Exposure of the human body to cold water triggers numerous beneficial physiological changes. The study aimed to assess the impact of regular winter swimming on blood morphological, rheological, and biochemical indicators and activity of antioxidant enzymes in males. The study includes winter swimmers and a control group. Blood samples were taken twice - before the start (November) of the winter swimming season and after its end (March). The average duration of ice water baths was 3-5 minutes, with a minimum frequency of once a week. The water temperature during the swimming did not exceed 10°C, approaching 0°C during the winter period.
Age range
25 Years – 60 Years
Sex
MALE
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blood sampling: platelets and leukocytes
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: erythrocytes
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: haemoglobin
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: haematocrit
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: haemoglobin mass
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: Erythrocytes
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: rheology part 1
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: rheology part 2
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling:rheology part 3
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: oxidative stress
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: oxidative stress - superoxide dismutase
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood biochemistry: Urea
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: Testosterone
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood sampling: Cortisol
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming
blood biochemistry: Creatine
Timeframe: twice: before the start of cold swimming in November and 5 months later (March), after the end of winter swimming