Different Effects of Cyclical Ketogenic vs. Nutritionally Balanced Reduction Diet on Serum Concentrations of Myokines in Healthy Young Males Undergoing Combined Resistance/Aerobic Training.

Myokines represent important regulators of muscle metabolism. Our study aimed to explore the effects of a cyclical ketogenic reduction diet (CKD) vs. a nutritionally balanced reduction diet (RD) combined with regular resistance/aerobic training in healthy young males on serum concentrations of myokines and their potential role in changes in physical fitness.

The Influence of Cyclical Ketogenic Reduction Diet vs. Nutritionally Balanced Reduction Diet on Body Composition, Strength, and Endurance Performance in Healthy Young Males: A Randomized Controlled Trial.

(1) Background: The influence of ketogenic diet on physical fitness remains controversial. We performed a randomized controlled trial to compare the effect of cyclical ketogenic reduction diet (CKD) vs. nutritionally balanced reduction diet (RD) on body composition, muscle strength, and endurance performance.

Does impedance measure a functional state of the body fat?

The aim was to compare methods of body fat measurement in different BMI groups. An additional aim was to discuss differences reflecting the structural and functional changes of fat tissue. The study group included 130 adult Caucasian women stratified by body mass index (BMI): 18-24.

Aerobic exercise has beneficial impact on atherogenic index of plasma in sedentary overweigh and obese women.

Objective: In obese patients, we hypothesized physical exercise (PE) to affect lipids through its intrahepatic fat accumulation-lowering effect, associated with a decrease of total body fat (Fat%) and even weight (Mass).

Design And Setting: Thirty seven sedentary, non-diabetic women (BMI median 34.8) from our out-patient department were tested.

Cardiac structural and functional changes in competitive amateur cyclists.

Purpose: To assess cardiac structural and functional changes induced by competitive amateur cycling.

Methods: Fifty-one young competitive amateur male cyclists and 47 age- and gender-matched control subjects underwent complex transthoracic echocardiographic examination focused on the detailed assessment of cardiac size and function, especially of the left ventricle (LV). Subsequently, spiroergometry was performed in all study participants and its results were compared to echocardiographic data.

[Regular aerobic physical activity improves the lipid profile in persons with excessive body weight].

Unlabelled: A review of physical activity-induced lipid changes is presented. The review was compared with results we obtained in a reconditioning program involving 25 untrained obese patients who attended the reconditioning centre of the 1st Faculty of Medicine of Charles University for three months. A significant decrease was found in both HDL-cholesterol, triglycerides and the atherosclerosis index.

[Effect of physical activity on serum leptin levels].

Leptin is a protein hormone produced predominantly by adipocytes. Its serum concentrations usually reflect the total body fat content i.e.

The relationship of serum leptin levels and parameters of endurance training status in top sportsmen.

Leptin is a hormone that reflects the body fat content. It was reported that serum leptin levels were decreased in highly endurance-trained sportsmen in comparison with control non-sporting subjects. The aim of our work was to study the relation of serum leptin to blood viscosity and selected spiroergometric parameters of endurance capacity in a group of top rugby players and top race walkers.

[Effect of aerobic training in top athletes on serum leptin: comparison with healthy non-athletes].

Leptin is a protein hormone produced by adipocytes. Its serum concentration in the most of cases precisely reflect the total body fat content. The aim of our study was to follow up the influence of regular aerobic training on serum leptin levels.

Lower serum leptin concentrations in rugby players in comparison with healthy non-sporting subjects--relationships to anthropometric and biochemical parameters.

Leptin is a protein hormone synthesized by adipocytes. Its serum concentrations reflect the total body fat content. Serum leptin concentrations are significantly higher in obese than in lean people and in women than in men.

[Risk factors for ischemic heart disease in patients with chronic fatigue syndrome].

Risk factors of coronary artery disease (CAD) between a group of patients suffering of chronic fatigue syndrome (CFS) and a control group of healthy persons (whose exercise activity was not health-limited) were compared. Thirty three patients (27 women, 6 men, average age 39.9 +/- 11.

[Trends in physical fitness in male white collar workers in the Czech population over the past 20 years].

Background: Common mortality and especially mortality on CAD is increased by low aerobic component of physical fitness. A study dealing with physical fitness changes of the Czech population has been still missing in our bibliography. The aim of the study was to evaluate physical fitness changes in the Czech male population since last 20 years.

Medical and anthropological study of a world and Olympic champion, long-distance runner, 35 years after the end his racing career.

E.Z. former world champion and holder of several gold and silver medals from Olympic Games as long-distance runner, underwent at the age of 71 comprehensive investigations.

Physical fitness and CHD risk factors in operators and managers of nuclear and thermal power plants situated in environmentally different regions of the Czech Republic.

Nuclear and thermal power plants are seen as one of the threats to human health. Most investigations explore the potential hazards of radiation and the potential impact of a polluted environment. Less attention is being paid to the human factor, i.

[Is there a relation between cardiorespiratory fitness and systolic time intervals?].

Systolic time intervals measured by polycardiography significantly correlated with some spiroergometric parameters of cardiorespiratory fitness both at rest and during dynamic exercise. The correlations were mostly free. There were considerable intraindividual differences.