Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors

Sanchez-Solis, A.; Peláez-Hernández, Viridiana; Santiago-Fuentes, Laura M.; Luna-Rodríguez, Guadalupe Lizzbett; Reyes-Lagos, José Javier; Orea-Tejeda, Arturo

doi:10.3390/e25060874

Cited by 3 publications

(1 citation statement)

References 81 publications

(95 reference statements)

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“…This robustness is critical as it helps protect the results from potential disruptions caused by movement artifacts and ectopic heartbeats. On the other hand, both linear features of PRQ fluctuations, such as mPRQ, and nonlinear features, like entropy, have demonstrated sensitivity to changes in the dynamic behavior of CRC, such as body posture and breathing patterns ( 22 ), as well as the ability to identify respiratory changes due to induced relaxation and potential parasympathetic activation ( 62 ). Therefore, this set of indices can likely identify subtle changes in CRC activity between the P and SP groups compared to the rest of the indices.…”

Section: Discussionmentioning

confidence: 99%

Changes in the autonomic cardiorespiratory activity in parturient women with severe and moderate features of preeclampsia

Pichardo-Carmona,

Reyes-Lagos,

Ceballos-Juárez

et al. 2023

Front. Immunol.

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BackgroundCardiorespiratory 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).MethodsWe 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). ResultsThe 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.ConclusionOur 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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Section: Discussionmentioning

confidence: 99%

Changes in the autonomic cardiorespiratory activity in parturient women with severe and moderate features of preeclampsia

Pichardo-Carmona,

Reyes-Lagos,

Ceballos-Juárez

et al. 2023

Front. Immunol.

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A Systematic Review of Breathing Exercise Interventions: An Integrative Complementary Approach for Anxiety and Stress in Adult Populations

Morgan,

Lengacher,

Seo

2024

J Holist Nurs

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Aim: Nurses are well-qualified to deliver integrative complementary therapy interventions, a holistic approach to assist individuals experiencing anxiety and stress. Self-regulated, controlled breathing exercises (a clinical approach) are reported to decrease anxiety and increase stress tolerance. The aim of this systematic review was to evaluate the effectiveness of breathing exercise interventions on the psychological and physiologic outcomes of anxiety and stress among adults and assess the state of the science in the post-COVID-19 population. Methods: A systematic review was conducted, and four scientific databases were searched: PubMed, CINAHL, EMBASE, and Web of Science. Inclusion criteria included: (1) peer-reviewed studies, (2) adults over 18, (3) breathing exercise interventions, and (4) anxiety or stress as outcomes. Results: Out of 309 studies identified, 19 were included. Twelve reported significant improvements in anxiety and nine reported significant improvements in stress following varying breathing exercise interventions ( p < .05). No adverse events were reported. Conclusions: Breathing exercises were found to be effective in reducing anxiety and stress in adults, however, there continues to be limited evidence that includes large randomized controlled trials. Breathing exercises are a holistic care approach that can be safely implemented by nurses to decrease symptomatology among adults, including the post-COVID population.

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Coupling of anticipation and breathing in expert flute performance: the influence of musical structure and practice

Cara,

Mitrovic

2024

Front. Cognit.

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IntroductionIn this study, we examined the cognitive processes and physiological responses involved in learning a flute piece by the composer Charles Koechlin among musicians of different expertise levels. Participants performed the piece four times consecutively, with a 2-min practice interval between the first and the second trial.MethodsUsing data obtained from an eye tracker, respiratory sensors, and an audio recorder we assessed short-term improvement and the effect of musical structure and practice on key variables identified through a multivariate approach: eye-hand span (EHS), time index of EHS, thoracic and abdominal amplitude (breathing patterns) and pupil dilation.ResultsThe analysis revealed two main dimensions: one associated with EHS; and the other with embodied responses to music, closely linked to breathing patterns and pupil dilation. We found an effect of musical structure on all the variables studied, while the EHS improved with practice. Expert musicians demonstrated enhanced EHS and adapted their breathing patterns more effectively to the music's structure.DiscussionThese insights support the hypothesis of a coupling between anticipation and breathing, emphasizing the role of perceptual and embodied components in music reading and learning.

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Induced Relaxation Enhances the Cardiorespiratory Dynamics in COVID-19 Survivors

Cited by 3 publications

References 81 publications

Changes in the autonomic cardiorespiratory activity in parturient women with severe and moderate features of preeclampsia

Changes in the autonomic cardiorespiratory activity in parturient women with severe and moderate features of preeclampsia

A Systematic Review of Breathing Exercise Interventions: An Integrative Complementary Approach for Anxiety and Stress in Adult Populations

Coupling of anticipation and breathing in expert flute performance: the influence of musical structure and practice

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