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EN
The aim of study is to present rules of training in mountain conditions relating to the planning of training programs. The review of literature allows us to understand the course of physiological changes during acclimatization in mountains and it also helps us to distinguish human responses in acute phase from responses during subsequent processes of adaptation. The benefits of preparation which are results of training in the mountains are as follows: increased transport of oxygen to the muscles, improvement of the blood functions associated with the transport of oxygen, increased aerobic capacity, which affects the growth of buffering ability of muscles and blood.
EN
The mechanical, chemical and physical property of Alkaleri fireclay was investigated for its appropriateness for refractory application. The chemical composition was performed and analyzed using the X-ray fluorescence (XRF) spectrometer Bench top XRF analyzer technique. Chemical property result indicated that the clay contained 67.4 % silica (SiO2), 30.06 % aluminum (Al2O3), and other impurities. The clay was subjected to mechanical activation through sintering process at varied sintering temperatures of 900 °C, 1000 °C, 1100 °C and 1200 °C. At the best sintering temperature of 1200 °C, the cold crushing strength (CCS) was 17.82 MPa, in the physical properties; apparent porosity was 22.8 %, bulk density was 1.8 g/cm3, and firing shrinkage was 8.9 %. The Alkaleri clay belongs to alumino-silicate fireclay group and therefore, suitable materials for refractory application of ladle, kiln dryer, boilers, cook stoves, furnace lining and bricks.
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An Element-Based Approach to Ukrainian Back Fricatives

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EN
The discussion offered in this article focuses on the problem of the back fricative segments in Ukrainian. An attempt is made to provide their phonological representations that account both for their distribution and phonological behavior. The analysis proposed here is coached within the framework of Government Phonology, a non-linear model, that awards considerable autonomy to phonological primitives building melodic expressions. Our concern, therefore, is to specify which elements define each of the turbulent sounds and determine the role they play within the relevant melodic structures. In accordance with the principles of the framework, it is predicted that the internal elemental content and organization of primes directly conditions the phonetic manifestation of the fricative segments. The aim of the present analysis is also to pinpoint the significance of the head-dependent distinction that obtains within melodic structures, as it often underlies, if not determines, the strength of expressions and their susceptibility to phonological processes.
EN
Short term secular change in body size and physical fitness of Polish youth 7-15 years of age resident in an industrial region of Lower Silesia in southwestern Poland was considered across two surveys, 2001-2002 and 2010-2011. Subjects were students in the same schools in both surveys 1892 boys and 1992 girls in the first and 1237 boys and 1236 girls in the second. In addition to height and weight, performances in six fitness tests were measured in each survey. Height, weight and BMI increased significantly across surveys. Statistically controlling for secular gains in height and weight, only static strength (hand grip) and running speed - agility (shuttle run) improved significantly between surveys in three age groups (7-9, 10-12, 13-15 years), while explosive power (standing long jump) showed negligible changes except in girls 13-15 years among whom performances declined significantly. Speed of upper limb movement (plate tapping), flexibility (sit and reach) and trunk strength (sit-ups) declined between surveys, except for trunk strength in boys 13-15 years which did not change. In conclusion, after statistically controlling for secular gains in body size, physical fitness items changed variably over the decade.
EN
Objective: The aim of this study was to verify the influence of a specific exercise program on the strength and resistance levels of lumbar flexors and extensors in warehouse workers. Materials and Methods: The population used in this randomized controlled trial included 557 warehouse male workers from a food distribution company in Oporto/Portugal. Upon the application of the selection criteria, 98 workers deemed eligible were randomized in two groups: 57 were assigned to the intervention group and 41 to the control group. The intervention included 9 easily-executed exercises to promote stretching and strengthening of the lumbar region, to be executed daily, at the beginning of the working time, at the company facilities and lasting 8’. Trunk muscles’ voluntary strength and resistance were measured using an isometric electronic dynamometer (Globus Ergometer, Globus, Codigné, Italy) at baseline and eleven months after implementing the exercise program. The data was analyzed using SPSS®, version 17.0. Results: After implementation of the exercise program, in the intervention group, all variables increased, significant differences were observed as for the muscle strength and resistance values (p = 0.014 and p = 0.006, respectively), as well as in the ratio extensors/flexors (p = 0.037). In the control group, all variables decreased, with a statistically significant decrease of the trunk flexors strength level (p = 0.009). Conclusion: The results of this study suggest that a specific exercise intervention program can increase trunk extensors strength and resistance.
EN
The article describes the second phase of the work of the centre “SKIF”, which is aimed at stimulation of the leading physical qualities of pupils with sensory impairments. The attention is focused on defining their development factors as well as methods and means that solve remedial and sports challenges. The following research methods were used: theoretical – analysis of special pedagogical literature on the identified problem; practical – leading preparatory-training-remedial stage of work with children at the centre “SKIF”, empirical – calculations and comparative characteristics of the results. Throughout this stage in order to improve technology, enhance training effects and facilitate the integration of children with sensory impairments, experts in the field of physical culture practice repeated exercise. Their selection, the regulation of the duration and intensity determine the nature and degree of impact on the body of pupils, and develop their abilities. It is concluded that correctional-developing component of the pedagogical activities of the centre “SKIF” is closely connected with teaching children with sensory motor impairments and impairments in the development of motor skills. Therefore, at the second – preparatory-training-correction stage a complex of sports and remedial and rehabilitation activities is carried out, during which considerable attention is paid to the formation of high physical or athletic skills and achievement or to improving performance in the indoor football due to competitive activity. This puts high demands on the physical and psychological fitness of a footballer with a disability, so children playing indoor football and doing other kinds of sports activities in the centre “SKIF”, work on individual correction-rehabilitation programs. Each section shows the close connections of education, upbringing, correction of the broken functions and rehabilitation after physical loads. All measures in the frames of the programs provide comprehensive physical, mental and moral development of pupils. Prospects for further research in this direction are seen in the improvement of correction-rehabilitation and health-protection stages of the activities of the centre “SKIF”
EN
AIM The aim of the article is an attempt to determine the differences in the conditionings of locomotion speed between the group of girls and the group of boys, and to show the dependency between manifestations of locomotion speed and somatic and motor parameters in both groups. MATERIAL AND RESEARCH METHODS The research was performed on the group of fifty 16-year-old students from Junior High School no 1 in Kołobrzeg (25 girls and 25 boys). In relation to somatic features, body weight and height were reported. Moreover, the following tests were performed: locomotion speed (20-metre sprint from a flying start and 60-metre run from the low start), dynamic strength (both feet long jump from place), the overall strength (overhead backward medicine ball throw with both hands, standing with feet hip width apart, and forward medicine ball throw with both hands, standing with feet hip width apart). The results were statistically analyzed. RESULTS A high correlation was found between body height and results in both races (20-metre sprint from a flying start and 60-metre run from the low start) in the female group. While in the male group, a significant correlation between speed and body weight was observed. Long jump from place correlated with speed samples – in the female group the correlation was moderate and in the male group it was on a high level. The analysis of dependency between strength tests (backward and forward medicine ball throw) and speed samples (20-metre sprint from a flying start and 60-metre run from the low start) in the female group indicates the lack of correlation between these samples. The dependency between strength tests and speed tests in the male group is high and significantly differs from the one that characterizes the female group. CONCLUSIONS 1. Muscle strength tests occurred to be a much better criterion for the symptoms of locomotion speed in the male group than in the female group. 2. Somatic features play an important role in speed symptoms in both groups. 3. Sexual dimorphism of studied motor qualities with a predominance of a male group was shown.
PL
CEL. Celem pracy jest próba ustalenia różnic w uwarunkowaniach szybkości lokomocyjnej między grupą dziewcząt i chłopców oraz wykazanie zależności między przejawami szybkości lokomocyjnej a parametrami somatycznymi i motorycznymi w obu tych grupach. MATERIAŁ I METODY BADAŃ. Badania przeprowadzono na grupie 50 uczniów Gimnazjum nr 1 w Kołobrzegu (25 dziewcząt i 25 chłopców) w wieku 16 lat. Z cech somatycznych odnotowano masę i wysokość ciała, ponadto wykonano następujące próby: szybkości lokomocyjnej (bieg na dystansie 20m ze startu lotnego i bieg na dystansie 60m ze startu niskiego), siły dynamicznej (skok w dal z miejsca obunóż), siły ogólnej (rzut piłką lekarską oburącz z postawy rozkrocznej w tył znad głowy i rzut piłką lekarską oburącz z postawy rozkrocznej w przód). Wyniki badań poddano analizie statystycznej. WYNIKI. W grupie żeńskiej wykazano dużą zależność pomiędzy wysokością ciała, a rezultatami w obu biegach (na dystansie 20 m ze startu lotnego i bieg na dystansie 60m ze startu niskiego), natomiast w grupie chłopców, znaczącą korelację szybkości odnotowano w stosunku do masy ciała. Skok w dal z miejsca korelował z próbami szybkości, przy czym w grupie dziewcząt w sposób umiarkowany, natomiast w grupie męskiej na poziomie wysokim. Analiza zależności prób siłowych (rzut piłką lekarską w przód i w tył) z próbami szybkościowymi (bieg na dystansie 20 m ze startu lotnego i bieg na dystansie 60m ze startu niskiego) w grupie dziewcząt wskazuje na brak związku pomiędzy tymi próbami. Zależność próby siły z próbami szybkościowymi biegów w grupie chłopców jest wysoka i istotnie różni się od grupy dziewcząt. WNIOSKI. 1. Próby siły mięśniowej okazały się znacznie lepszym kryterium dla przejawów szybkości lokomocyjnej w grupie chłopców niż w grupie dziewcząt. 2. W obu grupach badawczych cechy somatyczne odgrywają znaczącą rolę w przejawach szybkości. 3. Wykazano dymorfizm płciowy badanych cech motorycznych z przewagą grupy męskiej.
EN
Objectives The aim of this study is to evaluate 2-point discrimination sense (2PD), strength and kinesthetic differentiation of strength (KDS), range of motion (ROM) and kinesthetic differentiation of movement (KDM) dysfunctions in occupationally active women with mild and moderate forms of carpal tunnel syndrome (CTS) compared to a healthy group. Material and Methods The 2PD sense, muscle strength and KDS, as well as the ROM and KDM of the radiocarpal articulation were assessed. Results The results of the 2PD sense assessment showed significantly higher values in all the examined fingers in the CTS women group compared to healthy women (p < 0.01). There was a significant difference in the percentage value of error in the strength and KDS of pincer and cylindrical grips (p < 0.01) in the CTS women group compared to healthy women. There was no difference in the ROM of flexion and extension between studied groups (p > 0.05). There was a significant difference in the percentage value of error in the KDM of flexion and extension movement of the radiocarpal articulation (p < 0.01) between the studied groups. Conclusions There are significant differences in the 2PD sense, KDS and KDM in occupationally active women with mild and moderate forms of CTS compared to healthy women. There are no significant differences in ROM in professionally active women with mild and moderate forms of CTS compared to healthy women. Int J Occup Med Environ Health. 2019;32(2):185–96
EN
The article aims at studying scientific and educational literature that highlights some issues of physical self-actualization of students during sambo classes, as well as its impact on the development of physical skills and coordination abilities of fighters. The research methods are the following: analysis of scientific and educational literature on general and special physical training of an unarmed self-defense sportsman, systematization and synthesis of information received; methods of observation, introspection, self-esteem, which are used in a student’s physical self-actualization. The article considers some questions of physical self- actualization of students during sambo classes and briefly presents the main stages of the structure of student’s self-actualization in the development of the main physical qualities of an unarmed self-defense sportsman. Based on scientific sources there have been described such fighter’s physical qualities as speed, agility, endurance, strength, flexibility, and some exercises contributing to their development are given. Due attention is focused on the importance of coordination skills when performing techniques. Modernized Cossack complex exercises that promote strength, courage, agility, speed and the ability to instantly calculate the time by an unarmed self-defense sportsman and quickly act in unexpected situations are recommended, and one can find a detailed description of the exercises "Grasshopper" and "Skipjack". In the process of the study the authors concluded that engaging in sambo, a student passes a cycle of comprehensive development and multiple testing of his will, tenacity, workability, promotes persistence in achieving goals, self-discipline, self-control of feelings and emotions. He becomes mature and courageous, ready to defend the Fatherland. He also realizes that to defeat a rival in sambo one must perfectly possess many physical qualities, which can only be achieved through constant hard and purposeful powerful self-actualization. Physical student’s self-realization promotes good health of his organs and systems, increases their functionality, development of motor skills, and improves coordination abilities. Based on the analysis of scientific sources, the authors define sambo as one of the foreground ways of student’s physical self-actualization.
EN
The article analyzes age characteristics of students during power sports classes in higher education institutions, examines morphological, functional and psychological characteristics of this age group. Considering factors that determine the student’s ability to achieve positive results in the development of strength and muscle mass during power sports classes turned out to be of special importance. This is a type of muscle fiber. The structure of muscle fibers could be of two types: slow and fast contractile. These types of fibers are different relatively independentfunctional units with different morphological, biochemical and contractile properties. Slow fibers have a low rate of contraction, a large number of mitochondria (energy stores), high activity of oxidative processes and high vascularization (capillarization), much glycogen. Fast fibers have fewer capillaries, mitochondria number, high glycolytic capacity, high-speed reduction. Slow muscle fibers are the most suitable to perform long aerobic work. They can force low power for a long time. Fast muscle fibers are adapted to the anaerobic nature of work. They develop high-power short-term efforts. With age, there is an increase in muscle mass and strength. After reaching physiological maturity, the development of muscle mass is even. Boys have a higher percentage of muscles than girls do. The difference in the number forms in the presence of male sex hormone – testosterone, resulting in the fact that men have well-developed muscular system than women. Students with a relatively short length of the muscle can carry the load with a large burden, and the relatively long have greater potential in the development of muscular effort; place the tendon insertion. Muscle strength depends on where the tendon inserts, giving preference to biomechanical moving. The student age is the age of the final stage, followed by a period of relative stabilization of all forms of motor characteristics. Physical education and sports in this period are the most important means of physical development, hardening of the body, a high level of strength, speed, endurance, coordination, good functional status, knowledge bases of sports health, develop sustainable habits to regular exercise, natural, biological basis for development of personal qualities.
EN
Purpose: The objective of this study is to analyze and compare the effectiveness of the total body resistance exercise – ascending, descending and constant load, in increasing strength, power, and stability. Methodology: The quantitative method with quasi-experimental design techniques was used in the study. Results: The results showed that: 1) in the ascending group, leg muscle strength had the highest percentage compared to other variables for 22%, while leg muscle power had the lowest score for 12%; 2) in the descending group, arm muscle strength had the highest score for 36% compared to other variables while the leg muscle power had the lowest score for 16%; 3) in the constant load group, arm muscle strength increased for 15%, leg muscle strength for 14%, arm muscle power for 12%, leg muscle power and stability for 8%, and body balance for 35%. Conclusion: There was significant effectiveness among the ascending, descending, and constant load groups in terms of increasing strength, power, and stability. The descending and constant load group had a greater or more effective impact on increasing arm muscle strength than the ascending group.
PL
Cel: Celem tego badania jest przeanalizowanie i porównanie skuteczności ćwiczenia cał-kowitego oporu ciała – wznoszenia, opadania i stałego obciążenia, w zwiększaniu siły, mocy i stabilności. Metodologia: W badaniu wykorzystano metodę ilościową z quasi-eksperymentalnymi technikami projektowania. Wyniki: Wyniki pokazały, że: 1) w rosnącej grupie siła mięśni nóg miała najwyższy odsetek w porównaniu z innymi zmiennymi dla 22%, podczas gdy siła mięśni nóg miała najniższy wynik dla 12%; 2) w grupie malejącej siła mięśni ramienia miała najwyższy wynik dla 36% niż inne zmienne, a siła mięśni nogi miała najniższy wynik dla 16%; 3) w grupie o stałym obciążeniu siła mięśni ramienia wzrosła o 15%, siła mię-śni nóg o 14%, 12% dla siły mięśni ramion, 8% dla siły i stabilności mięśni nóg lub równowagi ciała o 35%. Wniosek: Między grupami obciążeń wstępujących, opadających i stałych wy-stępowała znacząca skuteczność pod względem zwiększania siły, mocy i stabilności. Grupa opadająca i o stałym obciążeniu miała większy lub bardziej skuteczny wpływ na zwiększenie siły mięśni ramienia niż grupa rosnąca.
EN
Background. It is important to evaluate the specificity of the training and its relationship with the competition variables in Jiu Jitsu athletes. Problem and aim. The objective was to analyze muscle damage, strength, and their correlation under two distinct conditions, a specific training session and a competition simulation session. Methods. The study sample included nine subjects (22.50±2.84 years) that were submitted to the following two interventions: 1. simulation of training and 2. simulation of competition. Results: It can be observed that there were no significant differences in the Counter Movement Jump (CMJ) test; however, 48 h after training, higher values than those in the week of the competition were observed. Regarding Creatine Quinase (CK) levels, there were significant differences after competition in relation to the other time points and the intervention (p=0.004), with a high effect. The Lactate Dehydrogenase (LDH) levels, there were significant differences in post-competition and pre-competition in relation to pre- and post-training (p=0.019), with a high effect. It was observed that the power in the upper limbs (PUL) results showed a median correlation 24 (0.554) and 48h (0.473) after the intervention. The Squat Jump (SJ) test results showed a high correlation (0.716), and the other test results showed a very high correlation (>0.8). All variables presented a very high correlation at both time points of the study. Only the variable LDH level, 48 h later, presented a high correlation. Conclusion. It was concluded that a good correlation exists between training simulation and competition simulation, where the model adopted as training can meet the needs imposed in the competition.
PL
Tło. Ważne jest, aby ocenić specyfikę treningu i jego związek ze zmiennymi zawodów u sportowców Jiu Jitsu. Problem i cel. Celem pracy była analiza uszkodzeń mięśni, siły i ich korelacji w dwóch różnych warunkach, określonej sesji treningowej i sesji symulacji zawodów. Metody. Próba badawcza obejmowała dziewięć osób (22,50±2,84 lat), które zostały poddane dwóm interwencjom: 1. symulacja treningu i 2. symulacja rywalizacji. Wyniki: Można zaobserwować, że nie było istotnych różnic w teście skoku z kontrruchem (CMJ); jednak 48h po treningu zaobserwowano wartości wyższe niż w tygodniu zawodów. Jeśli chodzi o poziomy kinazy kreatynowej (CK), po zawodach wystąpiły istotne różnice w stosunku do innych punktów czasowych i interwencji (p=0,004), z wysokim rezultatem. Stężenia dehydrogenazy mleczanowej (LDH) były istotne po zawodach i przed zawodami w stosunku do stanu przed i po treningu (p=0,019), z wysokim rezultatem. Zaobserwowano, że wyniki mocy w kończynach górnych (PUL) wykazały medianę korelacji 24 (0,554) i 48h (0,473) po zabiegu. Wyniki testu skoku z przysiadu (SJ) wykazały wysoką korelację (0,716), a wyniki pozostałych testów wykazały bardzo wysoką korelację (>0,8). Wszystkie zmienne charakteryzowały się bardzo wysoką korelacją w obu punktach czasowych badania. Jedynie zmienny poziom LDH 48 h później wykazywał wysoką korelację. Wniosek. Stwierdzono, że istnieje dobra korelacja pomiędzy symulacją treningu a symulacją zawodów, gdzie model przyjęty jako trening może zaspokoić potrzeby narzucone podczas zawodów
EN
Methods. Time-motion analysis data of cadet-athletes (age: 15.95 ± 0.68 years-old) were grouped by weight divisions, according to the following criteria: lightweight Lighters (n = 224 combats of -50kg, -55kg and -60kg), middleweight Middlers (n = 76 combats of -66kg, -73kg and -81kg) and heavyweight Heavies (n = 50 combats of -90kg and +90kg) at four state judo championships. Total and sequential time-motion analyses were observed, according to each combat phase (i.e. standing combat, approach, gripping, attack, groundwork combat, and pause phases) and compared by weight divisions, p ≤ 0.05. Results. The main results indicated significant differences between combat time, with lightweight Lighters (234.4s ± 122.3s) > middleweight Middlers (191.6s ± 118.2s) and heavyweight competitors Heavies (176.8s ± 131s), standing combat time, with Lighters (125.4s ± 67.4s) > Middlers (99.6s ± 70.8s) and Heavies (91.1s ± 63.6s), approach phase, with Lighters (41.5s ± 26s) > Middlers (27.2s ± 18.2s) and gripping phase, with Lighters (75.5s ± 49.2s) >Heavies (51.3s ± 36.9s). Conclusions. Our results suggest that individual training programs should be adjusted for cadets according to their weight divisions with consideration given to the temporal structure of the competitive environment.
PL
Tło. Schematyczna analiza ruchu w czasie dla zawodników kadetów jest potencjalnym mediatorem sukcesu i może pomóc w rozwoju treningu judo. Problem i cel. W niniejszym badaniu porównano fazy walk judo u kadetów-sportowców płci męskiej w różnych kategoriach wagowych. Metody. Dane analizy ruchu w czasie kadetów-sportowców (wiek: 15,95 ± 0,68 lat) pogrupowano według kategorii wagowych, według następujących kryteriów: waga lekka (n = 224 walki -50 kg, -55 kg i -60 kg), średnia ( n = 76 walk z wagami -66kg, -73kg i -81kg) oraz ciężka (n = 50 walk z wagami -90kg i +90kg) w czasie czterech stanowych mistrzostw w judo. Obserwowano całkowitą i sekwencyjną analizę ruchu w czasie, zgodnie z każdą fazą walki (tj. walka w pozycji stojącej, zbliżanie się, chwytanie, atak, walka w parterze i faza pauzy) i porównywano je w podziale wagowym, p ≤ 0,05. Wyniki. Główne wyniki wskazują na istotne różnice między czasem walki zawodników wagi lekkiej (234,4s ± 122,3s) > średniej (191,6s ± 118,2s) i ciężkiej (176,8s ± 131s), czasem walki stojącej u zawodników wagi lekkiej (125,4s ±67,4s) > średniej (99,6 s ± 70,8 s) i ciężkiej (91,1 s ± 63,6 s), fazą zbliżania, u zawodników wagi lekkiej (41,5 s ± 26 s) > średniej (27,2 s ± 18,2 s) i faza chwytania u zawodników wagi lekkiej (75,5 s ± 49,2 s) >ciężkiej (51,3s ± 36,9s). Wnioski. Wyniki autorów sugerują, że indywidualne programy treningowe powinny być dostosowywane dla kadetów zgodnie z ich podziałami wagowymi, z uwzględnieniem czasowej struktury środowiska rywalizacji.
EN
This article argues that, strictly speaking, from its inception with the ancient Greeks and for all time, philosophy and science are identical and consist in an essential relationship between a specific type of understanding of the human person as possessed of an intellectual soul capable of being habituated and a psychologically-independent composite whole, or organization. It maintains, further, that absence of either one of the extremes of this essential relationship cannot be philosophy/science and, if mistaken for such and applied to the workings of cultural institutions, will generate anarchy within human culture and make leadership excellence impossible to achieve. Finally, it argues that only a return to this “common sense” understanding of philosophy can generate the leadership excellence that can save the West from its current state of cultural and civilizational anarchy.
EN
Since most pressing today on a global scale is to be able to unite religion, philosophy, and science into parts of a coherent civilizational whole, and since the ability to unite a multitude into parts of a coherent whole essentially requires understanding the natures of the things and the way they can or cannot be essentially related, this paper chiefly considers precisely why the modern world has been unable to effect this union. In so doing, it argues that the chief cause of this inability to unite these cultural natures has been because the contemporary world, and the West especially, has lost its understanding of philosophy and science and has intentionally divorced from essential connection to wisdom. Finally, it proposes a common sense way properly to understand these natures, reunite them to wisdom, and revive Western and global civilization.
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