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Alansare AB, Gibbs BB, Catov JM, Jennings JR, Kline CE, Nagle E, Holzman C. Association of Physical Activity and Sedentary Time with Cardio-Autonomic Regulation in Women. J Womens Health (Larchmt) 2022; 31:600-608. [PMID: 34648723 PMCID: PMC9063150 DOI: 10.1089/jwh.2021.0243] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Low moderate-to-vigorous-intensity physical activity (MVPA) and high sedentary time (ST) may contribute to cardiovascular disease (CVD) risk in women, perhaps via cardiac autonomic dysregulation. We examined associations of total, leisure, and occupational MVPA and ST with cardiac autonomic regulation in women. Methods: Data were from 522 women (age = 37.7 ± 5.7 years; 59%white) who participated in the follow-up study of the Pregnancy Outcomes and Community Health Study (between 2011 and 2014). MVPA and ST (hours/day) were self-reported using the Modifiable Activity Questionnaire. Cardiac autonomic regulation was assessed by calculating heart rate variability (HRV) indices (resting heart rate, natural logarithm standard deviation of normal R-R intervals; lnSDNN [total variability], natural logarithm root mean square of the successive differences; lnRMSSD [cardiac parasympathetic activity]) with Kubios software from a 5-minute, seated electrocardiogram. Progressive generalized linear models evaluated associations of total, leisure, and occupational MVPA and ST with HRV indices while adjusting for confounders (demographics, health-related factors), and then potential mediators (clinical variables). A final model evaluated the relationship between ST and HRV stratified by MVPA level. Results: Adjusting for confounders, total and leisure MVPA were associated with favorable lnSDNN (B = 0.027 [p = 0.014] and B = 0.074 [p = 0.009], respectively) and lnRMSSD (B = 0.036 [p = 0.015] and B = 0.075 [p = 0.043], respectively). Adjustment for mediators tended to strengthen the observed significant associations. No associations were found between occupational MVPA or any ST measure with HRV indices (p > 0.05). Neither MVPA nor ST were associated with heart rate. When stratified by MVPA level, leisure ST was associated with unfavorable lnRMSSD (B = -0.041, [p = 0.042]) only among women who did not meet leisure MVPA recommendations. Conclusion: Cardiac autonomic dysregulation may be a mechanism through which low leisure MVPA and, among low-active women, high leisure ST contribute to CVD risk among women.
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Affiliation(s)
- Abdullah Bandar Alansare
- Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi Arabia
| | - Bethany Barone Gibbs
- Department of Health and Human Development, School of Education, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Janet M. Catov
- Department of Obstetrics, Gynecology, and Reproductive Sciences and University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - J. Richard Jennings
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Christopher E. Kline
- Department of Health and Human Development, School of Education, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Elizabeth Nagle
- Department of Health and Human Development, School of Education, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Claudia Holzman
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA
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Gouws CA, McKune A, Tee N, Somerset S, Mortazavi R. Prickly pear juice consumption after fat intake affects postprandial heart rate variability but not traditional risk factors of cardiovascular disease in healthy men. Nutrition 2022; 96:111555. [DOI: 10.1016/j.nut.2021.111555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 10/21/2021] [Accepted: 11/21/2021] [Indexed: 12/20/2022]
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Balint EM, Angerer P, Guendel H, Marten-Mittag B, Jarczok MN. Stress Management Intervention for Leaders Increases Nighttime SDANN: Results from a Randomized Controlled Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:3841. [PMID: 35409525 PMCID: PMC8997599 DOI: 10.3390/ijerph19073841] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/20/2022] [Accepted: 03/21/2022] [Indexed: 02/01/2023]
Abstract
Stress management interventions aim to reduce the disease risk that is heightened by work stress. Possible pathways of risk reduction include improvements in the autonomous nervous system, which is indexed by the measurement of heart rate variability (HRV). A randomized controlled trial on improving stress management skills at work was conducted to investigate the effects of intervention on HRV. A total of 174 lower management employees were randomized into either the waiting list control group (CG) or the intervention group (IG) receiving a 2-day stress management training program and another half-day booster after four and six months. In the trial, 24 h HRV was measured at baseline and after 12 months. Heart rate (HR), root mean square of successive differences (RMSSD), standard deviation of normal-to-normal intervals (SDNN), and standard deviation of the average of normal-to-normal intervals (SDANN) were calculated for 24 h and nighttime periods. Age-adjusted multilevel mixed effects linear regressions with unstructured covariance, time as a random coefficient, and time × group interaction with the according likelihood-ratio tests were calculated. The linear mixed-effect regression models showed neither group effects between IG and CG at baseline nor time effects between baseline and follow-up for SDANN (24 h), SDNN (24 h and nighttime), RMSSD (24 h and nighttime), and HR (24 h and nighttime). Nighttime SDANN significantly improved in the intervention group (z = 2.04, p = 0.041) compared to the control group. The objective stress axis measures (SDANN) showed successful stress reduction due to the training. Nighttime SDANN was strongly associated with minimum HR. Though the effects were small and only visible at night, it is highly remarkable that 3 days of intervention achieved a measurable effect considering that stress is only one of many factors that can influence HR and HRV.
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Affiliation(s)
- Elisabeth Maria Balint
- Department of Psychosomatic Medicine and Psychotherapy, Ulm University Medical Center, 89081 Ulm, Germany; (E.M.B.); (M.N.J.)
- Burnout Section, Privatklinik Meiringen, 3860 Meiringen, Switzerland
| | - Peter Angerer
- Institute of Occupational, Social and Environmental Medicine, Centre for Health and Society, Faculty of Medicine, Heinrich Heine University, 40204 Düsseldorf, Germany;
| | - Harald Guendel
- Department of Psychosomatic Medicine and Psychotherapy, Ulm University Medical Center, 89081 Ulm, Germany; (E.M.B.); (M.N.J.)
| | - Birgitt Marten-Mittag
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum rechts der Isar, Technische Universität Muenchen, 81675 Munich, Germany;
| | - Marc N. Jarczok
- Department of Psychosomatic Medicine and Psychotherapy, Ulm University Medical Center, 89081 Ulm, Germany; (E.M.B.); (M.N.J.)
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The Evaluation of Biomarkers of Physical Activity on Stress Resistance and Wellness. Appl Psychophysiol Biofeedback 2022; 47:121-129. [PMID: 35296973 PMCID: PMC9098580 DOI: 10.1007/s10484-022-09538-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2022] [Indexed: 12/02/2022]
Abstract
Physical activity can improve health as well as reduce stress and the risk of developing several widespread diseases. However, there exists no accepted standard biomedical examination-method for stress evaluation. The purpose of this study was to investigate the effect of regular physical activity on stress and wellness as well as the evaluation of potential biomarkers in this field. This study included 105 people (mean age = 36.57 ± 1.4 years) who were randomly assigned into the exercise group 1 (EG-1) (n = 41), the exercise group 2 (EG-2) (n = 30), and the control group (CG) (n = 34). Measurements of stress and wellness were obtained by Multiscan BC-OXI before and after experimental period. This device presents a multifrequency segmental body composition 3D analyser with digital pulse oximeter. The key indicators of stress as well as for wellness were significantly improved in the EG-1. Parasympathetic activity showed significant changes as potential stress biomarker. Statistically significant gender differences were not observed in the comparable groups. The results suggest that the stress resistance and well-being significantly improved in the EG-1 due to regular physical activity. However, further research is necessary to determine effects of physical activity on integral health indicators.
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Quero-Calero CD, Abellán-Aynés O, Manonelles P, Ortega E. The Consumption of a Synbiotic Does Not Affect the Immune, Inflammatory, and Sympathovagal Parameters in Athletes and Sedentary Individuals: A Triple-Blinded, Randomized, Place-bo-Controlled Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19063421. [PMID: 35329107 PMCID: PMC8954949 DOI: 10.3390/ijerph19063421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/01/2022] [Accepted: 03/12/2022] [Indexed: 02/05/2023]
Abstract
This investigation aimed to identify the effect of a synbiotic in athletes and sedentary people, and their potential varying responses regarding the immune system, autonomic regulation and body composition. Twenty-seven participants were involved in the protocol: 14 sedentary and 13 semi-professional soccer players. Both groups were randomly divided into an experimental and control group. A synbiotic (Gasteel Plus®, Heel España S.A.U.) comprising a blend of probiotic strains, including Bifidobacterium lactis CBP-001010, Lactobacillus rhamnosus CNCM I-4036, and Bifidobacterium longum ES1, was administered to the experimental group, and a placebo was given to the control group for 30 days. Heart rate variability, body composition, and immune/inflammatory cytokines were determined. Statistically significant differences were observed between sedentary individuals and athletes in heart rate variability but not between the experimental and control groups. A difference between the athletic and sedentary group is observed with the influence of training on the effects of the synbiotic on the levels of fat mass and body-fold sum. No significant differences were shown in cytokines after the protocol study. No changes occur with the synbiotic treatment between the athlete and sedentary groups, while no negative effect was produced. Further research will be necessary to see chronic effects in the analyzed biomarkers.
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Affiliation(s)
- Carmen Daniela Quero-Calero
- Faculty of Sport, Catholic University of Murcia, 30107 Murcia, Spain;
- International Chair of Sports Medicine, Catholic University of Murcia, 30107 Murcia, Spain;
| | - Oriol Abellán-Aynés
- Faculty of Sport, Catholic University of Murcia, 30107 Murcia, Spain;
- International Chair of Sports Medicine, Catholic University of Murcia, 30107 Murcia, Spain;
- Correspondence:
| | - Pedro Manonelles
- International Chair of Sports Medicine, Catholic University of Murcia, 30107 Murcia, Spain;
| | - Eduardo Ortega
- Grupo de Investigación en Inmunofisiología, Instituto Universitario de Investigación Biosanitaria de Extremadura (INUBE), University of Extremadura, 06006 Badajo, Spain;
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Kemp AH, Tree J, Gracey F, Fisher Z. Editorial: Improving Wellbeing in Patients With Chronic Conditions: Theory, Evidence, and Opportunities. Front Psychol 2022; 13:868810. [PMID: 35360566 PMCID: PMC8964137 DOI: 10.3389/fpsyg.2022.868810] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 02/14/2022] [Indexed: 01/28/2023] Open
Affiliation(s)
- Andrew H. Kemp
- School of Psychology, Faculty of Medicine, Health & Life Science, Swansea University, Swansea, United Kingdom
- Regional Neuropsychology and Community Brain Injury Service, Morriston Hospital, Swansea, United Kingdom
| | - Jeremy Tree
- School of Psychology, Faculty of Medicine, Health & Life Science, Swansea University, Swansea, United Kingdom
- Regional Neuropsychology and Community Brain Injury Service, Morriston Hospital, Swansea, United Kingdom
| | - Fergus Gracey
- Department of Clinical Psychology and Psychological Therapies, Norwich Medical School, Univeristy of East Anglia, Norwich, United Kingdom
| | - Zoe Fisher
- Regional Neuropsychology and Community Brain Injury Service, Morriston Hospital, Swansea, United Kingdom
- Health and Wellbeing Academy, Faculty of Medicine, Health and Life Science, Swansea University, Swansea, United Kingdom
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Lin IM, Lin PY, Fan SY. The Effects of Heart Rate Variability (HRV) Biofeedback on HRV Reactivity and Recovery During and After Anger Recall Task for Patients with Coronary Artery Disease. Appl Psychophysiol Biofeedback 2022; 47:131-142. [PMID: 35262874 DOI: 10.1007/s10484-022-09539-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2022] [Indexed: 11/24/2022]
Abstract
Patients with coronary artery disease (CAD) often experience anger events before cardiovascular events. Anger is a psychological risk factor and causes underlying psychophysiological mechanisms to lose balance of the autonomic nervous system (ANS). The heart rate variability (HRV) was the common index for ANS regulation. It has been confirmed that heart rate variability biofeedback (HRV-BF) restored ANS balance in patients with CAD during the resting state. However, the effects of HRV-BF during and after the anger event remain unknown. This study aimed to examine the effects of HRV-BF on ANS reactivity and recovery during the anger recall task in patients with CAD. This study was a randomized control trial with a wait-list control group design, with forty patients in the HRV-BF group (for six sessions) and 44 patients in the control group. All patients received five stages of an anger recall task, including baseline, neutral recall task, neutral recovery, anger recall task, and anger recovery. HRV reactivity in the HRV-BF group at the post-test was lower than that in the control group. HRV recovery at the post-test in the HRV-BF group was higher than that in the control group. The HRV-BF reduced ANS reactivity during anger events and increased ANS recovery after anger events for CAD patients. The possible mechanisms of HRV-BF may increase total HRV, ANS regulation, and baroreflex activation at anger events for patients with CAD, and may be a suitable program for cardiac rehabilitation.
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Affiliation(s)
- I-Mei Lin
- Department of Psychology, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Division of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Pei-Yun Lin
- Department of Psychology, Kaohsiung Medical University, Kaohsiung, Taiwan.,Ministry of Health and Welfare Yuli Hospital, Hualien, Taiwan
| | - Sheng-Yu Fan
- Institute of Gerontology, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City, 701, Taiwan.
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Freire APCF, Lira FS, Morano AEVA, Pereira T, Coelho-E-Silva MJ, Caseiro A, Christofaro DGD, Marchioto Júnior O, Dorneles GP, Minuzzi LG, Pinho RA, Silva BSDA. Role of Body Mass and Physical Activity in Autonomic Function Modulation on Post-COVID-19 Condition: An Observational Subanalysis of Fit-COVID Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:2457. [PMID: 35206647 PMCID: PMC8875183 DOI: 10.3390/ijerph19042457] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/15/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023]
Abstract
The harmful effects of coronavirus disease 2019 (COVID-19) can reach the autonomic nervous system (ANS) and endothelial function. Therefore, the detrimental multiorgan effects of COVID-19 could be induced by deregulations in ANS that may persist after the acute SARS-CoV-2 infection. Additionally, investigating the differences in ANS response in overweight/obese, and physically inactive participants who had COVID-19 compared to those who did not have the disease is necessary. The aim of the study was to analyze the autonomic function of young adults after mild-to-moderate infection with SARS-CoV-2 and to assess whether body mass index (BMI) and levels of physical activity modulates autonomic function in participants with and without COVID-19. Patients previously infected with SARS-CoV-2 and healthy controls were recruited for this cross-sectional observational study. A general anamnesis was taken, and BMI and physical activity levels were assessed. The ANS was evaluated through heart rate variability. A total of 57 subjects were evaluated. Sympathetic nervous system activity in the post-COVID-19 group was increased (stress index; p = 0.0273). They also presented lower values of parasympathetic activity (p < 0.05). Overweight/obese subjects in the post-COVID-19 group presented significantly lower parasympathetic activity and reduced global variability compared to non-obese in control group (p < 0.05). Physically inactive subjects in the post-COVID-19 group presented significantly higher sympathetic activity than active subjects in the control group. Parasympathetic activity was significantly increased in physically active subjects in the control group compared to the physically inactive post-COVID-19 group (p < 0.05). COVID-19 promotes changes in the ANS of young adults, and these changes are modulated by overweight/obesity and physical activity levels.
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Affiliation(s)
- Ana Paula Coelho Figueira Freire
- Department of Health Sciences, Central Washington University Ellensburg, Ellensburg, WA 98926, USA
- Physiotherapy Department, Universidade do Oeste Paulista (UNOESTE), Presidente Prudente 19050-920, Brazil
| | - 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; (A.E.v.A.M.); (O.M.J.); (L.G.M.); (B.S.d.A.S.)
| | - 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; (A.E.v.A.M.); (O.M.J.); (L.G.M.); (B.S.d.A.S.)
| | - Telmo Pereira
- Polytechnic of Coimbra, ESTESC, Laboratory Biomedical Sciences, 3046-854 Coimbra, Portugal; (T.P.); (A.C.)
- Molecular Physical-Chemistry R & D Unit, Faculty of Science and Technology, University of Coimbra, 3004-535 Coimbra, Portugal
- Laboratory for Applied Health Research (LabinSaúde), 3046-854 Coimbra, Portugal
| | - Manuel-João Coelho-E-Silva
- Faculty of Sport Science and Physiucal Education, University of Coimbra, CIDAF, 3000-456 Coimbra, Portugal;
| | - Armando Caseiro
- Polytechnic of Coimbra, ESTESC, Laboratory Biomedical Sciences, 3046-854 Coimbra, Portugal; (T.P.); (A.C.)
- Molecular Physical-Chemistry R & D Unit, Faculty of Science and Technology, University of Coimbra, 3004-535 Coimbra, Portugal
- Laboratory for Applied Health Research (LabinSaúde), 3046-854 Coimbra, Portugal
| | - Diego Giulliano Destro Christofaro
- 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; (A.E.v.A.M.); (O.M.J.); (L.G.M.); (B.S.d.A.S.)
| | - Gilson Pires Dorneles
- Cellular and Molecular Immunology Laboratory, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre 90050-170, Brazil;
| | - Luciele Guerra Minuzzi
- Exercise and Immunometabolism Research Group, Postgraduate Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente 19060-900, Brazil; (A.E.v.A.M.); (O.M.J.); (L.G.M.); (B.S.d.A.S.)
| | - 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; (A.E.v.A.M.); (O.M.J.); (L.G.M.); (B.S.d.A.S.)
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Effects of Long-Term Regular Continuous and Intermittent Walking on Oxidative Stress, Metabolic Profile, Heart Rate Variability, and Blood Pressure in Older Adults with Hypertension. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2022; 2022:5942947. [PMID: 35140794 PMCID: PMC8820939 DOI: 10.1155/2022/5942947] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 01/04/2022] [Accepted: 01/18/2022] [Indexed: 12/14/2022]
Abstract
It is documented that regular exercise is beneficial for improving the antioxidant system, metabolic system, cardiac autonomic function, and blood pressure in those with hypertension. In this regard, low-intensity exercise is recommended for older adults, particularly those with chronic diseases. This study aimed to compare the effects of long-term regular continuous walking with intermittent walking on oxidative stress, metabolic profile, heart rate variability, and blood pressure in older adults with hypertension. Forty-three participants with hypertension aged 60–80 years were randomly divided into the continuous or intermittent walking (CON or INT) groups. Participants in the CON group walked for 30 min, 3 days/week for 12 weeks. Participants in the INT group split 30 min walking into 3 identical sessions punctuated by a 1 min rest after each session, 3 days/week for 12 weeks. Antioxidant and oxidative stress markers, metabolic markers, heart rate variability, and blood pressure were evaluated before and after the exercise program. Glutathione (GSH), GSH to GSH disulfide (GSSG) ratio, and total GSH increased significantly, and GSSG and malondialdehyde decreased significantly in both groups (
) without significant differences between groups. Triglycerides, ratio of total cholesterol to high-density lipoprotein cholesterol, and atherosclerogenic index were significantly lower in the CON group than those in the INT group (
). The standard deviation of the NN intervals and root mean square of the successive differences were significantly higher, and low-frequency power was significantly lower in the INT group than that in the CON group (
). No significant changes in blood pressure were noted in both groups, and nor were there any significant differences between groups. Long-term regular continuous and intermittent walking may comparably increase antioxidants, reduce oxidative stress, and be beneficial for improving important blood pressure-related outcomes, including metabolic profile or cardiac autonomic function in older adults with hypertension.
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Low heart rate variability from 10-s electrocardiograms is associated with development of non-alcoholic fatty liver disease. Sci Rep 2022; 12:1062. [PMID: 35058515 PMCID: PMC8776891 DOI: 10.1038/s41598-022-05037-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 12/28/2021] [Indexed: 12/14/2022] Open
Abstract
Reduced heart rate variability (HRV) is reflective of autonomic imbalance. However, its impact on non-alcoholic fatty liver disease (NAFLD) is unknown. We investigated the association between 10-s HRV and incident NAFLD. A cohort of 154,286 Korean adults with no NAFLD at baseline were followed up. 10-s electrocardiograms were used to estimate two time-domain HRV, the standard deviation of normal-to-normal intervals (SDNN) and the root mean square of successive differences in RR intervals (RMSSD). Hepatic steatosis (HS) and liver fibrosis were assessed using ultrasonography and the fibrosis-4 index (FIB-4). A total of 27,279 incident HS (median follow up of 4.2 years) and 1250 incident HS plus high FIB-4 (median follow up of 4.2 years) cases were identified at follow-up. The multivariable adjusted hazard ratios (aHRs) (95% confidence intervals [CIs]) in a model with time-dependent variables for incident HS, comparing the lowest quintile to the highest and reference quintile of the RMSSD, was 1.43 (1.37-1.49), and the corresponding HR for incident HS plus intermediate/high FIB-4 was 1.70 (1.35-2.15). Similarly, SDNN was inversely associated with incident HS and HS plus intermediate/high FIB-4. The results were similar using the NAFLD fibrosis score. Autonomic imbalance assessed by HRV may help to identify individuals at a high risk of HS and its progression and warrant further studies.
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Palamarchuk OS, Petrik KY, Nemesh MI, Krichfalushii OP, Rishko OA, Feketa VP. CORRECTION OF AUTONOMIC DYSFUNCTION IN OVERWEIGHT CHILDREN BY NORMALIZING BODY COMPOSITION. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:2386-2391. [PMID: 36472265 DOI: 10.36740/wlek202210112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE The aim: To investigated the effect of a 3-month body weight correction program on the functional state of the ANS in children of primary school age who had an increased body mass index and signs of autonomic dysfunction. PATIENTS AND METHODS Materials and methods: 82 children aged 9 to 11 were examined. During 3 months, all examinees underwent a body weight correction course. Body composition was mea¬sured by the bioimpedance method using the body composition analyzer «TANITA-BC-601» (Japan). The functional state of autonomic regulation was assessed using heart rate variability (HRV) indicators obtained by recording standard 5-minute ECG intervals using the computer hardware and software complex "CARDIOLAB" (XAI-MEDICA, Ukraine). RESULTS Results: Statistical processing of HRV indicators showed that 51 children (62.2%) had signs of autonomic dysfunction. In the first group, there was a statistically significant decrease in body weight (from 47.33±4.62 to 44.12±3.96), BMI (from 28.15±2.64 to 26.63±2.87), TFC (from 33.54±3.68 to 30.89±2.81), VF (from 7.056±1.814 to 4.817±2.017) with a simultaneous statistically probable increase in the FFM index (from 60.27±2.47 to 63.15±2,38). According to the time domain indicators of HRV, children in first group have increased the TP of autonomous heart rhythm regulation, as indicated by a statistically significant increase in SDNN from 38.43±6.39 ms to 51.65±7.19 ms (р<0.05); the activity of the sympathetic link of the ANS decreased according to AMo from 41.23±6.17% to 34.29±5.83% (р<0.05) and the intensity of autonomic regulation according to IS, which decreased from 116.3±31,6 units to 81.2±29.1 units (p<0.05). CONCLUSION Conclusions: 3-month body weight correction program led to the elimination of signs of autonomic dysfunction in 43.9% of the examined persons.
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Effects of Mixed of a Ketogenic Diet in Overweight and Obese Women with Polycystic Ovary Syndrome. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312490. [PMID: 34886216 PMCID: PMC8656706 DOI: 10.3390/ijerph182312490] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a commonly occurring endocrine disorder characterized by hirsutism, anovulation, and polycystic ovaries. Often comorbid with insulin resistance, dyslipidemia, and obesity, it also carries significant risk for the development of cardiovascular and metabolic sequelae, including diabetes and metabolic syndrome. The relationship between central obesity and the development of insulin resistance is widely verified. Adipose tissue excess and the coexistent dysregulation of adipocyte functions directly contribute to the pathogenesis of the metabolic complications observed in women with PCOS. In the light of these evidence, the most therapeutic option prescribed to obese women with PCOS, regardless of the phenotype e from the severity of clinical expression, is lifestyle correction by diet and physical activity. The aim of this study is to evaluate the beneficial effects of ketogenic diet in 17 obese women with PCOS. Our results showed that the ketogenic diet inducing therapeutic ketosis, improves the anthropometric and many biochemical parameters such as LH, FSH, SHBG, insulin sensitivity and HOMA index. In addition, it induces a reduction in androgenic production, whereas the contextual reduction of fat mass reduced the acyclic production of estrogens deriving from the aromatization in the adipose tissue of the androgenic excess, with an improvement of the LH/FSH ratio. This is the first study on the effects of the ketogenic diet on PCOS, however, further studies are needed to elucidate the mechanism underlying ketogenic diet effects.
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van den Brink W, Bloem R, Ananth A, Kanagasabapathi T, Amelink A, Bouwman J, Gelinck G, van Veen S, Boorsma A, Wopereis S. Digital Resilience Biomarkers for Personalized Health Maintenance and Disease Prevention. Front Digit Health 2021; 2:614670. [PMID: 34713076 PMCID: PMC8521930 DOI: 10.3389/fdgth.2020.614670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/09/2020] [Indexed: 12/26/2022] Open
Abstract
Health maintenance and disease prevention strategies become increasingly prioritized with increasing health and economic burden of chronic, lifestyle-related diseases. A key element in these strategies is the empowerment of individuals to control their health. Self-measurement plays an essential role in achieving such empowerment. Digital measurements have the advantage of being measured non-invasively, passively, continuously, and in a real-world context. An important question is whether such measurement can sensitively measure subtle disbalances in the progression toward disease, as well as the subtle effects of, for example, nutritional improvement. The concept of resilience biomarkers, defined as the dynamic evaluation of the biological response to an external challenge, has been identified as a viable strategy to measure these subtle effects. In this review, we explore the potential of integrating this concept with digital physiological measurements to come to digital resilience biomarkers. Additionally, we discuss the potential of wearable, non-invasive, and continuous measurement of molecular biomarkers. These types of innovative measurements may, in the future, also serve as a digital resilience biomarker to provide even more insight into the personal biological dynamics of an individual. Altogether, digital resilience biomarkers are envisioned to allow for the measurement of subtle effects of health maintenance and disease prevention strategies in a real-world context and thereby give personalized feedback to improve health.
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Affiliation(s)
- Willem van den Brink
- Department of Microbiology and Systems Biology, Netherlands Organization for Applied Scientific Research (TNO), Zeist, Netherlands
| | - Robbert Bloem
- Department of Environmental Modeling Sensing and Analysis, Netherlands Organization for Applied Scientific Research (TNO), Utrecht, Netherlands
| | - Adithya Ananth
- Department of Optics, Netherlands Organization for Applied Scientific Research (TNO), Delft, Netherlands
| | - Thiru Kanagasabapathi
- Holst Center, Netherlands Organization for Applied Scientific Research (TNO), Eindhoven, Netherlands
| | - Arjen Amelink
- Department of Optics, Netherlands Organization for Applied Scientific Research (TNO), Delft, Netherlands
| | - Jildau Bouwman
- Department of Microbiology and Systems Biology, Netherlands Organization for Applied Scientific Research (TNO), Zeist, Netherlands
| | - Gerwin Gelinck
- Holst Center, Netherlands Organization for Applied Scientific Research (TNO), Eindhoven, Netherlands
| | - Sjaak van Veen
- Department of Environmental Modeling Sensing and Analysis, Netherlands Organization for Applied Scientific Research (TNO), Utrecht, Netherlands
| | - Andre Boorsma
- Department of Microbiology and Systems Biology, Netherlands Organization for Applied Scientific Research (TNO), Zeist, Netherlands
| | - Suzan Wopereis
- Department of Microbiology and Systems Biology, Netherlands Organization for Applied Scientific Research (TNO), Zeist, Netherlands
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Debnath S, Levy TJ, Bellehsen M, Schwartz RM, Barnaby DP, Zanos S, Volpe BT, Zanos TP. A method to quantify autonomic nervous system function in healthy, able-bodied individuals. Bioelectron Med 2021; 7:13. [PMID: 34446089 PMCID: PMC8394599 DOI: 10.1186/s42234-021-00075-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 07/20/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The autonomic nervous system (ANS) maintains physiological homeostasis in various organ systems via parasympathetic and sympathetic branches. ANS function is altered in common diffuse and focal conditions and heralds the beginning of environmental and disease stresses. Reliable, sensitive, and quantitative biomarkers, first defined in healthy participants, could discriminate among clinically useful changes in ANS function. This framework combines controlled autonomic testing with feature extraction during physiological responses. METHODS Twenty-one individuals were assessed in two morning and two afternoon sessions over two weeks. Each session included five standard clinical tests probing autonomic function: squat test, cold pressor test, diving reflex test, deep breathing, and Valsalva maneuver. Noninvasive sensors captured continuous electrocardiography, blood pressure, breathing, electrodermal activity, and pupil diameter. Heart rate, heart rate variability, mean arterial pressure, electrodermal activity, and pupil diameter responses to the perturbations were extracted, and averages across participants were computed. A template matching algorithm calculated scaling and stretching features that optimally fit the average to an individual response. These features were grouped based on test and modality to derive sympathetic and parasympathetic indices for this healthy population. RESULTS A significant positive correlation (p = 0.000377) was found between sympathetic amplitude response and body mass index. Additionally, longer duration and larger amplitude sympathetic and longer duration parasympathetic responses occurred in afternoon testing sessions; larger amplitude parasympathetic responses occurred in morning sessions. CONCLUSIONS These results demonstrate the robustness and sensitivity of an algorithmic approach to extract multimodal responses from standard tests. This novel method of quantifying ANS function can be used for early diagnosis, measurement of disease progression, or treatment evaluation. TRIAL REGISTRATION This study registered with Clinicaltrials.gov , identifier NCT04100486 . Registered September 24, 2019, https://www.clinicaltrials.gov/ct2/show/NCT04100486 .
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Affiliation(s)
- Shubham Debnath
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Todd J Levy
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Mayer Bellehsen
- Department of Psychiatry, Unified Behavioral Health Center and World Trade Center Health Program, Northwell Health, Bay Shore, NY, USA
| | - Rebecca M Schwartz
- Department of Occupational Medicine, Epidemiology and Prevention, Northwell Health, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Center for Disaster Health, Trauma, and Resilience, New York, NY, USA
- Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Douglas P Barnaby
- Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
- Northwell Health, Institute of Health Innovations and Outcomes Research, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Stavros Zanos
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Bruce T Volpe
- Northwell Health, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
- Northwell Health, Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Theodoros P Zanos
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY, 11030, USA.
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Alansare AB, Bates LC, Stoner L, Kline CE, Nagle E, Jennings JR, Hanson ED, Faghy MA, Gibbs BB. Associations of Sedentary Time with Heart Rate and Heart Rate Variability in Adults: A Systematic Review and Meta-Analysis of Observational Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168508. [PMID: 34444256 PMCID: PMC8391190 DOI: 10.3390/ijerph18168508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 01/18/2023]
Abstract
PURPOSE To evaluate if sedentary time (ST) is associated with heart rate (HR) and variability (HRV) in adults. METHODS We systematically searched PubMed and Google Scholar through June 2020. Inclusion criteria were observational design, humans, adults, English language, ST as the exposure, resting HR/HRV as the outcome, and (meta-analysis only) availability of the quantitative association with variability. After qualitative synthesis, meta-analysis used inverse variance heterogeneity models to estimate pooled associations. RESULTS Thirteen and eight articles met the criteria for the systematic review and meta-analysis, respectively. All studies were cross-sectional and few used gold standard ST or HRV assessment methodology. The qualitative synthesis suggested no associations between ST and HR/HRV. The meta-analysis found a significant association between ST and HR (β = 0.24 bpm per hour ST; CI: 0.10, 0.37) that was stronger in males (β = 0.36 bpm per hour ST; CI: 0.19, 0.53). Pooled associations between ST and HRV indices were non-significant (p > 0.05). Substantial heterogeneity was detected. CONCLUSIONS The limited available evidence suggests an unfavorable but not clinically meaningful association between ST and HR, but no association with HRV. Future longitudinal studies assessing ST with thigh-based monitoring and HRV with electrocardiogram are needed.
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Affiliation(s)
- Abdullah Bandar Alansare
- Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, King Khalid Rd, Riyadh 80200, Saudi Arabia
- Correspondence: ; Tel.: +966-555061381; Fax: +966-11-806-3370
| | - Lauren C. Bates
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC 27599, USA; (L.C.B.); (L.S.); (E.D.H.)
| | - Lee Stoner
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC 27599, USA; (L.C.B.); (L.S.); (E.D.H.)
| | - Christopher E. Kline
- Department of Health and Human Development, School of Education, University of Pittsburgh, 140 Trees Hall, Pittsburgh, PA 15261, USA; (C.E.K.); (E.N.); (B.B.G.)
| | - Elizabeth Nagle
- Department of Health and Human Development, School of Education, University of Pittsburgh, 140 Trees Hall, Pittsburgh, PA 15261, USA; (C.E.K.); (E.N.); (B.B.G.)
| | - J. Richard Jennings
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA 15219, USA;
| | - Erik D. Hanson
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC 27599, USA; (L.C.B.); (L.S.); (E.D.H.)
| | - Mark A. Faghy
- Human Sciences Research Centre, University of Derby, Derby DE22 1GB, UK;
| | - Bethany Barone Gibbs
- Department of Health and Human Development, School of Education, University of Pittsburgh, 140 Trees Hall, Pittsburgh, PA 15261, USA; (C.E.K.); (E.N.); (B.B.G.)
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Polito R, Valenzano A, Scarinci A, Villano I, Monda M, Messina A, Cibelli G, Porro C, La Torre E, Pisanelli D, Moscatelli F, Messina G, Monda V. Very Low-Calorie Ketogenic Diet Modulates the Autonomic Nervous System Activity through Salivary Amylase in Obese Population Subjects. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168475. [PMID: 34444230 PMCID: PMC8393849 DOI: 10.3390/ijerph18168475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 12/14/2022]
Abstract
In obesity, to reduce visceral adipose tissue (VAT), caloric restriction is a valid strategy. Salivary amylase is an enzyme that cleaves large starch carbohydrates molecules and its production is modulated by the central nervous system. In addition, heart rate variability (HRV) is simply a measure of the variation in time between each heartbeat. This variation is controlled by the autonomic nervous system. In the light of this evidence, the aim of this study is to characterize the effect of a very low-calorie ketogenic diet (VLCKD) on the autonomic nervous system in obese patients. Twenty subjects affected by obesity were recruited before and after 8 weeks of VLCKD intervention to evaluate salivary amylase by the ELISA test and HRV analysis. These parameters significantly increased after dietary treatment, and positively correlate to each other. VLCKD exerts a positive effect on salivary amylase and HRV, ameliorating body composition and biochemical features. In brief, this dietary intervention improves the autonomic nervous system activity. This is the first study about the effects of VLCKD upon the autonomic nervous system, but further studies are needed to elucidate the mechanism undergone VLCKD effects.
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Affiliation(s)
- Rita Polito
- Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Anna Valenzano
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Alessia Scarinci
- Department of Education, Psychology, Communication, University of Bari, 70121 Bari, Italy;
| | - Ines Villano
- Section of Human Physiology and Unit of Dietetics and Sports Medicine, Department of Experimental Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Marcellino Monda
- Section of Human Physiology and Unit of Dietetics and Sports Medicine, Department of Experimental Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Antonietta Messina
- Section of Human Physiology and Unit of Dietetics and Sports Medicine, Department of Experimental Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Giuseppe Cibelli
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Chiara Porro
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Ester La Torre
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Daniela Pisanelli
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Fiorenzo Moscatelli
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto, 71100 Foggia, Italy; (A.V.); (G.C.); (C.P.); (E.L.T.); or (D.P.); (F.M.)
- Correspondence: ; Tel.: +39-088-1588-095
| | - Vincenzo Monda
- Section of Human Physiology and Unit of Dietetics and Sports Medicine, Department of Experimental Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
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Trivedi GY, Saboo B. Bhramari Pranayama - A simple lifestyle intervention to reduce heart rate, enhance the lung function and immunity. J Ayurveda Integr Med 2021; 12:562-564. [PMID: 34364739 PMCID: PMC8377171 DOI: 10.1016/j.jaim.2021.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 04/27/2021] [Accepted: 07/05/2021] [Indexed: 12/04/2022] Open
Abstract
Individuals with chronic diseases have a higher risk of infection and show lung function impairment. Poor lifestyle choices such as physical inactivity, poor diet, stress, excess tobacco, and alcohol, and sleep disruption increase the risk of chronic inflammation and immune impairment but the evidence does not quantify the specific risk factor(s) and their correlation with the immune system impairment. COVID-19 related uncertainty has created a more urgent need to understand the need to identify interventions that could help in managing the risk factors, especially for healthy individuals who are at a higher risk of infection and/or immune system impairment. The role of three parameters, the Resting Heart Rate (HR), increased Heart Rate Variability (HRV), and lung function is considered as risk factors for systemic inflammation and chronic diseases. The evidence on Bhramari Pranayama is presented for possible lifestyle interventions to reduce the risk of infection, increase lung function, enhance autonomic function, and improve sleep quality in healthy individuals.
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Affiliation(s)
- Gunjan Y Trivedi
- Society for Energy & Emotions, Wellness Space, JJT University, India.
| | - Banshi Saboo
- Diabetologist and Chairman, Dia Care, Ahmedabad, India
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68
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Hajduczok AG, DiJoseph KM, Bent B, Thorp AK, Mullholand JB, MacKay SA, Barik S, Coleman JJ, Paules CI, Tinsley A. Physiologic Response to the Pfizer-BioNTech COVID-19 Vaccine Measured Using Wearable Devices: Prospective Observational Study. JMIR Form Res 2021; 5:e28568. [PMID: 34236995 PMCID: PMC8341091 DOI: 10.2196/28568] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 12/23/2022] Open
Abstract
Background The Pfizer-BioNTech COVID-19 vaccine uses a novel messenger RNA technology to elicit a protective immune response. Short-term physiologic responses to the vaccine have not been studied using wearable devices. Objective We aim to characterize physiologic changes in response to COVID-19 vaccination in a small cohort of participants using a wearable device (WHOOP Strap 3.0). This is a proof of concept for using consumer-grade wearable devices to monitor response to COVID-19 vaccines. Methods In this prospective observational study, physiologic data from 19 internal medicine residents at a single institution that received both doses of the Pfizer-BioNTech COVID-19 vaccine was collected using the WHOOP Strap 3.0. The primary outcomes were percent change from baseline in heart rate variability (HRV), resting heart rate (RHR), and respiratory rate (RR). Secondary outcomes were percent change from baseline in total, rapid eye movement, and deep sleep. Exploratory outcomes included local and systemic reactogenicity following each dose and prophylactic analgesic use. Results In 19 individuals (mean age 28.8, SD 2.2 years; n=10, 53% female), HRV was decreased on day 1 following administration of the first vaccine dose (mean –13.44%, SD 13.62%) and second vaccine dose (mean –9.25%, SD 22.6%). RHR and RR showed no change from baseline after either vaccine dose. Sleep duration was increased up to 4 days post vaccination, after an initial decrease on day 1. Increased sleep duration prior to vaccination was associated with a greater change in HRV. Local and systemic reactogenicity was more severe after dose two. Conclusions This is the first observational study of the physiologic response to any of the novel COVID-19 vaccines as measured using wearable devices. Using this relatively small healthy cohort, we provide evidence that HRV decreases in response to both vaccine doses, with no significant changes in RHR or RR. Sleep duration initially decreased following each dose with a subsequent increase thereafter. Future studies with a larger sample size and comparison to other inflammatory and immune biomarkers such as antibody response will be needed to determine the true utility of this type of continuous wearable monitoring in regards to vaccine responses. Our data raises the possibility that increased sleep prior to vaccination may impact physiologic responses and may be a modifiable way to increase vaccine response. These results may inform future studies using wearables for monitoring vaccine responses. Trial Registration ClinicalTrials.gov NCT04304703; https://www.clinicaltrials.gov/ct2/show/NCT04304703
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Affiliation(s)
- Alexander G Hajduczok
- Division of Internal Medicine, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Kara M DiJoseph
- Division of Internal Medicine, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Brinnae Bent
- Department of Biomedical Engineering, Duke University, Durham, NC, United States
| | - Audrey K Thorp
- Division of Internal Medicine, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Jon B Mullholand
- Division of Internal Medicine, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Stuart A MacKay
- Division of Internal Medicine, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Sabrina Barik
- Division of Internal Medicine, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Jamie J Coleman
- Department of Surgery, Denver Health Medical Center, Denver, CO, United States
| | - Catharine I Paules
- Division of Infectious Diseases, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
| | - Andrew Tinsley
- Division of Gastroenterology, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, United States
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D’Annibale M, Hornzee N, Whelan M, Guess N, Hall W, Gibson R. Eating on the night shift: A need for evidence‐based dietary guidelines? NUTR BULL 2021. [DOI: 10.1111/nbu.12515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Maria D’Annibale
- Department of Nutritional Sciences King’s College London London UK
| | - Nicky Hornzee
- Department of Nutritional Sciences King’s College London London UK
| | - Megan Whelan
- Department of Nutritional Sciences King’s College London London UK
- Work Ready Group British Dietetic Association Birmingham UK
| | - Nicola Guess
- Department of Nutritional Sciences King’s College London London UK
- Research Centre for Optimal Health University of Westminster London UK
| | - Wendy Hall
- Department of Nutritional Sciences King’s College London London UK
| | - Rachel Gibson
- Department of Nutritional Sciences King’s College London London UK
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Chung AH, Gevirtz RN, Gharbo RS, Thiam MA, Ginsberg JPJ. Pilot Study on Reducing Symptoms of Anxiety with a Heart Rate Variability Biofeedback Wearable and Remote Stress Management Coach. Appl Psychophysiol Biofeedback 2021; 46:347-358. [PMID: 34308526 PMCID: PMC8310680 DOI: 10.1007/s10484-021-09519-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We assessed the feasibility of using a consumer friendly, heart rate variability biofeedback (HRVB) wearable device in conjunction with a remote stress management coach to reduce symptoms of anxiety. We utilized a discreet, continuously wearable electrocardiogram device, the Lief Smart Patch, which measures and records heart rate and HRV in real time, and guides HRVB exercises using vibrations and visual cues. During the 8-week study, participants (N = 14) wore the Lief Smart Patch, participated in HRVB with the device, utilized the mobile app, and communicated with a remote stress management coach. We collected self-report survey responses to measure symptoms of anxiety (GAD-2) and depression (PHQ-2) every 2 weeks, as well as HRV data throughout the study. Participants’ mean GAD-2 score began at 4.6 out of 6. By the trial’s completion, the group’s mean GAD-2 score dropped to 1.7 (t(13) = 11.0, p < .001) with only 2 of the 14 subjects remaining over the clinical threshold of high anxiety. Similarly, the group’s mean PHQ-2 score dropped from 2.93 to 1.29 (t(13) = 3.54, p < .01). In addition, participants increased their HRV (RMSSD) by an average of + 11.4 ms after participating in a low dose biofeedback exercise. These findings suggest that engaging in HRVB through a discreet wearable device in conjunction with a remote stress management program may be effective for reducing symptoms of anxiety and depression.
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Affiliation(s)
- Adrienne H Chung
- Lief Therapeutics, 2703 Seventh Street #301, Mailbox #123, Berkeley, CA, 94710, USA.
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Järvelä-Reijonen E, Järvinen S, Karhunen L, Föhr T, Myllymäki T, Sairanen E, Lindroos S, Peuhkuri K, Hallikainen M, Pihlajamäki J, Puttonen S, Korpela R, Ermes M, Lappalainen R, Kujala UM, Kolehmainen M, Laitinen J. Sleep-time physiological recovery is associated with eating habits in distressed working-age Finns with overweight: secondary analysis of a randomised controlled trial. J Occup Med Toxicol 2021; 16:23. [PMID: 34183032 PMCID: PMC8237494 DOI: 10.1186/s12995-021-00310-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 06/08/2021] [Indexed: 12/31/2022] Open
Abstract
Background Association of physiological recovery with nutrition has scarcely been studied. We investigated whether physiological recovery during sleep relates to eating habits, i.e., eating behaviour and diet quality. Methods Cross-sectional baseline analysis of psychologically distressed adults with overweight (N = 252) participating in a lifestyle intervention study in three Finnish cities. Recovery measures were based on sleep-time heart rate variability (HRV) measured for 3 consecutive nights. Measures derived from HRV were 1) RMSSD (Root Mean Square of the Successive Differences) indicating the parasympathetic activation of the autonomic nervous system and 2) Stress Balance (SB) indicating the temporal ratio of recovery to stress. Eating behaviour was measured with questionnaires (Intuitive Eating Scale, Three-Factor Eating Questionnaire, Health and Taste Attitude Scales, ecSatter Inventory™). Diet quality was quantified using questionnaires (Index of Diet Quality, Alcohol Use Disorders Identification Test Consumption) and 48-h dietary recall. Results Participants with best RMSSD reported less intuitive eating (p = 0.019) and less eating for physical rather than emotional reasons (p = 0.010) compared to those with poorest RMSSD; participants with good SB reported less unconditional permission to eat (p = 0.008), higher fibre intake (p = 0.028), higher diet quality (p = 0.001), and lower alcohol consumption (p < 0.001) compared to those with poor SB, although effect sizes were small. In subgroup analyses among participants who reported working regular daytime hours (n = 216), only the associations of SB with diet quality and alcohol consumption remained significant. Conclusions Better nocturnal recovery showed associations with better diet quality, lower alcohol consumption and possibly lower intuitive eating. In future lifestyle interventions and clinical practice, it is important to acknowledge sleep-time recovery as one possible factor linked with eating habits. Trial registration ClinicalTrials.gov Identifier NCT01738256, Registered 17 August 2012. Supplementary Information The online version contains supplementary material available at 10.1186/s12995-021-00310-6.
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Affiliation(s)
- Elina Järvelä-Reijonen
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Suvi Järvinen
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.
| | - Leila Karhunen
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.,Institute of Clinical Medicine and Clinical Nutrition, Kuopio University Hospital, P.O. Box 100, FI-70029 KYS, Kuopio, Finland
| | - Tiina Föhr
- Faculty of Sport and Health Sciences, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Tero Myllymäki
- Department of Psychology, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Essi Sairanen
- Department of Psychology, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland.,Department of Psychology, Karlstad University, SE-651 88, Karlstad, Sweden
| | - Sanni Lindroos
- Medical Faculty, Pharmacology, Medical Nutrition Physiology, University of Helsinki, P.O. Box 63, FI-00014, Helsinki, Finland
| | - Katri Peuhkuri
- Medical Faculty, Pharmacology, Medical Nutrition Physiology, University of Helsinki, P.O. Box 63, FI-00014, Helsinki, Finland.,Social Services and Health Care, City of Helsinki, Helsinki, Finland
| | - Maarit Hallikainen
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Jussi Pihlajamäki
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.,Institute of Clinical Medicine and Clinical Nutrition, Kuopio University Hospital, P.O. Box 100, FI-70029 KYS, Kuopio, Finland
| | - Sampsa Puttonen
- Finnish Institute of Occupational Health, P.O. Box 40, FI-00251, Helsinki, Finland
| | - Riitta Korpela
- Medical Faculty, Pharmacology, Medical Nutrition Physiology, University of Helsinki, P.O. Box 63, FI-00014, Helsinki, Finland.,Medical Faculty, Human Microbe Research Program, University of Helsinki, P.O. Box 63, FI-00014, Helsinki, Finland
| | - Miikka Ermes
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - Raimo Lappalainen
- Department of Psychology, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Urho M Kujala
- Faculty of Sport and Health Sciences, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Marjukka Kolehmainen
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.,Institute of Clinical Medicine and Clinical Nutrition, Kuopio University Hospital, P.O. Box 100, FI-70029 KYS, Kuopio, Finland
| | - Jaana Laitinen
- Finnish Institute of Occupational Health, P.O. Box 40, FI-00251, Helsinki, Finland
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72
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Duque A, Mediano MFF, De Lorenzo A, Rodrigues Jr LF. Cardiovascular autonomic neuropathy in diabetes: Pathophysiology, clinical assessment and implications. World J Diabetes 2021; 12:855-867. [PMID: 34168733 PMCID: PMC8192252 DOI: 10.4239/wjd.v12.i6.855] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/05/2021] [Accepted: 05/20/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular autonomic neuropathy (CAN) is a debilitating condition that mainly occurs in long-standing type 2 diabetes patients but can manifest earlier, even before diabetes is diagnosed. CAN is a microvascular complication that results from lesions of the sympathetic and parasympathetic nerve fibers, which innervate the heart and blood vessels and promote alterations in cardiovascular autonomic control. The entire mechanism is still not elucidated, but several aspects of the pathophysiology of CAN have already been described, such as the production of advanced glycation end products, reactive oxygen species, nuclear factor kappa B, and pro-inflammatory cytokines. This microvascular complication is an important risk factor for silent myocardial ischemia, chronic kidney disease, myocardial dysfunction, major cardiovascular events, cardiac arrhythmias, and sudden death. It has also been suggested that, compared to other traditional cardiovascular risk factors, CAN progression may have a greater impact on cardiovascular disease development. However, CAN might be subclinical for several years, and a late diagnosis increases the mortality risk. The duration of the transition period from the subclinical to clinical stage remains unknown, but the progression of CAN is associated with a poor prognosis. Several tests can be used for CAN diagnosis, such as heart rate variability (HRV), cardiovascular autonomic reflex tests, and myocardial scintigraphy. Currently, it has already been described that CAN could be detected even during the subclinical stage through a reduction in HRV, which is a non-invasive test with a lower operating cost. Therefore, considering that diabetes mellitus is a global epidemic and that diabetic neuropathy is the most common chronic complication of diabetes, the early identification and treatment of CAN could be a key point to mitigate the morbidity and mortality associated with this long-lasting condition.
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Affiliation(s)
- Alice Duque
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
| | - Mauro Felippe Felix Mediano
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
- Laboratory of Clinical Research on Chagas Disease, Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro 21040360, RJ, Brazil
| | - Andrea De Lorenzo
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
| | - Luiz Fernando Rodrigues Jr
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
- Department of Physiological Sciences, Biomedical Institute, Federal University of the State of Rio de Janeiro, Rio de Janeiro 22240006, RJ, Brazil
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73
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Heart Rate Variability Biofeedback Improves Emotional and Physical Health and Performance: A Systematic Review and Meta Analysis. Appl Psychophysiol Biofeedback 2021; 45:109-129. [PMID: 32385728 DOI: 10.1007/s10484-020-09466-z] [Citation(s) in RCA: 169] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We performed a systematic and meta analytic review of heart rate variability biofeedback (HRVB) for various symptoms and human functioning. We analyzed all problems addressed by HRVB and all outcome measures in all studies, whether or not relevant to the studied population, among randomly controlled studies. Targets included various biological and psychological problems and issues with athletic, cognitive, and artistic performance. Our initial review yielded 1868 papers, from which 58 met inclusion criteria. A significant small to moderate effect size was found favoring HRVB, which does not differ from that of other effective treatments. With a small number of studies for each, HRVB has the largest effect sizes for anxiety, depression, anger and athletic/artistic performance and the smallest effect sizes on PTSD, sleep and quality of life. We found no significant differences for number of treatment sessions or weeks between pretest and post-test, whether the outcome measure was targeted to the population, or year of publication. Effect sizes are larger in comparison to inactive than active control conditions although significant for both. HRVB improves symptoms and functioning in many areas, both in the normal and pathological ranges. It appears useful as a complementary treatment. Further research is needed to confirm its efficacy for particular applications.
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74
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Analysis of Gender Differences in HRV of Patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Using Mobile-Health Technology. SENSORS 2021; 21:s21113746. [PMID: 34071326 PMCID: PMC8197911 DOI: 10.3390/s21113746] [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: 04/20/2021] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 01/09/2023]
Abstract
In a previous study using mobile-health technology (mHealth), we reported a robust association between chronic fatigue symptoms and heart rate variability (HRV) in female patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). This study explores HRV analysis as an objective, non-invasive and easy-to-apply marker of ME/CFS using mHealth technology, and evaluates differential gender effects on HRV and ME/CFS core symptoms. In our methodology, participants included 77 ME/CFS patients (32 men and 45 women) and 44 age-matched healthy controls (19 men and 25 women), all self-reporting subjective scores for fatigue, sleep quality, anxiety, and depression, and neurovegetative symptoms of autonomic dysfunction. The inter-beat cardiac intervals are continuously monitored/recorded over three 5-min periods, and HRV is analyzed using a custom-made application (iOS) on a mobile device connected via Bluetooth to a wearable cardiac chest band. Male ME/CFS patients show increased scores compared with control men in all symptoms and scores of fatigue, and autonomic dysfunction, as with women in the first study. No differences in any HRV parameter appear between male ME/CFS patients and controls, in contrast to our findings in women. However, we have found negative correlations of ME/CFS symptomatology with cardiac variability (SDNN, RMSSD, pNN50, LF) in men. We have also found a significant relationship between fatigue symptomatology and HRV parameters in ME/CFS patients, but not in healthy control men. Gender effects appear in HF, LF/HF, and HFnu HRV parameters. A MANOVA analysis shows differential gender effects depending on the experimental condition in autonomic dysfunction symptoms and HF and HFnu HRV parameters. A decreased HRV pattern in ME/CFS women compared to ME/CFS men may reflect a sex-related cardiac autonomic dysfunction in ME/CFS illness that could be used as a predictive marker of disease progression. In conclusion, we show that HRV analysis using mHealth technology is an objective, non-invasive tool that can be useful for clinical prediction of fatigue severity, especially in women with ME/CFS.
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75
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Ratajczak E, Hajnowski M, Stawicki M, Duch W. Novel Methodological Tools for Behavioral Interventions: The Case of HRV-Biofeedback. Sham Control and Quantitative Physiology-Based Assessment of Training Quality and Fidelity. SENSORS 2021; 21:s21113670. [PMID: 34070475 PMCID: PMC8197468 DOI: 10.3390/s21113670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/15/2021] [Accepted: 05/20/2021] [Indexed: 12/30/2022]
Abstract
Scientific research on heart rate variability (HRV) biofeedback is burdened by certain methodological issues, such as lack of consistent training quality and fidelity assessment or control conditions that would mimic the intervention. In the present study, a novel sham HRV-biofeedback training was proposed as a credible control condition, indistinguishable from the real training. The Yield Efficiency of Training Index (YETI), a quantitative measure based on the spectral distribution of heart rate during training, was suggested for training quality assessment. A training fidelity criterion derived from a two-step classification process based on the average YETI index and its standard deviation (YETISD) was suggested. We divided 57 young, healthy volunteers into two groups, each subjected to 20 sessions of either real or sham HRV-biofeedback. Five standard HRV measures (standard deviation of the NN (SDNN), root mean square of the standard deviation of the NN (RMSSD), total power, low-frequency (LF), and high-frequency (HF) power) collected at baseline, after 10 and 20 sessions were subjected to analysis of variance. Application of a training fidelity criterion improved sample homogeneity, resulting in a substantial gain in effect sizes of the group and training interactions for all considered HRV indices. Application of methodological amendments, including proper control conditions (such as sham training) and quantitative assessment of training quality and fidelity, substantially improves the analysis of training effects. Although presented on the example of HRV-biofeedback, this approach should similarly benefit other behavioral training procedures that interact with any of the many psychophysiological mechanisms in the human body.
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Affiliation(s)
- Ewa Ratajczak
- Institute of Psychology, Faculty of Philosophy and Social Sciences, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
- Department of Informatics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland;
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland;
- Correspondence:
| | - Marcin Hajnowski
- Institute of Information and Communication Research, Faculty of Philosophy and Social Sciences, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland;
| | - Mateusz Stawicki
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland;
| | - Włodzisław Duch
- Department of Informatics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland;
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100 Toruń, Poland;
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76
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Is There Association between Altered Adrenergic System Activity and Microvascular Endothelial Dysfunction Induced by a 7-Day High Salt Intake in Young Healthy Individuals. Nutrients 2021; 13:nu13051731. [PMID: 34065261 PMCID: PMC8161165 DOI: 10.3390/nu13051731] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/12/2021] [Accepted: 05/18/2021] [Indexed: 01/06/2023] Open
Abstract
This study aimed to test the effect of a 7-day high-salt (HS) diet on autonomic nervous system (ANS) activity in young healthy individuals and modulation of ANS on microvascular endothelial function impairment. 47 young healthy individuals took 7-day low-salt (LS) diet (3.5 g salt/day) followed by 7-day high-salt (HS) diet (~14.7 g salt/day). ANS activity was assessed by 24-h urine catecholamine excretion and 5-min heart rate variability (HRV). Skin post-occlusive reactive hyperemia (PORH) and acetylcholine-induced dilation (AChID) were assessed by laser Doppler flowmetry (LDF). Separately, mental stress test (MST) at LS and HS condition was conducted, followed by immediate measurement of plasma metanephrines’ level, 5-min HRV and LDF microvascular reactivity. Noradrenaline, metanephrine and normetanephrine level, low-frequency (LF) HRV and PORH and AChID significantly decreased following HS compared to LS. MST at HS condition tended to increase HRV LF/HF ratio. Spectral analysis of PORH signal, and AChID measurement showed that MST did not significantly affect impaired endothelium-dependent vasodilation due to HS loading. In this case, 7-day HS diet suppressed sympathetic nervous system (SNS) activity, and attenuated microvascular reactivity in salt-resistant normotensive individuals. Suppression of SNS during HS loading represents a physiological response, rather than direct pathophysiological mechanism by which HS diet affects microvascular endothelial function in young healthy individuals.
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77
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Mead J, Fisher Z, Kemp AH. Moving Beyond Disciplinary Silos Towards a Transdisciplinary Model of Wellbeing: An Invited Review. Front Psychol 2021; 12:642093. [PMID: 34054648 PMCID: PMC8160439 DOI: 10.3389/fpsyg.2021.642093] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 04/14/2021] [Indexed: 12/27/2022] Open
Abstract
The construct of wellbeing has been criticised as a neoliberal construction of western individualism that ignores wider systemic issues such as inequality and anthropogenic climate change. Accordingly, there have been increasing calls for a broader conceptualisation of wellbeing. Here we impose an interpretative framework on previously published literature and theory, and present a theoretical framework that brings into focus the multifaceted determinants of wellbeing and their interactions across multiple domains and levels of scale. We define wellbeing as positive psychological experience, promoted by connections to self, community and environment, supported by healthy vagal function, all of which are impacted by socio-contextual factors that lie beyond the control of the individual. By emphasising the factors within and beyond the control of the individual and highlighting how vagal function both affects and are impacted by key domains, the biopsychosocial underpinnings of wellbeing are explicitly linked to a broader context that is consistent with, yet complementary to, multi-levelled ecological systems theory. Reflecting on the reciprocal relationships between multiple domains, levels of scale and related social contextual factors known to impact on wellbeing, our GENIAL framework may provide a foundation for a transdisciplinary science of wellbeing that has the potential to promote the wellbeing of individuals while also playing a key role in tackling major societal challenges.
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Affiliation(s)
- Jessica Mead
- Department of Psychology, College of Human and Health Sciences, Swansea University, Swansea, United Kingdom
- Fieldbay, Swansea, United Kingdom
| | - Zoe Fisher
- Fieldbay, Swansea, United Kingdom
- Health and Wellbeing Academy, College of Human and Health Sciences, Swansea University, Swansea, United Kingdom
- Community Brain Injury Service, Morriston Hospital, Swansea, United Kingdom
| | - Andrew H. Kemp
- Department of Psychology, College of Human and Health Sciences, Swansea University, Swansea, United Kingdom
- Community Brain Injury Service, Morriston Hospital, Swansea, United Kingdom
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Strüven A, Holzapfel C, Stremmel C, Brunner S. Obesity, Nutrition and Heart Rate Variability. Int J Mol Sci 2021; 22:ijms22084215. [PMID: 33921697 PMCID: PMC8072942 DOI: 10.3390/ijms22084215] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Heart rate variability (HRV) represents the activity and balance of the autonomic nervous system and its capability to react to internal and external stimuli. As a measure of general body homeostasis, HRV is linked to lifestyle factors and it is associated with morbidity and mortality. It is easily accessible by heart rate monitoring and gains interest in the era of smart watches and self-monitoring. In this review, we summarize effects of weight loss, training, and nutrition on HRV with a special focus on obesity. Besides weight reduction, effects of physical activity and dietary intervention can be monitored by parameters of HRV, including its time and frequency domain components. In the future, monitoring of HRV should be included in any weight reduction program as it provides an additional tool to analyze the effect of body weight on general health and homeostasis. HRV parameters could, for example, be monitored easily by implementation of an electrocardiogram (ECG) every two to four weeks during weight reduction period. Indices presumibly showing beneficial changes could be a reduction in heart rate and the number of premature ventricular complexes as well as an increase in standard deviation of normal-to-normal beat intervals (SDNN), just to name some.
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Affiliation(s)
- Anna Strüven
- Department of Medicine I, University Hospital Munich, Ludwig Maximilians University Munich, Marchioninistr. 15, 81377 Munich, Germany; (A.S.); (C.S.)
- German Center for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Marchioninistr. 15, 81377 Munich, Germany
| | - Christina Holzapfel
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany;
| | - Christopher Stremmel
- Department of Medicine I, University Hospital Munich, Ludwig Maximilians University Munich, Marchioninistr. 15, 81377 Munich, Germany; (A.S.); (C.S.)
- German Center for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Marchioninistr. 15, 81377 Munich, Germany
| | - Stefan Brunner
- Department of Medicine I, University Hospital Munich, Ludwig Maximilians University Munich, Marchioninistr. 15, 81377 Munich, Germany; (A.S.); (C.S.)
- German Center for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Marchioninistr. 15, 81377 Munich, Germany
- Department of Medicine I, University Hospital Munich, Ziemssenstrasse 1, 80336 Munich, Germany
- Correspondence: ; Tel.: +49-89-4400-52248; Fax: +49-89-4400-75251
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79
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Köchli S, Schutte AE, Botha-Le Roux S, Gafane-Matemane LF, Smith W, van Rooyen JM, Mokwatsi GG, Kruger R. Potassium excretion and blood pressure are associated with heart rate variability in healthy black adults: The African-PREDICT study. Nutr Metab Cardiovasc Dis 2021; 31:1071-1080. [PMID: 33549447 DOI: 10.1016/j.numecd.2020.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND AND AIMS Heart rate variability (HRV) is a main determinant of autonomic function and related to the development of hypertension and cardiovascular (CV) disease. Hypertension develops in black populations at an earlier age, which could be due to differences in the autonomic nervous system activity and sodium/potassium handling in black and white populations. We investigated whether HRV is associated with 24 h urinary sodium and potassium excretion and blood pressure (BP) in a young bi-ethnic cohort. METHODS AND RESULTS We examined 423 black and 483 white healthy adults (aged 24.5 ± 3.1 years) for 24 h HRV, including standard deviation of normal RR intervals (SDNN) reflecting autonomic variations over time, and root mean square of successive differences (RMSSD) reflecting parasympathetic activity. We measured 24 h urinary sodium and potassium concentration and BP. The black group had lower SDNN and potassium excretion as well as higher RMSSD, sodium and Na/k ratio compared to the white group (all p < 0.05). Only in black individuals, urinary potassium excretion was independently and negatively associated with SDNN (β[95% CI];-0.26[-0.50;-0.02]ms) and RMSSD (-0.14[-0.27;-0.01]ms, p < 0.05). One unit increase in sodium/potassium (Na/K) ratio was associated with higher SDNN (β[95% CI]; 3.04[0.89; 5.19]ms) and RMSSD (1.60[0.41; 2.78]ms) in the black cohort only (both p < 0.001). In both groups elevated 24 h diastolic BP was associated with lower RMSSD (p < 0.05). CONCLUSION Lower potassium excretion and higher Na/K ratio related independently to higher HRV in young and healthy black adults. A better ethnic-specific understanding of sodium and potassium handling is required as part of preventive cardiology, especially in black individuals. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03292094; URL: https://clinicaltrials.gov/ct2/show/NCT03292094.
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Affiliation(s)
- Sabrina Köchli
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Aletta E Schutte
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa; School of Population Health, University of New South Wales, The George Institute for Global Health, Sydney, Australia
| | - Shani Botha-Le Roux
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Lebo F Gafane-Matemane
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Wayne Smith
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Johannes M van Rooyen
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Gontse G Mokwatsi
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa
| | - Ruan Kruger
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa; Medical Research Council: Unit for Hypertension and Cardiovascular Disease, Faculty of Health Sciences, North-West University, Potchefstroom, South Africa.
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Teixeira E, Fonseca H, Diniz-Sousa F, Veras L, Boppre G, Oliveira J, Pinto D, Alves AJ, Barbosa A, Mendes R, Marques-Aleixo I. Wearable Devices for Physical Activity and Healthcare Monitoring in Elderly People: A Critical Review. Geriatrics (Basel) 2021; 6:38. [PMID: 33917104 PMCID: PMC8167657 DOI: 10.3390/geriatrics6020038] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 04/02/2021] [Indexed: 01/22/2023] Open
Abstract
The availability of wearable devices (WDs) to collect biometric information and their use during activities of daily living is significantly increasing in the general population. These small electronic devices, which record fitness and health-related outcomes, have been broadly utilized in industries such as medicine, healthcare, and fitness. Since they are simple to use and progressively cheaper, they have also been used for numerous research purposes. However, despite their increasing popularity, most of these WDs do not accurately measure the proclaimed outcomes. In fact, research is equivocal about whether they are valid and reliable methods to specifically evaluate physical activity and health-related outcomes in older adults, since they are mostly designed and produced considering younger subjects' physical and mental characteristics. Additionally, their constant evolution through continuous upgrades and redesigned versions, suggests the need for constant up-to-date reviews and research. Accordingly, this article aims to scrutinize the state-of-the-art scientific evidence about the usefulness of WDs, specifically on older adults, to monitor physical activity and health-related outcomes. This critical review not only aims to inform older consumers but also aid researchers in study design when selecting physical activity and healthcare monitoring devices for elderly people.
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Affiliation(s)
- Eduardo Teixeira
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Faculty of Psychology, Education and Sports, Lusófona University of Porto, 4000-098 Porto, Portugal
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Hélder Fonseca
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Florêncio Diniz-Sousa
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Lucas Veras
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Giorjines Boppre
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - José Oliveira
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Diogo Pinto
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University Institute of Maia, 4475-690 Maia, Portugal
| | - Alberto Jorge Alves
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University Institute of Maia, 4475-690 Maia, Portugal
| | - Ana Barbosa
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, 4050-091 Porto, Portugal
| | - Romeu Mendes
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, 4050-091 Porto, Portugal
- Northern Region Health Administration, 4000-477 Porto, Portugal
| | - Inês Marques-Aleixo
- Research Centre in Physical Activity, Health, and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Faculty of Psychology, Education and Sports, Lusófona University of Porto, 4000-098 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
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Benjamim CJR, Pontes YMDM, de Sousa Junior FW, Porto AA, Bueno Júnior CR, Marcelino da Silva AA, Ferro Cavalcante TC, Garner DM, Valenti VE. Does bariatric surgery improve cardiac autonomic modulation assessed by heart rate variability? A systematic review. Surg Obes Relat Dis 2021; 17:1497-1509. [PMID: 33958294 DOI: 10.1016/j.soard.2021.03.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/04/2021] [Accepted: 03/20/2021] [Indexed: 11/17/2022]
Abstract
Our study aimed to explore the influence of bariatric surgery (BS) on heart rate (HR) variability (HRV) through a systematic review. Manuscripts were selected based on electronic searches of the MEDLINE, EMBASE, and CINAHL databases from the inception of each database up to year 2020, and followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol. Searching of these studies was systematized using the Population Intervention Comparison Outcome Study Design strategy. We selected randomized and nonrandomized controlled trials and cohorts from prospective studies that reported the influence of BS on HRV. We assessed the quality rating using the Black and Downs questionnaire. Following the screening and eligibility stages, 14 studies were included in the review. All studies agreed that BS promotes an increase in parasympathetic HR control and HRV and a decrease in HR. Yet the literature does not provide evidence that these outcomes are directly caused by the surgical procedure. There is limited evidence to support that patients with type 2 diabetes have greater improvement in HRV as an interim measure, to individuals without. The decrease in insulin resistance was correlated with the increase in HRV in some studies, but, other studies are unsupportive of this outcome. Improvements in 2 metabolic parameters (e.g., leptin, N-terminal pro B-type natriuretic peptide) were connected with superior increases in HRV. This review demonstrated that BS promotes an increase in HRV, indicating improved autonomic control of HR.
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Affiliation(s)
- Cicero Jonas R Benjamim
- Development, Nutrition, Phytotherapy and Hygiene Research Group, University of Pernambuco, Petrolina, Brazil; Autonomic Nervous System Center, Sao Paulo State University, Marilia, Brazil
| | - Yasmim Mota de M Pontes
- Physiological and Collective Sciences Nucleus, School of Juazeiro do Norte, Juazeiro do Norte, Brazil
| | | | - Andrey Alves Porto
- Autonomic Nervous System Center, Sao Paulo State University, Marilia, Brazil; Department of Physical Therapy, Faculty of Sciences and Technologies, UNESP, Presidente Prudente, Brazil
| | - Carlos Roberto Bueno Júnior
- Ribeirão Preto Medical School, Department of Medical Clinic, University of São Paulo, Ribeirão Preto, Brazil
| | - Amanda A Marcelino da Silva
- Development, Nutrition, Phytotherapy and Hygiene Research Group, University of Pernambuco, Petrolina, Brazil
| | - Taisy C Ferro Cavalcante
- Development, Nutrition, Phytotherapy and Hygiene Research Group, University of Pernambuco, Petrolina, Brazil
| | - David M Garner
- Cardiorespiratory Research Group, Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Headington Campus, Oxford, United Kingdom
| | - Vitor E Valenti
- Autonomic Nervous System Center, Sao Paulo State University, Marilia, Brazil.
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Akinlade OM, Owoyele B, Soladoye OA. Carvedilol improves heart rate variability indices, biomarkers but not cardiac nerve density in streptozotocin-induced T2DM model of diabetic cardiac autonomic neuropathy. J Basic Clin Physiol Pharmacol 2021; 33:213-222. [PMID: 33735951 DOI: 10.1515/jbcpp-2020-0282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/02/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES There has been increasing recognition of the significant relationship between the autonomic nervous system and cardiovascular sequel in diabetes mellitus (DM) patients. Diabetic cardiac autonomic neuropathy (DCAN) still poses a treatment challenge in the clinical settings despite several research interventions. This study was designed to investigate the effect of carvedilol on experimentally induced DCAN in type 2 DM rat model. METHODS DCAN was induced in 42 Wistar rats using high fat diet (HFD) for eight weeks, thereafter streptozotocin (STZ) at 25 mg/kg daily for five days. DCAN features were then assessed using non-invasive time and frequency varying holter electrocardiogram (ECG), invasive biomarkers, cardiac histology and cardiac nerve density. RESULTS Carvedilol significantly ameliorated the effects of DCAN on noradrenaline (p=0.010) and advanced glycated end products (AGEs) (p<0.0001). Similarly, carvedilol reversed the reduction in levels of antioxidants, sorbitol dehydrogenase (SD) activity (p=0.009) nerve growth factors (p<0.0001) and choline acetyl-transferase (p=0.031) following DCAN induction. Furthermore, heart rate variability (HRV) indices which were also reduced with DCAN induction were also ameliorated by carvedilol. However, carvedilol had no significant effect on cardiac neuronal dystrophy and reduced cardiac nerve densities. CONCLUSIONS Carvedilol improves physiological HRV indices and biomarkers but not structural lesions. Early detection of DCAN and intervention with carvedilol may prevent progression of autonomic neurologic sequel.
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Affiliation(s)
- Olawale Mathias Akinlade
- Neuroscience and Inflammation Unit, Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria.,Internal Medicine Department, Cardiology Unit, LAUTECH Teaching Hospital, Ogbomoso, Oyo State, Nigeria
| | - Bamidele Owoyele
- Neuroscience and Inflammation Unit, Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria
| | - Olufemi Ayodele Soladoye
- Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria
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Schmalbach I, Herhaus B, Pässler S, Runst S, Berth H, Wolff S, Schmalbach B, Petrowski K. Autonomic Nervous System Response to Psychosocial Stress in Anorexia Nervosa: A Cross-Sectional and Controlled Study. Front Psychol 2021; 12:649848. [PMID: 33815232 PMCID: PMC8011538 DOI: 10.3389/fpsyg.2021.649848] [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: 01/05/2021] [Accepted: 02/11/2021] [Indexed: 11/13/2022] Open
Abstract
To foster understanding in the psychopathology of patients with anorexia nervosa (PAN) at the psychological and physiological level, standardized experimental studies on reliable biomarkers are needed, especially due to the lack of disorder-specific samples. To this end, the autonomic nervous system (ANS) response to a psychosocial stressor was investigated in n = 19 PAN (BMI: 18.7 ± 3.3 kg/m2), age, and gender-matched to n = 19 healthy controls (HC; BMI: 24.23 ± 3.0 kg/m2). For this purpose, heart rate (HR) and heart rate variability (HRV) parameters were assessed in a cross-sectional study design under two experimental conditions: (1) rest and (2) stress (Trier Social Stress Test). In addition, psychological indicators of stress were assessed. An 2 × 2 × 8 ANOVA demonstrated similar HR and HRV patterns (except LF-HRV) between PAN and HC at rest. Under stress, PAN (vs. HC) demonstrated a blunted HR [condition*time*group: F(2.91, 104.98) = 9.326, p = 0.000, η2 = 0.206] and an attenuated HRV response (reduced SNS/PNS reactivity). Significant effects of stress appraisal (SA) and BMI on HRV-reactivity were revealed. SA on SDNN = Condition*time*SA = F(4.12, 140.15) = 2.676, p = 0.033, η2 = 0.073. BMI on LF/HF-Ratio = Condition*time*BMI = F(3.53, 60.16) = 3.339, p = 0.019, η2 = 0.164. Psychological indices suggested higher levels of chronic and appraised stress in PAN relative to HC. Additional analyses demonstrated that ED-symptoms are highly correlated with the latter constructs, as well as with psychological burden, but not with weight. Further, it was shown that abnormalities in reactivity persisted despite normalized ANS activity. Overall, we suggested that besides weight recovery, improvement in stress appraisal could be beneficial for cardiac health. In this light, a combination of therapy (e.g., development and activation of coping skills, cognitive reappraisal) and biofeedback training may improve treatment outcomes and regulate stress reactivity.
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Affiliation(s)
- Ileana Schmalbach
- Department of Medical Psychology and Medical Sociology, University Medical Center of the Johannes-Gutenberg University Mainz, Mainz, Germany.,Division of Psychological and Social Medicine and Developmental Neurosciences, Research Group Applied Medical Psychology and Medical Sociology, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Benedict Herhaus
- Department of Medical Psychology and Medical Sociology, University Medical Center of the Johannes-Gutenberg University Mainz, Mainz, Germany
| | - Sebastian Pässler
- Department of Psychotherapy and Psychosomatic Medicine, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Sarah Runst
- Department of Psychotherapy and Psychosomatic Medicine, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Hendrik Berth
- Division of Psychological and Social Medicine and Developmental Neurosciences, Research Group Applied Medical Psychology and Medical Sociology, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Silvia Wolff
- Department of Psychotherapy and Psychosomatic Medicine, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Bjarne Schmalbach
- Department of Medical Psychology and Medical Sociology, University Medical Center of the Johannes-Gutenberg University Mainz, Mainz, Germany
| | - Katja Petrowski
- Department of Medical Psychology and Medical Sociology, University Medical Center of the Johannes-Gutenberg University Mainz, Mainz, Germany.,Abteilung für Innere Medizin III, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Germany
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Davies J, Ugwudike P, Young H, Hurrell C, Raynor P. A Pragmatic Study of the Impact of a Brief Mindfulness Intervention on Prisoners and Staff in a Category B Prison and Men Subject to Community-Based Probation Supervision. INTERNATIONAL JOURNAL OF OFFENDER THERAPY AND COMPARATIVE CRIMINOLOGY 2021; 65:136-156. [PMID: 32684055 PMCID: PMC7780272 DOI: 10.1177/0306624x20944664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES This article presents two studies assessing the impact of mindfulness in prison (prisoners and staff) and non-custodial settings. METHOD Study 1-prisoners (n = 17) and staff (n = 15) in a UK prison completed a mindfulness program; 16 individuals acted as a single time point comparison. Data were collected using self-report, computer based and physiological measurement. Study 2-men under community probation supervision were allocated to mindfulness (completed, n = 28) or TAU (n = 27). Data were collected using self-report mindfulness measures. RESULTS Study 1-statistically significant (increases in mindfulness skills (η2p = .234 to η2p = .388), cognitive control (η2p = .28), and heart rate variability (SDNN; η2p = .41) along with significant decreases in stress (η2p = .398) were found. In study 2, the mindfulness group showed non-significant improvements in mindfulness skills. CONCLUSION The findings suggest brief mindfulness interventions could make an important contribution to offender rehabilitation and custodial staff wellbeing.
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85
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Sumi Y, Nakayama C, Kadotani H, Matsuo M, Ozeki Y, Kinoshita T, Goto Y, Kano M, Yamakawa T, Hasegawa-Ohira M, Ogawa K, Fujiwara K. Resting Heart Rate Variability Is Associated With Subsequent Orthostatic Hypotension: Comparison Between Healthy Older People and Patients With Rapid Eye Movement Sleep Behavior Disorder. Front Neurol 2020; 11:567984. [PMID: 33329309 PMCID: PMC7719719 DOI: 10.3389/fneur.2020.567984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/12/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Orthostatic hypotension (OH) caused by autonomic dysfunction is a common symptom in older people and patients with idiopathic rapid eye movement sleep behavior disorder (iRBD). The orthostatic challenge test is a standard autonomic function test that measures a decrease of blood pressure during a postural change from supine to standing positions. Although previous studies have reported that changes in heart rate variability (HRV) are associated with autonomic dysfunction, no study has investigated the relationship between HRV before standing and the occurrence of OH in an orthostatic challenge test. This study aims to examine the connection between HRV in the supine position and the occurrence of OH in an orthostatic challenge test. Methods: We measured the electrocardiograms of patients with iRBD and healthy older people during an orthostatic challenge test, in which the supine and standing positions were held for 15 min, respectively. The subjects were divided into three groups: healthy controls (HC), OH-negative iRBD [OH (-) iRBD], and OH-positive iRBD [OH (+) iRBD]. HRV measured in the supine position during the test were calculated by time-domain analysis and Poincaré plots to evaluate the autonomic dysfunction. Results: Forty-two HC, 12 OH (-) iRBD, and nine OH (+) iRBD subjects were included. HRV indices in the OH (-) and the OH (+) iRBD groups were significantly smaller than those in the HC group. The multivariate logistic regression analysis for OH identification for the iRBD groups showed the model whose inputs were the HRV indices, i.e., standard deviation 2 (SD2) and the percentage of adjacent intervals that varied by more than 50 ms (pNN50), had a receiver operating characteristic curve with area under the curve of 0.840, the sensitivity to OH (+) of 1.000, and the specificity to OH (-) of 0.583 (p = 0.023). Conclusions: This study showed the possibility that short-term HRV indices in the supine position would predict subsequent OH in iRBD patients. Our results are of clinical importance in terms of showing the possibility that OH can be predicted using only HRV in the supine position without an orthostatic challenge test, which would improve the efficiency and safety of testing.
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Affiliation(s)
- Yukiyoshi Sumi
- Department of Psychiatry, Shiga University of Medical Science, Otsu, Japan
| | - Chikao Nakayama
- Department of Systems Science, Kyoto University, Kyoto, Japan
| | - Hiroshi Kadotani
- Department of Sleep and Behavioral Sciences, Shiga University of Medical Science, Otsu, Japan
| | - Masahiro Matsuo
- Department of Psychiatry, Shiga University of Medical Science, Otsu, Japan
| | - Yuji Ozeki
- Department of Psychiatry, Shiga University of Medical Science, Otsu, Japan
| | | | - Yuki Goto
- Department of Systems Science, Kyoto University, Kyoto, Japan
| | - Manabu Kano
- Department of Systems Science, Kyoto University, Kyoto, Japan
| | - Toshitaka Yamakawa
- Department of Priority Organization for Innovation and Excellence, Kumamoto University, Kumamoto, Japan
| | | | - Keiko Ogawa
- Graduate School of Humanities and Social Sciences, Hiroshima University, Higashihiroshima, Japan
| | - Koichi Fujiwara
- Department of Systems Science, Kyoto University, Kyoto, Japan.,Department of Materials Process Engineering, Nagoya University, Nagoya, Japan
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86
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Lung SCC, Chen N, Hwang JS, Hu SC, Wang WCV, Wen TYJ, Liu CH. Panel study using novel sensing devices to assess associations of PM 2.5 with heart rate variability and exposure sources. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2020; 30:937-948. [PMID: 32753593 DOI: 10.1038/s41370-020-0254-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 07/06/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND/OBJECTIVE This work applied a newly developed low-cost sensing (LCS) device (AS-LUNG-P) and a certified medical LCS device (Rooti RX) to assessing PM2.5 impacts on heart rate variability (HRV) and determining important exposure sources, with less inconvenience to subjects. METHODS Observations using AS-LUNG-P were corrected by side-by-side comparison with GRIMM instruments. Thirty-six nonsmoking healthy subjects aged 20-65 years were wearing AS-LUNG-P and Rooti RX for 2-4 days in both Summer and Winter in Taiwan. RESULTS PM2.5 exposures were 12.6 ± 8.9 µg/m3. After adjusting for confounding factors using the general additive mixed model, the standard deviations of all normal to normal intervals reduced by 3.68% (95% confidence level (CI) = 3.06-4.29%) and the ratios of low-frequency power to high-frequency power increased by 3.86% (CI = 2.74-4.99%) for an IQR of 10.7 µg/m3 PM2.5, with impacts lasting for 4.5-5 h. The top three exposure sources were environmental tobacco smoke, incense burning, and cooking, contributing PM2.5 increase of 8.53, 5.85, and 3.52 µg/m3, respectively, during 30-min intervals. SIGNIFICANCE This is a pioneer in demonstrating application of novel LCS devices to assessing close-to-reality PM2.5 exposure and exposure-health relationships. Significant HRV changes were observed in healthy adults even at low PM2.5 levels.
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Affiliation(s)
- Shih-Chun Candice Lung
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan.
- Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan.
- Institute of Environmental Health, National Taiwan University, Taipei, Taiwan.
| | - Nathan Chen
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | | | - Shu-Chuan Hu
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | | | - Tzu-Yao Julia Wen
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | - Chun-Hu Liu
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
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Role of Neuroendocrine, Immune, and Autonomic Nervous System in Anorexia Nervosa-Linked Cardiovascular Diseases. Int J Mol Sci 2020; 21:ijms21197302. [PMID: 33023273 PMCID: PMC7582625 DOI: 10.3390/ijms21197302] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 12/19/2022] Open
Abstract
Anorexia nervosa represents a severe mental disorder associated with food avoidance and malnutrition. In patients suffering from anorexia nervosa, cardiovascular complications are the main reason leading to morbidity and mortality. However, the origin and pathological mechanisms leading to higher cardiovascular risk in anorexia nervosa are still unclear. In this aspect, the issue of exact pathological mechanisms as well as sensitive biomarkers for detection of anorexia nervosa-linked cardiovascular risk are discussed. Therefore, this review synthesised recent evidence of dysfunction in multiple neuroendocrine axes and alterations in the immune system that may represent anorexia nervosa-linked pathological mechanisms contributing to complex cardiovascular dysregulation. Further, this review is focused on identification of non-invasive biomarkers for the assessment of increased cardiovascular risk in anorexia nervosa that can be linked to a clinical application. Complex non-invasive assessment of cardiovascular autonomic regulation—cardiac vagal control (heart rate variability), sympathetic vascular activity (blood pressure variability), and cardiovascular reflex control (baroreflex sensitivity)—could represent a promising tool for early diagnosis, personalized therapy, and monitoring of therapeutic interventions in anorexia nervosa particularly at a vulnerable adolescent age.
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88
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Exploring the Mechanism on the Medullary Visceral Zone Inhibiting the Cholinergic Anti-inflammatory Pathway Induced by Sepsis. Mediators Inflamm 2020; 2020:1320278. [PMID: 33061821 PMCID: PMC7542527 DOI: 10.1155/2020/1320278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/23/2020] [Accepted: 08/31/2020] [Indexed: 12/29/2022] Open
Abstract
Inflammatory storm is an important pathological mechanism of multiple organ dysfunction, and it is associated with most deaths in septic patients, deserving to be studied. Recent findings have confirmed that the Medullary Visceral Zone (MVZ) regulates inflammation and immunity through the cholinergic anti-inflammatory pathway (CAP), but how sepsis affects the MVZ and leads to uncontrolled inflammation remain unclear. The current study reported that sepsis induced MVZ to inhibit CAP which underlies the inflammation storm. Our studies have shown that the rat models of sepsis prepared by cecal ligation and puncture had a higher inflammatory level, higher mortality, and higher Murine Sepsis Score. In septic rats, some indicators of heart rate variability (HRV) such as SDNN, HF band, RMSSD, SD1, and SD2 significantly reduced. In MVZ of septic rats, many cholinergic and catecholaminergic neurons showed apoptotic, with low expressions of tyrosine hydroxylase and choline acetyltransferase. The α7nAChR agonist GTS-21 can improve these pathologies, while the α7nAChR antagonist MLA is the opposite. Our study demonstrates for the first time that cholinergic and catecholaminergic neurons in MVZ went through significant apoptosis and inactiveness in sepsis, which contributes to the inhibition of CAP and acceleration of the inflammation storm in early sepsis. Intervening with CAP has a significant effect on the activity and apoptosis of MVZ neurons while altering systemic inflammation and immunity; in addition, for the first time, we confirmed that some indicators of HRV such as SDNN, HF band, RMSSD, SD1, and SD2 can reflect the activity of CAP, but the CAP interference had little effect on these indicators.
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89
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Rab SL, Admon R. Parsing inter- and intra-individual variability in key nervous system mechanisms of stress responsivity and across functional domains. Neurosci Biobehav Rev 2020; 120:550-564. [PMID: 32941963 DOI: 10.1016/j.neubiorev.2020.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 08/21/2020] [Accepted: 09/03/2020] [Indexed: 12/16/2022]
Abstract
Exposure to stressful events is omnipresent in modern human life, yet people show considerable heterogeneity in the impact of stress exposure(s) on their functionality and overall health. Encounter with stressor(s) is counteracted by an intricate repertoire of nervous-system responses. This narrative review starts with a brief summary of the vast evidence that supports heart rate variability, cortisol secretion, and large-scale cortical network interactions as kay physiological, endocrinological, and neural mechanisms of stress responsivity, respectively. The second section highlights potential sources for inter-individual variability in these mechanisms, by focusing on biological, environmental, social, habitual, and psychological factors that may influence stress responsivity patterns and thus contribute to heterogeneity in the impact of stress exposure on functionality and health. The third section introduces intra-individually variability in stress responsivity across functional domains as a novel putative source for heterogeneity in the impact of stress exposure. Challenges and future directions are further discussed. Parsing inter- and intra-individual variability in nervous-system mechanisms of stress responsivity and across functional domains is critical towards potential clinical translation.
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Affiliation(s)
- Sharona L Rab
- Department of Psychology, University of Haifa, Haifa, Israel
| | - Roee Admon
- Department of Psychology, University of Haifa, Haifa, Israel; The Integrated Brain and Behavior Research Center (IBBRC), University of Haifa, Haifa, Israel.
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90
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Csoltova E, Mehinagic E. Where Do We Stand in the Domestic Dog ( Canis familiaris ) Positive-Emotion Assessment: A State-of-the-Art Review and Future Directions. Front Psychol 2020; 11:2131. [PMID: 33013543 PMCID: PMC7506079 DOI: 10.3389/fpsyg.2020.02131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 07/30/2020] [Indexed: 12/19/2022] Open
Abstract
Although there have been a growing number of studies focusing on dog welfare, the research field concerning dog positive-emotion assessment remains mostly unexplored. This paper aims to provide a state-of-the-art review and summary of the scattered and disperse research on dog positive-emotion assessment. The review notably details the current advancement in dog positive-emotion research, what approaches, measures, methods, and techniques have been implemented so far in emotion perception, processing, and response assessment. Moreover, we propose possible future research directions for short-term emotion as well as longer-term emotional states assessment in dogs. The review ends by identifying and addressing some methodological limitations and by pointing out further methodological research needs.
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91
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Sant'Ana LDO, Machado S, Ribeiro AADS, Dos Reis NR, Campos YDAC, da Silva JGV, Scartoni FR, Brown AF, Monteiro ER, Novaes JDS, Vianna JM, Budde H. Effects of Cardiovascular Interval Training in Healthy Elderly Subjects: A Systematic Review. Front Physiol 2020; 11:739. [PMID: 32848808 PMCID: PMC7412615 DOI: 10.3389/fphys.2020.00739] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/08/2020] [Indexed: 11/13/2022] Open
Abstract
The aim of this review is to demonstrate the effects of cardiovascular interval training (IT) on healthy elderly subjects. We used the recommendations of the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. The following variables were observed: resting heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MBP), heart rate variability (HRV), baroreflex activity (BA), and maximal oxygen uptake (VO2max). Studies were searched for in the MedLine, PubMed, and Sport Discus databases considering publications between 1990 and 2019. To find the studies, the keywords used were “Interval and Elderly Training” or “Interval Training and Baroreflex Sensing” or “Interval Training and Aging and Pressure Arterial and Blood Pressure Training” or “Interval Training and Variation in Aging and Heart Rate” or “Interval Training and Sensitivity to the Elderly and Baroreflex” or “Interval Training and Variability in the Elderly and Heart Rate.” The systematic search identified 1,140 hits. The analysis of the study was performed through a critical review of the content. One thousand one hundred forty articles were identified. Of these, 1,108 articles were excluded by checking the articles and abstracts. Finally, 32 studies were selected for full reading while 26 studies were eliminated because they did not contain a methodology according to the purpose of this review. Thus, six studies were included for the final analysis. The PEDro score was used for analyzing the study quality and found 4,8 ± 1,3 points (range: 3–6). Positive results were found with the different IT protocols in the observed variables. Results show that IT protocols can be an efficient method for functional improvement of cardiovascular and cardiorespiratory variables in the healthy elderly, especially HR, SBP, DBP, MAP, HRV, BA, and VO2max. However, this method can be included in the prescription of aerobic training for the elderly to obtain conditional improvements in the cardiovascular system, thus being an important clinical intervention for the public.
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Affiliation(s)
- Leandro de Oliveira Sant'Ana
- Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora, Brazil.,Sport and Exercise Science Laboratory, Catholic University of Petrópolis, Rio de Janeiro, Brazil
| | - Sérgio Machado
- Laboratory of Physical Activity Neuroscience, Salgado de Oliveira University, Rio de Janeiro, Brazil
| | | | | | | | | | | | - Amanda Fernandes Brown
- School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Estêvão Rios Monteiro
- School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jefferson da Silva Novaes
- School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jeferson Macedo Vianna
- Post Graduate Program in Physical Education, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Henning Budde
- Faculty of Human Sciences, Medical School Hamburg, University of Applied Science and Medical University, Hamburg, Germany
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Williams J, D’Cunha NM, Anstice N, McKune A, Naumovski N. Effect of Green Tea Amino Acid L-Theanine on Physiological Responses: A Protocol for Clinical Trial. EXPLORATORY RESEARCH AND HYPOTHESIS IN MEDICINE 2020; 000:1-8. [DOI: 10.14218/erhm.2020.00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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93
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Zhang Z, Xiao X, Ma W, Li J. Napping in Older Adults: A Review of Current Literature. CURRENT SLEEP MEDICINE REPORTS 2020; 6:129-135. [PMID: 33777656 DOI: 10.1007/s40675-020-00183-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Purpose of Review Daytime napping-frequently reported among older populations-has attracted increasing attention in geriatric research due to its association with multiple health conditions. This review aims to integrate the latest knowledge about napping in older adults to provide implications for future research. Recent Findings The prevalence of napping in older adults ranges from 20% to 60% in different studies, but has been consistently reported to be higher than in other age groups. Age-related changes in circadian rhythm and sleep patterns, cultural beliefs, chronic conditions, medications, and lifestyle changes contribute to the high prevalence of napping in older adults. Daytime napping has been associated with multiple health conditions in older adults. Naps of short duration (e.g., 30 minutes) are reported in adults with better health; naps with longer durations (e.g., >90 minutes) have been linked to adverse cardiovascular and diabetes outcomes, declining cognitive function, and increased mortality. Current evidence in the literature, however, is not enough for us to determine the exact role of napping in the health of older adults. Summary Longitudinal and interventional studies are needed to investigate the influence of napping and the critical parameters such as duration, timing, and frequency on health in older adults and the underlying mechanisms. A combination of objective and self-reported measurements of napping are recommended instead of self-reported data only.
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Affiliation(s)
- Zeyu Zhang
- Johns Hopkins University School of Nursing.,Huazhong University of Science and Technology, Tongji Medical College, School of Nursing
| | - Xueling Xiao
- Johns Hopkins University School of Nursing.,Central South University, Xiangya School of Nursing
| | - Weixia Ma
- Johns Hopkins University School of Nursing.,Shandong Provincial Hospital affiliated with Shandong University
| | - Junxin Li
- Johns Hopkins University School of Nursing
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94
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Dominguez-Balmaseda D, Diez-Vega I, Larrosa M, San Juan AF, Issaly N, Moreno-Pérez D, Burgos S, Sillero-Quintana M, Gonzalez C, Bas A, Roller M, Pérez-Ruiz M. Effect of a Blend of Zingiber officinale Roscoe and Bixa orellana L. Herbal Supplement on the Recovery of Delayed-Onset Muscle Soreness Induced by Unaccustomed Eccentric Resistance Training: A Randomized, Triple-Blind, Placebo-Controlled Trial. Front Physiol 2020; 11:826. [PMID: 32848820 PMCID: PMC7396658 DOI: 10.3389/fphys.2020.00826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/19/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND There is an increasing interest in the use of eccentric muscle exercise to improve physical condition, especially with regards to its health-related benefits. However, it is known that unaccustomed eccentric exercise causes muscle damage and delayed pain, commonly defined as "delayed onset muscle soreness" (DOMS). The efficacy of herbal preparations in subjects suffering from DOMS has been reported in a few previous studies with small or moderate outcome measures related to muscle recovery. The present study aimed to evaluate the effects of a polyherbal mixture containing whole Zingiber officinale Roscoe and Bixa orellana L., powders called ReWin(d), in young male athletes suffering from DOMS induced by a 1 h session of plyometric exercises. METHODS Thirty-three young male athletes participated in this randomized, Triple-blind, placebo-controlled trial: 17 of them assigned to the ReWin(d) group and 16 of them to the placebo group. Creatine kinase (CK) was measured as a muscle damage marker, pain was assessed using the Visual Analog Scale (VAS), muscle performance was measured through half-squat exercise (HS) monitored with an accelerometer (Encoder), and heart rate variability (HRV) was monitored for 5 min with the subjects in the supine position. All determinations were performed before and after the eccentric session and 24, 48, and 72 h after the session. RESULTS The eccentric exercise session caused an increase in CK at 24 and 48 h after exercise intervention in both groups (p < 0.001). There was no interaction between groups regarding muscle damage. The pain increased after the training session in both groups (p < 0.001), and a significant interaction was observed between groups at 48 h after exercise (p = 0.004). Lower limb muscular power showed a significant interaction between groups 24 h after exercise (p = 0.049); the placebo group showed a reduction in muscle power compared to the ReWin(d) group. The LF/HF ratio decreased significantly at 72 h after exercise in the herbal group but not in the placebo group. CONCLUSION The herbal supplement maintained the maximum power of the lower limbs and attenuated muscle pain. CLINICAL TRIAL REGISTRATION www.ClinicalTrials.gov, identifier NCT03961022.
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Affiliation(s)
- Diego Dominguez-Balmaseda
- Research Group on Nutrition, Physical Activity and Health, Faculty of Biomedical Sciences Universidad Europea, Madrid, Spain
| | - Ignacio Diez-Vega
- Research Group on Exercise, Health and Applied Biomarkers, Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Mar Larrosa
- Research Group on Nutrition, Physical Activity and Health, Faculty of Biomedical Sciences Universidad Europea, Madrid, Spain
| | - Alejandro F. San Juan
- Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit cnica de Madrid, Madrid, Spain
| | | | - Diego Moreno-Pérez
- Departamento de Educación, Métodos de Investigación y Evaluación, Universidad Pontificia de Comillas, Instituto Católico de Artes e Industrias-Instituto Católico de Administración y Dirección de Empresas, Madrid, Spain
| | - Silvia Burgos
- Research Group on Exercise, Health and Applied Biomarkers, Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Manuel Sillero-Quintana
- Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit cnica de Madrid, Madrid, Spain
| | - Cristina Gonzalez
- Research Group on Exercise, Health and Applied Biomarkers, Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Andrea Bas
- Research Group on Exercise, Health and Applied Biomarkers, Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - Margarita Pérez-Ruiz
- Research Group on Exercise, Health and Applied Biomarkers, Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
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95
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Tatschl JM, Hochfellner SM, Schwerdtfeger AR. Implementing Mobile HRV Biofeedback as Adjunctive Therapy During Inpatient Psychiatric Rehabilitation Facilitates Recovery of Depressive Symptoms and Enhances Autonomic Functioning Short-Term: A 1-Year Pre-Post-intervention Follow-Up Pilot Study. Front Neurosci 2020; 14:738. [PMID: 32792897 PMCID: PMC7386054 DOI: 10.3389/fnins.2020.00738] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE New treatment options for depression are warranted, due to high recurrence rates. Recent research indicates benefits of heart rate variability biofeedback (HRVBF) on symptom recovery and autonomic functioning in depressed individuals. Slow-paced breathing-induced amplification of vagus nerve activity is the main element of HRVBF. Thus, the latter represents a safe and non-invasive complementary depression treatment. However, its efficacy in patients undergoing inpatient psychiatric rehabilitation receiving highly comprehensive treatments has not been evaluated. METHODS Ninety-two inpatients were randomly assigned to an intervention group (IG) or control group (CG). While the latter received the standard treatment only, adjunctive HRVBF was provided to the IG over 5 weeks. Depression severity and heart rate variability (HRV) were assessed before (pre) and after 5 weeks (post). Moreover, 1-year follow-up depression scores were available for 30 participants. RESULTS Although depression improved in both groups, the IG exhibited significantly larger improvements at post-assessment ( η p 2 = 0.065) and significant increases in resting LF-HRV (d = 0.45) and cardiorespiratory coherence (d = 0.61). No significant effects for RMSSD, SDNN, HF-HRV, or HR were found (ps > 0.05). Additionally, the IG showed a medium- to large-sized reduction in resting respiratory rate from 13.2 to 9.8 breaths per minute (p < 0.001, d = 0.86), with the CG exhibiting only a small decrease from 13.5 to 12.4 (p = 0.49; d = 0.35). While the IG exhibited significantly lower depression scores at post-assessment (p = 0.042, d = 0.79), this effect decreased during follow-up (p = 0.195, d = 0.48). CONCLUSION HRVBF as adjuvant therapy during inpatient psychiatric rehabilitation facilitated depression recovery. Additionally, amplified LF-HRV as well as cardiorespiratory coherence at rest and a decrease in resting breathing frequency was observed in the HRVBF group. These findings emphasize HRVBF's value as complementary therapy regardless of concurrent treatments. Moreover, these incremental benefits could serve as resource even after the actual training period. However, the additional antidepressant gains vanish during the long-term follow-up, indicating the need for more intense training or regular practice afterward, respectively. Thus, future studies are warranted to examine how the initial benefits of HRVBF during inpatient psychiatric rehabilitation can be preserved post discharge.
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Affiliation(s)
- Josef M. Tatschl
- Health Psychology Unit, Institute of Psychology, University of Graz, Graz, Austria
| | | | - Andreas R. Schwerdtfeger
- Health Psychology Unit, Institute of Psychology, University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
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96
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Armstrong K, Gokal R, Todorsky W. Neuromodulating Influence of Two Electroacupuncture Treatments on Heart Rate Variability, Stress, and Vagal Activity. J Altern Complement Med 2020; 26:928-936. [PMID: 32654498 DOI: 10.1089/acm.2019.0267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Introduction: Although the clinical use of electro-acupuncture is widespread, the neuromodulating influence of various applied frequencies is not well established. Objectives: Heart rate variability (HRV), stress and parasympathetic recovery are closely related to health, longevity and vitality in humans. This study was undertaken to determine the influence of different electro-therapy frequencies on various autonomic nervous system markers when applied to a Battlefield Acupuncture Protocol (BFA). Design: A detailed comparison of autonomic nervous system (ANS) response to low frequency (LF) 2.5 Hz electro-acupuncture and mid-frequency (MF) 15 Hz electro-acupuncture applied by point stimulation to acupuncture points was undertaken on 2 groups of 12 patients. Interventions: Both LFEA and MFEA were applied to Battlefield Acupuncture protocol, consisting of five (5) key acupuncture ear (auricular) points that isolate the autonomic nervous system (ANS) and central nervous system's role in the chronic/acute pain cycle. Evaluations entailed an advanced status of autonomic nervous system (ANS) function through Electro-Cardiogram (ECG) baseline markers reflecting: sympathetic stress (SI); parasympathetic vagal tone (high frequency [HF]) and heart rate variability (HRV = total power). All were repeated subsequent to electro-therapy using 2 separate electro-modalities of low-frequency (2.5 Hz) electro-acupuncture (LFEA) and Mid-Frequency (15 Hz) electro-acupuncture (MFEA). All 24 patients received one (1) elector-acupuncture session. Results: The autonomic nervous system response to LFEA (2.5 Hz) reflected a statistically significant pre-post improvement in three of the markers collected: heart rate variability (HRV) improved by 61% [p = 0.002]; sympathetic stress (SI) reduced 42% [p = 0.002]; and parasympathetic vagal tone (HF) increased 56% [p = 0.017]. In contrast, MFEA (15 Hz) showed positive but non-significant changes in outcomes in all nervous system markers. Conclusions: The autonomic nervous system response with LFEA showed a measurable reduction in sympathetic stress with subsequent improvement in vagal tone, and HRV. This positive sympathetic nervous system deactivation from LFEA application shown in this study could have a major impact on other pathologies related to human health and longevity. Further cohort studies are warranted to determine the validity of these outcomes.
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Affiliation(s)
- Kelly Armstrong
- Center for Pain & Stress Research Ltd., St. Augustine, FL, USA
| | - Raman Gokal
- University of Manchester, Royal Infirmary, Manchester, United Kingdom.,Center for Pain & Stress Research Ltd., Toronto, Canada
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97
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Snacking on Whole Almonds for Six Weeks Increases Heart Rate Variability during Mental Stress in Healthy Adults: A Randomized Controlled Trial. Nutrients 2020; 12:nu12061828. [PMID: 32575387 PMCID: PMC7353422 DOI: 10.3390/nu12061828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 12/19/2022] Open
Abstract
Cardiac autonomic regulation can be indirectly measured by heart rate variability (HRV). Low HRV, which can be induced by mental stress, is a predictor of risk of sudden cardiac death. Few studies have investigated cause-and-effect relationships between diet and HRV. Nut consumption is associated with CVD risk reduction, but the impact on HRV, particularly in response to stress, is unclear. Men and women (30–70 y) with above average risk of developing CVD were randomly assigned in a 6-week randomized, controlled, parallel arm trial to consume either whole almond or isocaloric control snacks (20% of daily estimated energy requirement). Control snacks contained the average nutrient profile of UK snacks. Five-minute periods of supine heart rate (HR) and HRV were measured at resting and during mental stress (Stroop color-word test) at baseline and six weeks. High frequency (HF) power, which reflects parasympathetic regulation of HR, was increased following almonds during the mental stress task relative to control (mean difference between groups 124 ms2; 95% CI 11, 237; p = 0.031, n = 105), but other indices were unaffected. Snacking on whole almonds instead of typical snacks may reduce risk of CVD partly by ameliorating the suppression of HRV during periods of mental stress.
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98
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Lopresti AL. Association between Micronutrients and Heart Rate Variability: A Review of Human Studies. Adv Nutr 2020; 11:559-575. [PMID: 31942924 PMCID: PMC7231600 DOI: 10.1093/advances/nmz136] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/05/2019] [Accepted: 12/19/2019] [Indexed: 02/06/2023] Open
Abstract
Heart rate variability (HRV) is a measure of the variation between consecutive heartbeats. It provides a marker of the interplay between the parasympathetic and sympathetic nervous systems, and there is an increasing body of evidence confirming an increased HRV is associated with better mental and physical health. HRV may be a useful marker of stress as it represents the ability of the heart to respond to a variety of physiological and environmental stimuli. HRV tends to decrease as we age and is positively associated with physical activity, fitness, and healthier lifestyles. The relation between HRV and micronutrients (vitamins and minerals) has also received some attention in the research literature. In this review, cross-sectional and interventional studies on human populations examining the relation between HRV and micronutrients are appraised. Micronutrients identified and examined in this review include vitamins D, B-12, C, and E; the minerals magnesium, iron, zinc, and coenzyme Q10; and a multivitamin-mineral formula. Due to the paucity of research and significant heterogeneity in studies, definitive conclusions about the effects of these micronutrients on HRV cannot be made at this time. However, there is accumulating evidence suggesting deficiencies in vitamins D and B-12 are associated with reduced HRV, and zinc supplementation during pregnancy can have positive effects on HRV in offspring up until the age of 5 y. To further elucidate the relation between micronutrients and HRV, additional robustly designed and adequately powered studies are required.
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Affiliation(s)
- Adrian L Lopresti
- College of Science, Health, Engineering, and Education, Murdoch University, Perth, Western Australia, Australia,Clinical Research Australia, Perth, Western Australia, Australia,Address correspondence to ALL (e-mail: )
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99
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George K, S IJ, Thomas NS, R B, K B. Gender-Based Vegetarian and Nonvegetarian Dietary Impact on Cardiac Autonomic Function of Heart Rate Variability. J Am Coll Nutr 2020; 40:237-241. [PMID: 32314942 DOI: 10.1080/07315724.2020.1753130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objective: Cardiovascular disease is one among the major mortality threats throughout the world. Autonomic activity of the nervous system can be examined by heart rate variability (HRV) analysis. Association of sympathetic and parasympathetic activities is directly related to HRV modulation. The aim of the study is to determine variations in HRV parameters among adult/adolescent male and female subjects due to vegetarian and nonvegetarian diet.Method: Ninety undergraduate students in each male and female group (N = 180) volunteered for the study. Based upon food habits, male and female subjects were categorized into four groups. Short-term (5-minute) heart rate recordings were measured from the subjects in a seated position before breakfast with minimum of 12 hours' fasting. Two-way analysis of variance was performed among the time and frequency domain variables.Results: Time domain variables are observed as significant (p < 0.05) between vegetarian males and females and also (p < 0.05) between male vegetarian and female nonvegetarians for standard deviation of NN intervals. Frequency domain HRV indices such as low frequency (LF; p = 0.01), high frequency (HF; p = 0.0001), and LF/HF (p < 0.001) resulted between male and female vegetarians. Significance of LF (p = 0.02), HF (p < 0.0001), and LF/HF (p < 0.01) was measured between male vegetarians and female nonvegetarians. LF (p = 0.02), HF (p = 0.04), and LF/HF (p = 0.002) resulted between nonvegetarian males and females. HF (p = 0.05) was enumerated between male vegetarians and nonvegetarians.Conclusions: Significant predominance of sympathetic cardiac activity was observed among male nonvegetarian consumers more than female vegetarians. Analysis demonstrates that the gender-based influence of vegetarian and nonvegetarian diet has significant correlation under HRV measurements.
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Affiliation(s)
- Kiran George
- Department of Biomedical Engineering, Chennai Institute of Technology, Chennai, India
| | - Immaculate Joy S
- Department of Electronics and Communication Engineering, Veltech Multitech Dr Rangarajan Dr Sakunthala Engineering College, Chennai, India
| | - Nisha Susan Thomas
- Department of Biochemistry and Biotechnology, Annamalai University, India
| | - Balamurali R
- Department of Electronics and Communication Engineering, Chennai Institute of Technology, Chennai, India
| | - Baskaran K
- Bio Medical Engineer and Regional Manager, BIOPAC Systems Inc., GenTech Pvt. Ltd., New Delhi, India
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100
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Speer KE, Semple S, Naumovski N, McKune AJ. Heart rate variability for determining autonomic nervous system effects of lifestyle behaviors in early life: A systematic review. Physiol Behav 2020; 217:112806. [PMID: 31954147 DOI: 10.1016/j.physbeh.2020.112806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND An unhealthy lifestyle negatively alters autonomic nervous system (ANS) activity as reflected by decreased heart rate variability (HRV), increasing cardiovascular disease (CVD) risk. Research investigating the effect of modifiable lifestyle factors on ANS activity in young children is limited. Early identification of these risk factors is vital to improving long-term individual and public health outcomes. A systematic review was conducted to assess the effect of maternal or child modifiable lifestyle factors on child ANS activity. METHODS Following the 2009 PRISMA guidelines, three electronic databases were searched from February 2018 - July 2019 for articles describing human trials between 1996 - 2019. Included studies examined ANS activity of children between 28 weeks gestational age - 6 years in relation to modifiable lifestyle CVD risk factors. RESULTS Twenty-six studies fulfilled inclusion criteria. Sixteen studies reported that modifiable lifestyle factors significantly influenced the HRV of children. Increased HRV was significantly associated with higher maternal zinc and omega-3 fatty acid intake, regular maternal aerobic exercise and a non-smoking environment. Child diet and body composition demonstrated some support for an association between these modifiable lifestyle factors and child HRV. CONCLUSION There is cross-sectional evidence supporting an association between maternal lifestyle factors and child HRV. Evidence is less supportive of a relationship between child modifiable lifestyle factors and child HRV. Monitoring the effects of lifestyle interventions on the ANS via HRV measurements of both mother and child may identify child CVD risk.
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Affiliation(s)
- Kathryn E Speer
- Faculty of Health, Discipline of Sport and Exercise Science/University of Canberra, Canberra, (ACT,) Australia; Research Institute for Sport and Exercise/University of Canberra, Canberra, (ACT,) Australia.
| | - Stuart Semple
- Faculty of Health, Discipline of Sport and Exercise Science/University of Canberra, Canberra, (ACT,) Australia; Research Institute for Sport and Exercise/University of Canberra, Canberra, (ACT,) Australia
| | - Nenad Naumovski
- Faculty of Health, University of Canberra, Canberra, (ACT,) Australia
| | - Andrew J McKune
- Faculty of Health, Discipline of Sport and Exercise Science/University of Canberra, Canberra, (ACT,) Australia; Research Institute for Sport and Exercise/University of Canberra, Canberra, (ACT,) Australia; Discipline of Biokinetics, Exercise and Leisure Sciences, School of Health Sciences/ University of KwaZulu-Natal, Durban, (KwaZulu-Natal,) South Africa
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