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Ballesteros S, Audifren M, Badache A, Belkin V, Giannaki CD, Kaltsatou A, Marusic U, Ziaaldini MM, Peskar M, Reales JM, Rieker JA, Stavrinou PS, Tortosa-Martinez J, Voelcker-Rehage C, Netz Y. Correction: Effects of chronic physical exercise on executive functions and episodic memory in clinical and healthy older adult populations: a systematic review and meta‑analysis protocol. Syst Rev 2024; 13:125. [PMID: 38720344 PMCID: PMC11077769 DOI: 10.1186/s13643-024-02545-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
Affiliation(s)
| | | | - Andreea Badache
- School of Health Sciences, Orebro University, Orebro, Sweden
| | - Vera Belkin
- Institute of Sport and Exercise Sciences, University of Munster, Munster, Germany
| | | | - Antonia Kaltsatou
- Department of Physical Education and Sport Science, University of Thessaly, Volos, Greece
| | - Uros Marusic
- Institute for Kinesiology Research, Science and Research Centre Koper, Koper, Slovenia
- Department of Health Sciences, Alma Mater Europaea - ECM, Maribor, Slovenia
| | | | - Manca Peskar
- Institute for Kinesiology Research, Science and Research Centre Koper, Koper, Slovenia
- Department of Psychology and Ergonomics, Faculty V: Mechanical Engineering and Transport Systems, Technische Universitat Berlin, Berlin, Germany
| | | | - Jennifer A Rieker
- Department of Psychology, Faculty of Life and Natural Sciences, University of Nebrija, Madrid, Spain
| | | | - Juan Tortosa-Martinez
- Department of General and Specific Didactics, Universidad de Alicante, Alicante, Spain
| | | | - Yael Netz
- The Levinsky-Wingate Academic Center, Tel‑Aviv, Israel
- Department of Health Promotion and Rehabilitation, Lithuanian Sports University, Kaunas, Lithuania
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Kaltsatou A, Theodorou S, Orologas A. Be Cool: A Holistic and Innovative Approach to Rehabilitation in Multiple Sclerosis: Study Protocol for a Randomized Controlled Trial. Healthcare (Basel) 2024; 12:870. [PMID: 38727428 PMCID: PMC11083362 DOI: 10.3390/healthcare12090870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
(1) Background: Individuals with multiple sclerosis (MS) have to deal with numerous symptoms that adversely impact their quality of life. While pharmaceutical treatments offer some relief, they often fall short of addressing the full spectrum of MS symptoms. To bridge this gap, we introduce the Be Cool rehabilitation program, a comprehensive protocol designed to enhance the well-being and life quality of MS individuals. (2) Methods: The Be Cool program is a multifaceted approach that combines exercise training, nutritional guidance, psychological support, and cooling strategies. Adapted to meet the unique needs of MS individuals, this program aims to mitigate symptoms, promote physical and mental health, and improve overall quality of life. The integration of these strategies addresses the complex challenges faced by MS individuals, offering a holistic solution beyond conventional medication. (3) Conclusions: The Be Cool rehabilitation protocol is designed to offer individuals with MS a comprehensive approach to symptom management, fostering improvements in their quality of life. By addressing the multifaceted nature of MS through an integrated strategy, the program holds promise for more effective management of the condition.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, School of Physical Education and Sport Science, University of Thessaly, 42130 Trikala, Greece
- Greek Multiple Sclerosis Society, 42100 Thessaloniki, Greece; (S.T.); (A.O.)
| | - Sofia Theodorou
- Greek Multiple Sclerosis Society, 42100 Thessaloniki, Greece; (S.T.); (A.O.)
| | - Anastasios Orologas
- Greek Multiple Sclerosis Society, 42100 Thessaloniki, Greece; (S.T.); (A.O.)
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Ballesteros S, Audifren M, Badache A, Belkin V, Giannaki CD, Kaltsatou A, Marusic U, Ziaaldini MM, Pescar M, Reales JM, Rieker JA, Stavrinou PS, Tortosa-Martinez J, Voelcker-Rehage C, Netz Y. Effects of chronic physical exercise on executive functions and episodic memory in clinical and healthy older adult populations: a systematic review and meta-analysis protocol. Syst Rev 2024; 13:98. [PMID: 38561810 PMCID: PMC10983622 DOI: 10.1186/s13643-024-02517-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Executive functions (EFs) and episodic memory are fundamental components of cognition that deteriorate with age and are crucial for independent living. While numerous reviews have explored the effect of exercise on these components in old age, these reviews screened and analyzed selected older adult populations, or specific exercise modes, thus providing only limited answers to the fundamental question on the effect of exercise on cognition in old age. This article describes the protocol for a systematic review and multilevel meta-analytic study aiming at evaluating the effectiveness of different types of chronic exercise in improving and/or maintaining EFs and long-term episodic memory in older adults. METHODS AND ANALYSIS The study protocol was written in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Several databases will be searched. Randomized controlled trials (RCTs) conducted in older adults aged ≥ 60 years providing any kind of planned, structured, and repetitive exercise interventions, and EFs and/or episodic memory measures as outcomes, published in English in peer-reviewed journals and doctoral dissertations will be included. Two independent reviewers will screen the selected articles, while a third reviewer will resolve possible conflicts. The Cochrane risk-of-bias tool will be used to assess the quality of the studies. Finally, data will be extracted from the selected articles, and the formal method of combining individual data from the selected studies will be applied using a random effect multilevel meta-analysis. The data analysis will be conducted with the metafor package in R. DISCUSSION AND CONCLUSION This review will synthesize the existing evidence and pinpoint gaps existing in the literature on the effects of exercise on EFs and episodic memory in healthy and unhealthy older adults. Findings from this meta-analysis will help to design effective exercise interventions for older adults to improve and/or maintain EFs and episodic memory. Its results will be useful for many researchers and professionals working with older adults and their families. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42022367111.
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Affiliation(s)
| | | | - Andreea Badache
- School of Health Sciences, Örebro University, Örebro, Sweden
| | - Vera Belkin
- Institute of Sport and Exercise Sciences, University of Münster, Münster, Germany
| | | | - Antonia Kaltsatou
- Department of Physical Education and Sport Science, University of Thessaly, Volos, Greece
| | - Uros Marusic
- Institute for Kinesiology Research, Science and Research Centre Koper, Koper, Slovenia
| | | | - Manca Pescar
- Institute for Kinesiology Research, Science and Research Centre Koper, Koper, Slovenia
- Department of Psychology and Ergonomics, Faculty V: Mechanical Engineering and Transport Systems, Technische Universität Berlin, Berlin, Germany
| | | | - Jennifer A Rieker
- Department of Psychology, Faculty of Life and Natural Sciences, University of Nebrija, Madrid, Spain
| | | | - Juan Tortosa-Martinez
- Department of General and Specific Didactics, Universidad de Alicante, Alicante, Spain
| | | | - Yael Netz
- The Levinsky-Wingate Academic Center, Tel-Aviv, Israel
- Department of Health Promotion and Rehabilitation, Lithuanian Sports University, Kaunas, Lithuania
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Kaltsatou A, Anifanti M, Flouris AD, Xiromerisiou G, Kouidi E. Validity of the CALERA Research Sensor to Assess Body Core Temperature during Maximum Exercise in Patients with Heart Failure. Sensors (Basel) 2024; 24:807. [PMID: 38339524 PMCID: PMC10857250 DOI: 10.3390/s24030807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Abstract
(1) Background: It is important to monitor the body core temperature (Tc) of individuals with chronic heart failure (CHF) during rest or exercise, as they are susceptible to complications. Gastrointestinal capsules are a robust indicator of the Tc at rest and during exercise. A practical and non-invasive sensor called CALERA Research was recently introduced, promising accuracy, sensitivity, continuous real-time analysis, repeatability, and reproducibility. This study aimed to assess the validity of the CALERA Research sensor when monitoring patients with CHF during periods of rest, throughout brief cardiopulmonary exercise testing, and during their subsequent recovery. (2) Methods: Twelve male CHF patients volunteered to participate in a 70-min protocol in a laboratory at 28 °C and 39% relative humidity. After remaining calm for 20 min, they underwent a symptom-limited stress test combined with ergospirometry on a treadmill, followed by 40 min of seated recovery. The Tc was continuously monitored by both Tc devices. (3) Results: The Tc values from the CALERA Research sensor and the gastrointestinal sensor showed no associations at rest (r = 0.056, p = 0.154) and during exercise (r = -0.015, p = 0.829) and a weak association during recovery (r = 0.292, p < 0.001). The Cohen's effect size of the differences between the two Tc assessment methods for rest, exercise, and recovery was 1.04 (large), 0.18 (none), and 0.45 (small), respectively. The 95% limit of agreement for the CALERA Research sensor was -0.057 ± 1.03 °C. (4) Conclusions: The CALERA sensor is a practical and, potentially, promising device, but it does not provide an accurate Tc estimation in CHF patients at rest, during brief exercise testing, and during recovery.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, 42100 Trikala, Greece; (A.K.); (A.D.F.)
| | - Maria Anifanti
- Sportsmedicine Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, 57000 Thermi, Greece;
| | - Andreas D. Flouris
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, 42100 Trikala, Greece; (A.K.); (A.D.F.)
| | - Georgia Xiromerisiou
- Department of Neurology, University Hospital of Larissa, University of Thessaly, 41110 Larissa, Greece;
| | - Evangelia Kouidi
- Sportsmedicine Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, 57000 Thermi, Greece;
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Chatzopoulou S, Dimitros E, Massaro M, Cicchella A, Jamurtas A, Kouidi E, Tsiptsios D, Kenny GP, Kaltsatou A. Blackcurrant Supplementation and Habitual Physical Activity Enhance Functional Capacity and Quality of Life in Previously Sedentary Older Women. Curr Aging Sci 2024; 17:CAS-EPUB-137483. [PMID: 38317475 DOI: 10.2174/0118746098261936231223164430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/06/2023] [Accepted: 11/17/2023] [Indexed: 02/07/2024]
Abstract
BACKGROUND Loss of functional capacity negatively impacts the quality of life in older adults. OBJECTIVE This single-site randomized controlled study examined whether short- (one week) and long-term (three months) blackcurrant supplementations combined with habitual physical activity would improve functional capacity and quality of life in previously sedentary older women. METHODS Thirty sedentary, healthy older women were randomly assigned to receive blackcurrant supplementation (400 mg of blackcurrant extract) (Polyphenol group, n=15; 74.2±10.0 years) or no supplementation (capsules of 400 mg of corn flour) (Placebo group, n=15; 72.8±8.7 years). Each group consumed two capsules daily for one week and three months, with a washout period of one week between the two phases. The polyphenol group was required to increase habitual activity levels. Participants underwent a functional capacity assessment consisting of a sixminute walk, sit-to-stand test, Berg balance scale measurement and quality of life evaluation with the Scale of Life Satisfaction Index (LSI) at the start, after one week, and after three months of supplementation. RESULTS Walking distance and time to sit-to-stand improved by 2.5% (p=0.005) and 7.5% (p=0.005), respectively, after one week in the polyphenol group. After 3 months, walking distance in the six-minute walk test increased by 12.3% (p=0.001) while the time to sit-to-stand decreased by 16% (p=0.002) in polyphenol compared to placebo, respectively. No differences in Berg balance scale were observed. Quality of life, indexed by LSI, improved by 39% (p=0.001) in the polyphenol compared to the placebo group. CONCLUSION Blackcurrant supplementation, combined with habitual activity, may enhance functional capacity and quality of life in older women, offering a potential strategy to maintain independence. However, future studies should address longer durations to validate these findings.
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Affiliation(s)
| | | | | | | | | | - Evangelia Kouidi
- Sports Medicine Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Greece
| | | | - Glen P Kenny
- Human and Environmental Physiology Research Unit, University of Ottawa
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6
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Kyrtsopoulos M, Tsiptsios D, Karapepera V, Karatzetzou S, Tsiakiri A, Manolis A, Leontidou E, Sousanidou A, Tsamakis K, Kaltsatou A, Trypsiani I, Nena E, Serdari A, Steiropoulos P, Tripsianis G. A Questionnaire-Based Cross-Sectional Study of Insomnia among Middle-Aged Adults from Greece's Northeastern Fringe, Thrace. Maedica (Bucur) 2023; 18:404-412. [PMID: 38023757 PMCID: PMC10674121 DOI: 10.26574/maedica.2023.18.3.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Background, aim: Insomnia constitutes a common and very debilitating disorder in modern societies. A better understanding of the etiologies and risk factors, modifiable or not, of insomnia is essential for a swifter diagnosis and a more appropriate treatment, mitigating its toll on individuals and society. To this purpose, the present study assessed the prevalence of insomnia in a randomly-selected adult population and its relation with a diverse range of socio-demographic characteristics and medical conditions. Methods:A sample of 771 participants aged 24 to 89 years (mean age 58±13 years; 42.7% women) was randomly selected from the general population of Thrace, a prefecture in Northeastern Greece with special cultural considerations, using a two-stage stratified sampling scheme. The Greek version of the Athens Insomnia Scale (AIS) was utilized to evaluate the presence of insomnia. Moreover, the Berlin Questionnaire for Obstructive Sleep Apnea and the Epworth Sleepiness Scale for Excessive Daytime Sleepiness were also utilized. Results:A total of 141 study participants (18.3%) were found to suffer from insomnia. Impaired sleep maintenance was reported as the most frequent symptom (62%). The following independent statistically significant risk factors emerged (p-value <0.05): BMI ≥35 (aOR=2.91), divorced or widowed individuals (aOR=2.23), female gender (aOR=1.76), age >70 years (aOR=1.61), snoring (aOR=1.61), midday sleep (aOR=1.58) and presence of chronic disease (aOR=1.55). Conclusion:The prevalence of isomnia in Thrace aligns with similar studies conducted in Greece and internationally. A multitude of socio-demographic characteristics and diseases, especially chronic, predispose to insomnia.
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Affiliation(s)
- Mihail Kyrtsopoulos
- Neurology Department, Democritus University of Thrace, Alexandroupolis Greece
| | - Dimitrios Tsiptsios
- Neurology Department, Democritus University of Thrace, Alexandroupolis Greece
| | - Vaya Karapepera
- Neurology Department, Democritus University of Thrace, Alexandroupolis Greece
| | - Stella Karatzetzou
- Neurology Department, Democritus University of Thrace, Alexandroupolis Greece
| | - Anna Tsiakiri
- Neurology Department, Democritus University of Thrace, Alexandroupolis Greece
| | - Apostolos Manolis
- Laboratory of Medical Statistics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Eleni Leontidou
- Laboratory of Medical Statistics, Democritus University of Thrace, Alexandroupolis, Greece
| | | | | | - Antonia Kaltsatou
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, Greece
| | - Ioanna Trypsiani
- Laboratory of Medical Statistics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Evangelia Nena
- Laboratory of Hygiene and Environmental Protection, Democritus University of Thrace, Alexandroupolis, Greece
| | - Aspasia Serdari
- Department of Child and Adolescent, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Gregory Tripsianis
- Laboratory of Medical Statistics, Democritus University of Thrace, Alexandroupolis, Greece
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Karatzetzou S, Tsiptsios D, Sousanidou A, Fotiadou S, Christidi F, Kokkotis C, Gkantzios A, Stefas E, Vlotinou P, Kaltsatou A, Aggelousis N, Vadikolias K. Copeptin Implementation on Stroke Prognosis. Neurol Int 2023; 15:83-99. [PMID: 36648972 PMCID: PMC9844286 DOI: 10.3390/neurolint15010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/02/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Predicting functional outcome following stroke is considered to be of key importance in an attempt to optimize overall stroke care. Although clinical prognostic tools have been widely implemented, optimal blood biomarkers might be able to yield additional information regarding each stroke survivor's propensity for recovery. Copeptin seems to have interesting prognostic potential poststroke. The present review aims to explore the prognostic significance of copeptin in stroke patients. Literature research of two databases (MEDLINE and Scopus) was conducted to trace all relevant studies published between 16 February 2012 and 16 February 2022 that focused on the utility of copeptin as a prognostic marker in acute stroke setting. 25 studies have been identified and included in the present review. The predictive ability of copeptin regarding both functional outcome and mortality appears to be in the range of established clinical variables, thus highlighting the added value of copeptin evaluation in stroke management. Apart from acute ischemic stroke, the discriminatory accuracy of the biomarker was also demonstrated among patients with transient ischemic attack, intracerebral hemorrhage, and subarachnoid hemorrhage. Overall, copeptin represents a powerful prognostic tool, the clinical implementation of which is expected to significantly facilitate the individualized management of stroke patients.
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Affiliation(s)
- Stella Karatzetzou
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Dimitrios Tsiptsios
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
- Correspondence: ; Tel.: +30-6944320016
| | - Anastasia Sousanidou
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Styliani Fotiadou
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Foteini Christidi
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Christos Kokkotis
- Department of Physical Education and Sport Science, Democritus University of Thrace, 69100 Komotini, Greece
| | - Aimilios Gkantzios
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Eleftherios Stefas
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Pinelopi Vlotinou
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Antonia Kaltsatou
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, 42100 Trikala, Greece
| | - Nikolaos Aggelousis
- Department of Physical Education and Sport Science, Democritus University of Thrace, 69100 Komotini, Greece
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8
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Kaltsatou A, Notley SR, Flouris AD, Kenny GP. An exploratory survey of heat stress management programs in the electric power industry. J Occup Environ Hyg 2021; 18:436-445. [PMID: 34406910 DOI: 10.1080/15459624.2021.1954187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Workers in the electric power industry commonly perform physically demanding jobs in hot environments, which combined with the protective clothing worn, places them at risk of disease and health problems related to occupational heat stress. With climate change fueling an increase in the occurrence of hot weather, a targeted approach to heat stress management within the industry is needed. To better understand current heat management practices and identify opportunities for refinement, we conducted an exploratory survey among 33 electric utility companies operating in the United States (n = 32) and Canada (n = 1). Forty-six employees responsible for health and safety of company workers completed 26 questions assessing heat stress as a workplace hazard and heat management practices within five categories: (1) use and administration of heat stress management program; (2) surveillance of heat stress and heat strain; (3) job evaluation and heat-mitigation guidance; (4) education and training programs; and (5) treatment of heat-related illness. While a majority of the respondents (87.0%) indicated heat stress is a workplace hazard and their organization has a heat stress management program (78.3%), less than half reported performing real-time monitoring of heat stress in the workplace (47.8%) or tracking worker heat strain (19.6%) (i.e., physiological response to heat stress). However, most organizations indicated they conducted pre-job evaluations for heat stress (71.7%) and implemented an employee training program on managing heat stress (73.9%). The latter included instruction on various short- and long-term heat-mitigation guidance for workers (e.g., use of work exposure limits, hydration protocols) and the prevention (52.2%) and treatment (63.1%) of heat-related illnesses. Altogether, our survey demonstrates that although many companies employ some form of a heat management program, the basic components defining the programs vary and are lacking for some companies. To maximize worker health and safety during work in hot environments, a consensus-based approach, which considers the five basic components of a heat management program, should be employed to formulate effective practices and methodologies for creating an industry-specific heat management strategy.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Greece
| | - Sean R Notley
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Andreas D Flouris
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Greece
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
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9
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Kouidi EJ, Kaltsatou A, Anifanti MA, Deligiannis AP. Early Left Ventricular Diastolic Dysfunction, Reduced Baroreflex Sensitivity, and Cardiac Autonomic Imbalance in Anabolic-Androgenic Steroid Users. Int J Environ Res Public Health 2021; 18:ijerph18136974. [PMID: 34209901 PMCID: PMC8295852 DOI: 10.3390/ijerph18136974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/18/2021] [Accepted: 06/25/2021] [Indexed: 12/30/2022]
Abstract
The effects of androgen anabolic steroids (AAS) use on athletes’ cardiac autonomic activity in terms of baroreflex sensitivity (BRS), and heart rate variability (HRV) have not yet been adequately studied. Furthermore, there is no information to describe the possible relationship between the structural and functional cardiac remodeling and the cardiac autonomic nervous system changes caused by AAS abuse. Thus, we aimed to study the effects of long-term AAS abuse on cardiac autonomic efficacy and cardiac adaptations in strength-trained athletes. In total, 80 strength-trained athletes (weightlifters and bodybuilders) participated in the study. Notably, 40 of them using AAS according to their state formed group A, 40 nonuser strength-trained athletes comprised group B, and 40 healthy nonathletes (group C) were used as controls. All subjects underwent a head-up tilt test using the 30 min protocol to evaluate the baroreflex sensitivity and short HRV modulation. Furthermore, all athletes undertook standard echocardiography, a cardiac tissue Doppler imaging (TDI) study, and a maximal spiroergometric test on a treadmill to estimate their maximum oxygen consumption (VO2max). The tilt test results showed that group A presented a significantly lower BRS and baroreflex effectiveness index than group B by 13.8% and 10.7%, respectively (p < 0.05). Regarding short-term HRV analysis, a significant increase was observed in sympathetic activity in AAS users. Moreover, athletes of group A showed increased left ventricular (LV) mass index (LVMI) by 8.9% (p < 0.05), compared to group B. However, no difference was found in LV ejection fraction between the groups. TDI measurements indicated that AAS users had decreased septal and lateral peak E’ by 38.0% (p < 0.05) and 32.1% (p < 0.05), respectively, and increased E/E’ by 32.0% (p < 0.05), compared to group B. This LV diastolic function alteration was correlated with the year of AAS abuse. A significant correlation was established between BRS depression and LV diastolic impairment in AAS users. Cardiopulmonary test results showed that AAS users had significantly higher time to exhaustion by 11.0 % (p < 0.05) and VO2max by 15.1% (p < 0.05), compared to controls. A significant correlation was found between VO2max and LVMI in AAS users. The results of the present study indicated that long-term AAS use in strength-trained athletes led to altered cardiovascular autonomic modulations, which were associated with indices of early LV diastolic dysfunction.
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10
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Kaltsatou A, Notley SR, Kenny GP. Effects of exercise-heat stress on circulating stress hormones and interleukin-6 in young and older men. Temperature (Austin) 2020; 7:389-393. [PMID: 33251283 DOI: 10.1080/23328940.2020.1768032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Aging is associated with impairments in thermoregulatory function, which may augment the neuroendocrine and immune response in older relative to young adults during physical activity in the heat. This study was therefore aimed at examining changes in circulating endocrine hormones as cortisol (COR), prolactin (PRL), human growth hormone (hGH) and interleukin-6 (IL-6) in young and older men prior to and following an incremental, exercise-heat stress protocol (40°C and ~15% relative humidity). Accordingly, ten habitually active young (mean±SD; 21 ± 1 years) and ten older (65 ± 3 years) men performed three 30-min bouts of cycling at increasing metabolic heat productions (300, 400 and 500 W, equal to light, moderate and vigorous exercise), each separated by a 15-min recovery. Consistent with our hypothesis, we observed augmented IL-6 in older (3.55 ± 1.62 pg/mL) compared to young men (1.59 ± 0.88 pg/mL) following the protocol (p < 0.001). However, no significant between-group differences were observed for COR and hGH (all p > 0.050). We show that when assessed following incremental exercise in the heat, older men display augmented interleukin-6, but similar levels of stress hormones relative to young men.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Greece
| | - Sean R Notley
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
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Kaltsatou A, Flouris AD, Herry CL, Notley SR, Macartney MJ, Seely AJE, Kenny GP. Heart rate variability in older workers during work under the Threshold Limit Values for heat exposure. Am J Ind Med 2020; 63:787-795. [PMID: 32677129 DOI: 10.1002/ajim.23156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 11/11/2022]
Abstract
BACKGROUND The Threshold Limit Values (TLV) of the American Conference of Governmental and Industrial Hygienists indicate the levels of heat stress that all workers may be repeatedly exposed to without adverse health effects. In this study, we evaluated heart rate variability (HRV) during moderate-to-heavy work performed continuously or according to different TLV work-rest (WR) allocations in healthy physically active older workers. METHODS Nine healthy older (58 ± 5 years) males performed three different 120-minute conditions in accordance with TLV guidelines for moderate-to-heavy intensity work (360 W fixed rate of heat production) in different wet-bulb globe temperatures (WBGT): continuous cycling at 28°C WBGT (CON), as well as intermitted work performed at WR of 3:1 in 29°C WBGT (WR3:1), and at WR of 1:1 at 30°C (WR1:1). Rectal temperature and HRV (3-lead electrocardiogram [ECG]) were assessed throughout. RESULTS Coefficient of Variation, Poincaré SD2, and Shannon Entropy were decreased during the CON compared with the WR3:1 when core temperature exceeded 38°C and after 1 hour of continuous work (P < .05). Also, 4 of the 12 HRV indices studied were reduced at CON compared with WR1:1 after 2 hours of accumulated work time (P < .05). Participants worked longer before core temperature reached 38°C during the WR1:1 and the WR3:1, compared with CON (P < .05). CONCLUSIONS Incorporating breaks during moderate-to-heavy work in the heat for older adults can reduce autonomic stress and prolong the work performed at safe core temperature levels. The TLV WR1:1 provides increased cardiac protection for older workers, as compared with the CON and the WR3:1.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, Department of Exercise ScienceUniversity of ThessalyTrikala Greece
| | - Andreas D. Flouris
- FAME Laboratory, Department of Exercise ScienceUniversity of ThessalyTrikala Greece
- Human and Environmental Physiology Research Unit, School of Human KineticsUniversity of Ottawa Canada
| | - Christophe L. Herry
- Division of Thoracic Surgery and Critical Care MedicineOttawa HospitalOttawa Ontario Canada
| | - Sean R. Notley
- Human and Environmental Physiology Research Unit, School of Human KineticsUniversity of Ottawa Canada
| | - Michael J. Macartney
- School of Health Sciences, College of Health and MedicineUniversity of TasmaniaHobart Tasmania Australia
| | - Andrew J. E. Seely
- Division of Thoracic Surgery and Critical Care MedicineOttawa HospitalOttawa Ontario Canada
| | - Glen P. Kenny
- Human and Environmental Physiology Research Unit, School of Human KineticsUniversity of Ottawa Canada
- Clinical Epidemiology ProgramOttawa Hospital Research InstituteOttawa Ontario Canada
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12
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Kaltsatou A, Flouris AD, Herry CL, Notley SR, Seely AJE, Beatty HW, Kenny GP. Age differences in cardiac autonomic regulation during intermittent exercise in the heat. Eur J Appl Physiol 2020; 120:453-465. [PMID: 31894413 DOI: 10.1007/s00421-019-04290-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 12/18/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE This study aimed to detect potential differences in heart-rate variability (HRV) during a moderate-intensity intermittent exercise in the heat among physically active young (25.8 ± 1.9 years), middle-aged (43.5 ± 2.8 years), and older (62.9 ± 3.7 years) men. METHODS Thirty-three participants (11/group) performed four successive bouts of 15-min cycling at a moderate fixed rate of metabolic heat production of ~ 400 W; each separated by a 15-min recovery with 1 h of final recovery in a hot and dry environment (35 °C, 20% relative humidity). Twelve HRV indices were computed that have been commonly described in the literature, and characterized various domains of the variability and complexity of heart rate. RESULTS Cardiac autonomic regulation during intermittent exercise in the heat, as well as during pre-exercise rest and recovery was significantly affected by age, as changes were observed among the three different aged groups in five indices (p ≤ 0.05). Similarly, time influenced cardiac autonomic regulation as three indices showed changes across time (p ≤ 0.05) during intermittent exercise, whilst five indices displayed significant changes (p ≤ 0.05) during rest and recovery in the heat. CONCLUSIONS This study supports that moderate-intensity intermittent exercise in the heat is associated with significant cardiac autonomic dysregulation in older men, as compared to young and middle-aged men, yet it highlights the importance of developing preventative health strategies for heat-related illness in aged individuals.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, 42100, Trikala, Greece
| | - Andreas D Flouris
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, 42100, Trikala, Greece
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Private, Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada
| | - Christophe L Herry
- Clinical Epidemiological Program of the Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Sean R Notley
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Private, Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada
| | - Andrew J E Seely
- Clinical Epidemiological Program of the Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Thoracic Surgery and Critical Care Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Heather Wright Beatty
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Private, Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Private, Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada.
- Clinical Epidemiological Program of the Ottawa Hospital Research Institute, Ottawa, ON, Canada.
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13
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Kaltsatou A, Hadjigeorgiou GM, Grigoriou SS, Karatzaferi C, Giannaki CD, Lavdas E, Fotiou D, Kouidi E, Patramani G, Vogiatzi C, Pappas A, Stefanidis I, Sakkas GK. Cardiac autonomic function during intradialytic exercise training. Postgrad Med 2019; 131:539-545. [DOI: 10.1080/00325481.2019.1663707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Antonia Kaltsatou
- Department of Physical Education & Sport Science, University of Thessaly, Trikala, Greece
| | | | - Stefania S. Grigoriou
- Department of Physical Education & Sport Science, University of Thessaly, Trikala, Greece
| | - Christina Karatzaferi
- Department of Physical Education & Sport Science, University of Thessaly, Trikala, Greece
| | | | - Eleftherios Lavdas
- Department of Radiology and Radiotherapy, Technological Educational Institute of Athens, Athens, Greece
| | - Dimitris Fotiou
- School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Evangelia Kouidi
- School of Physical Education & Sport Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Aggelos Pappas
- Department of Physical Education & Sport Science, University of Thessaly, Trikala, Greece
| | | | - Giorgos K. Sakkas
- Department of Physical Education & Sport Science, University of Thessaly, Trikala, Greece
- Cardiff Metropolitan University, Cardiff, UK
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14
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Massaro M, Scoditti E, Carluccio MA, Kaltsatou A, Cicchella A. Effect of Cocoa Products and Its Polyphenolic Constituents on Exercise Performance and Exercise-Induced Muscle Damage and Inflammation: A Review of Clinical Trials. Nutrients 2019; 11:E1471. [PMID: 31261645 PMCID: PMC6683266 DOI: 10.3390/nu11071471] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/19/2019] [Accepted: 06/25/2019] [Indexed: 12/18/2022] Open
Abstract
In recent years, the consumption of chocolate and, in particular, dark chocolate has been "rehabilitated" due to its high content of cocoa antioxidant polyphenols. Although it is recognized that regular exercise improves energy metabolism and muscle performance, excessive or unaccustomed exercise may induce cell damage and impair muscle function by triggering oxidative stress and tissue inflammation. The aim of this review was to revise the available data from literature on the effects of cocoa polyphenols on exercise-associated tissue damage and impairment of exercise performance. To this aim, PubMed and Web of Science databases were searched with the following keywords: "intervention studies", "cocoa polyphenols", "exercise training", "inflammation", "oxidative stress", and "exercise performance". We selected thirteen randomized clinical trials on cocoa ingestion that involved a total of 200 well-trained athletes. The retrieved data indicate that acute, sub-chronic, and chronic cocoa polyphenol intake may reduce exercise-induced oxidative stress but not inflammation, while mixed results are observed in terms of exercise performance and recovery. The interpretation of available results on the anti-oxidative and anti-inflammatory activities of cocoa polyphenols remains questionable, likely due to the variety of physiological networks involved. Further experimental studies are mandatory to clarify the role of cocoa polyphenol supplementation in exercise-mediated inflammation.
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Affiliation(s)
- Marika Massaro
- National Research Council-Institute of Clinical Physiology, Laboratory of Nutrigenomic and Vascular Biology, Lecce 73100, Italy.
| | - Egeria Scoditti
- National Research Council-Institute of Clinical Physiology, Laboratory of Nutrigenomic and Vascular Biology, Lecce 73100, Italy
| | - Maria Annunziata Carluccio
- National Research Council-Institute of Clinical Physiology, Laboratory of Nutrigenomic and Vascular Biology, Lecce 73100, Italy
| | - Antonia Kaltsatou
- FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, Trikala 42100, Greece
| | - Antonio Cicchella
- Department for Quality of Life Studies, University of Bologna, Bologna 40126, Italy
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15
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Kaltsatou A, Flouris AD. Impact of pre-cooling therapy on the physical performance and functional capacity of multiple sclerosis patients: A systematic review. Mult Scler Relat Disord 2018; 27:419-423. [PMID: 30544086 DOI: 10.1016/j.msard.2018.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 10/04/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
Abstract
Patients with multiple sclerosis experience many complications that gradually lead them to comorbidity and disability. Exercise could prevent and ameliorate the symptoms that comorbidity or inactivity generate. However, until recently it was suggested that multiple sclerosis patients should not participate in exercise training programs because these patients are characterized by thermoregulatory failure and the heat stress due to physical work could exacerbate the disease symptoms. Furthermore, taken into account that 60-80% of the multiple sclerosis patients present adverse clinical symptoms when their body temperature is increased (not only due to physical working but even when immerse in hot water or by exposure to infrared lamps or to the sun), the need for the development of treatment strategies to overcome the thermoregulatory problem in these patients is crucial. Given that pre-cooling has been proposed as an effective method, the aim of this systematic review is to discuss the current knowledge for the effects of cooling therapy on the functional capacity of multiple sclerosis patients. The relevant literature includes many articles, but only a handful of studies published thus far have used a cooling intervention in multiple sclerosis patients and have examined the effects of pre-cooling on functional capacity. These studies used active cooling methods, namely garments or other material that are cooled by circulating liquid through a tube, as well as passive, cooling methods. Passive cooling methods include passive cooling garments or other material namely garments that have ice or gel packs inside them. Overall, the results of all the studies analysed in this review demonstrated that pre-cooling therapy can prevent the symptom worsening due to increased body temperature in multiple sclerosis patients without causing adverse effects. Therefore, such strategies could serve as a complimentary therapeutic approach in multiple sclerosis patients.
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Affiliation(s)
- Antonia Kaltsatou
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Karies 42100, Greece
| | - Andreas D Flouris
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Karies 42100, Greece.
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16
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Leicht AS, Flouris AD, Kaltsatou A, Seely AJ, Herry CL, Wright Beatty HE, Kenny GP. Age alters cardiac autonomic modulations during and following exercise-induced heat stress in females. Temperature (Austin) 2018; 5:184-196. [PMID: 30377635 DOI: 10.1080/23328940.2018.1432918] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 01/26/2018] [Accepted: 02/07/2018] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to examine the effect of natural ageing on heart rate variability during and following exercise-induced heat stress in females. Eleven young (∼24 years) and 13 older (∼51 years), habitually active females completed an experimental session consisting of baseline rest, moderate intensity intermittent exercise (four 15-min bouts separated by 15-min recovery) and 1-hour of final recovery in a hot and dry (35°C, 20% relative humidity) environment. Respiratory and heart rate recordings were continuously logged with 10-min periods analysed at the end of: baseline rest; each of the exercise and recovery bouts; and during the 1-hour final recovery period. Comparisons over time during exercise and recovery, and between groups were conducted via two-way repeated-measures ANCOVAs with rest values as the covariate. During baseline rest, older females exhibited lower heart rate variability compared to young females with similar levels of respiration and most (∼71-79%) heart rate variability measures during repeated exercise and recovery. However, older females exhibited heart rate variability metrics suggestive of greater parasympathetic modulation (greater long axis of Poincare plot, cardiac vagal index; lower low-high frequency ratio) during repeated exercise with lower indices during the latter stage of prolonged recovery (less very low frequency component, Largest Lyapunov Exponent; greater cardiac sympathetic index). The current study documented several unique, age-dependent differences in heart rate variability, independent of respiration, during and following exercise-induced heat stress for females that may assist in the detection of normal heat-induced adaptations as well as individuals vulnerable to heat stress.
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Affiliation(s)
- Anthony S Leicht
- Sport and Exercise Science, James Cook University, Townsville, Australia
| | - Andreas D Flouris
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Greece
| | - Antonia Kaltsatou
- FAME Laboratory, Department of Exercise Science, University of Thessaly, Trikala, Greece
| | - Andrew J Seely
- Divisions of Thoracic Surgery and Critical Care Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Christophe L Herry
- Dynamical Analysis Lab, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ontario, Canada
| | | | - Glen P Kenny
- Human and Environmental Physiology Research Unit, University of Ottawa, Ontario, Canada
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17
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Kaltsatou A. Management of Blood Pressure and Heart Rate in Chronic Kidney Disease. Curr Pharm Des 2017; 23:4603-4608. [PMID: 28875847 DOI: 10.2174/1381612823666170829164305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/01/2017] [Accepted: 08/16/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hypertension is considered a major health problem in patients with chronic kidney disease (CKD) as approximately 80-85% of CKD patients' suffer from hypertension in the United States. Hypertension is the second leading cause of CKD after diabetes and is strongly related to morbidity and mortality. It has been found that there is a relation among hypertension, glomerular filtration rate (GFR) and creatinine levels. OBJECTIVE Since there is a strong relation between hypertension and CKD, and hypertension seems to lead to cardiovascular diseases, which have epidemic proportions in CKD, this review article discusses the etiology of hypertension and the existing optimal therapies that contribute to the hypertension and heart rate management. RESULTS There are many approaches that contribute to the management of hypertension and heart rate in CKD patients. Lifestyle modifications in combination with drug therapy lead to the better control of hypertension in CKD patients. CONCLUSION Hypertension is strongly related to cardiovascular diseases in CKD patients. Since this relation exists and hypertension leads to cardiovascular diseases, the management of hypertension and increased heart rate should be a main therapeutic target in these patients.
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Affiliation(s)
- Antonia Kaltsatou
- School of Physical Education & Sport Science, University of Thessaly, Karies, 42100, Trikala, Greece
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18
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Menezes R, Rodriguez-Mateos A, Kaltsatou A, González-Sarrías A, Greyling A, Giannaki C, Andres-Lacueva C, Milenkovic D, Gibney ER, Dumont J, Schär M, Garcia-Aloy M, Palma-Duran SA, Ruskovska T, Maksimova V, Combet E, Pinto P. Impact of Flavonols on Cardiometabolic Biomarkers: A Meta-Analysis of Randomized Controlled Human Trials to Explore the Role of Inter-Individual Variability. Nutrients 2017; 9:E117. [PMID: 28208791 PMCID: PMC5331548 DOI: 10.3390/nu9020117] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 02/03/2017] [Indexed: 02/05/2023] Open
Abstract
Several epidemiological studies have linked flavonols with decreased risk of cardiovascular disease (CVD). However, some heterogeneity in the individual physiological responses to the consumption of these compounds has been identified. This meta-analysis aimed to study the effect of flavonol supplementation on biomarkers of CVD risk such as, blood lipids, blood pressure and plasma glucose, as well as factors affecting their inter-individual variability. Data from 18 human randomized controlled trials were pooled and the effect was estimated using fixed or random effects meta-analysis model and reported as difference in means (DM). Variability in the response of blood lipids to supplementation with flavonols was assessed by stratifying various population subgroups: age, sex, country, and health status. Results showed significant reductions in total cholesterol (DM = -0.10 mmol/L; 95% CI: -0.20, -0.01), LDL cholesterol (DM = -0.14 mmol/L; Nutrients 2017, 9, 117 2 of 21 95% CI: -0.21, 0.07), and triacylglycerol (DM = -0.10 mmol/L; 95% CI: -0.18, 0.03), and a significant increase in HDL cholesterol (DM = 0.05 mmol/L; 95% CI: 0.02, 0.07). A significant reduction was also observed in fasting plasma glucose (DM = -0.18 mmol/L; 95%CI: -0.29, -0.08), and in blood pressure (SBP: DM = -4.84 mmHg; 95% CI: -5.64, -4.04; DBP: DM = -3.32 mmHg; 95% CI: -4.09, -2.55). Subgroup analysis showed a more pronounced effect of flavonol intake in participants from Asian countries and in participants with diagnosed disease or dyslipidemia, compared to healthy and normal baseline values. In conclusion, flavonol consumption improved biomarkers of CVD risk, however, country of origin and health status may influence the effect of flavonol intake on blood lipid levels.
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Affiliation(s)
- Regina Menezes
- iBET/ITQB, Molecular Nutrition & Health Laboratory, 2780-157 Oeiras, Portugal;
| | - Ana Rodriguez-Mateos
- Division of Diabetes and Nutritional Sciences, Faculty of Life Sciences and Medicine, King’s College London, London SE1 9NH, UK;
| | - Antonia Kaltsatou
- FAME Laboratory, School of Exercise Science, University of Thessaly, 42100 Volos, Greece;
| | | | | | | | - Cristina Andres-Lacueva
- Biomarkers and Nutrimetabolomic Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Campus Torribera, Faculty of Pharmacy and Food Sciences, University of Barcelona, CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 08028 Barcelona, Spain; (C.A.-L.); (M.G.-A.)
| | - Dragan Milenkovic
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000 Clermont-Ferrand, Clermont Université, Université d’Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France;
| | | | - Julie Dumont
- Université Lille, INSERM, Institut Pasteur de Lille, U1167—RID-AGE—Facteurs de Risque et Déterminants Moléculaires des Maladies Liées au Vieillissement, F-59000 Lille, France;
| | - Manuel Schär
- Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK;
| | - Mar Garcia-Aloy
- Biomarkers and Nutrimetabolomic Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Campus Torribera, Faculty of Pharmacy and Food Sciences, University of Barcelona, CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 08028 Barcelona, Spain; (C.A.-L.); (M.G.-A.)
| | | | | | | | - Emilie Combet
- Human Nutrition, University of Glasgow, Glasgow G31 2ER, UK; (S.A.P.-D.); (E.C.)
| | - Paula Pinto
- iBET/ITQB, Molecular Nutrition & Health Laboratory, 2780-157 Oeiras, Portugal;
- Polytechnic Institute of Santarem, ESA, Department of Food Technology, Biotechnology and Nutrition, 2001-904 Santarém, Portugal
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Vordos Z, Kouidi E, Mavrovouniotis F, Metaxas T, Dimitros E, Kaltsatou A, Deligiannis A. Impact of traditional Greek dancing on jumping ability, muscular strength and lower limb endurance in cardiac rehabilitation programmes. Eur J Cardiovasc Nurs 2016; 16:150-156. [PMID: 27081164 DOI: 10.1177/1474515116636980] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AIMS The objective of this study was to evaluate the effect of a training programme based on traditional Greek dance on the jumping ability, muscle strength and lower limb endurance in patients with chronic heart failure (CHF). PATIENTS AND METHODS Forty Greek patients with CHF graded as NYHA ⩽ II and aged 73.2±4.7 years were randomly divided into two groups. Group A ( n=20) participated in a three-month physical rehabilitation programme based on Greek traditional dances, whereas group B ( n=20) remained untrained and served as the control group. All patients were studied before and after the 12-week exercise training programme. At baseline and follow-up the exercise capacity of the patients was evaluated by the six-minute walking test, their lower extremity muscle strength was evaluated by an isokinetic dynamometer and their jumping ability by the Myotest-Pro test, which includes three types of jumps (plyometric, countermovement and squat jumps). RESULTS No significant difference was observed between the two groups at the baseline evaluation. At follow-up, group A showed significant improvements in walking distance calculated from the six-minute walking test (10.0% improvement; p<0.05), in lower limb strength (10.32% improvement; p<0.05), and in countermovement jump speed (6.9%; p<0.05) and squat jump speed (5.8%; p<0.05). Group A also increased their jump plyometry height by 13.86% ( p<0.05), their counter jump height by 10.68% ( p<0.05) and their squat jump height by 10.45% ( p<0.05). Group A had a 6.85% ( p<0.05) increased force of counter jump compared with group B. CONCLUSION The design and implementation of cardiac rehabilitation programmes using Greek traditional dances in patients with CHF are both safe and effective in improving lower limb function.
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Affiliation(s)
| | | | | | - Thomas Metaxas
- 2 Laboratory of Ergophysiology - Ergometry, Department of Physical Education and Sports Science, Aristotle University, Greece
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Kaltsatou A, Karatzaferi C, I. Mitrou G, P. Poulianiti K, K. Sakkas G. Intra-Renal Hemodynamic Changes After Habitual Physical Activity in Patients with Chronic Kidney Disease. Curr Pharm Des 2016; 22:3700-14. [DOI: 10.2174/1381612822666160322144936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/21/2016] [Indexed: 11/22/2022]
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Fotiou D, Kaltsatou A, Tsiptsios D, Nakou M. Evaluation of the cholinergic hypothesis in Alzheimer's disease with neuropsychological methods. Aging Clin Exp Res 2015; 27:727-33. [PMID: 25749905 DOI: 10.1007/s40520-015-0321-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 01/20/2015] [Indexed: 11/29/2022]
Abstract
AIM This study aimed at evaluating the cholinergic hypothesis in Alzheimer's disease (AD) patients utilizing the pupillometry method, cognitive tests and Hamilton Depression Rating Scale (HAM-D), as well as to examine whether a correlation between cognitive tests and pupillometry exists. METHODS Forty-two patients with mean age 69.2 ± 7.0 years and documented AD volunteered to participate in this study, while 33 healthy matched subjects served as controls. All subjects underwent a pupillometric measurement and performed the Wechsler Memory Scale (WMS) and Mini Mental State Examination (MMSE). Also, HAM-D was used to assess the severity of depressive symptoms. The pupillometric parameters studied were (1) latency for the onset of constriction (T1), (2) maximum constriction velocity (VCmax), and (3) maximum constriction acceleration (ACmax). RESULTS In AD patients MMSE and WMS score were correlated with ACmax (r = -0.409, p < 0.05 and r = -0.513, p < 0.05, respectively) and VCmax (r = -0.664, p < 0.05 and r = -0.771, p < 0.05), respectively. Moreover, T1 was found to be significantly increased by 23 % (p < 0.05) in AD patients compared to healthy subjects. Conversely, the mean scores of VCmax and ACmax were significantly decreased in AD patients by 46 % (p < 0.05) and by 47 % (p < 0.05), respectively, as compared to healthy subjects. There was no significant difference between the two groups for HAM-D. Additionally, AD patients showed decreased score in WMS by 40 % (p < 0.05) and in MMSE by 28.5 % (p < 0.05) compared to healthy subjects. Of the indices that were studied VCmax and ACmax are governed mainly by the action of the Parasympathetic Nervous System. CONCLUSIONS The results of this study demonstrated that there is a correlation between cognitive tests and pupillometry in AD patients. Thus, pupillometry could be considered as a sensitive technique for the investigation of cholinergic deficits, which indirectly lead to memory and cognitive disorders in AD patients.
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Affiliation(s)
- Dimitrios Fotiou
- Neuroscience Division, Medicine School, A Neurology Clinic of AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonia Kaltsatou
- Neuroscience Division, Medicine School, A Neurology Clinic of AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece.
- Department of Physical Education and Sport Science, University of Thessaly, Karies, 42100, Trikala, Greece.
| | - Dimitrios Tsiptsios
- Neuroscience Division, Medicine School, A Neurology Clinic of AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria Nakou
- Neuroscience Division, Medicine School, A Neurology Clinic of AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Kaltsatou A, Grigoriou S, Karatzaferi C, Fotiou D, Stefanidis I, Sakkas G. SP456AUTONOMIC NERVOUS SYSTEM ACTIVITY ASSESSMENT USING PUPILLOMETRY AND HEART RATE VARIABILITY DURING INTRADIALYTIC EXERCISE TRAINING IN HEMODIALYSIS PATIENTS. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv194.20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sakkas G, Poulianiti K, Kaltsatou A, Karioti A, Maridaki M, Stefanidis I, Jamurtas A, Koutedakis Y, Karatzaferi C. SP434SKELETAL MUSCLE AND BLOOD OXIDATIVE STRESS IN A CHRONIC KIDNEY DISEASE ANIMAL MODEL. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv193.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kaltsatou A, Fotiou D, Tsiptsios D, Orologas A. Cognitive impairment as a central cholinergic deficit in patients with Myasthenia Gravis. BBA Clin 2015; 3:299-303. [PMID: 26672759 PMCID: PMC4661582 DOI: 10.1016/j.bbacli.2015.04.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 04/16/2015] [Accepted: 04/17/2015] [Indexed: 11/21/2022]
Abstract
Background The purpose of this study was to investigate with neurophysiological and neuropsychological methods such as pupillometry, cognitive test and Hamilton Depression Rating Scale (HAM-D) the hypothesis of Central Nervous System (CNS) cholinergic involvement in patients with Myasthenia Gravis (MG). Methods Thirty-two patients (32) with MG and a mean age of 51.1 ± 17.2 volunteered to participate in this investigation, while thirty-three (33) healthy subjects with a mean age of 50.2 ± 14.8 served as controls. All subjects underwent pupillometric measurements and performed the Wechsler Memory Scale (WMS) and HAM-D. The pupillometric indices studied were: 1) latency for the onset of constriction (T1), 2) maximum constriction velocity (VCmax) and 3) maximum constriction acceleration (ACmax). Results T1 was found significantly increased by 21.7% (p < 0.05) in MG patients as compared to healthy subjects. Conversely, VCmax and ACmax were significantly decreased in MG patients by 33.3% (p < 0.05) and 43.5% (p < 0.05) respectively, as opposed to healthy subjects. Additionally, MG patients showed significantly decreased score in WMS by 41.6% (p < 0.05) as compared to healthy controls. No significant difference was found for HAM-D between the two groups. Conclusions VCmax and ACmax are governed mainly by the action of the Parasympathetic Nervous System, through acetylcholine. The results of this study demonstrate that the CNS may be affected in MG and support the hypothesis that MG has central cholinergic effects manifested by cognitive dysfunction. Myasthenia Gravis has central cholinergic deficits manifested by cognitive dysfunction. The hypothesis of Central Nervous System cholinergic involvement was examined with pupillometry and cognitive tests. Central Cholinergic System and/or the iris sphincter smooth muscle might be affected in Myasthenia Gravis.
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Kaltsatou A, Grigoriou SS, Karatzaferi C, Giannaki CD, Stefanidis I, Sakkas GK. Cognitive function and exercise training for chronic renal disease patients: A literature review. J Bodyw Mov Ther 2015; 19:509-15. [PMID: 26118524 DOI: 10.1016/j.jbmt.2015.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/25/2015] [Accepted: 04/13/2015] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Cognitive impairment is very often noted in patients with Chronic Kidney Disease (CKD). Even though, exercise is considered to be a quantifiable activity that improves cognition in animals and humans, it seems that few studies have examined the relationship between cognitive function and CKD from the perspective of physical activity and cognitive performance. Thus, this evidence based review summarizes the present level of knowledge regarding the effects of exercise training on cognitive function in CKD patients. DATA SOURCES A comprehensive literature search was conducted in PubMed and Scopus from May 2014 through June 2014, by using the Cochrane and PRISMA guidelines. REVIEW METHODS Eligibility of the studies based on titles, abstracts and full-text articles was determined by two reviewers. Studies were selected using inclusion and exclusion criteria. We included only those studies that: assessed cognitive function in humans and animals using validated neuropsychological methods in chronic renal diseases patients; used exercise training protocols; addressed randomized control trials or controlled trials or clinical trials designed to evaluate cognitive impairment; and articles that were written in English. Studies were excluded when they concerned behavioral approaches and underpowered studies. RESULTS According to the current review only a few studies have examined the issue of cognitive function in CKD patients. These studies indicate that these patients often exhibit cognitive impairment, which is highly associated with poor outcomes. It has been supported that exercise training can induce positive changes in brain metabolism favoring better scores in cognitive function in Chronic Kidney Disease patients although the physiological mechanisms, which explain the influence of physical activity on cognition, have focused on changes in neurotransmitters, neurotrophins and vasculature. CONCLUSION Systematic exercise training seems to improve cognitive function in Chronic Kidney Disease patients but further research is warranted to further clarify the mechanisms involved.
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Affiliation(s)
- Antonia Kaltsatou
- Department of PE and Sport Science, University of Thessaly, Trikala, Greece.
| | | | | | | | - Ioannis Stefanidis
- Department of Medicine, Division of Nephrology, University of Thessaly, Greece
| | - Giorgos K Sakkas
- Department of PE and Sport Science, University of Thessaly, Trikala, Greece; Department of Medicine, Division of Nephrology, University of Thessaly, Greece
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Kaltsatou A, Sakkas GK, Poulianiti KP, Koutedakis Y, Tepetes K, Christodoulidis G, Stefanidis I, Karatzaferi C. Uremic myopathy: is oxidative stress implicated in muscle dysfunction in uremia? Front Physiol 2015; 6:102. [PMID: 25870564 PMCID: PMC4378187 DOI: 10.3389/fphys.2015.00102] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/13/2015] [Indexed: 12/14/2022] Open
Abstract
Renal failure is accompanied by progressive muscle weakness and premature fatigue, in part linked to hypokinesis and in part to uremic toxicity. These changes are associated with various detrimental biochemical and morphological alterations. All of these pathological parameters are collectively termed uremic myopathy. Various interventions while helpful can't fully remedy the pathological phenotype. Complex mechanisms that stimulate muscle dysfunction in uremia have been proposed, and oxidative stress could be implicated. Skeletal muscles continuously produce reactive oxygen species (ROS) and reactive nitrogen species (RNS) at rest and more so during contraction. The aim of this mini review is to provide an update on recent advances in our understanding of how ROS and RNS generation might contribute to muscle dysfunction in uremia. Thus, a systematic review was conducted searching PubMed and Scopus by using the Cochrane and PRISMA guidelines. While few studies met our criteria their findings are discussed making reference to other available literature data. Oxidative stress can direct muscle cells into a catabolic state and chronic exposure to it leads to wasting. Moreover, redox disturbances can significantly affect force production per se. We conclude that oxidative stress can be in part responsible for some aspects of uremic myopathy. Further research is needed to discern clear mechanisms and to help efforts to counteract muscle weakness and exercise intolerance in uremic patients.
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Affiliation(s)
- Antonia Kaltsatou
- Department of Physical Education and Sport Sciences (DPESS), School of Physical Education (PE), University of Thessaly Trikala, Greece
| | - Giorgos K Sakkas
- Department of Physical Education and Sport Sciences (DPESS), School of Physical Education (PE), University of Thessaly Trikala, Greece ; Institute for Research and Technology-Centre for Research and Technology Hellas Trikala, Greece
| | - Konstantina P Poulianiti
- Department of Physical Education and Sport Sciences (DPESS), School of Physical Education (PE), University of Thessaly Trikala, Greece
| | - Yiannis Koutedakis
- Department of Physical Education and Sport Sciences (DPESS), School of Physical Education (PE), University of Thessaly Trikala, Greece
| | - Konstantinos Tepetes
- Department of Surgery, Faculty of Medicine, University of Thessaly Larissa, Greece
| | | | - Ioannis Stefanidis
- Department of Nephrology, Faculty of Medicine, University of Thessaly Larissa, Greece
| | - Christina Karatzaferi
- Department of Physical Education and Sport Sciences (DPESS), School of Physical Education (PE), University of Thessaly Trikala, Greece
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Kaltsatou A, Kouidi E, Fountoulakis K, Sipka C, Theochari V, Kandylis D, Deligiannis A. Effects of exercise training with traditional dancing on functional capacity and quality of life in patients with schizophrenia: a randomized controlled study. Clin Rehabil 2014; 29:882-91. [PMID: 25525065 DOI: 10.1177/0269215514564085] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 11/22/2014] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To examine the effects of an eight-month exercise training programme with Greek traditional dancing on functional capacity and quality of life in patients with schizophrenia. DESIGN Randomized controlled trial. SETTING Sports Medicine Laboratory. SUBJECTS A total of 31 patients, aged 59.9 ± 14.1 years. INTERVENTIONS They were randomly assigned either to a Greek traditional dancing programme (Group A) or to a sedentary control group (Group B). MAIN MEASURES A functional capacity assessment was performed at baseline and the end of the study. Global Assessment of Functioning Scale and Positive and Negative Syndrome Scale were also used. Quality of life was examined using the Quality of Life and Satisfaction questionnaire. RESULTS After the eight months, Group A increased walking distance in the 6-minute walk test (328.4 ± 35.9 vs. 238.0 ± 47.6 m), sit-to-stand test (19.1 ± 1.8 vs. 25.1 ± 1.4 seconds), Berg Balance Scale score (53.1 ± 2.1 vs. 43.2 ± 6.7), lower limbs maximal isometric force (77.7 ± 25.7 vs. 51.0 ± 29.8 lb), Positive and Negative Syndrome Scale total score (77.0 ± 23.1 vs. 82.0 ± 24.4), Global Assessment of Functioning Scale total score (51.3 ± 15.5 vs. 47.7 ± 13.3) and Quality of Life total score (34.9 ± 5.2 vs. 28 ± 4.5), compared with Group B. CONCLUSIONS Our results demonstrate that Greek traditional dances improve functional capacity and quality of life in patients with schizophrenia.
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Affiliation(s)
- A Kaltsatou
- Laboratory of Sports Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Kouidi
- Laboratory of Sports Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - K Fountoulakis
- 3rd Department of Psychiatry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - C Sipka
- Laboratory of Sports Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - V Theochari
- Laboratory of Sports Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - D Kandylis
- 3rd Department of Psychiatry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - A Deligiannis
- Laboratory of Sports Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Alexandris K, Douka S, Papadopoulos P, Kaltsatou A. Testing the role of service quality on the development of brand associations and brand loyalty. ACTA ACUST UNITED AC 2008. [DOI: 10.1108/09604520810871865] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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