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    Wyświetlanie 1-7 z 7
    Tytuł:
    Visuomotor processing after progressively increased physical exercise
    Autorzy:
    Zwierko, Teresa
    Lesiakowski, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1055162.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    differentiation of visual signal
    exercise
    reaction time
    Opis:
    We assessed the effect of physical effort with increasing intensity on the visuomotor processing in physically active young men (n=22). Subjects performed three 10-minute effort-tests with increasing intensity on a cycloergometer. Each participant was assigned individual workload values below the lactate threshold (40% VO2max), at the lactate threshold (60% VO2max) and above the lactate threshold (80% VO2max). Special Ability Signal Test included in the Vienna Test System (Schuhfried, Austria) was used to examine visuomotor processing. The numbers of correct reactions and the median reaction time as a measure of the speed of the detection process were analyzed. Four Signal test recordings were taken: pre-exercise and immediately after the three subsequent effort tests. The numbers of correct reactions increased after the first effort (40% VO2max) in comparison to the pre-exercise state and then significantly decreased after the third effort test (80% VO2max). In contrast, no significant changes in time of signal detection were observed. Physical effort with high intensity might disturb the visuomotor processing in accordance to the accuracy of the visuospatial differentiation of the relevant signal within irrelevant signals.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2014, 5, 1; 27-34
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Program profilaktyki urazów w sporcie wysokokwalifikowanym
    The Injuries Prevention Programme in Highly Qualified Sports
    Программа профилактики травм в высококвалифицированном спорте
    Autorzy:
    Niewolna, Natalia
    Zwierko, Teresa
    Powiązania:
    https://bibliotekanauki.pl/articles/563735.pdf
    Data publikacji:
    2016
    Wydawca:
    Polski Instytut Ekonomiczny
    Tematy:
    kontuzje
    profilaktyka
    ćwiczenia stabilizacyjne
    piłka nożna
    sports injuries
    prevention
    stability exercise
    football
    ушибы
    профилактика
    стабилизационные упражнения
    футбол
    Opis:
    Koszty związane ze zdrowiem sportowców to nie tylko nakłady na opiekę zdrowotną i poprawę warunków treningu, ale również koszty, związane ze skutkami negatywnych zjawisk dotyczących urazów i kontuzji. Funkcjonalność organizmu jest kluczowa do realizacji maksymalnych obciążeń treningowych. Dysfunkcje w obrębie układu stabilizacyjnego skutkują nieprawidłową pracą mięśni głębokich (stabilizujących), co wpływa negatywnie na pracę mięśni powierzchownych generujących ruch. Celem badań była ocena efektywności stosowania programu profilaktyki urazów wśród wysokokwalifikowanych sportowców. Badania przeprowadzono wśród 17 zawodniczek ekstraligowego klubu piłki nożnej MKS Olimpia Szczecin. W badaniach zastosowano metodę sondażu diagnostycznego opartego na Raporcie Medycznym Polskiego Związku Piłki Nożnej. Analizie poddano zagadnienia związane z przebytymi kontuzjami w okresie 18 miesięcy, w których wprowadzono program profilaktyki urazów oparty na ćwiczeniach funkcjonalnych i stabilizacyjnych. W przebiegu stosowania ćwiczeń stabilizacyjnych oraz funkcjonalnych zauważono istotny spadek występowania kontuzji wśród badanych zawodniczek. Proponowany program profilaktyki urazów w sporcie może być rekomendowany w sporcie wysokokwalifikowanym.
    The costs related to the health of athletes are not just expenditures for healthcare and improvement of training conditions but also covering the costs that are consequences of injuries and other contusions. The functionality of their bodies is crucial to the realisation of the maximum training loads. Any dysfunction of the body’s stabilising system (the stabilising deep muscles) causes abnormal functioning of the superficial muscles which generate movement. The purpose of this study was to assess the effectiveness of using the programme that prevents injuries amongst highly qualified sportsmen. The study was conducted amongst 17 female players of the MKS Olimpia Szczecin football club. In this study, a method of diagnostic survey, which was based on Medical Reports of Polish Football Association, was used. We analysed issues related to the injuries which occurred in the time span of 18 months. During exercise intervention (baseline vs. 18-months), the programme, which prevents injuries and is based on functional and stabilising exercises, was used. While this programme was being applied, a notable drop in injuries amongst the studied athletes was noticed. The suggested prophylaxis programme could be recommended to the highly qualified sportsmen.
    Расходы, связанные со здоровьем спортсменов – это не только расходы по лечению и улучшению условий тренировки, но и издержки, связанные с последствиями отрицательных явлений, касающихся травм и ушибов. Функциональность организма – основа выполнения максимальных тренировочных на- грузок. Дисфункции в пределах системы стабилизации ведут к неправильной работе глубоких (стабилизирующих) мышц, что отрицательно влияет на работу поверхностных мышц, вызывающих движение. Цель разработки – оценить эффективность применения программы профилактики травм у высококвалифицированных спортсменов. Изучение провели среди 17 спортсменок футбольного клуба экстракласса МКС Олимпия Щецин. В изучении применили метод диагностического зондажа, основанного на Медицинском отчете Польского футбольного союза. Анализ охватил вопросы, связанные с ушибами, которые случились в течение 18 месяцев, когда была введена программа профилактики травм, основанная на функциональных и стабилизационных упражнениях. По ходу применения стабилизационных и функциональных упражнений отметили существенное уменьшение частотности выступления ушибов у обсле- дуемых спортсменок. Предлагаемую программу профилактики травм в спорте можно рекомендовать в высококвалифицированном спорте.
    Źródło:
    Handel Wewnętrzny; 2016, 6 (365); 300-308
    0438-5403
    Pojawia się w:
    Handel Wewnętrzny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Core Stability and Functional Exercises on Selected Speed and Strength Parameters in Expert Female Footballers
    Autorzy:
    Niewolna, Natalia
    Zwierko, Teresa
    Powiązania:
    https://bibliotekanauki.pl/articles/1054673.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    core stability
    football
    functional training
    motor effects
    Opis:
    Designed to strengthen the deep (stabilizer) muscles which stabilize joints and ligaments, core stability exercises are important for the development of motor skills in athletes. In this research, we aimed to determine how a two-year program of core stability and functional exercises influenced the strength and speed of female football players. The tested athletes (n = 17) were members of Olimpia Szczecin MKS, a first division football club from Poland. Their mean age was 19.8 ±1.4 years, while the mean duration of sport experience was 6 years. We analyzed their running speed, as well as the maximal strength of eight major muscle groups: rectus abdominals, abdominal oblique, shoulder girdle, chest, upper limbs, quadriceps, biceps and gastronomies. The effects of training on motor speed and strength were measured twice, prior to each of the two seasons. The functional training resulted in significant changes in the strength of various muscle groups: quadriceps (Δ17.1 kg; p < 0.05), abdominal oblique muscle (Δ9.1 kg; p < 0.05), shoulder girdle (Δ3.6 kg; p < 0.05) and chest (Δ3.5 kg; p < 0.05). There was also a significant reduction in the time of the 30 meter sprint (p < 0.05) (Δ0.1 s; p < 0.05). In summary, functional training had a positive effect on the strength and running speed of the tested female footballers.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2015, 12, 4; 91-97
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przebieg procesów sensomotorycznych i funkcji bioelektrycznej układu wzrokowego pod wpływem zwiększania intensywności wysiłku fizycznego u młodych aktywnych ruchowo mężczyzn
    THE EFFECT OF INCREASED PHYSICAL EFFORT ON VISUOMOTOR PROCESSING AND THE BIOELECTRICAL FUNCTION OF THE VISUAL SYSTEM IN PHYSICALLY ACTIVE YOUNG MEN
    Autorzy:
    Zwierko, Teresa
    Jaskólski, Artur
    Lubiński, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/books/45883369.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Opis:
    Sensorimotor processing depends on the functional status of the human body. Empirical and theoretical evidence indicate that information processing might be affected by the intensity of physical activity, complexity of task, selection of a research subjects and experimental procedures. Although there are a number of hypotheses concerning the effect of these factors on sensorimotor processing during exercise, the effect of progressively increased physical effort on visuomotor processing needs to be examined in more detail. On one hand, exercise has a beneficial effect on the excitation and activity of the central nervous system, but on the other, intense physical activity may interfere with neural signal transmission. Therefore, it is important to investigate visuomotor processing during activities with varying physical load and to determine the effect of exercise on consecutive stages of visual information processing. In particular, it is important to determine the neurophysiological correlates of early stages of visual information processing during exercise. The main objective of this study was to investigate the impact of progressively increased physical effort on visuomotor processing in physically active young men by measuring the latency and accuracy of (motor) reactions to visual stimuli appearing in the central and peripheral vision, and recording the bioelectric response of cells in visual system during the transmission of neural signals. The intensity of physical effort was manipulated using individual load (W) at (1) 40% VO2max (below lactate threshold), (2) 60% VO2max (range of the lactate threshold) and (3) 80% VO2max (above lactate threshold). Study Objectives: 1. To determine the effect of increased physical effort on latency and accuracy of motor reaction to visual stimuli appearing in the central and peripheral vision in tasks with varying complexity. 2. To determine the effect of increased physical effort on the bioelectric function of the retinal and postretinal visual pathway. 3. To determine the relationship between parameters describing the bioelectric function of visual system and parameters describing changes in the components of motor reaction to visual stimuli appearing in the central and peripheral visual field after progressively increased physical effort. Study Hypotheses: H-1. Progressively increased physical effort will affect the accuracy and latency of visuomotor processing. The direction and size of these changes will depend on the intensity of the physical effort. Specifically, as the intensity of physical effort increases the latency of motor response to visual stimuli will be reduced until a critical value of exercise intensity is reached, which will be followed by a significant prolongation of the motor response. H-2. The accuracy and latency of visuomotor processing after exercise with increasing intensity will depend on the level of complexity of the task. Motor performance will be less accurate and slower when the complexity of the task is higher after exercise with increased intensity of physical effort H-3. Physical effort will affect the early sensory stage of visual information processing, as measured by changes in the bioelectric function of the retina and postretinal visual pathway. H-4. There will be a positive relationship between (i) changes in bioelectric response of the retina and postretinal visual pathway and (ii) changes in the course of visuomotor processing after exercise. These relationships will shed light on the nature of the interactions between the functional alterations of neuronal functions in the visual system and the effectiveness of the visuomotor processing after exercise with increasing intensity Methodology Subjects. Thirty eight physical education students (experimental group) who were not professional sportsmen (men aged 21.39 ± 1.2 years) were recruited from the Institute of Physical Culture at the University of Szczecin. All subjects participating in the experiment had intact basic functions of the eye, confirmed by routine eye examinations. In addition, three experiments of the study involved a control group of 15 people, selected according to the same criteria as for the experimental group. Procedure. Subjects completed one effort test with incremental intensity using a cycloergometer (Monark E834, Varberg, Sweden), The experiment began with a 10 min rest in a reclining position, after which time blood was collected from a finger for biochemical determinations. Subjects completed a 5-min warm up at 25 watt (W). The effort- test commenced at 70 W, with 70 revolutions per min (rpm). The exercise continued with an increasing workload (20 W increments every 3 min) until refusal. During the last 15 sec of each 3-min effort at a given workload, capillary blood samples were drawn from a fingertip for the enzymatic determination of blood lactate concentration (Dr Lange Cuvette Test LKM 140, Germany) using miniphotometer LP 20 Plus (Dr Lange, Germany). Resting heart rate and its change during exercise was measured using a Polar S610 heartrate monitor (Polar, Finland. Oxygen consumption during exercise was estimated using an Oxycon gas analyzer (Jaeger, Germany). Individual lactate threshold was calculated using a linear regression graph log LA and the log of effort intensity. Based on the results of the exercise test, each subject was assigned an individual workload value (W) at (1) 40% VO2max – load value below the lactate threshold, (2) lactate threshold, which in the case of the experimental group was on average approximately 60% of VO2max ( x % VO2max = 60.79) and (3) 80% VO2max (above lactate threshold). Dependent Variables. The latency and accuracy of visuomotor processing were measured using the Vienna Test System 29.1 (Schuhfried, Austria). The following parameters were measured: simple motor reaction to stimuli appearing in the central visual field (S1 version), differential motor reaction to stimuli that appear in central visual field (S4 version) and differential motor reaction to stimuli that appear in peripheral visual field (peripheral perception test). Bioelectrical function of the visual system was evaluated using clinical examinations established in accordance with the current procedures of ISCEV international standards, i.e. protocol established by the International Society for Clinical Electrophysiology of Vision. An electoretinogram was used to evaluate retinal function (system UTAS-E 2000 LKC Technology, Gaithersburg, MD, USA). Retinal bioelectric function was estimated using a full-field flash electroretinogram ERG (LKC UTAS-E-2000 LKC Technology, Gaithersburg, MD, USA.). Visual evoked potentials (VEPs) recordings were recorded to measure the neural conductivity of the visual pathway. VEPs were recorded with a Reti Scan (Roland, Germany). Three experiments were performed in order to evaluate the effect of exercise on the visuomotor processing. During the experiments tests were carried out to measure reaction times to stimuli appearing in the central and peripheral visual field. The order of the tasks was randomized. The first reaction test (T) recording was performed at rest (T0). A 5-min warm-up on the cycloergometer (max 25 W) with the individually established frequency of revolutions, preceded the first 10-min effort (W1) at an intensity below lactate threshold (40% VO2max, 68-72 rpm). Directly after the effort, reaction test recording was performed (T1). The participant then performed a 10-min effort (W2) at the lactate threshold intensity (60% VO2max, 68-72 rpm), followed by the next reaction test recording (T2). Subsequently, a 10 min exercise was performed (W3), at an intensity above the lactate threshold (80% VO2max, 68-72 rpm) after which the reaction test recording was made (T3). During the experiment, heart rate was monitored. In the control group, the examinations involved 4 reaction test recordings made in 10 min intervals without physical effort. Two experiments were performed in order to estimate the retinal bioelectric function, (1) under scotopic conditions and (2) under fotopic conditions. In both experiments, monocular stimulation was performed using the right eye. The contact lens electrode was applied to the subject’s topically anaesthetised cornea and the first electoretinogram was recorded in resting conditions (ERG0). The subsequent three ERG recordings (ERG1, ERG2, ERG3) were made immediately after efforts with incremental intensities performed on a cycloergometer (W1, W2, W3). Similarly to the previous procedure, W1 was preceded by a 5 min warm-up (R) and the exercise on the cycloergometer during the consecutive 10 min efforts was performed at the established frequency of pedal revolutions (68–72 rpm). In the clinical experiment, also a fifth ERG examination was made (ERGk) in control conditions – 1 hour after the completion of the last exercise. The purpose of the third clinical experiment was to analyze the effects of physical effort with increasing intensity on the visual evoked potentials (VEPs). By using pattern- reversal VEPs elicited by checkerboard stimuli with large and small checks, visual stimulation for right eye was applied. The procedure was conducted as in the ERG experiments. Results and Conclusions 1. In a group of young and physically active men, progressively increased physical effort caused varied changes (in the direction and range) in the latency of visuomotor processing. Reaction time to visual stimuli decreased during exercise until a critical value of exercise intensity was reached. When the critical value of intensity was reached reaction time stabilized or increased. The critical value of exercise intensity depended on the complexity of the sensorimotor task: the higher the level of complexity, the higher exercise intensity at which the critical point occurred. 2. Changes in the accuracy of responses after progressively increased physical effort were related to the degree of complexity of the task. For tasks of lesser complexity, the accuracy of motor response was not affected by the intensity of exercise. In contrast, when performing tasks of greater complexity, the accuracy of visuomotor processing was enhanced by low-and-moderate intensity effort (40% and 60%VO2max) and accuracy was reduced by high intensity effort (80% VO2max). 3. Bioelectrical retinal cell response depended on the intensity of exercise. The increase in the intensity of exercise distorted the internal functions of retinal cell layers to a greater extent than retinal receptor functions. Consequently, retinal sensitivity to changes in bioelectric function was greater under scotopic conditions than under photopic conditions after increased physical effort. 4. Exercise with increasing intensity affected the course of bioelectrical neuronal activity in the postretinal visual pathway. Changes in the parameters of visual evoked potentials depended on exercise intensity and the type of pattern used in stimulation. Increased exercise intensity was accompanied by the impairment of bioelectrical function in the postretinal visual pathway, indicating the possibility of signal transmission delays caused by visual fatigue induced by exercise. 5. Concurrent and delayed relationship between the bioelectric function of the visual system and the effectiveness of visuomotor processing was observed under the conditions of progressively increased physical effort.
    Dostawca treści:
    Biblioteka Nauki
    Książka
    Tytuł:
    The Differentiation of Visual Sensorimotor Processes in the Representatives of Various Sport Disciplines
    Autorzy:
    Lesiakowski, Piotr
    Krzepota, Justyna
    Zwierko, Teresa
    Powiązania:
    https://bibliotekanauki.pl/articles/1055208.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    reaction time
    selective attention
    sport training
    Opis:
    Sport activities usually require a high efficiency of visual information processing. Therefore, it seems justified to determine the efficiency of visual sensorimotor processes in sports requiring a variety of perception competencies. The aim of this study was to assess the differentiation of sensorimotor processes in terms of simple and choice reaction time, and visual stimulus discrimination in various athletes and untrained persons. The study involved 119 men, of which 95 were athletes: football players (n = 24), volleyball players (n = 22), boxers (n = 26), and rowers (n = 23). The efficiency of sensorimotor processes was evaluated with the Vienna Test System (Schuhfried, Austria). The evaluations included simple reaction time (SRT), choice reaction time (CRT), and visual stimulus discrimination. Analysis of the results showed that volleyball and football players had shorter (p < 0.01) reaction times compared to non-athletes and representatives of the other sports. We found significant differences (p < 0.01) between athletes and non-athletes in visual stimulus discrimination. In addition, boxers showed fewer correct reactions than volleyball players, and shorter times of stimulus detection than in volleyball and soccer players.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2017, 19, 3; 43-53
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seasonal variation of speed, agility and power performance in elite female soccer players: effect of functional fitness
    Autorzy:
    Stepinski, Miłosz
    Ceylan, Halil Ibrahim
    Zwierko, Teresa
    Powiązania:
    https://bibliotekanauki.pl/articles/1921950.pdf
    Data publikacji:
    2020-02-12
    Wydawca:
    PPHU Projack Jacek Wąsik
    Tematy:
    functional performance assessment
    physical performance examination
    Women's soccer
    Opis:
    The purpose of this study was to evaluate the changes of speed, agility and power performance during one soccer season and the impact of functional fitness on changes in motor performance in elite female soccer players. This study was conducted with 18 members of the Polish Women's National Football Team. The analyzed training season was divided into four training phases. Physical performance was assessed by a test of quickness - the 5m sprint, tests of maximal speed - the 30 m sprint, test of agility L-run test and tests of lower limb explosive power - counter movement jump (CMJ) and counter movement jump with arm swing. Functional fitness was assessed using the Functional Movement Screen (FMS). Individual functional training as well as a training plan based on FIFA 11+ prevention were utilized. The analysis showed significant improvement in the CMJ test (F=3.02, p<0.05) and FMS score (F=5.959, p<0.01) during the in-season. Other parameters of physical performance were stable during the evaluation period. Positive correlations between baseline FMS score and changes of athletes' 30m sprint performance (r=-0.48, p<0.05), total in-season change of FMS score and total inseason change of 5m sprint performance (r=-0.53, p<0.05) were observed. Female soccer players during the in-season demonstrated a relatively good level of physical performance which corresponds to their particular training phase. Functional fitness intervention appears to be an effective way of improving speed, acceleration, and power performance in elite female soccer players.
    Źródło:
    Physical Activity Review; 2020, 1, 8; 16-25
    2300-5076
    Pojawia się w:
    Physical Activity Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The ability to maintain attention during visuomotor task performance in handball players and non-athletes
    Autorzy:
    Zwierko, Teresa
    Florkiewicz, Beata
    Fogtman, Sławomir
    Kszak-Krzyżanowska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1054843.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    sustained attention
    handball
    reaction time
    Opis:
    One of the important aspects of attentional processes in sport performance is sustained attention during task execution. The objective of this study was to analyze the ability to maintain attention during a serial reaction time task performance in expert handball players (n = 12) and non-athletes (n = 12). Participants p erform a FitLight TrainerTM (Fitlight Sports Corp., Canada) test protocol configured by the PDA controller which consisted of 10 series of simple motor reaction task to visual stimuli appearing on 8 wireless light discs. Each of the 10 series included 22 reactions. Ability to maintain attention was determined by analyzing the variability in results during testing, e.g. the total time of test execution and the average reaction time to visual stimulus in each subsequent series. The main finding in our study was that Non-athletes in comparison to Athletes had: (1) longer total time of test execution; (2) longer reaction time; (3) and higher variability in results during task performance. The results indicate a higher level of ability to maintain attention in handball players.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2014, 7, 3; 99-106
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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