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van den Bongard F, Gowik JK, Coenen J, Jakobsmeyer R, Reinsberger C. Exercise-induced central and peripheral sympathetic activity in a community-based group of epilepsy patients differ from healthy controls. Exp Brain Res 2024; 242:1301-1310. [PMID: 38551692 PMCID: PMC11108887 DOI: 10.1007/s00221-024-06792-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/22/2024] [Indexed: 05/23/2024]
Abstract
Ictal and interictal activity within the autonomic nervous system is characterized by a sympathetic overshoot in people with epilepsy. This autonomic dysfunction is assumed to be driven by alterations in the central autonomic network. In this study, exercise-induced changes of the interrelation of central and peripheral autonomic activity in patients with epilepsy was assessed. 21 patients with epilepsy (16 seizure-free), and 21 healthy matched controls performed an exhaustive bicycle ergometer test. Immediately before and after the exercise test, resting state electroencephalography measurements (Brain Products GmbH, 128-channel actiCHamp) of 5 min were carried out to investigate functional connectivity assessed by phase locking value in source space for whole brain, central autonomic network and visual network. Additionally, 1-lead ECG (Brain products GmbH) was performed to analyze parasympathetic (root mean square of successive differences (RMSSD) of the heart rate variability) and sympathetic activity (electrodermal activity (meanEDA)). MeanEDA increased (p < 0.001) and RMSSD decreased (p < 0.001) from pre to post-exercise in both groups. Correlation coefficients of meanEDA and central autonomic network functional connectivity differed significantly between the groups (p = 0.004) after exercise. Both patients with epilepsy and normal control subjects revealed the expected physiological peripheral autonomic responses to acute exhaustive exercise, but alterations of the correlation between central autonomic and peripheral sympathetic activity may indicate a different sympathetic reactivity after exercise in patients with epilepsy. The clinical relevance of this finding and its modulators (seizures, anti-seizure medication, etc.) still needs to be elucidated.
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Affiliation(s)
| | - Julia Kristin Gowik
- Institute of Sports Medicine, Paderborn University, Warburger Straße 100, 33098, Paderborn, Germany
| | - Jessica Coenen
- Institute of Sports Medicine, Paderborn University, Warburger Straße 100, 33098, Paderborn, Germany
| | - Rasmus Jakobsmeyer
- Institute of Sports Medicine, Paderborn University, Warburger Straße 100, 33098, Paderborn, Germany
| | - Claus Reinsberger
- Institute of Sports Medicine, Paderborn University, Warburger Straße 100, 33098, Paderborn, Germany.
- Division of Sports Neurology & Neurosciences, Department of Neurology, Mass General Brigham, Harvard Medical School, Boston, MA, USA.
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Boylan KA, Dworetzky BA, Baslet G, Polich G, Angela O’Neal M, Reinsberger C. Functional neurological disorder, physical activity and exercise: What we know and what we can learn from comorbid disorders. Epilepsy Behav Rep 2024; 27:100682. [PMID: 38953100 PMCID: PMC11215960 DOI: 10.1016/j.ebr.2024.100682] [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: 03/25/2024] [Revised: 05/29/2024] [Accepted: 05/29/2024] [Indexed: 07/03/2024] Open
Abstract
Functional neurological disorder (FND) is a common neurologic disorder associated with many comorbid symptoms including fatigue, pain, headache, and orthostasis. These concurrent symptoms lead patients to accumulate multiple diagnoses comorbid with FND, including fibromyalgia, chronic fatigue syndrome, postural orthostatic tachycardia syndrome, persistent post-concussive symptoms, and chronic pain. The role of physical activity and exercise has not been evaluated in FND populations, though has been studied in certain comorbid conditions. In this traditional narrative literature review, we highlight some existing literature on physical activity in FND, then look to comorbid disorders to highlight the therapeutic potential of physical activity. We then consider abnormalities in the autonomic nervous system (ANS) as a potential pathophysiological explanation for symptoms in FND and comorbid disorders and postulate how physical activity and exercise may provide benefit via autonomic regulation.
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Affiliation(s)
- Kelly A. Boylan
- Division of Epilepsy and Neurology, Brigham and Women’s Hospital, Boston, MA, United States
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, United States
| | - Barbara A. Dworetzky
- Division of Epilepsy and Neurology, Brigham and Women’s Hospital, Boston, MA, United States
| | - Gaston Baslet
- Department of Psychiatry, Brigham and Women’s Hospital, Boston, MA, United States
| | - Ginger Polich
- Department of Physical Medicine and Rehabilitation, Mass General Brigham, Boston, MA, United States
| | - M. Angela O’Neal
- Department of Neurology, Brigham and Women’s Hospital, Boston, MA, United States
| | - Claus Reinsberger
- Division of Sports Neurology and Neurosciences, Mass General Brigham Boston, MA, United States
- Institute of Sports Medicine, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany
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Farrell G, Reily-Bell M, Chapple C, Kennedy E, Sampath K, Gisselman AS, Cook C, Katare R, Tumilty S. Autonomic nervous system and endocrine system response to upper and lower cervical spine mobilization in healthy male adults: a randomized crossover trial. J Man Manip Ther 2023; 31:421-434. [PMID: 36794952 PMCID: PMC10642313 DOI: 10.1080/10669817.2023.2177071] [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: 12/08/2022] [Accepted: 01/26/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Cervical spine mobilizations may differentially modulate both components of the stress response, consisting of the autonomic nervous system and hypothalamic pituitary adrenal-axis, depending on whether the target location is the upper or lower cervical spine. To date, no study has investigated this. METHODS A randomized, crossover trial investigated the effects of upper versus lower cervical mobilization on both components of the stress response simultaneously. The primary outcome was salivary cortisol (sCOR) concentration. The secondary outcome was heart rate variability measured with a smartphone application. Twenty healthy males, aged 21-35, were included. Participants were randomly assigned to block-AB (upper then lower cervical mobilization, n = 10) or block-BA (lower than upper cervical mobilization, n = 10), separated by a one-week washout period. All interventions were performed in the same room (University clinic) under controlled conditions. Statistical analyses were performed with a Friedman's Two-Way ANOVA and Wilcoxon Signed Rank Test. RESULTS Within groups, sCOR concentration reduced thirty-minutes following lower cervical mobilization (p = 0.049). Between groups, sCOR concentration was different at thirty-minutes following the intervention (p = 0.018). CONCLUSION There was a statistically significant reduction in sCOR concentration following lower cervical spine mobilization, and between-group difference, 30 min following the intervention. This indicates that mobilizations applied to separate target locations within the cervical spine can differentially modulate the stress response.
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Affiliation(s)
- Gerard Farrell
- Centre for Health, Activity, and Rehabilitation Research, School of Physiotherapy, North Dunedin, New Zealand
| | - Matthew Reily-Bell
- Department of Physiology, HeartOtago, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Cathy Chapple
- Centre for Health, Activity, and Rehabilitation Research, School of Physiotherapy, North Dunedin, New Zealand
| | - Ewan Kennedy
- Centre for Health, Activity, and Rehabilitation Research, School of Physiotherapy, North Dunedin, New Zealand
| | - Kesava Sampath
- Centre for Health and Social Practice, Waikato Institute of Technology-Rotokauri Campus, Hamilton, Waikato, New Zealand
| | | | - Chad Cook
- Doctor of Physical Therapy Program, Duke University, Durham, North Carolina, USA
| | - Rajesh Katare
- Department of Physiology, HeartOtago, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Steve Tumilty
- Centre for Health, Activity, and Rehabilitation Research, School of Physiotherapy, North Dunedin, New Zealand
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Freire APCF, Amin S, Lira FS, Morano AEVA, Pereira T, Coelho-E-Silva MJ, Caseiro A, Christofaro DGD, Dos Santos VR, Júnior OM, Pinho RA, Silva BSDA. Autonomic Function Recovery and Physical Activity Levels in Post-COVID-19 Young Adults after Immunization: An Observational Follow-Up Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2251. [PMID: 36767620 PMCID: PMC9915325 DOI: 10.3390/ijerph20032251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/19/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Coronavirus disease 2019 (COVID-19) has detrimental multi-system consequences. Symptoms may appear during the acute phase of infection, but the literature on long-term recovery of young adults after mild to moderate infection is lacking. Heart rate variability (HRV) allows for the observation of autonomic nervous system (ANS) modulation post-SARS-CoV-2 infection. Since physical activity (PA) can help improve ANS modulation, investigating factors that can influence HRV outcomes after COVID-19 is essential to advancements in care and intervention strategies. Clinicians may use this research to aid in the development of non-medication interventions. At baseline, 18 control (CT) and 20 post-COVID-19 (PCOV) participants were observed where general anamnesis was performed, followed by HRV and PA assessment. Thus, 10 CT and 7 PCOV subjects returned for follow-up (FU) evaluation 6 weeks after complete immunization (two doses) and assessments were repeated. Over the follow-up period, a decrease in sympathetic (SNS) activity (mean heart rate: p = 0.0024, CI = -24.67--3.26; SNS index: p = 0.0068, CI = -2.50--0.32) and increase in parasympathetic (PNS) activity (mean RR: p = 0.0097, CI = 33.72-225.51; PNS index: p = 0.0091, CI = -0.20-1.47) were observed. At follow-up, HRV was not different between groups (p > 0.05). Additionally, no differences were observed in PA between moments and groups. This study provides evidence of ANS recovery after SARS-CoV-2 insult in young adults over a follow-up period, independent of changes in PA.
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Affiliation(s)
- Ana Paula Coelho Figueira Freire
- Department of Health Sciences, Central Washington University, Ellensburg, WA 98926, USA
- Physiotherapy Department, Universidade do Oeste Paulista (UNOESTE), Presidente Prudente 19050-920, Brazil
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
| | - Shaan Amin
- Department of Health Sciences, Central Washington University, Ellensburg, WA 98926, USA
| | - Fabio Santos Lira
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
- Faculty of Sport Science and Physical Education, University of Coimbra, CIDAF, 3000-456 Coimbra, Portugal
| | - Ana Elisa von Ah Morano
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
| | - Telmo Pereira
- Faculty of Sport Science and Physical Education, University of Coimbra, CIDAF, 3000-456 Coimbra, Portugal
- Polytechnic of Coimbra, ESTESC, 3046-854 Coimbra, Portugal
- Laboratory for Applied Health Research (LabinSaúde), 3046-854 Coimbra, Portugal
| | - Manuel-João Coelho-E-Silva
- Faculty of Sport Science and Physical Education, University of Coimbra, CIDAF, 3000-456 Coimbra, Portugal
| | - Armando Caseiro
- Polytechnic of Coimbra, ESTESC, 3046-854 Coimbra, Portugal
- Laboratory for Applied Health Research (LabinSaúde), 3046-854 Coimbra, Portugal
- Molecular Physical-Chemistry R & D Unit, Faculty of Science and Technology, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Diego Giulliano Destro Christofaro
- Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
| | - Vanessa Ribeiro Dos Santos
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
| | - Osmar Marchioto Júnior
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
| | - Ricardo Aurino Pinho
- Graduate Program in Health Sciences, School of Medicine, Pontificia Universidade Catolica Do Parana, Curitiba 80215-901, Brazil
| | - Bruna Spolador de Alencar Silva
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil
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van den Bongard F, Coenen J, Reinsberger C. Fitness, performance, and cardiac autonomic responses to exercise in people with epilepsy. Epilepsy Behav 2022; 135:108869. [PMID: 36037579 DOI: 10.1016/j.yebeh.2022.108869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/28/2022] [Accepted: 07/29/2022] [Indexed: 11/03/2022]
Abstract
People with epilepsy (PWE) are less fit and have an increased risk of sudden cardiac death. Imbalances within the autonomic nervous system (ANS) are believed to mediate some of those effects. However, results are mostly derived from patients whose seizures are refractory to medical therapy. In this study, an exhaustive bicycle ergometer test was delivered to 25 PWE (19 seizure free in the last 6 months) recruited in a community-based setting and 25 age-, sex-, and BMI-matched healthy controls. During the exercise test a 12-channel ECG was recorded and spirometry was carried out to determine the maximal oxygen uptake (VO2peak) as the gold standard to assess fitness. Before and after exercise, heart rate variability (HRV) and electrodermal activity (EDA) were measured along with an electroencephalogram (EEG). Blood samples were collected to determine anti-seizure drug (ASD) serum levels and physical activity of daily living was evaluated via the International Physical Activity Questionnaire (IPAQ). People with epilepsy and healthy controls were similarly fit and physically active. However, PWE had a lower maximum heart rate, a lower heart rate reserve, and a lower chronotropic index. The ratio between low- to high-frequency HRV changes (LF/HF ratio) was lower in PWE. Two patients with idiopathic genetic epilepsies revealed generalized interictal epileptiform discharges only after, but not before exercise. However, post-exercise EEG measurement was three times longer than pre-exercise and those patients did not report exercise induced seizures in the history. Besides epileptogenesis, anti-seizure medications may also contribute to those autonomic differences.
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Affiliation(s)
| | - Jessica Coenen
- Institute of Sports Medicine, Paderborn University, Germany
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Wang C, Lin J, Niu Y, Wang W, Wen J, Lv L, Liu C, Du X, Zhang Q, Chen B, Cai J, Zhao Z, Liang D, Ji JS, Chen H, Chen R, Kan H. Impact of ozone exposure on heart rate variability and stress hormones: A randomized-crossover study. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126750. [PMID: 34339988 DOI: 10.1016/j.jhazmat.2021.126750] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/12/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
The biological mechanisms underlying the associations between atmospheric ozone exposure and adverse cardiometabolic outcomes are yet to be identified. Imbalanced autonomic nervous system (ANS) as well as activations of the sympatho-adrenomedullary (SAM) and hypothalamic-pituitary-adrenal (HPA) axes are among possible early biological responses triggered by ozone, and may eventually lead to cardiometabolic abnormalities. To determine whether acute ozone exposure causes ANS imbalance and increases the secretion of neuroendocrine stress hormones, we conducted a randomized, double-blind, crossover trial, under controlled 2-hour exposure to either ozone (200 ppb) or clean air with intermittent exercise among 22 healthy young adults. Here we found that, compared to clean air exposure, acute ozone exposure significantly decreased the high-frequency band of heart rate variability, even after adjusting for heart rate and pre-exposure to ambient air pollutants and meteorological factors. Ozone exposure also significantly increased the serum levels of stress hormones, including corticotrophin-releasing factor, adrenocorticotropic hormone, adrenaline, and noradrenaline. Metabolomics analysis showed that acute ozone exposure led to alterations in stress hormones, systemic inflammation, oxidative stress, and energy metabolism. Our results suggest that acute ozone exposure may trigger ANS imbalance and activate the HPA and SAM axes, offering potential biological explanations for the adverse cardiometabolic effects following acute ozone exposure.
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Affiliation(s)
- Cuiping Wang
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Jingyu Lin
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yue Niu
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Weidong Wang
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Jianfen Wen
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lili Lv
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cong Liu
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Xihao Du
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Qingli Zhang
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Bo Chen
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Jing Cai
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Zhuohui Zhao
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China
| | - Donghai Liang
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - John S Ji
- Nicholas School of the Environment, Duke University, Durham, NC, USA; Environmental Research Center, Duke Kunshan University, Kunshan, Jiangsu, China
| | - Honglei Chen
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI, USA
| | - Renjie Chen
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China.
| | - Haidong Kan
- Department of Environmental Health, School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, P.O. Box 249,130 Dong-An Road, Shanghai 200032, China; Children's Hospital of Fudan University, National Center for Children's Health, Shanghai, China.
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Vieluf S, Hasija T, Schreier PJ, El Atrache R, Hammond S, Mohammadpour Touserkani F, Sarkis RA, Loddenkemper T, Reinsberger C. Generalized tonic-clonic seizures are accompanied by changes of interrelations within the autonomic nervous system. Epilepsy Behav 2021; 124:108321. [PMID: 34624803 DOI: 10.1016/j.yebeh.2021.108321] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 11/21/2022]
Abstract
PURPOSE A seizure is a strong central stimulus that affects multiple subsystems of the autonomic nervous system (ANS), and results in different interactions across ANS modalities. Here, we aimed to evaluate whether multimodal peripheral ANS measures demonstrate interactions before and after seizures as compared to controls to provide the basis for seizure detection and forecasting based on peripheral ANS signals. METHODS Continuous electrodermal activity (EDA), heart rate (HR), peripheral body temperature (TEMP), and respiratory rate (RR) calculated based on blood volume pulse were acquired by a wireless multi-sensor device. We selected 45 min of preictal and 60 min of postictal data and time-matched segments for controls. Data were analyzed over 15-min windows. For unimodal analysis, mean values over each time window were calculated for all modalities and analyzed by Friedman's two-way analysis of variance. RESULTS Twenty-one children with recorded generalized tonic-clonic seizures (GTCS), and 21 age- and gender-matched controls were included. Unimodal results revealed no significant effect for RR and TEMP, but EDA (p = 0.002) and HR (p < 0.001) were elevated 0-15 min after seizures. The averaged bimodal correlation across all pairs of modalities changed for 15-min windows in patients with seizures. The highest correlations were observed immediately before (0.85) and the lowest correlation immediately after seizures. Overall, average correlations for controls were higher. SIGNIFICANCE Multimodal ANS changes related to GTCS occur within and across autonomic nervous system modalities. While unimodal changes were most prominent during postictal segments, bimodal correlations increased before seizures and decreased postictally. This offers a promising avenue for further research on seizure detection, and potentially risk assessment for seizure recurrence and sudden unexplained death in epilepsy.
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Affiliation(s)
- Solveig Vieluf
- Division of Epilepsy and Clinical Neurophysiology, Boston Children's Hospital, Harvard Medical School, Boston, USA; Institute of Sports Medicine, Paderborn University, Paderborn, Germany.
| | - Tanuj Hasija
- Signal and System Theory Group, Paderborn University, Paderborn, Germany
| | - Peter J Schreier
- Signal and System Theory Group, Paderborn University, Paderborn, Germany
| | - Rima El Atrache
- Division of Epilepsy and Clinical Neurophysiology, Boston Children's Hospital, Harvard Medical School, Boston, USA
| | - Sarah Hammond
- Division of Epilepsy and Clinical Neurophysiology, Boston Children's Hospital, Harvard Medical School, Boston, USA
| | - Fatemeh Mohammadpour Touserkani
- Division of Epilepsy and Clinical Neurophysiology, Boston Children's Hospital, Harvard Medical School, Boston, USA; Department of Neurology, SUNY Downstate Medical Center, Brooklyn, NY, USA
| | - Rani A Sarkis
- Division of Epilepsy, Dept. of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Tobias Loddenkemper
- Division of Epilepsy and Clinical Neurophysiology, Boston Children's Hospital, Harvard Medical School, Boston, USA
| | - Claus Reinsberger
- Institute of Sports Medicine, Paderborn University, Paderborn, Germany; Division of Epilepsy, Dept. of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
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Changes in the Allostatic Response to Whole-Body Cryotherapy and Static-Stretching Exercises in Chronic Fatigue Syndrome Patients vs. Healthy Individuals. J Clin Med 2021; 10:jcm10132795. [PMID: 34202023 PMCID: PMC8268724 DOI: 10.3390/jcm10132795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 06/22/2021] [Indexed: 12/19/2022] Open
Abstract
This study represents a comparison of the functional interrelation of fatigue and cognitive, cardiovascular and autonomic nervous systems in a group of Chronic Fatigue Syndrome (CFS) patients compared with those in healthy individuals at different stages of analysis: at baseline and after changes induced by whole-body cryotherapy (WBC) combined with a static-stretching (SS) program. The study included 32 patients (Fukuda criteria) and 18 healthy controls. Fatigue, cognitive, cardiovascular and autonomic function and arterial stiffness were measured before and after 10 sessions of WBC with SS. In the patients, a disturbance in homeostasis was observed. The network relationship based on differences before and after intervention showed comparatively higher stress and eccentricity in the CFS group: 50.9 ± 56.1 vs. 6.35 ± 8.72, p = 0.002, r = 0.28; and 4.8 ± 0.7 vs. 2.4 ± 1, p < 0.001, r = 0.46, respectively. Before and after intervention, in the CFS group increased fatigue was related to baroreceptor function, and baroreceptor function was in turn related to aortic stiffness, but no such relationships were observed in the control group. Differences in the network structure underlying the interrelation among the four measured criteria were observed in both groups, before the intervention and after ten sessions of whole cryotherapy with a static stretching exercise.
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The Interplay between Oxidative Stress, Exercise, and Pain in Health and Disease: Potential Role of Autonomic Regulation and Epigenetic Mechanisms. Antioxidants (Basel) 2020; 9:antiox9111166. [PMID: 33238564 PMCID: PMC7700330 DOI: 10.3390/antiox9111166] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress can be induced by various stimuli and altered in certain conditions, including exercise and pain. Although many studies have investigated oxidative stress in relation to either exercise or pain, the literature presents conflicting results. Therefore, this review critically discusses existing literature about this topic, aiming to provide a clear overview of known interactions between oxidative stress, exercise, and pain in healthy people as well as in people with chronic pain, and to highlight possible confounding factors to keep in mind when reflecting on these interactions. In addition, autonomic regulation and epigenetic mechanisms are proposed as potential mechanisms of action underlying the interplay between oxidative stress, exercise, and pain. This review highlights that the relation between oxidative stress, exercise, and pain is poorly understood and not straightforward, as it is dependent on the characteristics of exercise, but also on which population is investigated. To be able to compare studies on this topic, strict guidelines should be developed to limit the effect of several confounding factors. This way, the true interplay between oxidative stress, exercise, and pain, and the underlying mechanisms of action can be revealed and validated via independent studies.
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10
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Vieluf S, Scheer V, Hasija T, Schreier PJ, Reinsberger C. Multimodal approach towards understanding the changes in the autonomic nervous system induced by an ultramarathon. Res Sports Med 2019; 28:231-240. [PMID: 31522535 DOI: 10.1080/15438627.2019.1665522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: Running an ultramarathon can be considered as a multifaceted, intense stressor inducing changes within the autonomic nervous system (ANS). The aim of this study was to examine changes within and across ANS modalities in response to an ultramarathon.Methods: Thirteen runners (44.3 ± 5.9 years) completed a 65 km run. Electrodermal activity (EDA), heart rate (HR), and skin temperature measured at wrist (Temp), were recorded before and after running. Three-minute intervals were analysed. Mean values were compared by t-tests for dependent samples. Joint principal component analysis-canonical correlation analysis (PCA-CCA) and multiset CCA techniques were employed to measure the interactions between either any two or among all modalities.Results: HR (p < 0.01) and EDA (p < 0.01) increased, while Temp decreased (p < 0.01). PCA-CCA revealed one significant component (p < 0.05) for each modality pair in pre and post measures. Component strength increased from pre (mean = 0.73) to post (mean = 0.92) test. Multiset CCA supported the assumption of increasing strength of correlations across modalities.Conclusion: Ultramarathon, an intense physical stressor, increases correlations across modalities pointing towards a reorganization of central ANS control to restore dynamic balance after physical load. This characterization of ANS-states might offer new avenues for training control.
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Affiliation(s)
- Solveig Vieluf
- Institute of Sports Medicine, Paderborn University, Paderborn, Germany
| | - Volker Scheer
- Institute of Sports Medicine, Paderborn University, Paderborn, Germany.,Ultra Sports Science Foundation, Pierre-Bénite, France
| | - Tanuj Hasija
- Signal and System Theory Group, Paderborn University, Paderborn, Germany
| | - Peter J Schreier
- Signal and System Theory Group, Paderborn University, Paderborn, Germany
| | - Claus Reinsberger
- Institute of Sports Medicine, Paderborn University, Paderborn, Germany
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Generalized Poincaré plots analysis of heart period dynamics in different physiological conditions: Trained vs. untrained men. PLoS One 2019; 14:e0219281. [PMID: 31276529 PMCID: PMC6611602 DOI: 10.1371/journal.pone.0219281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 06/21/2019] [Indexed: 02/02/2023] Open
Abstract
Background Recently we proposed a new method called generalized Poincaré plot (gPp) analysis which gave a new insight into the pattern of neurocaridac control. In this study we examined potential of gPp method to reveal changes in cardiac neural control in young athletes during three conditions: supine rest, running and relaxation, with respect to untrained subjects. Methods This method is based on the quantification of Pearson’s correlation coefficients r(j, k), between symmetrical (j = k) and asymmetrical summed j previous and k following RR intervals up to the 100th order (j,k≤100). Results Differences between groups were obtained at all levels of this analysis. The main result is the significant difference of NAI, normalized index of asymmetry, between groups in running, which was originated in different positions of local maxima of r(j, k). Compared with untrained subjects, these findings indicate modified neural control and altered intrinsic heart rate behavior in athletes which are related to some kind of memory mechanism between RR intervals. Conclusion Obtained results provide great potential of gPp method analysis in the recognition of changes in neurocardiac control in healthy subjects. Further studies are needed for identification of altered cardiac regulatory mechanisms whose background may be useful in the evaluation of genesis of athletes neurocardiovascular pathology.
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