Made available in DSpace on 2014-06-11T19:31:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-10-04Bitstream added on 2014-06-13T19:01:33Z : No. of bitstreams: 1 pereira_mc_dr_jabo.pdf: 921478 bytes, checksum: 698086986ba2ba3534e64792606415a9 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Avaliou-se por meio de variáveis preditivas de desempenho (lactato - Lact; frequência cardíaca - FC e glicose - Glic) e alterações na bioquímica sérica (BQS), hematimetria (Hemat) e leucometria (Leucom), a influência da administração do dipropionato de imidocarb (imizol® - IMZ) em equinos Puro Sangue Árabe portadores de Teileriose assintomática diagnosticados pelo método nested-PCR. Na primeira etapa, os equinos foram divididos em dois grupos (Theileria positivo TP, n=6 e Theileria negativo TN, n=5), e as variáveis aferidas durante dois testes progressivos de velocidade em esteira no interstício de dez dias. Nesse intervalo, administrou-se IMZ (2,4mg/Kg, IM, uma vez ao dia durante dois dias) iniciando 24hs após o 1º teste. Tukey (p 0,05). Para o limiar de lactato, observou-se diferença significativa apenas entre os grupos (TP e TN) durante o 1º teste. O limiar glicêmico e as FC’s (V150 e V180) mantiveram-se sem alterações significantes. Na segunda etapa, um grupo controle (CT, n=11), e posteriormente, após exame nested-PCR, dois grupos tratados (Theileria positivo TP, n=6 e Theileria negativo TN, n=5), foram acompanhados durante 40 dias por meio de BQS, Hemat e Leucom. Os grupos tratados receberam duas doses de IMZ (2,4mg/Kg, IM, uma vez ao dia durante dois dias) dias 2 e 3 e outras duas doses dias 31 e 32. Nos dias 1 e 10, realizou-se teste incremental. As variáveis Hemat mensuradas nos dias 1, 10 e 40 não apresentaram diferença estatística relevante (P 0,05) em relação ao controle. Creatina quinase (CK) e aspartato aminotransferase (AST) diferiram em relação ao controle, principalmente após as doses de IMZ. As mensurações de gama glutamil transferase (GGT) e uréia (UR) diferiram em relação ao controle após a 1ª e 2ª doses. A fosfatase (FA) (TP, TN) apresentou aumento em relação ao grupo... / The influence of imidocarb dipropionate (imizol®) in Arabian horses with subclinical Theileriosis diagnosed by nested-PCR method was evaluated using predictive performance variables (lactate - Lact; heart rate - HR and blood glucose - BG), serum biochemistry, red and white blood cell count. In the first phase, horses were splited into two groups after nested-PCR measurement (T. equi positive TP, n=6, and T. equi negative TN, n=5). The variables were measured during two treadmill tests with ten days of interval between the first and second test. 2.4 mg/kg IM one injection every 24 hours over two days was administered starting 24 hours after the 1st test, and the results compared by Tukey test (p 0.05). Regarding the lactate threshold, there was only statistical difference during the 1st day of comparison. BG and HR(V150 and V180) remained without significant changes during the two speed tests. In the second phase, a control group (CT, n = 11), and later, based on nested-PCR test, two treated groups (Theileria positive TP, n = 6 and Theileria negative TN, n = 5), were followed for 40 days through biochemical analysis of muscle, kidney, liver and hematology (white and red blood cell count). The treated groups received two doses of IMZ (2.4 mg/kg IM one injection every 24 hours over two days) days 2 and 3 and two more doses after 30 days (day 31 and 32). In the days 1 and 10, all animals underwent a progressive speed test. The hematological and leukocyte variables showed no statistical difference (P>0.05) compared to control. Measurements of creatine kinase (CK) and aspartate aminotransferase (AST) activity showed significant changes compared to control, especially after the dosages of IMZ. Measurements of gamaglutamil transferase (GGT) activity and (UR) showed significant difference compared to control after... (Complete abstract click electronic access below)

Made available in DSpace on 2014-06-11T19:23:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-02-27Bitstream added on 2014-06-13T20:28:09Z : No. of bitstreams: 1 pereira_mc_me_jabo.pdf: 982612 bytes, checksum: 89389f905c27e791696f724d2fb90dca (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / As lesões musculoesqueléticas são as principais responsáveis pelo abandono da carreira competitiva e queda de rendimento dos eqüinos de alto desempenho. Dessa forma, torna-se mister compreender a prevalência das lesões associando-a ao grau de comprometimento atlético na tentativa de prevenir e minimizar suas consequências. Com esse estudo, através das análises dos registros do Departamento de Radiologia do Hospital Octavio Dupont (JCB/RJ) e da base de dados do Stud Book Brasileiro objetivou-se estabelecer, inicialmente, as correspondências entre as principais lesões diagnosticadas, gênero, faixa etária, membro lesionado, localização da lesão (1ª etapa). Subsequentemente avaliou-se o grau de comprometimento de desempenho competitivo de tais lesões através da categorização do desempenho (2ª etapa). Na primeira etapa, observouse prevalência de lesões em machos da faixa etária de três a cinco anos. Os membros torácicos, principalmente o direito, foram os mais lesionados. As lesões situadas no terço médio dos membros foram frequentes, assim como as fraturas. As lesões altas e as sediadas no membro torácico direito corresponderam em sua maioria com fêmeas. As lesões no membro torácico esquerdo e as periostites foram associadas aos machos com idade superior a cinco anos. Na segunda etapa da análise, encontrou-se correspondência entre o período de inatividade curto, após lesões, com o coeficiente de comprometimento alto com reflexo negativo no desempenho. Conclui-se que as lesões nos membros torácicos independem do direcionamento da pista. O período de inatividade foi determinante para queda de desempenho. As variáveis categóricas de desempenho foram determinantes na avaliação do comportamento atlético. / Musculoskeletal injuries are responsible for the shortness of career and competitive decline of high performance horses. Thus, it is mister understand the prevalence of injuries associated with the degree of commitment to keep on mind to prevent and minimize its consequences. This study, by analyzing the records of the Department of Radiology, Hospital Octavio Dupont (JCB / RJ) and the database of the Brazilian Stud Book was aimed to establish, initially, the connections between the main injury diagnosis, gender, age, member injured, location of lesion (1st stage). Subsequently, it was evaluated the degree of commitment of the competitive performance of such injuries through the categorization (2nd stage). In the first stage, there was prevalence of lesions in the male, aged of three to five years. Forelimbs, mainly the right, were the most frequently injured. Lesions located in the middle third of the limbs were frequently associated with fractures. Lesions located in the proximal aspect of forelimbs had high correspondence with females. Lesions in the left forelimbs and periostitis were associated with males aged over five years. In the second stage of analysis, there was found correspondence between the shortness of inactivity, after injury, with high of involvement with negative on the performance. It is concluded that the forelimb lesions were independent of the race track directions. The period of inactivity was decisive to explain the loss of performance. The categorization of performance variable was determinant to measure the horse athletic behavior.

Orientador: Antonio de Queiroz Neto / Banca: Guilherme de Camargo Ferraz / Banca: Ana Paula Delgado da Costa / Banca: Flora Helena de Freitas D'Angelis / Banca: Antônio Raphael Teixeira Neto / Resumo: Avaliou-se por meio de variáveis preditivas de desempenho (lactato - Lact; frequência cardíaca - FC e glicose - Glic) e alterações na bioquímica sérica (BQS), hematimetria (Hemat) e leucometria (Leucom), a influência da administração do dipropionato de imidocarb (imizol® - IMZ) em equinos Puro Sangue Árabe portadores de Teileriose assintomática diagnosticados pelo método nested-PCR. Na primeira etapa, os equinos foram divididos em dois grupos (Theileria positivo TP, n=6 e Theileria negativo TN, n=5), e as variáveis aferidas durante dois testes progressivos de velocidade em esteira no interstício de dez dias. Nesse intervalo, administrou-se IMZ (2,4mg/Kg, IM, uma vez ao dia durante dois dias) iniciando 24hs após o 1º teste. Tukey (p 0,05). Para o limiar de lactato, observou-se diferença significativa apenas entre os grupos (TP e TN) durante o 1º teste. O limiar glicêmico e as FC's (V150 e V180) mantiveram-se sem alterações significantes. Na segunda etapa, um grupo controle (CT, n=11), e posteriormente, após exame nested-PCR, dois grupos tratados (Theileria positivo TP, n=6 e Theileria negativo TN, n=5), foram acompanhados durante 40 dias por meio de BQS, Hemat e Leucom. Os grupos tratados receberam duas doses de IMZ (2,4mg/Kg, IM, uma vez ao dia durante dois dias) dias 2 e 3 e outras duas doses dias 31 e 32. Nos dias 1 e 10, realizou-se teste incremental. As variáveis Hemat mensuradas nos dias 1, 10 e 40 não apresentaram diferença estatística relevante (P 0,05) em relação ao controle. Creatina quinase (CK) e aspartato aminotransferase (AST) diferiram em relação ao controle, principalmente após as doses de IMZ. As mensurações de gama glutamil transferase (GGT) e uréia (UR) diferiram em relação ao controle após a 1ª e 2ª doses. A fosfatase (FA) (TP, TN) apresentou aumento em relação ao grupo... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The influence of imidocarb dipropionate (imizol®) in Arabian horses with subclinical Theileriosis diagnosed by nested-PCR method was evaluated using predictive performance variables (lactate - Lact; heart rate - HR and blood glucose - BG), serum biochemistry, red and white blood cell count. In the first phase, horses were splited into two groups after nested-PCR measurement (T. equi positive TP, n=6, and T. equi negative TN, n=5). The variables were measured during two treadmill tests with ten days of interval between the first and second test. 2.4 mg/kg IM one injection every 24 hours over two days was administered starting 24 hours after the 1st test, and the results compared by Tukey test (p 0.05). Regarding the lactate threshold, there was only statistical difference during the 1st day of comparison. BG and HR(V150 and V180) remained without significant changes during the two speed tests. In the second phase, a control group (CT, n = 11), and later, based on nested-PCR test, two treated groups (Theileria positive TP, n = 6 and Theileria negative TN, n = 5), were followed for 40 days through biochemical analysis of muscle, kidney, liver and hematology (white and red blood cell count). The treated groups received two doses of IMZ (2.4 mg/kg IM one injection every 24 hours over two days) days 2 and 3 and two more doses after 30 days (day 31 and 32). In the days 1 and 10, all animals underwent a progressive speed test. The hematological and leukocyte variables showed no statistical difference (P>0.05) compared to control. Measurements of creatine kinase (CK) and aspartate aminotransferase (AST) activity showed significant changes compared to control, especially after the dosages of IMZ. Measurements of gamaglutamil transferase (GGT) activity and (UR) showed significant difference compared to control after... (Complete abstract click electronic access below) / Doutor

Orientador: Carlos Marcelo Pastre / Resumo: A imersão em água fria (IAF) é uma técnica comumente utilizada no âmbito esportivo no processo de recuperação pós-exercício. Na natação, este é um recurso utilizado principalmente entre provas, visando obter seus benefícios a curto prazo. Entretanto, os efeitos de sua aplicação de forma sistematizada e ajustada às demandas de treinamento, permanecem incertos, especialmente quando comparados à condição placebo. Objetivos: Avaliar os efeitos da imersão em água fria e sua condição placebo quando aplicadas de forma sistematizada e adequada a dinâmica de treinamento sobre parâmetros perceptivos, funcionais e de desempenho em atletas de natação. Métodos: Ensaio clínico randomizado do tipo cruzado, envolvendo 20 atletas de natação de ambos os sexos com idade entre 12 e 20 anos. O estudo foi realizado em seis semanas de treinamento do mesmo mesociclo. Durante os cinco dias da semana os participantes realizaram as sessões de treinamento, compostas por um treino físico em solo seguido do treino nadado. Aos sábados (após as cinco sessões) os atletas foram submetidos à uma sessão de testes. As intervenções recuperativas [imersão em água fria (14±1°C), imersão em água termo neutra (27±1°C) como condição placebo, e condição controle] foram aplicadas em três semanas (semanas 2, 4 e 6) às segundas, terças e sextas-feiras entre o treino físico e o treino nadado durante 12 minutos, enquanto as semanas 1, 3 e 5 foram consideradas basais. Os atletas foram randomizados de acordo com sexo e nível ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Cold-water immersion (CWI) is a technique commonly used in sports in the post-exercise recovery process. In swimming, this is a tool used mainly between tests, aiming to obtain its short-term benefits. However, the effects of its systematic application and adjusted to the training demands remain uncertain, especially when compared to the placebo condition. Objectives: To evaluate the effects of cold-water immersion and its placebo condition when properly and systematically applied to training dynamics on perceptive, functional and performance parameters in swimming athletes. Methods: Randomized crossover clinical trial involving 20 male and female swimmers aged 12 to 20 years. The study was conducted in six weeks of training of the same mesocycle. During the five days of the week, the participants performed the training sessions, consisting of a physical training on the ground followed by the swim training. On Saturdays (after five sessions), the athletes were submitted to a testing session. The recovery interventions [cold water immersion (14 ± 1 ° C), term neutral water immersion (27 ± 1 ° C) as a placebo condition, and control condition] were applied at three weeks (weeks 2, 4 and 6) on Mondays, Tuesdays and Fridays between physical training and swimming training for 12 minutes, while weeks 1, 3 and 5 were considered baseline. Athletes were randomized according to gender and competitive level into distinct sequences (S1; S2; S3) in which they differed only by the order of ... (Complete abstract click electronic access below) / Mestre

Aim. The purpose of this study was to evaluate the relationship between weightlifting performance (snatch, clean and jerk, and total) and variables obtained from the isometric mid-thigh pull (IMTP). Methods. Twelve weightlifters, ranging from novice to advanced, performed the IMTP 10 days after a competition. Correlations were used to evaluate relationships between variables of the IMTP and absolute and scaled competition results. Results. Unsealed competition results correlated strongly with IRFD (0-200ms: r=0.567-0.645, 0-250ms: r=0.722-0.781) while results correlated weakly with Peak IRFD (5ms window, r=0.360-0.426). Absolute peak force values correlated very strongly with absolute values for the competition performance (r=0.830-0.838). Force at 100ms, 150ms, 200ms and 250ms also correlated strongly with competition results (r=0.643-0.647, r=0.605-0.636, r=0.714-0.732, r=0.801-0.804). Similar findings were noted for allometrically scaled values. Conclusion. Measures of average IRFD probably represent a more relevant variable to dynamic performance than does Peak IRFD (5ms). Maximum isometric strength also is likely to have a strong role in weightlifting performance.

Aim. The purpose of this study was to evaluate the relationship between weightlifting performance (snatch, clean and jerk, and total) and variables obtained from the isometric mid-thigh pull (IMTP). Methods. Twelve weightlifters, ranging from novice to advanced, performed the IMTP 10 days after a competition. Correlations were used to evaluate relationships between variables of the IMTP and absolute and scaled competition results. Results. Unsealed competition results correlated strongly with IRFD (0-200ms: r=0.567-0.645, 0-250ms: r=0.722-0.781) while results correlated weakly with Peak IRFD (5ms window, r=0.360-0.426). Absolute peak force values correlated very strongly with absolute values for the competition performance (r=0.830-0.838). Force at 100ms, 150ms, 200ms and 250ms also correlated strongly with competition results (r=0.643-0.647, r=0.605-0.636, r=0.714-0.732, r=0.801-0.804). Similar findings were noted for allometrically scaled values. Conclusion. Measures of average IRFD probably represent a more relevant variable to dynamic performance than does Peak IRFD (5ms). Maximum isometric strength also is likely to have a strong role in weightlifting performance.

This study examined the relationship of life stress, competitive trait anxiety and competitive state anxiety, with injury occurrence in NCAA Division I athletic teams. Life stress was measured by the Life Events Survey for Collegiate Athletes. The Competitive State Anxiety Test and Marten’s Sport Competition Trait Anxiety Test calculated competitive anxiety. After calculating means and standard deviations for each measure, a multiple regression was run. A two-way ANOVA was used to determine differences between sport and gender. The results of the study indicated there was no effect of gender for trait anxiety, cognitive and somatic state anxiety or gender. A significant main effect was found between gender and self-confidence. There was no effect of gender for life stress. There was no effect of sport for cognitive state anxiety, somatic state anxiety, self-confidence, or life stress. The CSAI-2 self-confidence showed no significant difference between sport. No significant relationships were noted between injury score and any of the independent variables.

Doctor of Philosophy / Department of Human Nutrition / Mark D. Haub / Background: Mixed Martial Arts (MMA) is a growing sport that places competitors into specific weight classes to level the competition field. Athletes “cut weight” to compete in a weight class lower than their “walk around” weight. Techniques for cutting weight include dehydration, starvation and exercise in hot environments jeopardizing health and performance. Higher-protein diets (HPD) have been shown to improve weight loss by increasing satiety, thermogenesis, decreasing total energy intake, and maintain lean mass during periods of energy deficiency, such as weight loss. Research regarding the impact of HPD on performance is limited and conflicting. Specific Aims: The central hypothesis for this study was: HPD diets will elicit greater weight loss and enhance body composition compare to tradition low-fat diets in non-obese, active individuals. The three specific aims of this study are: 1) examine the effects of HPD on weight loss, 2) evaluate the impact of HPD of athletic performance, and 3) determine the effectiveness of HPD for accelerated weight loss. Methods: Military personnel participating in the Combatives program were recruited. Participants were assigned a HPD (40% CHO, 30% PRO, 30% fat), traditional low-fat, high-carbohydrate diet (65% CHO, 15% PRO, 20% fat), or an ad libitum diet for 12-day to 6-weeks depending on their training program. Fields tests for pre- and post-intervention measures of performance included: vertical jump and leg power index to measure explosive power, 600 meter shuttle run for anaerobic capacity and 1.5 mile run for aerobic capacity. Pre- and post-intervention of weight and body composition were determined using dual energy x-ray absorptiometry. Diet analysis software was used to determine nutrient intakes during the study. SPSS statistical software was used to determine descriptive statistics, paired t-tests, Pearson’s Correlations and one-way ANOVA. Results & Conclusions: Due to the unanticipated high rate of dropout, statistical significance was difficult to determine, however, there was a trend for the HPD to elicit fat-free mass retention and it not negatively impact performance. Discrepancies in energy and nutrient intake made dietary comparison difficult. Future studies with larger samples and greater dietary control are needed to further evaluate the research goals of this study.

The problem of this study was to search for possible effects of the pre-competition meal. This problem had two primary facets: 1) to determine performance scores secured by college varsity track and field men under two different pre-competition meal conditions and to study the relationship of the meal last ingested before competition to the scores; 2) to determine the concern for certain psychological and psycho-physiological factors under each of the two pre-competition meal conditions.

This investigation was designed to study coach and self-appraised groupings of intercollegiate tennis players who yield to stress and withstand stress and to determine if personality differences existed between groups. Subjects were 75 intercollegiate tennis players from Texas. A stress inventory and the Cattell Sixteen Personality Factor Questionnaire were instruments utilized in the study. Data were subjected to hierarchical profile-groupings, three-way analyses of variance, and a correlational analysis. Conclusions of the study were that intercollegiate tennis players and male and female players respond to stress differently; intercollegiate tennis players and male and female players who experience different levels of stress have different personalities; and players and coaches do not evaluate the ability to cope with stress similarly.