Time-of-Day Effects on Anaerobic Power and Concentration of Selected Hormones in Blind Men.

Knowledge of the circadian rhythm of the blind person and diurnal changes in anaerobic power and hormones concentration can create the possibility of individualising physical training. The aim of the study was to examine the time-of-day effects on anaerobic performance and the concentration of selected hormones. The measurements were performed at two different times of the day (10:00 a.

Physiological response and cardiorespiratory adaptation after a 6-week Nordic Walking training targeted at lipid oxidation in a group of post-menopausal women.

This study examined the effects of a 6-week Nordic Walking (NW) training, at the intensity corresponding to the dominance of lipid metabolism, on the levels of selected physiological indices, the haemodynamic indices of the cardiovascular system and physical fitness in sedentary women older than 55 years of age. In addition, the physiological response of the female body to the walking effort on treadmill with poles (NW) and without poles (W) was compared and the influence of training on this response was determined. A single group study with a pre-test/post-test study design was conducted.

Effects of 6-week Nordic walking training on body composition and antioxidant status for women > 55 years of age.

Objectives: This study examined the effects of 6-week Nordic walking (NW) workout with individually customized intensity, on the body composition, and oxidative stress biomarkers for women > 55 years of age.

Material And Methods: Sixteen sedentary women (age 58.1±2.

Effects of a 6-week Nordic walking training on changes in 25(OH)D blood concentration in women aged over 55.

Background: Nordic walking is a form of physical activity recommended for people of all ages and it is used in disease prevention and health promotion. The study was aimed to determine if and in what ways a six-week Nordic walking training program in late autumn may affect 25(OH)D concentration in postmenopausal overweight women.

Methods: Two series of measurements were carried out in a group of 17 women aged 57±4.

The influence of a 12-week program of physical activity on changes in body composition and lipid and carbohydrate status in postmenopausal women.

Introduction: For years there have been studies on what kind of physical activity is optimal for maintaining proper health condition. Besides well known and approved endurance training of moderate intensity, an importance of interval exercise where short term, sudden intensification of work is performed at low endurance load is emphasized. The aim of the work was to assess the effects of a program of physical activity applied to postmenopausal women regarding improvement of their body composition and biochemical indices of lipid and carbohydrate status.

Effect of creatine malate supplementation on physical performance, body composition and selected hormone levels in spinters and long-distance runners.

Purpose: The aim of the study was to determine whether creatine malate (CML) supplementation results in similar ergogenic effect in sprinters and long-distance runners. The other goal was to compare changes in body composition, physical performance and hormone levels after six-week training in athletes, divided into subgroups supplemented with creatine malate or taking placebo.

Results: Six-week supplementation combined with physical training induced different effects in athletes.

Coordination and propulsion and non-propulsion phases in 100 meter breaststroke swimming.

Purpose: The main purpose of this study was to analyze the coordination, propulsion and non-propulsion phases in the 100 meter breaststroke race.

Methods: Twenty-seven male swimmers (15.7 ± 1.

The influence of winter swimming on the rheological properties of blood.

The aim of this study was to analyze the changes in blood rheology resulting from regular winter swimming. The study was carried out on 12 male winter swimmers. Venous blood for morphological, biochemical and rheological analysis was sampled twice from each winter swimmer - at the beginning of the season and after its completion.

Disturbances in pro-oxidant-antioxidant balance after passive body overheating and after exercise in elevated ambient temperatures in athletes and untrained men.

The aim of the study was to investigate pro-oxidant-antioxidant balance in two series of examinations with two types of stressors (exogenous heat and the combined exogenous and endogenous heat) in trained and untrained men. The exogenous stressor was provided by Finnish sauna session, whereas the combined stressor was represented by the exercise in elevated ambient temperature. The men from the two groups performed the physical exercise on a cycle ergometer with the load of 53 ± 2% maximal oxygen uptake at the temperature of 33 ± 1 °C and relative humidity of 70% until their rectal temperature rose by 1.

Intra-cyclic phases of arm-leg movement and index of coordination in relation to sprint breaststroke swimming in young swimmers.

Despite the limitations set by FINA regulations, execution technique in breaststroke swimming is being improved thanks to more and more advanced analyses of the efficiency of the swimmer's movements. The aim of this study was to detect the parameters of the time structure of the cycle correlated with the maximal swimming speed at the of 50 meters distance, in order to focus to specific technical aspects in the breaststroke training. In the group of 23 participants, between the age of 15.

The influence of ambient temperature on power at anaerobic threshold determined based on blood lactate concentration and myoelectric signals.

Objectives: To compare the mechanical power and physiological parameters in males at the lactate (LAAT) and integrated electromyographic (IEMGAT) anaerobic thresholds during exercise testing at 23 degrees C, 31 degrees C and 37 degrees C.

Materials And Methods: Fifteen men aged 21.9+/-1.