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  • Title: Complex effects of whole body cryostimulation on hematological markers in patients with obesity.
    Author: Wyrostek J, Piotrowska A, Czerwińska-Ledwig O, Zuziak R, Szyguła Z, Cisoń T, Żychowska M, Pilch W.
    Journal: PLoS One; 2021; 16(4):e0249812. PubMed ID: 33886608.
    Abstract:
    BACKGROUND: Adaptation, including changes in blood properties, to whole-body cryostimulation may depend on many factors, including body mass. AIM: This study investigates whether hematological parameters change similarly in a group of people with obesity and a group of men with normal body weight after 10 and 20 cryostimulation treatments. METHODS: In our non-randomized trial, the participants were divided into two groups based on their body fat percentage: 14 men with a high (HBF = 29.35%) and 10 with a normal percent of body fat (NBF = 11.40%) and subjected to 20 whole body cryostimulation treatments (-120°C for 2-3 minutes). Blood samples were taken before the first and after the 10th and 20th cryostimulation. The following parameters were determined: red blood cells (RBC), hemoglobin concentration (HGB), hematocrit (HCT), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), platelets (PLT), red blood cell distribution width (RDW-SD), mean platelet volume (MPV), white blood cells (WBC), neutrophils (NEUT), lymphocytes (LYMPH), monocytes (MONO), eosinophils (EO) and basophiles (BASO). RESULTS: Statistically significant differences were found in red blood cells parameters such as RBC, HCT, MCV and MCHC. Time influence was noted for HCT, MCV and MCHC. Two-way ANOVA showed a significant correlation (for time and group) for 2 paramateres: RBC and MCV. For platelet parameters statistically significant differences were found for PLT (group influence) and MPV (time and group interaction). In white blood cells parameters statistically significant differences in levels of LYMPH were noted. Higher levels were observed for HBF group. CONCLUSIONS: All observed changes were within the reference range, but hematological markers changed unevenly in people who are obese and non-obese. Therefore, it appears that an amount of fat tissue could be a factor causing the differences in adaptation to low temperature. It is suggested that 20 whole body cryostimulation sessions restore the state of homeostasis disturbed after 10 sessions. TRIAL REGISTRATION: ACTRN 12619000524190.
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