Mateusz Rynkiewicz

University of Zielona Góra | UZ · Department of Physical Education

Regular exercise plays an important preventive and therapeutic role in heart and vascular diseases, and beneficially affects brain function. In blood, the effects of exercise appear to be very complex and could include protection of vascular endothelial cells via neurotrophic factors and decreased oxidative stress. The purpose of this study was to...

Thermovisual studies are widely applied to the medical sciences. Usually, the thermovision method is used to evaluate various pathological lesions. Sporadically, thermography has been used often to assess the effects of sport exercises involving single muscle groups. No efforts have thus far been undertaken to gauge the usefulness of the thermovisi...

Introduction: The ability to maintain one's balance plays vital role during the activities of daily living. Efficient maintenance of body balance is determined by the number and type of stimuli providing information on a body position. The aim of this study was to analyze the ability to maintain balance in 7-to 12-year-old children. We analyzed the...

Introduction: The ability to maintain one's balance plays vital role during the activities of daily living. Efficient maintenance of body balance is determined by the number and type of stimuli providing information on a body position. The aim of this study was to analyze the ability to maintain balance in 7-to 12-year-old children. We analyzed the...

AIM: The aim of this study was to identify factors that affect sports performance in kayaking. METHODS: We examined condition- and coordination-related motor skills of 18 male kayakers (mean age: 16.2 years) and determined relationships between these motor skills and sports performance. We also attempted to define the typical level of motor skill f...

Carnosine is a dipeptide formed from the amino acids β-alanine and histidine and found in large amounts in the brain and muscle, especially fast twitch muscle. Carnosine has an antioxidant role and accounts for about 10% of the muscle's ability to buffer the H+ ions produced by high intensity exercise. Due to the interesting role of carnosine, the...

Tennis is a game with a typical structure of acyclic movements, requiring condition and coordination abilities. Amongst those is the level of dynamic strength, which has a significant impact on the sporting achievements in tennis. The purpose of the study was to assess the utility of a new method of measuring the dynamic strength of a serve. It was...

Aim: The aim of the present study was to investigate possible changes in the plasma pro-inflammatory cytokines levels in response to an intensified training during preparatory period for the new season (preseason, December), and relation to reactive oxygen and nitrogen species (RONS) and body composition in highly trained athletes. Methods: Forty-o...

The aim of this study was to determine the extent of asymmetry of spinal segment mobility in canoeists. Moreover, the relationship between this parameter and racing speed was analyzed. The study included 18 canoeists with a mean age of 16.4 years. Mobility of cervical, thoracic and lumbar spine, in sagittal, coronal and transverse planes, was measu...

Background. Research has been undertaken to evaluate the effectiveness of Performance Stability Tests as a tool for estimation of the degree of exposure of kayak competitors’ biokinematics chain to dysfunction and, by extension, to sport injuries. Two hypothesis were put forward: 1. There are no weak connections in biokinematics chain in kayakers....

Available literature lacks reports examining the asymmetry of kayak paddling technique and particularly its determinants as well as the variability in relation to the sport level and gender of the athlete. Consequently, this study aimed to reveal: 1) changes in the asymmetry of the paddling technique resulting from athlete’s gender and the distance...

Wstęp. Kształtowanie siły u kajakarzy może spowodować ograniczenie ruchomości kręgosłupa i objawy bólowe. Ze względu na rangę problemu podjęto badania w celu: 1. Określenia związku pomiędzy zakresem ruchomości odcinka lędźwiowego kręgosłupa a stażem treningowym w kajakarstwie. 2. Ustalenia zależności pomiędzy występowaniem słabych ogniw i objawów b...

Strength shaping in canoeists can cause limitation of spine movement and pain symptoms. Because of the problem's importance the following study has been undertaken: in order to: 1) determine the relationship between the range of lumbar spine mobility and training experience in kayaking; 2) estimate of the relationship between the occurrence of weak...

Background: The purpose of this study was to determine the relationship between body composition, aerobic capacity and the balance in young tennis players at rest and during fatigue triggered by an endurance test. Moreover, we tried to find the correlation between the tennis ranking position and the balance. Material/Methods: Well-trained 16 young...

Background and Study Aim: Since the ability to maintain balance is significant to efficient fighting, research was carried out in order to determine the level of the ability to maintain static balance among the Polish elite of sumo sportsmen depending on the engagement of visual receptors. Material/Methods: Research group comprised 41 best Polish m...

Purpose. The study aims at assessment of body composition and muscle mass distribution in advanced kayakers. Kayak paddlers should be characterized by large body mass with a significant percentage of muscle mass, especially in the trunk region. Basic procedures. The sample consisted of 26 kayakers. The body composition and muscle mass distribution...

Background Motives are dynamic in character and prone to constant variation with the changing age, training experience, and and Study Aim: sporting level of individuals practicing amateur sumo. The aim of this research was to identify dominant motives and the way they are being shaped by these influences.Material/Methods: Researched were 72 individ...

The aim of the research was to determine the level of ability to maintain static balance in young competitors of cyclic sports as well as to reveal the influence of gender and body mass on the ability's features. The study attempted to determine the range and direction of the ability to maintain static balance depending on the practiced sport. The...

Background and Study Aim: Amateur sumo is one of rather few sports which can provide overweight and obese individuals with an opportunity to exercise their bodies, mold attitudes and learn a value system. The goal of this research was to identify health-oriented attitudes in sumo wrestlers depending on their age category. Material/Methods: Research...

The aim of the paper was to determine maximal isometric strength (global and local), its time of development as well as global and local strength accuracy in water polo players. The research sample consisted of 12 water polo junior players representing the Polish Junior National Team (age 16.7 years; weight 74.8 kg; height 179.9 cm). Maximal global...

Introduction. The ability to maintain one's balance depends on avariety of coordination skills and is necessary both for performing sports and everyday activities. Aim of Study. 1. To determine the ability of water polo players from the Polish junior national team to maintain static body balance; 2. To analyze the effects of body mass on the basic...