Dariusz Sitkowski
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View article: Exercise capacity of male and female national team athletes in canoe slalom
Exercise capacity of male and female national team athletes in canoe slalom Open
Introduction Canoe slalom is a well-established Olympic discipline. However, scientific knowledge regarding the physiological characteristics and training adaptations of its athletes, particularly among females, remains limited. To better …
View article: Case Report: A case study of positive doping control by animal-to-human drug transfer after an athlete administered medicine in spray format, containing clostebol acetate, to a pet dog
Case Report: A case study of positive doping control by animal-to-human drug transfer after an athlete administered medicine in spray format, containing clostebol acetate, to a pet dog Open
The presence of a doping substance in an athlete's biological sample may not be only related to intentional pharmacological support. The unintended use of a prohibited substance may be due various reasons. This paper describes the case of …
View article: Reference levels of mean and peak anaerobic power for male and female long-track speed skaters
Reference levels of mean and peak anaerobic power for male and female long-track speed skaters Open
The ability to generate and maintain high power is a prerequisite for success in many sports, including long-track speed skating. A common method of determining this ability is the Wingate test, but surprisingly, normative data necessary t…
View article: Predicting Future Athletic Performance in Young Female Road Cyclists Based on Aerobic Fitness and Hematological Variables
Predicting Future Athletic Performance in Young Female Road Cyclists Based on Aerobic Fitness and Hematological Variables Open
Purpose : This study aimed to determine whether the initial levels of aerobic fitness and hematological variables in young female road cyclists are related to their athletic performance development during their careers. Methods : Results o…
View article: The effect of body size and composition on lumbar spine trabecular bone score in morphologically diverse subjects
The effect of body size and composition on lumbar spine trabecular bone score in morphologically diverse subjects Open
Aim The trabecular bone score (TBS) is a tool for assessing bone quality and health. Current TBS algorithm corrects for body mass index (BMI), as a proxy of regional tissue thickness. However, this approach fails to consider BMI inaccuraci…
View article: The Influence of Fatigue on the Characteristics of Physiological Tremor and Hoffmann Reflex in Young Men
The Influence of Fatigue on the Characteristics of Physiological Tremor and Hoffmann Reflex in Young Men Open
The aim of the study was to determine the relationship between changes in physiological tremor after exercise and changes in the traction properties of the stretch reflex indirectly assessed using the Hoffmann reflex test. The research inv…
View article: Relationships between Changes in Hematological Adaptations and Exercise Capacity in Olympic Rowers after a Period of Reduced Training Loads
Relationships between Changes in Hematological Adaptations and Exercise Capacity in Olympic Rowers after a Period of Reduced Training Loads Open
Endurance performance is positively associated with hematological adaptations; therefore, high total hemoglobin mass and intravascular volumes are commonly observed in high-level endurance athletes. However, it is still unclear whether the…
View article: Effect of training load on sleep parameters and biochemical fatigue markers in elite swimmers
Effect of training load on sleep parameters and biochemical fatigue markers in elite swimmers Open
The effect of strenuous exercise on sleep patterns in swimmers is equivocal. Therefore, the purpose of the study was to describe possible changes in sleep parameters among elite swimmers subjected to different training loads (TL). Methods:…
View article: No effects of a 4-week post-exercise sauna bathing on targeted gut microbiota and intestinal barrier function, and hsCRP in healthy men: a pilot randomized controlled trial
No effects of a 4-week post-exercise sauna bathing on targeted gut microbiota and intestinal barrier function, and hsCRP in healthy men: a pilot randomized controlled trial Open
Background Body temperature fluctuations induced by acute exercise bouts may influence the intestinal barrier with related effects on epithelial permeability, immune responses, and release of metabolites produced by the gut microbiota. Thi…
View article: Effect of Post-Exercise Sauna Bathing on Targeted Gut Microbiota and Intestinal Barrier Function in Healthy Men: A Randomized Controlled Trial
Effect of Post-Exercise Sauna Bathing on Targeted Gut Microbiota and Intestinal Barrier Function in Healthy Men: A Randomized Controlled Trial Open
Background: Body temperature fluctuations induced by acute exercise bouts may also influence the intestinal barrier with related effects on epithelial permeability, immune responses, and release of metabolites produced by the gut microbiot…
View article: The impact of physical training on neutrophil extracellular trapsin young male athletes – a pilot study
The impact of physical training on neutrophil extracellular trapsin young male athletes – a pilot study Open
Neutrophils are an important component of the innate immune response against various pathogens. However, there is a lack of research concerning the effects of short intensive training on neutrophil functions, especially neutrophil extracel…
View article: Vitamin D and upper respiratory tract infections in young active males exposed to cold environments
Vitamin D and upper respiratory tract infections in young active males exposed to cold environments Open
25(OH)D concentration has no impact on mucosal and systemic immunity, nor on URTI episodes.
View article: Benefits and limitations of electrocardiographic and echocardiographic screening in top level endurance athletes
Benefits and limitations of electrocardiographic and echocardiographic screening in top level endurance athletes Open
The study was designed to assess the usefulness of routine electrocardiography (ECG) as well as transthoracic echocardiography (TTE) in screening top level endurance athletes. An additional goal was to attempt to identify factors determini…
View article: Hematological status and endurance performance predictors after low altitude training supported by normobaric hypoxia: a double-blind, placebo‑controlled study
Hematological status and endurance performance predictors after low altitude training supported by normobaric hypoxia: a double-blind, placebo‑controlled study Open
The benefits of altitude/hypoxic training for sea level performance are still under debate. This study examined the effects of low altitude training supported by normobaric hypoxia on hematological status and endurance performance predicto…
View article: The Association between Iron and Vitamin D Status in Female Elite Athletes
The Association between Iron and Vitamin D Status in Female Elite Athletes Open
Vitamin D may influence iron metabolism and erythropoiesis, whereas iron is essential for vitamin D synthesis. We examined whether vitamin D deficiencies (VDD) are associated with reduced iron status and whether progressive iron deficiency…
View article: The differences in electrocardiogram interpretation in top-level athletes
The differences in electrocardiogram interpretation in top-level athletes Open
1. The ESC criteria identified a group of athletes that was unacceptably large, as for the screening test, requiring verification with other methods (every fourth athlete). 2. The use of the Refined criteria helps to significantly reduce t…
P673Improvement of arterial stiffness and myocardial deformation in patients with poorly controlled diabetes mellitus type 2 after optimization of antidiabetic medicationP674Clinical presentation, echocardiographic findings and complications in patients with typical and atypical form of takotsubo cardiomyopathyP675Left ventricular mass/end-diastolic volume ratio with tridimensional echocardiography in newly-diagnosed hypertensive patients: which relation between left ventricular geometry and stroke volume?P676Endothelial dysfunction: the link between arterial hypertension, diabetes mellitus and heart diseaseP677Dynamic of changes of arterial stiffness evaluated by cardio-ankle vascular index(CAVI) during the growth and development of children and adolescentsP678Peripheral arterial stiffness in pulmonary hypertension and pulmonary embolism: assessment with cardio ankle vascular index, noninvasive markers of vascular diseaseP679Early detection and prediction of CHOP-induced cardiotoxicity in nonHodgkin lymphoma by 4D echocardiography, vascular ultrasound, and cardiac biomarkersP680Right ventricular remodeling in children engaged in endurance sports: a longitudinal study in preadolescent athletesP681Electrocardiographic criteria for atria enlargement are not useful in the evaluation of junior high-dynamic high-static athletesP682Prognostic value of right ventricle, pulmonary arterial pressure and biomarkers in patients with acute heart failure: one year follow upP683One-point carotid stiffness parameters by echo-tracking method in a wide-age range of healthy population. A single center experienceP684Role of bidimensional speckle tracking longitudinal strain in the evaluation of right and left ventricular function in adult patients with transposition of the great arteriesP685Interfaces between FBN1 gene polymorphism and biomechanical parameters estimated by speckle-tracking echocardiography of dilative pathology of ascending aorta P686Layer-specific speckle tracking analysis for the detection of coronary artery disease during dipyridamole stress echoP687Stress echo in Italy: state-of-the art 2015P688The declining frequency of Inducible myocardial ischemia during stress echocardiography over 27 consecutive years (1983-2009)P689Global longitudinal strain can unmask inducible myocardial ischemia at submaximal heart rate during dobutamine stress echocardiography.P690Low risk syntax score predicted by wall motion score index during dobutamine stress echocardiographyP691Outdoor stress echo by lung ultrasound for subclinical detection of high altitude pulmonary edema with B-linesP692Predictors and consequences of infective endocarditis with perivalvular extension - a subgroup with worse short and medium-term prognosisP693Analysis of left atrial auricle morphology and function to detect considerable risk factors regarding the prevention of strokeP694LAA closure - does size really matter?P695Real assessment of mitral regurgitation by three-dimensional transesophageal echocardiographyP696Myocardial contrast dobutamine stress echocardiography for detection of coronary artery disease Open
Glycaemic control after optimizing medical treatment improves arterial stiffness, LV myocardial strain, twisting and untwisting velocity in diabetics.
View article: Left Atrial Enlargement in Young High-Level Endurance Athletes – Another Sign of Athlete’s Heart?
Left Atrial Enlargement in Young High-Level Endurance Athletes – Another Sign of Athlete’s Heart? Open
Enlargement of the left atrium is perceived as a part of athlete’s heart syndrome, despite the lack of evidence. So far, left atrial size has not been assessed in the context of exercise capacity. The hypothesis of the present study was th…
View article: Echocardiographic assessment of right ventricle adaptation to endurance training in young rowers – speckle tracking echocardiography
Echocardiographic assessment of right ventricle adaptation to endurance training in young rowers – speckle tracking echocardiography Open
The aim of this study was to determine the relationship between the degree of cardiorespiratory fitness and the function of the right ventricle (RV). 117 rowers, age 17.5±1.5 years. All subjects underwent cardiopulmonary exercise. Standard…
View article: Indirect Methods of Assessing Maximal Oxygen Uptake in Rowers: Practical Implications for Evaluating Physical Fitness in a Training Cycle
Indirect Methods of Assessing Maximal Oxygen Uptake in Rowers: Practical Implications for Evaluating Physical Fitness in a Training Cycle Open
The aim of the study was to evaluate the usefulness of indirect methods of assessment of VO2max for estimation of physical capacity of trained male and female rowers during a training cycle. A group of 8 female and 14 male rowers performed…