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Vytrvalostní schopnosti ve veslování / Endurace abilities in rowingChovaňáková, Petra January 2018 (has links)
This bachelor thesis deals with the basic criminal activities of the police department by examining the crime scene in the conditions of the basic unit of the Police of the Czech Republic. The first part of the thesis deals with the examination in general, its types and principles. The second part concerns the division of the crime scene investigation by subject matter between the basic police unit and the Criminal Police and Investigation Service. The third part deals with the actual investigation of the crime scene, namely its concept, purpose, procedures and stage of investigation. The fourth part describes the crime scene documentation. The fifth part focuses on the conditions and problems in examining the crime scene performed by the basic body. Key words rowing, rowing ergometer, endurance, methods of endurance testing, Cooper test, Multi stage shuttle run
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Komparace výsledků diagnostických metod anaerobních prahů ve veslování. / The Comparison of Result of Diagnostic Methods of Anaerobic Thresholds in Rowing.Rédr, Andre January 2021 (has links)
Title: The Comparison of Results of Diagnostic Methods of Anaerobic Thresholds in Rowing Aims: The aim of the work is to compare the most used diagnostic methods of anaerobic thresholds on a rowing machine. Methods: This diploma thesis is a quantitative empirical research. To compare diagnostic data was used the Concept 2 rowing machine. The rowing machine was also used as an instrument for evaluation of five types of test methods for the anaerobic threshold diagnostics and the sixth control test, respectively. Exanimated functional values were determined using a HR monitor Garmin Fenix 6 and a Lactate scout lactometer. Exponential regressions in MS Excel were used to evaluate lactate curve tests. The homogeneous sample group consisted of 10 club rowers (n = 10). Results: We used basic statistical methods for data analysis, paired t-test, and correlation analysis (Pearson's correlation coefficient). Comparing the functional values of the monitored diagnostics, we found that the descending time protocol of the lactate curve was the most accurate methods of anaerobic threshold diagnostics for the control twenty-minute test. The compared functional values of other tests against the control test showed a statistically significant variation at the level of significance p ≤ 0.05. Other used methods of...
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Centrum volnočasových aktivit Brno-Brněnská přehrada / Leisure time centre Brno - Brno reservoirKuča, Jiří January 2012 (has links)
CENTRE EXPANDS POSSIBILITIES OF SPORT AND RELAXATINO LIFE ON THE BRNO RESERVOIR. MAINLY IS FOR THE EXTENSION OF THE WATER SPORTS - ROWING AND DIVING CLUB. BOTH CLUBS ARE DESIGNED MAINLY TO UNIVERSITY STUDENTS IN BRNO, FOR WHICH IS OFFERED THE POSSIBILITY OF ACCOMMODATION. ALSO ARE IN BUILDING LEASEABLE AREAS FOR taking LECTURES, WORKSHOPS, RECEPTIONS ... CAFETERIA AND RESTAURANT ARE OBVIOUS. "WIND FACADE" - MOBILE ARCHITECTURAL ELEMENT - SLICES OF BRASS SHEETS ARE MOVING IN THE WIND AND REVIVES FACADE. WAREHOUSE FOR BOAT BEHIND FACADE IS PERMMANENT VENTILATED BUT INACESSIBLE FOR PUBLIC.
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Znalost veslování u studentů Fakulty tělesné výchovy a sportu Univerzity Karlovy a Fakulty tělesné kultury Univerzity Palackého v Olomouci / Knowledge of rowing between students of Faculty of Physical Education and Sport, Charles University and Faculty of Physical Culture Palacký University OlomoucRichterová, Nikol January 2015 (has links)
Title: Knowledge of rowing between students of Faculty of Physical Education and Sport - Charles University and Faculty of Physical Culture - Palacký University Olomouc Objectives: The main objective of this work is research on the extent of knowledge about rowing of the students of two sports-oriented university faculties. Another aim is to compare general knowledge of students and comparison of the two selected faculties Methods: To determine the necessary information was used quantitative research, using on-line interviews. Before the interview was modified a questionnaire on the given subject, which was planned for 100 respondents. The research was conducted using an electronic questioning when the questionnaire was completed 119 respondents from Faculty of Physical Education and Sport - Charles University and The Faculty of Physical Culture - Palacký University Olomouc Results: Based on the research results, it is possible to say that knowledge and awareness about the rowing is among respondents rather average. Approximately 75 % of the respondents knew the correct answer in three questions. But to another question stated the right answer only 12 % of respondents. After mutual comparison of the two faculties, it is possible to say that knowledge of rowing are comparable. Keywords: rowing,...
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Simulation numérique et modélisation d’écoulements tridimensionnels instationnaires à surface libre. Application au système bateau-avirons-rameur / Numerical simulation and modelling of tridimensional freesurface flows. Application to the boat-oars-rower systemRobert, Yoann 29 September 2017 (has links)
La thèse s'intéresse aux deux écoulements présents en aviron, autour du bateau et de la palette, et aux interactions avec le système bateau-avirons-rameur. Le premier est inhabituel en hydrodynamique, à cause du cavalement important et des mouvements secondaires. La complexité du second provient de l'instationnarité et de la déformation de la surface libre. L'objectif consiste à mettre en oeuvre des méthodes numériques performantes et précises puis à les valider pour, à plus long terme, les réutiliser à des fins d'analyse et d’optimisation de la performance en aviron.Ces simulations instationnaires à surface libre sont coûteuses en ressources pour les codes RANS. Un algorithme de sub-cycling a été développé et validé sur plusieurs cas test, diminuant les temps CPU d'un facteur 3 à 4, sans perte de précision. Il est compatible avec la déformation et le raffinement automatique de maillage. Deux bases de données expérimentales sont exploitées pour chaque écoulement afin de valider le cadre de simulation. Pour celui autour de la palette, une campagne in situ et une autre en laboratoire sont utilisées. Dans les deux cas, les profils d'efforts sont bien capturés, compte tenu des incertitudes cumulées liées à la mesure indirecte de la cinématique de la palette par rapport à l'eau. Pour le skiff en configuration instationnaire, les efforts fluctuants sont bien capturés, en amplitude et en phase, pour des fréquences typiques. Des écarts inattendus (de l'ordre de 10%) sont constatés sur la valeur moyenne et restent pour le moment sans réponse probante. La structure d'une co-simulation entre les résolutions des écoulements et celle de la dynamique du système multicorps est initiée. / The thesis focuses on the two flows occurring in rowing,around the boat and the blade, and on interactions with theboat-oars-rower system. The first flow is unusual in hydrodynamics because of the large surge and secondary motions. The complexity of the second one comes from the unsteadiness and the free surface deformation. The goal is to set up efficient and accurate numerical methods to reproduce these flows and then to validate them for the purpose of analysis and optimisation of the performance in rowing.Those unsteady computations with free surface are cost lyin resources for RANS codes. A sub-cycling algorithm was developed and validated on several test cases, allowing to decrease the CPU time by a factor of 3 to 4, without loss of accuracy. It is compatible with mesh deformation and automatic grid refinement. Two experimental databases are exploited for each flow in order to validate the frame of simulation. For the flow around the blade, an in-situ campaign and a more controlled one conducted in laboratory, are used. In both cases, the profiles of the efforts are well captured, considering the cumulative uncertainties linked to the indirect measurement of the blade kinematics relative to the water. For the skiff in unsteady state, the fluctuating forces are well captured, in terms of amplitudes and phases, for typical frequencies. Unexpected errors (around10%) are observed for the mean value and remain unexplained for now. The structure of a co-simulation between the resolutions of the flows and the resolution of the dynamics of the multibody system is initiated.
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Problèmes d’optimisation à la surface de l’eau : Des coques de bateaux à la propulsion par rame / Optimisation problems at the air/water interface : From ship hulls to rowing propulsionBoucher, Jean-Philippe 11 December 2018 (has links)
Plusieurs problèmes d’optimisation — dans l’eau ou à l’interface avec l’air — sont abordés, allant de l’optimisation de la forme des coques de bateaux à celle de la propulsion en aviron et dans la nage avec palmes. Des approches théorique, expérimentale et numérique sont combinées. Nous développons d’abord une approche théorique minimale afin de déterminer, à volume immergé et puissance donnés, les rapports d’aspect optimaux des coques de bateau, qui sont discutés et comparés aux rapports d’aspect de bateaux réels. L’effet de l’asymétrie avant-arrière des coques est ensuite discuté. Dans une deuxième partie, nous étudions la propulsion en aviron et dans la nage avec palme. Dans le cas de l’aviron, nous réexaminons la question de la synchronisation des rameurs sur le bateau à l’aide d’un modèle réduit de bateau robotisé et cherchons quelle est la synchronisation qui permet à l’équipage d’aller le plus vite. Enfin, nous analysons l’effet de la géométrie des palmes pour trouver les stratégies de nage optimales. / We consider a few optimisation problems — in water and at its surface — ranging from drag minimisation on ship hulls to propulsion efficiency in rowing and swimming with fins. We use theoretical, experimental and numerical methods. In a first part, we focus on the question of optimal hull shapes. We develop a minimal theoretical approach to determine, at given load and propulsive power, the optimal aspect ratios of ship hulls, which are discussed and confronted to empirical data. Then, the effect of the fore-aft hull asymmetry is addressed. In a second part, we study the question of propulsion in rowing and swimming with fins. In particular, the long-standing question of whether rowers should be synchronised or not is brought up to date with a scaled rowing robot. Finally, we analyse the optimal shape of fins in order to find optimal swimming strategies.
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Caracterização de demanda fisiológica e contribuição dos sistemas energéticos em protocolos de treinamento com remadores / Characterization of physiological demand and contribution of energy systems in training protocols with rowersVaz, Marcelo dos Santos 20 July 2016 (has links)
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Previous issue date: 2016-07-20 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / Impacto fisiológico de sessões de treinamento com remoergômetro. Vinte sujeitos (7 remadores amadores e 13 universitários) remaram três sessões de treino equiparadas pela duração total (40 min): uma ontínua (EC = 60% VO2max), uma intermitente com esforços curtos (RST = 9 x 30” [150% VO2max] / 4’ [40% VO2max]) e uma intermitente com esforços longos (IL = 8 x 2’ [80% VO2max] / 3’ [40% VO2max]. oletaram-se VO2 antes, durante e após o esforço, concentração de lactato [Lac], creatina quinase ([CK]), frequência cardíaca (FC) e parâmetros da variabilidade da frequência cardíaca (VFC): LH/HF e RMSSD pré-, pós- e pós 24h do treino. Foi encontrada diferença entre grupos, com maior contribuição aeróbia no EC em comparação às sessões intermitentes (p<0,001). Para [Lac], o pós-treino do IL foi maior que o do EC (p=0,004). A VFC foi diferente entre momentos, com maior valor nos pós-treinos, em relação aos pré- e pós 24h (p<0,001). Já a [CK] seguiu comportamento linear com aumento significativa no pós-treino e no
pós 24h (p<0,001). Conclui-se que as sessões de treinamento resultaram em contribuição similar dos sistemas energéticos, com predominância aeróbia expressiva e ligeiramente mais pronunciada no EC, em comparação a RST e IL. Portanto, o emprego de treinos contínuos e intermitentes é viável ao se considerar 24 horas de intervalo entre sessões, tempo suficiente para a recuperação dos remadores, independente do tempo de prática dos sujeitos e do tipo de estímulo aplicado. / The objective of the study was to measure the contribution of energy systems and characterize Physiological impact of training sessions with ergometer. Twenty subjects (7 rowers amateurs and 13 university students) had three training sessions matched for the total duration (40 min): one continuous (EC = 60% VO2max), one intermittent with short stresses (RST = 9 x 30% [150% VO2max] / 4 '[40% VO2max]) and an intermittent with long efforts (IL = 8 x 2' [80% VO2max] / 3 '[40% VO2max]. VO2 was collected before, during and after exercise, concentration of lactate [Lac], creatine kinase ([CK]), heart rate (HR) and parameters of variability of heart rate (HRV): LH / HF and RMSSD pre-, post- and post-training 24 hours. It found difference between groups, with higher aerobic contribution in the CS compared to the
(p <0.001). For [Lac], posttraining of IL was greater than that of EC (p = 0.004). The VFC
was different between moments, with a higher value in the post-training, in relation to pre and post 24h
(p <0.001). On the other hand, [CK] followed a linear behavior with a significant increase in post- after 24 h (p <0.001). It is concluded that the training sessions resulted in a energy systems, with expressive aerobic predominance and EC, compared to RST and IL. Therefore, the use of continuous and intermittent is feasible when considering 24 hours interval between sessions, sufficient time for the recovery of rowers, regardless of the subjects' practice time and the type of stimulus applied.
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Bone mineral density and rowing exercise in older womenMcNamara, Adrienne J. 15 April 2005 (has links)
Studies in young women show that rowing exercise is osteogenic at the spine.
However, little is known regarding rowing exercise and spine bone mineral density
in older women. The aim of this study was to examine differences in spine bone
mineral density (BMD) and back strength between premenopausal and
postmenopausal competitive female masters rowers (n=28, 45.5 ± 4.7 yrs, n=28,
56.1 ± 5.7 years, respectively) and age-matched non-rowers (n=30, 43.3 ± 4.2 yrs;
n=26, 56.8 ± 4.8 years). Competitive rowers were recruited from nine rowing
clubs in the local area and compared to controls recruited from the same region
who were normally active but not participating in rowing activity. Participating
rowers had been engaged in competitive rowing for a minimum of one year. The
average years spent rowing for the premenopausal and postmenopausal groups was
7.5 ± 6.6 yrs and 5.9 ± 6.9 yrs, respectively. BMD (g/cm²) of the third lumbar
vertebrae (L3) was measured by dual-energy x-ray absorptiometry (DXA) in both
the anterior-posterior and lateral views. Back strength was assessed using a
standing cable tensiometer. Subjects also completed questionnaires to assess diet,
physical activity, medical history and rowing history. Differences in BMD and
back strength between groups were determined by analysis of covariance,
controlling for lean mass. Compared to controls, postmenopausal rowers had
3.2% higher BMD at the anterior-posterior spine (p=.02) and 4.4% higher lateral
spine BMD (p=.04). Furthermore, isometric back strength was 22.6% greater in
these rowers than controls (p=.01). In contrast, controls had higher lateral BMD
than rowers, with no differences in AP spine BMD or back strength between the
premenopausal rowers and controls. Back strength was a significant predictor of
AP spine BMD in premenopasual rowers and controls (R²=0.137, p=0.004) and
of lateral spine BMD in postmenopausal rowers only (R²=0.153, p=0.04). There
were no differences in calcium intake, age, menopausal status, weight, or lean
mass between rowers and controls in either the premenopausal or postmenopausal
samples. Since both increased BMD and back strength are associated with
reductions in vertebral fracture risk, our results suggest that rowing exercise may
be an important strategy to promote bone health and reduce vertebral fracture risk
in postmenopausal women. However, the forces applied in rowing may not be
great enough to alter bone mass before the onset of menopause. Therefore more
research is needed examining rowing exercise in these older populations. / Graduation date: 2005
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Simulation of Human Movements through OptimizationPettersson, Robert January 2012 (has links)
Optimization has been used to simulate human neural control and resulting movement patterns. The short term aim was to develop the methodology required for solving the movement optimization problem often arising when modelling human movements. A long term aim is the contribution to increased knowledge about various human movements, wherein postures is one specific case. Simulation tools can give valuable information to improve orthopeadic treatments and technique for training and performance in sports. In one study a static 3D model with 30 muscle groups was used to analyse postures. The activation levels of these muscles are minimized in order to represent the individual’s choice of posture. Subject specific data in terms of anthropometry, strength and orthopedic aids serve as input. The specific aim of this part was to study effects from orthopedic treatment and altered abilities of the subject. Initial validation shows qualitative agreement of posture strategies but further details about passive stiffness and anthropometry are needed, especially to predict pelvis orientation. Four studies dealt with movement optimization. The main methodological advance was to introduce contact constraints to the movement optimization. A freetime multiple phase formulation was derived to be able to analyse movements where different constraints and degrees of freedom are present in subsequent phases of the movements. The athletic long jump, a two foot high jump, a backward somersault and rowing were used as applications with their different need of formulation. Maximum performance as well as least effort cost functions have been explored. Even though it has been a secondary aim in this work the results show reasonable agreement to expected movements in reality. Case specific subject properties and inclusion of muscle dynamics are required to draw conclusions about improvements in the sport activity, respectively. / <p>QC 20120910</p>
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The impact of a single high volume exercise stimulus incorporated into a taper on 2000m rowing ergometer performanceBrotherhood, James R. 24 June 2008 (has links)
The purpose of this experiment was to examine the efficacy of implementing a high intensity, high volume workout into the late stages of a taper, to identify if there was a performance enhancing effect beyond that of an intensity maintained, reduced-volume taper. Eleven male collegiate rowers (age 21.0 ± 1.9 years, VO2max 60.9 ± 5.8 ml/kg/min) completed 23 days of progressively overloaded training, followed by 5 days of reduced training volume. Participants were matched and randomly assigned to either a high intensity-low volume or high intensity-high volume treatment workout approximately 48 hours prior to an indoor rowing competition. Other than the treatment workout, all prescribed training was identical. Both tapers resulted in significant improvements in 2000 m ergometer performance; however there was no statistically significant difference between these groups (Low volume: 5.4 ± 2.7 seconds High volume 4.0 ± 3.3 seconds) Post race blood lactate tended to be higher following taper, however it did not reach significance (p = 0.06) and there was no difference between groups. There were no differences throughout training and taper for hemoglobin (Hb), hematocrit (Hct.), and plasma volume in either group. Mean corpuscular volume (MCV), increased with training and increased further with taper in both groups; conversely, red cell distribution width (RDW) decreased with training and decreased further with taper in both groups. Jump height did not change from pre-taper to competition; however, there was a decrease in dip depth and a corresponding increase in peak acceleration and rate of force development in both groups. There was also a reduction in fatigue at competition compared to week 2 as measured by the Profile of Mood States questionnaire. These physiological and psychological adaptations may in part explain the observed combined 1.8% improvement in 2000m ergometer performance compared to pre-taper test times, however we were unable to discern any differences in any measured parameters between the higher volume and low volume treatment groups. The changes in hematological parameters may be indicative of decreases in erythrocyte age; and the adaptations to acceleration / rate of force development suggest potential improvements under the broad theme of movement economy. This study found that employing a 5 day reduced volume taper improved performance, however, implementing a higher volume, high intensity stimulus 48-52 hours prior to competition resulted in no added benefit and a potentially meaningful (1.4 seconds) yet not significant reduction in performance response to taper.
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