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Tayebi SM, Motaghinasab S, Eslami R, Ahmadabadi S, Basereh A, Jamhiri I. Impact of 8-week cold-and warm water swimming training combined with cinnamon consumption on serum METRNL, HDAC5, and insulin resistance levels in diabetic male rats. Heliyon 2024; 10:e29742. [PMID: 38681576 PMCID: PMC11053207 DOI: 10.1016/j.heliyon.2024.e29742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 04/13/2024] [Accepted: 04/15/2024] [Indexed: 05/01/2024] Open
Abstract
Objective Numerous studies have reported the beneficial effects of exercise and the use of herbal supplements in improving type 2 diabetes and insulin resistance. However, there are still many unanswered questions about the effects of cold and hot water, exercise, and herbal supplements on meteorine-like protein (METRNL), which is considered one of the key factors influencing insulin resistance improvement in this condition. Hence, the current study aimed to address these knowledge gaps and investigate the effects of 8 weeks of warm and cold-water swimming exercise with cinnamon consumption on serum levels of METRNL, histone deacetylase-5 (HDAC5), and insulin resistance in diabetic male rats. Methods For this purpose, 70 diabetic male rats were randomly divided into seven groups (10 rats in each group) H ealthy control (HC) , Diabetic control , swimming training in cold water (temperature 5 °C) , swimming training at 5 °C + cinnamon consumption (200 mg/kg body weight) , swimming training in warm water (temperature 36-35 °C) , swimming training in warm water (temperature 36-35 °C) + consumption of cinnamon, and consumption of cinnamon only. Results The present study revealed a significant increase in serum METRNL concentration in the cold-water swimming + cinnamon consumption group (p < 0.05). However, no significant changes were observed in insulin levels and HOMA-IR across the different groups (p > 0.05). Additionally, noteworthy findings included a significant reduction in HDAC5 levels in both the cold-water swimming group and the cold-water swimming + cinnamon consumption group, as well as a significant decrease in fasting blood sugar (FBS) levels in all groups compared to the HC group (p < 0.05). Conclusions The results of the present study demonstrate that the combination of cold-water swimming exercises and cinnamon extract consumption led to notable increases in serum METRNL concentration. Additionally, significant reductions were observed in HDAC5 and FBS levels. These findings highlight the potential effectiveness and benefits of the combination of cold-water swimming exercises and cinnamon extract consumption as an approach to improve diabetes-related indices.
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Affiliation(s)
- Seyed Morteza Tayebi
- Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran
| | - Saleh Motaghinasab
- Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran
| | - Rasoul Eslami
- Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Allameh Tabataba'i University, Tehran, Iran
| | - Somayeh Ahmadabadi
- Department of Physical Education and Sports Sciences, Farhangian University, P.O. Box 14665-889, Tehran, Iran
| | - Aref Basereh
- Faculty of Sports Science, Kharazmi University, Tehran, Iran
| | - Iman Jamhiri
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Teległów A, Genç H, Cicha I. Effect of a single immersion in cold water below 4 °C on haemorheological properties of blood in healthy men. Sci Rep 2024; 14:8554. [PMID: 38609397 PMCID: PMC11015000 DOI: 10.1038/s41598-024-58731-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Cold water immersion (CWI) involves rapid cooling of the body, which, in healthy individuals, triggers a defence response to an extreme stimulus, to which the body reacts with stress. The aim of the study was to determine the effect of CWI on hemorheological blood indicators. The study group consisted of 13 young males. Blood samples were collected before and after CWI. The assessed parameters included the complete blood count, fibrinogen, hs-C-reactive protein (CRP), proteinogram, and blood rheology factors, such as erythrocyte elongation index (EI), half-time of total aggregation, and aggregation index. Additionally, the effect of reduced temperature on primary human vascular endothelium was investigated in vitro. CWI resulted in the decrease of body temperature to 31.55 ± 2.87 °C. After CWI, neutrophil count and mean corpuscular volume (MCV) were significantly increased in the study group, while lymphocyte count was significantly decreased. Significantly higher levels of total blood protein and albumin concentration were detected after the immersion. Among hemorheological characteristics, erythrocyte EIs at shear stress values ranging from 2.19 to 60.30 Pa were significantly lower after CWI. No significant changes in other rheological, morphological or biochemical parameters were observed. In vitro, human umbilical vein endothelial cells responded to 3 h of temperature decrease to 25 °C with unchanged viability, but increased recruitment of THP-1 monocytic cells and changes in cell morphology were observed. This was the first study to evaluate the effect of single CWI on rheological properties of blood in healthy young men. The results indicate that a single CWI may increase blood protein concentrations and worsen erythrocyte deformability parameters.
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Affiliation(s)
- Aneta Teległów
- Department of Health Promotion, Institute of Basic Sciences, University of Physical Education in Krakow, 31-571, Kraków, Poland.
| | - Hatice Genç
- Cardiovascular Nanomedicine Unit, Section of Experimental Oncology and Nanomedicine (SEON), Department of Otorhinolaryngology, Head and Neck Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Iwona Cicha
- Cardiovascular Nanomedicine Unit, Section of Experimental Oncology and Nanomedicine (SEON), Department of Otorhinolaryngology, Head and Neck Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
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Teległów A, Mirek W, Ptaszek B, Maciejczyk M, Godawska D, Marchewka J. Blood Morphological and Biochemical Indicator Characteristics in Men Performing Different Physical Activities in the Cold-A Preliminary Report. Life (Basel) 2024; 14:474. [PMID: 38672745 PMCID: PMC11051395 DOI: 10.3390/life14040474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
This descriptive study determined whether winter swimming (WS) and outdoor amateur running (RUN) affect blood morphological and biochemical indicators in men during midseason winter swimming from November to April. There were three groups of participants, with 10 male amateurs each: RUN + WS, WS, and control. The research was performed in the middle of the winter swimming season of 2020/2021. This time period was chosen in consideration of the respondents' adaptation to winter conditions. The study involved only 10 male amateurs in each study group owing to COVID-19 pandemic restrictions, which confined people to their homes. In the RUN + WS group compared with the WS group, significant decreases in the mean corpuscular hemoglobin concentration (within standard limits) (p = 0.04) and platelet distribution width (p = 0.006) were observed, with a significant increase in the red blood cell distribution width (p = 0.008) (within standard limits). The renal function, as expressed by the estimated glomerular filtration rate, was higher in the RUN + WS group (p = 0.02) (within standard limits) compared with the WS group, and the uric acid concentration was reduced (p = 0.01). In the RUN + WS group compared with the control group, significant decreases in the leukocyte count (p = 0.02) (within standard limits), monocyte count (p = 0.04) (within standard limits), and platelet distribution width (p = 0.005) were reported. The remaining indicators presented a p-value > 0.05. The two investigated forms of physical activity had no negative effect on blood morphological or biochemical indicators in male amateurs during the winter swimming midseason.
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Affiliation(s)
- Aneta Teległów
- Department of Health Promotion, Institute of Basic Sciences, University of Physical Education, 31-571 Krakow, Poland
| | - Wacław Mirek
- Institute of Sports Science, University of Physical Education, 31-571 Krakow, Poland;
| | - Bartłomiej Ptaszek
- Institute of Applied Sciences, University of Physical Education, 31-571 Krakow, Poland
| | - Marcin Maciejczyk
- Department of Physiology and Biochemistry, University of Physical Education, 31-571 Krakow, Poland;
| | - Dorota Godawska
- Civilization Diseases Treatment Centre, Specialist Clinics Complex, 31-559 Krakow, Poland;
| | - Jakub Marchewka
- Institute of Clinical Rehabilitation, University of Physical Education, 31-571 Krakow, Poland;
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Pound M, Massey H, Roseneil S, Williamson R, Harper CM, Tipton M, Shawe J, Felton M, Harper JC. How do women feel cold water swimming affects their menstrual and perimenopausal symptoms? Post Reprod Health 2024; 30:11-27. [PMID: 38271095 DOI: 10.1177/20533691241227100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
OBJECTIVE This study aimed to determine how women felt cold water swimming affected their menstrual and perimenopausal symptoms. STUDY DESIGN An online survey that asked women who regularly swim in cold water about their experiences. The survey was advertised for 2 months on social media. Questions related to cold water swimming habits and menstrual and perimenopausal symptoms were analysed. MAIN OUTCOME MEASURES Quantitative and qualitative data including; frequency of menstrual and menopause symptoms, the effect of cold water swimming on these symptoms. RESULTS 1114 women completed the survey. Women reported that cold water swimming reduced their menstrual symptoms, notably psychological symptoms such as anxiety (46.7%), mood swings (37.7%) and irritability (37.6%). Perimenopausal women reported a significant improvement in anxiety (46.9%), mood swings (34.5%), low mood (31.1%) and hot flushes (30.3%). The majority of women with symptoms swam specifically to reduce these symptoms (56.4% for period and 63.3% for perimenopause symptoms). Women said they felt it was the physical and mental effects of the cold water that helped their symptoms. For the free text question, five themes were identified: the calming and mood-boosting effect of the water, companionship and community, period improvements, an improvement in hot flushes and an overall health improvement. CONCLUSION Women felt that cold water swimming had a positive overall effect on menstrual and perimenopause symptoms. Studies on other forms of exercise to relieve menstrual and perimenopause symptoms may show similar findings.
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Affiliation(s)
- Megan Pound
- EGA Institute for Women's Health, University College London, London, UK
| | - Heather Massey
- School of Sport, Health and Exercise Science, University of Portsmouth, Portsmouth, UK
| | | | | | - C Mark Harper
- University Hospitals Sussex NHS Foundation Trust, Worthing, UK
- Sørlandet Sykehus, Kristiansand, Norway
| | - Mike Tipton
- School of Sport, Health and Exercise Science, University of Portsmouth, Portsmouth, UK
| | - Jill Shawe
- University of Plymouth and Royal Cornwall Hospitals NHS Trust, Cornwall, UK
| | - Malika Felton
- Department of Rehabilitation and Sport Sciences, Bournemouth University, Poole, UK
| | - Joyce C Harper
- EGA Institute for Women's Health, University College London, London, UK
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Alito A, Verme F, Mercati GP, Piterà P, Fontana JM, Capodaglio P. Whole Body Cryostimulation: A New Adjuvant Treatment in Central Sensitization Syndromes? An Expert Opinion. Healthcare (Basel) 2024; 12:546. [PMID: 38470657 PMCID: PMC10931027 DOI: 10.3390/healthcare12050546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Central sensitisation is defined as a multifactorial etiopathogenetic condition involving an increase in the reactivity of nociceptive neurons and alterations in pain transmission and perception in the central nervous system. Patients may present with widespread chronic pain, fatigue, sleep disturbance, dizziness, psychological (e.g., depression, anxiety, and anger) and social impairment. Pain can be spontaneous in onset and persistence, characterised by an exaggerated response and spread beyond the site of origin, and sometimes triggered by a non-painful stimulus. Whole-body cryostimulation (WBC) could be an adjuvant therapy in the management of this type of pain because of its global anti-inflammatory effect, changes in cytokines and hormone secretion, reduction in nerve conduction velocity, autonomic modulation, and release of neurotransmitters involved in the pain pathway. In several conditions (e.g., fibromyalgia, rheumatoid arthritis, and chronic musculoskeletal pain), WBC affects physical performance, pain perception, and psychological aspects. Given its multiple targets and effects at different organs and levels, WBC appears to be a versatile adjuvant treatment for a wide range of conditions of rehabilitation interest. Further research is needed to fully understand the mechanisms of analgesic effect and potential actions on pain pathways, as well as to study long-term effects and potential uses in other chronic pain conditions.
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Affiliation(s)
- Angelo Alito
- Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, 98125 Messina, Italy;
| | - Federica Verme
- Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, IRCCS, Istituto Auxologico Italiano, San Giuseppe Hospital, Piancavallo, 28824 Verbania, Italy; (F.V.); (P.P.); (P.C.)
| | - Gian Paolo Mercati
- Department of Surgical Sciences, Degree Course in Physiotherapy, University of Torino, 10121 Torino, Italy;
| | - Paolo Piterà
- Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, IRCCS, Istituto Auxologico Italiano, San Giuseppe Hospital, Piancavallo, 28824 Verbania, Italy; (F.V.); (P.P.); (P.C.)
| | - Jacopo Maria Fontana
- Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, IRCCS, Istituto Auxologico Italiano, San Giuseppe Hospital, Piancavallo, 28824 Verbania, Italy; (F.V.); (P.P.); (P.C.)
| | - Paolo Capodaglio
- Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, IRCCS, Istituto Auxologico Italiano, San Giuseppe Hospital, Piancavallo, 28824 Verbania, Italy; (F.V.); (P.P.); (P.C.)
- Department of Surgical Sciences, Physical and Rehabilitation Medicine, University of Torino, 10121 Torino, Italy
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Reinhart RA. Letter to the Editor regarding article Health effects of voluntary exposure to cold water - a continuing subject of debate, by Espeland, et al. Int J Circumpolar Health 2023; 82:2173714. [PMID: 36734318 PMCID: PMC9901492 DOI: 10.1080/22423982.2023.2173714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Richard A. Reinhart
- Professor of Medicine (Emeritus), East Carolina University, Greenville, NC, USA,Emeritus Physician, Marshfield Clinic Health System, Marshfield, MI, USA,CONTACT Richard A. Reinhart
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Briganti GL, Chesini G, Tarditi D, Serli D, Capodici A. Effects of cold water exposure on stress, cardiovascular, and psychological variables. Acta Physiol (Oxf) 2023; 239:e14056. [PMID: 37840386 DOI: 10.1111/apha.14056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Affiliation(s)
- Giovanni Leonardo Briganti
- Department of Biomedical and Neuromotor Science, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Giulia Chesini
- Department of Biomedical and Neuromotor Science, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Davide Tarditi
- Department of Biomedical and Neuromotor Science, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Davide Serli
- Department of Biomedical and Neuromotor Science, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Angelo Capodici
- Department of Biomedical and Neuromotor Science, Alma Mater Studiorum, University of Bologna, Bologna, Italy
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Niclou A, Sarma M, Levy S, Ocobock C. To the extreme! How biological anthropology can inform exercise physiology in extreme environments. Comp Biochem Physiol A Mol Integr Physiol 2023; 284:111476. [PMID: 37423419 DOI: 10.1016/j.cbpa.2023.111476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/11/2023]
Abstract
The fields of biological anthropology and exercise physiology are closely related and can provide mutually beneficial insights into human performance. These fields often use similar methods and are both interested in how humans function, perform, and respond in extreme environments. However, these two fields have different perspectives, ask different questions, and work within different theoretical frameworks and timescales. Biological anthropologists and exercise physiologists can greatly benefit from working together when examining human adaptation, acclimatization, and athletic performance in the extremes of heat, cold, and high-altitude. Here we review the adaptations and acclimatizations in these three different extreme environments. We then examine how this work has informed and built upon exercise physiology research on human performance. Finally, we present an agenda for moving forward, hopefully, with these two fields working more closely together to produce innovative research that improves our holistic understanding of human performance capacities informed by evolutionary theory, modern human acclimatization, and the desire to produce immediate and direct benefits.
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Affiliation(s)
- Alexandra Niclou
- Pennington Biomedical Research Center, Baton Rouge, LA, United States of America. https://twitter.com/fiat_luxandra
| | - Mallika Sarma
- Human Space Flight Lab, Johns Hopkins School of Medicine, Baltimore, MD, United States of America. https://twitter.com/skyy_mal
| | - Stephanie Levy
- Department of Anthropology, CUNY Hunter College, New York, NY, United States of America; New York Consortium in Evolutionary Primatology, New York, NY, United States of America. https://twitter.com/slevyscience
| | - Cara Ocobock
- University of Notre Dame Department of Anthropology, Notre Dame, IN, United States of America; Eck Institute for Global Health, Institute for Educational Initiatives, University of Notre Dame, United States of America.
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Schnurr E, Volz KU, Mosetter K, Ghanaati S, Hueber R, Preussler C. Interaction of Telomere Length and Inflammatory Biomarkers Following Zirconia Implant Placement: A Case Series. J ORAL IMPLANTOL 2023; 49:524-531. [PMID: 38349660 DOI: 10.1563/aaid-joi-d-22-00236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Zirconia implants have gained popularity for their aesthetic appeal and biocompatibility, making them a preferred choice for anterior teeth replacement. This study explores the interaction between telomere length and inflammatory biomarkers in seven cases of zirconia implant placement to gain insights into postoperative cellular aging, inflammatory responses, and long-term outcomes. Zirconia implants offer advantages over titanium implants, as they do not corrode or release metal ions, leading to potential inflammation and implant failure. Monitoring immune and inflammatory biomarkers is essential to assess inflammation initiation, severity, and progression. C-reactive protein (CRP) and pro-inflammatory cytokines, like interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α), play crucial roles in host immune responses, while anti-inflammatory cytokines, including interleukin-10 (IL-10), regulate and dampen immune responses. Achieving a delicate balance between pro- and anti-inflammatory cytokines is vital for maintaining a healthy immune response and preventing chronic inflammatory conditions. Telomeres, protective structures present at chromosome ends, influence cellular aging and mitochondrial function. Shorter telomeres are associated with impaired mitochondrial function, increased oxidative stress, and cellular senescence, while longer telomeres are linked to reduced inflammation and improved immune function. Understanding these mechanisms is essential for addressing age-related conditions and promoting overall well-being. In this case series, we investigated the interaction between telomere length and inflammatory biomarkers in patients who received zirconia dental implants. The study aims to improve our understanding of postoperative cellular aging, inflammatory responses, and the biocompatibility of zirconia implants, potentially leading to improved treatment protocols and patient outcomes. This innovative assessment of telomere length and inflammatory biomarkers in the context of zirconia implants provides novel insights into the field of dental implantology. By exploring the effects of zirconia implants on cellular health and inflammation, this study contributes to advancements in implant technology and patient care.
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Affiliation(s)
| | | | - Kurt Mosetter
- SDS: Swiss Dental Solutions, Kreuzlingen, Switzerland
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de Groot S, Ettema FWL, van Leeuwen CMC, Achterberg WJ, Janssen TWJ, Hoekstra SP. The Effect of Mindset and Breathing Exercises on Physical and Mental Health in Persons with Spinal Cord Injury-A Pilot Feasibility Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6784. [PMID: 37754643 PMCID: PMC10531230 DOI: 10.3390/ijerph20186784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/28/2023]
Abstract
This study investigated the feasibility and efficacy of mindset and breathing exercises (Wim Hof Method (WHM)) on physical and mental health in persons with spinal cord injury (SCI). Ten individuals with SCI participated in this pilot study. These ten participants followed a 4-week WHM intervention, with one weekly group session in the rehabilitation center and daily practice at home using the WHM app. An in-person exit-interview was conducted post-intervention to collect qualitative information on participants' experiences, regarding the feasibility and effects of the intervention. Furthermore, tests and questionnaires were administered pre- and post-intervention to assess physical and mental health outcomes. Adherence to the weekly in-person meetings was excellent and no adverse events occurred. Physical and mental health outcomes in this small sample size showed some pre-post differences. This pilot feasibility study provides preliminary evidence supporting the feasibility and efficacy of the WHM, including mindset and breathing exercises, on physical and mental health of people with SCI. These results warrant a randomized-controlled trial, including cold exposure, of this novel intervention in people with SCI.
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Affiliation(s)
- Sonja de Groot
- Amsterdam Rehabilitation Research Center, Reade, 1054 HW Amsterdam, The Netherlands;
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 BT Amsterdam, The Netherlands
| | - Frank W. L. Ettema
- Reade Center for Rehabilitation & Rheumatology, 1054 HW Amsterdam, The Netherlands; (F.W.L.E.); (W.J.A.)
| | - Christel M. C. van Leeuwen
- Centre of Excellence for Rehabilitation Medicine, University Medical Centre Utrecht Brain Centre, University Medical Centre Utrecht, 3583 TM Utrecht, The Netherlands;
- Department of Spinal Cord Injury and Orthopedics, De Hoogstraat Rehabilitation, 3583 TM Utrecht, The Netherlands
| | - Wendy J. Achterberg
- Reade Center for Rehabilitation & Rheumatology, 1054 HW Amsterdam, The Netherlands; (F.W.L.E.); (W.J.A.)
| | - Thomas W. J. Janssen
- Amsterdam Rehabilitation Research Center, Reade, 1054 HW Amsterdam, The Netherlands;
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 BT Amsterdam, The Netherlands
| | - Sven P. Hoekstra
- Department of Rehabilitation Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229-3900, USA;
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK
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Versteeg N, Clijsen R, Hohenauer E. Effects of 3-week repeated cold water immersion on leukocyte counts and cardiovascular factors: an exploratory study. Front Physiol 2023; 14:1197585. [PMID: 37711459 PMCID: PMC10497764 DOI: 10.3389/fphys.2023.1197585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/07/2023] [Indexed: 09/16/2023] Open
Abstract
Aim: This exploratory study aimed to investigate the effects of a 3-week repeated cold water immersion (CWI) intervention on leukocyte counts and cardiovascular factors (mean arterial pressure [MAP], heart rate [HR]) in healthy men. Methods: A total of n = 12, non-cold-adapted men (age: 25.2 ± 4.0 years; height: 177.8 ± 5.6 cm; weight: 73.8 ± 6.5 kg) were randomly allocated to the CWI or control (CON) group. The CWI group underwent a 3-week repeated CWI intervention (12min at 7°C, 4x/week). The CON group did not receive any cold exposure or therapy. Total leukocyte numbers and proportions (neutrophils, basophils, eosinophils, monocytes, lymphocytes) and cardiovascular factors (MAP, HR) were assessed at baseline and after the 3-week intervention period. Results: Total leukocyte count decreased in CWI (p = 0.027, 95% CI -2.35 to -0.20 × 103/µL) and CON (p = 0.043, 95% CI -2.75 to -0.50 × 103/µL). CWI showed a decrease in neutrophil number (p = 0.028, 95% CI -1.55 to -0.25 × 103/µL) and proportion (p = 0.046, 95% CI -6.42 to 0.56%). In contrast, CON showed no significant change (p > 0.05). No differences were found for other leukocyte subtypes in CWI or CON (all p > 0.05). MAP (p = 0.028, 95% CI -17 to -8 mmHg) and HR (p = 0.027, 95% CI -7 to -2 bpm) were reduced in CWI, whereas CON showed no change (p > 0.05). Conclusion: The results suggest no relevant effects of 3-week repeated CWI on leukocyte counts in healthy men. Due to methodological limitations, the effects on the investigated cardiovascular factors remain unclear. Further studies with larger sample sizes are needed to examine the effects on immune function and cardiovascular health.
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Affiliation(s)
- Ninja Versteeg
- Rehabilitation and Exercise Science Laboratory (RESlab), Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Landquart, Switzerland
| | - Ron Clijsen
- Rehabilitation and Exercise Science Laboratory (RESlab), Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Landquart, Switzerland
- International University of Applied Sciences THIM, Landquart, Switzerland
- Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Health, Bern University of Applied Sciences, Berne, Switzerland
| | - Erich Hohenauer
- Rehabilitation and Exercise Science Laboratory (RESlab), Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Landquart, Switzerland
- International University of Applied Sciences THIM, Landquart, Switzerland
- Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Health, Bern University of Applied Sciences, Berne, Switzerland
- Department of Neurosciences and Movement Science, University of Fribourg, Fribourg, Switzerland
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