O.); (G.S.R.); (S.K.); (K.Y.)
| | - Takashi Taguchi
- Japan Handball Association, Tokyo 1600013, Japan; (T.T.); (T.T.); (K.I.); (N.O.); (K.S.)
- Faculty of Economics and Information, Gifu Shotoku Gakuen University, Gifu 5008288, Japan
| | - Toshiya Takanouchi
- Japan Handball Association, Tokyo 1600013, Japan; (T.T.); (T.T.); (K.I.); (N.O.); (K.S.)
- T-function Inc., Tokyo 1560042, Japan
| | - Kojiro Imoto
- Japan Handball Association, Tokyo 1600013, Japan; (T.T.); (T.T.); (K.I.); (N.O.); (K.S.)
- Department of Orthopedic Surgery, Japanese Red Cross Kumamoto Hospital, Kumamoto 8618520, Japan
| | - Nobukazu Okimoto
- Japan Handball Association, Tokyo 1600013, Japan; (T.T.); (T.T.); (K.I.); (N.O.); (K.S.)
- Medical Corporation Okimoto Clinic, Hiroshima 7340304, Japan
| | - Katsuhiko Sakuma
- Japan Handball Association, Tokyo 1600013, Japan; (T.T.); (T.T.); (K.I.); (N.O.); (K.S.)
- Department of Rehabilitation, Medical Corporation Yamabe-Kai, Kumamoto Seijo Hospital, Kumamoto 8618072, Japan
| | - Akira Uchiyama
- Japan-Thailand Research Collaboration Centre on Emerging and Re-Emerging Infections, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan; (A.U.); (T.H.)
| | - Keita Yamasaki
- Department of Health and Sport Sciences, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (I.O.); (G.S.R.); (S.K.); (K.Y.)
| | - Teruo Higashino
- Japan-Thailand Research Collaboration Centre on Emerging and Re-Emerging Infections, Research Institute for Microbial Diseases, Osaka University, Osaka 5650871, Japan; (A.U.); (T.H.)
| | - Kazunori Tomono
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (S.H.); (Y.A.); (N.O.); (K.T.)
- Division of Infection Control and Prevention, Osaka University Hospital, Osaka 5650871, Japan
| | - Ken Nakata
- Department of Health and Sport Sciences, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan; (I.O.); (G.S.R.); (S.K.); (K.Y.)
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Cardiorespiratory Interaction and Autonomic Sleep Quality Improve during Sleep in Beds Made from Pinus cembra (Stone Pine) Solid Wood. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18189749. [PMID: 34574675 PMCID: PMC8472742 DOI: 10.3390/ijerph18189749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/02/2021] [Accepted: 09/08/2021] [Indexed: 12/27/2022]
Abstract
Cardiorespiratory interactions (CRIs) reflect the mutual tuning of two important organismic oscillators—the heartbeat and respiration. These interactions can be used as a powerful tool to characterize the self-organizational and recreational quality of sleep. In this randomized, blinded and cross-over design study, we investigated CRIs in 15 subjects over a total of 253 nights who slept in beds made from different materials. One type of bed, used as control, was made of melamine faced chipboard with a wood-like appearance, while the other type was made of solid wood from stone pine (Pinus cembra). We observed a significant increase of vagal activity (measured by respiratory sinus arrhythmia), a decrease in the heart rate (as an indicator of energy consumption during sleep) and an improvement in CRIs, especially during the first hours of sleep in the stone pine beds as compared to the chipboard beds. Subjective assessments of study participants’ well-being in the morning and sub-scalar assessments of their intrapsychic stability were significantly better after they slept in the stone pine bed than after they slept in the chipboard bed. Our observations suggest that CRIs are sensitive to detectable differences in indoor settings that are relevant to human health. Our results are in agreement with those of other studies that have reported that exposure to volatile phytochemical ingredients of stone pine (α-pinene, limonene, bornyl acetate) lead to an improvement in vagal activity and studies that show a reduction in stress parameters upon contact with solid wood surfaces.
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Zohdi H, Egli R, Guthruf D, Scholkmann F, Wolf U. Color-dependent changes in humans during a verbal fluency task under colored light exposure assessed by SPA-fNIRS. Sci Rep 2021; 11:9654. [PMID: 33958616 PMCID: PMC8102618 DOI: 10.1038/s41598-021-88059-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/01/2021] [Indexed: 02/03/2023] Open
Abstract
Light evokes robust visual and nonvisual physiological and psychological effects in humans, such as emotional and behavioral responses, as well as changes in cognitive brain activity and performance. The aim of this study was to investigate how colored light exposure (CLE) and a verbal fluency task (VFT) interact and affect cerebral hemodynamics, oxygenation, and systemic physiology as determined by systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS). 32 healthy adults (17 female, 15 male, age: 25.5 ± 4.3 years) were exposed to blue and red light for 9 min while performing a VFT. Before and after the CLE, subjects were in darkness. We found that this long-term CLE-VFT paradigm elicited distinct changes in the prefrontal cortex and in most systemic physiological parameters. The subjects' performance depended significantly on the type of VFT and the sex of the subject. Compared to red light, blue evoked stronger responses in cerebral hemodynamics and oxygenation in the visual cortex. Color-dependent changes were evident in the recovery phase of several systemic physiological parameters. This study showed that the CLE has effects that endure at least 15 min after cessation of the CLE. This underlines the importance of considering the persistent influence of colored light on brain function, cognition, and systemic physiology in everyday life.
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Affiliation(s)
- Hamoon Zohdi
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
| | - Rahel Egli
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
| | - Daniel Guthruf
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
| | - Felix Scholkmann
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland
- Biomedical Optics Research Laboratory, Neonatology Research, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091, Zurich, Switzerland
| | - Ursula Wolf
- University of Bern, Institute of Complementary and Integrative Medicine, Fabrikstrasse 8, 3012, Bern, Switzerland.
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Ben Ayed M, Massaoudi A, Alshaya SA. Smart Recognition COVID-19 System to Predict Suspicious Persons Based on Face Features. JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY 2021; 16:1601-1606. [PMID: 38624711 PMCID: PMC7883761 DOI: 10.1007/s42835-021-00671-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/23/2020] [Accepted: 01/22/2021] [Indexed: 04/17/2024]
Abstract
The coronavirus (COVID-19) is identified at first in Wuhan in December 2019. The apparition of the COVID-19 virus is widely spread to concern all countries worldwide. The World Health Organization (WHO) on March 11 declare COVID-19 a pandemic. This Virus causes a serious infection of the respiratory system. Its high transmission constitutes great problems and challenges. The WHO proposes many actions to limit the spread of the virus such as quarantine and decrease or halt flights between states. The actions taken by states in airports are to detect suspicious persons with COVID-19. We aimed to provide a Computer-Aided Diagnosis (CAD) framework to predict suspicious COVID-19 person. This prediction identifies suspicious persons who suffer from shortness breath which is the main symptom of this disease. Extract shortness breath anomaly through the estimated heart rate from face based-video is the main contribution of the present paper. We developed a Smart Recognition COVID-19 (SRC) system to estimate the breath score. In conclusion, our study achieves an accurate breath score. The error is about 1 breath per minute. The proposed solution is of great importance because it helps managers in the airport to predict suspicious COVID-19 passengers.
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Affiliation(s)
- Mossaad Ben Ayed
- Computer Science Department, College of Sciences and Humanities Sciences At alGhat, Majmaah University, Majmaah, 11952 Saudi Arabia
- Computer and Embedded System Laboratory, Sfax University, Sfax Sfax, Tunisia
| | - Ayman Massaoudi
- Department of Computer Science, Jouf University, Al Jouf, Sakaka, 74331 Saudi Arabia
- Department of Computer Science, Mediatron Lab, Sup’Com, Carthage University, 1054 Tunis, Tunisia
| | - Shaya A. Alshaya
- Computer Science Department, College of Sciences and Humanities Sciences At alGhat, Majmaah University, Majmaah, 11952 Saudi Arabia
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Zohdi H, Scholkmann F, Wolf U. Individual Differences in Hemodynamic Responses Measured on the Head Due to a Long-Term Stimulation Involving Colored Light Exposure and a Cognitive Task: A SPA-fNIRS Study. Brain Sci 2021; 11:54. [PMID: 33466405 PMCID: PMC7824905 DOI: 10.3390/brainsci11010054] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/20/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022] Open
Abstract
When brain activity is measured by neuroimaging, the canonical hemodynamic response (increase in oxygenated hemoglobin ([O2Hb]) and decrease in deoxygenated hemoglobin ([HHb]) is not always seen in every subject. The reason for this intersubject-variability of the responses is still not completely understood. This study is performed with 32 healthy subjects, using the systemic physiology augmented functional near-infrared spectroscopy (SPA-fNIRS) approach. We investigate the intersubject variability of hemodynamic and systemic physiological responses, due to a verbal fluency task (VFT) under colored light exposure (CLE; blue and red). Five and seven different hemodynamic response patterns were detected in the subgroup analysis of the blue and red light exposure, respectively. We also found that arterial oxygen saturation and mean arterial pressure were positively correlated with [O2Hb] at the prefrontal cortex during the CLE-VFT independent of the color of light and classification of the subjects. Our study finds that there is substantial intersubject-variability of cerebral hemodynamic responses, which is partially explained by subject-specific systemic physiological changes induced by the CLE-VFT. This means that both subgroup analyses and the additional assessment of systemic physiology are of crucial importance to achieve a comprehensive understanding of the effects of a CLE-VFT on human subjects.
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Affiliation(s)
- Hamoon Zohdi
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; (H.Z.); (F.S.)
| | - Felix Scholkmann
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; (H.Z.); (F.S.)
- Biomedical Optics Research Laboratory, Neonatology Research, Department of Neonatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
| | - Ursula Wolf
- Institute of Complementary and Integrative Medicine, University of Bern, 3012 Bern, Switzerland; (H.Z.); (F.S.)
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Garg RK, Bhola J, Soni SK. Healthcare monitoring of mountaineers by low power Wireless Sensor Networks. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100775] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Andrade DC, Arce‐Alvarez A, Parada F, Uribe S, Gordillo P, Dupre A, Ojeda C, Palumbo F, Castro G, Vasquez‐Muñoz M, Del Rio R, Ramirez‐Campillo R, Izquierdo M. Acute effects of high-intensity interval training session and endurance exercise on pulmonary function and cardiorespiratory coupling. Physiol Rep 2020; 8:e14455. [PMID: 32748551 PMCID: PMC7399365 DOI: 10.14814/phy2.14455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/24/2020] [Accepted: 04/25/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to determine the acute effects of high-intensity interval training (HIIT) exercise and endurance exercise (EE) on pulmonary function, sympathetic/parasympathetic balance, and cardiorespiratory coupling (CRC) in healthy participants. Using a crossover repeated-measurements design, four females and four males were exposed to EE (20 min at 80% maximal heart rate [HR]), HIIT (1 min of exercise at 90% maximal HR per 1 min of rest, 10 times), or control condition (resting). Pulmonary function, HR, CRC, and heart rate variability (HRV) were assessed before and after the interventions. Results revealed no significant effects of EE or HIIT on pulmonary function. The EE, but not HIIT, significantly increased CRC. In contrast, HRV was markedly changed by HIIT, not by EE. Indeed, both the low-frequency (LFHRV ) and high-frequency (HFHRV ) components of HRV were increased and decreased, respectively, after HIIT. The increase in LFHRV was greater after HIIT than after EE. Therefore, a single bout of HIIT or EE has no effects on pulmonary function. Moreover, CRC and cardiac autonomic regulation are targeted differently by the two exercise modalities.
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Affiliation(s)
- David C. Andrade
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
- Pedagogía en Educación Física, Deportes y RecreaciónUniversidad MayorSantiagoChile
- Laboratory of Cardiorespiratory ControlDepartment of PhysiologyPontificia Universidad Católica de ChileSantiagoChile
| | - Alexis Arce‐Alvarez
- Escuela de KinesiologíaFacultad de SaludUniversidad Católica Silva HenríquezSantiagoChile
- NavarrabiomedComplejo Hospitalario de Navarra (CHN)‐Universidad Pública de Navarra (UPNA)IDISNAPamplonaSpain
| | - Felipe Parada
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Sebastian Uribe
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Pamela Gordillo
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Anita Dupre
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Carla Ojeda
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Fiorella Palumbo
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Guillermo Castro
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
| | - Manuel Vasquez‐Muñoz
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
- NavarrabiomedComplejo Hospitalario de Navarra (CHN)‐Universidad Pública de Navarra (UPNA)IDISNAPamplonaSpain
- Unidad de EstadísticaDepartamento de CalidadClínica Santa MaríaSantiagoChile
| | - Rodrigo Del Rio
- Laboratory of Cardiorespiratory ControlDepartment of PhysiologyPontificia Universidad Católica de ChileSantiagoChile
- Centro de Envejecimiento y Regeneración (CARE)Pontificia Universidad Católica de ChileSantiagoChile
- Centro de Excelencia en Biomedicina de Magallanes (CEBIMA)Universidad de MagallanesPunta ArenasChile
| | - Rodrigo Ramirez‐Campillo
- Centro de Investigación en Fisiología del EjercicioFacultad de CienciasUniversidad MayorSantiagoChile
- Laboratory of Human Performance. Quality of Life and Wellness Research GroupDepartment of Physical Activity SciencesUniversidad de Los LagosOsornoChile
| | - Mikel Izquierdo
- NavarrabiomedComplejo Hospitalario de Navarra (CHN)‐Universidad Pública de Navarra (UPNA)IDISNAPamplonaSpain
- CIBER of Frailty and Healthy Aging (CIBERFES)Instituto de Salud Carlos IIIMadridSpain
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New Directions in Exercise Prescription: Is There a Role for Brain-Derived Parameters Obtained by Functional Near-Infrared Spectroscopy? Brain Sci 2020; 10:brainsci10060342. [PMID: 32503207 PMCID: PMC7348779 DOI: 10.3390/brainsci10060342] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
In the literature, it is well established that regular physical exercise is a powerful strategy to promote brain health and to improve cognitive performance. However, exact knowledge about which exercise prescription would be optimal in the setting of exercise–cognition science is lacking. While there is a strong theoretical rationale for using indicators of internal load (e.g., heart rate) in exercise prescription, the most suitable parameters have yet to be determined. In this perspective article, we discuss the role of brain-derived parameters (e.g., brain activity) as valuable indicators of internal load which can be beneficial for individualizing the exercise prescription in exercise–cognition research. Therefore, we focus on the application of functional near-infrared spectroscopy (fNIRS), since this neuroimaging modality provides specific advantages, making it well suited for monitoring cortical hemodynamics as a proxy of brain activity during physical exercise.
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Keller M, Pelz H, Perlitz V, Zweerings J, Röcher E, Baqapuri HI, Mathiak K. Neural correlates of fluctuations in the intermediate band for heart rate and respiration are related to interoceptive perception. Psychophysiology 2020; 57:e13594. [DOI: 10.1111/psyp.13594] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 03/19/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Micha Keller
- Department of Psychiatry, Psychotherapy and Psychosomatics Medical School RWTH Aachen University Aachen Germany
| | - Holger Pelz
- Deutsche Gesellschaft für Osteopathische Medizin (DGOM) Mannheim Germany
| | | | - Jana Zweerings
- Department of Psychiatry, Psychotherapy and Psychosomatics Medical School RWTH Aachen University Aachen Germany
| | - Erik Röcher
- Department of Psychiatry, Psychotherapy and Psychosomatics Medical School RWTH Aachen University Aachen Germany
| | - Halim Ibrahim Baqapuri
- Department of Psychiatry, Psychotherapy and Psychosomatics Medical School RWTH Aachen University Aachen Germany
| | - Klaus Mathiak
- Department of Psychiatry, Psychotherapy and Psychosomatics Medical School RWTH Aachen University Aachen Germany
- Jülich Aachen Research Alliance (JARA), Translational Brain Medicine Jülich Germany
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25
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Zohdi H, Scholkmann F, Wolf U. Frontal cerebral oxygenation asymmetry: intersubject variability and dependence on systemic physiology, season, and time of day. NEUROPHOTONICS 2020; 7:025006. [PMID: 32607390 PMCID: PMC7310879 DOI: 10.1117/1.nph.7.2.025006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 06/08/2020] [Indexed: 05/04/2023]
Abstract
Significance: Our study reveals that frontal cerebral oxygenation asymmetry (FCOA), i.e. a difference in the oxygenation between the right and left prefrontal cortex (PFC), is a real phenomenon in healthy human subjects at rest. Aim: To investigate FCOA, we performed a study with 134 healthy right-handed subjects with the systemic physiology augmented functional near infrared spectroscopy (SPA-fNIRS) approach. Approach: Subjects were measured 2 to 4 times on different days resulting in an unprecedented number of 518 single measurements of the absolute values of tissue oxygen saturation (StO 2 ) and total hemoglobin concentration ([tHb]) of the right and left PFC. Measurements were performed with frequency-domain functional near-infrared spectroscopy. In addition, the cardiorespiratory parameters were measured simultaneously. Results: We found that (i) subjects showed an FCOA (higherStO 2 on the right PFC), but not for tHb; (ii) intrasubject variability was excellent for bothStO 2 and tHb, and fair for FCOA; (iii) StO 2 correlated significantly with bloodCO 2 concentration, [tHb] with heart rate, respiration rate (RR), and the pulse-respiration quotient (PRQ), and FCOA with RR and PRQ; (iv) FCOA andStO 2 were dependent on season and time of day, respectively; (v) FCOA was negatively correlated with the room temperature; and (vi) StO 2 and tHb were not correlated with the subjects mood but with their chronotype, whereas FCOA was not dependent on the chronotype. Conclusion: Our study demonstrates that FCOA is real, and it provides unique insights into this remarkable phenomenon.
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Affiliation(s)
- Hamoon Zohdi
- University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland
| | - Felix Scholkmann
- University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland
- University of Zurich, University Hospital Zurich, Biomedical Optics Research Laboratory, Department of Neonatology, Zurich, Switzerland
| | - Ursula Wolf
- University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland
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Scholkmann F, Zohdi H, Wolf U. The Resting-State Pulse-Respiration Quotient of Humans: Lognormally Distributed and Centered Around a Value of Four. Physiol Res 2019; 68:1027-1032. [PMID: 31647303 DOI: 10.33549/physiolres.934232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The pulse-respiration quotient (heart rate divided by the respiration rate, PRQ = HR/RR) is a parameter capturing the complex state of cardiorespiratory interactions. We analysed 482 single PRQ values obtained from measurement on 134 healthy adult subjects (49 men, 85 women, age: 24.7 ± 3.4, range: 20-46 years) during rest. We found that the distribution of PRQ values (i) has a global maximum at around a value of 4 (median: 4.19) and (ii) follows a lognormal distribution function. A multimodality of the distribution, associated with several PRQ attractor states was not detected by our group-level based analysis. In summary, our analysis shows that in healthy humans the resting-state PRQ is around 4 and lognormally distributed. This finding supports claims about the special role of the 4 to 1 cardiorespiratory coupling in particular and the PRQ in general for physiological and medical views and applications. To the best of our knowledge, our study is the largest conducted so far in healthy adult humans about reference values of the PRQ during a resting-state at day.
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Affiliation(s)
- F Scholkmann
- University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland,
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