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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The influence of aerobic exercise on double product break point in low to moderate risk adults

Campbell, Diane L. January 2009 (has links)
Access to abstract permanently restricted to Ball State community only / Access to thesis permanently restricted to Ball State community only / School of Physical Education, Sport, and Exercise Science
2

Heart Rate and Accelerometry during Singles Footbag Net Play

Siebert, Christopher Michael 01 January 2012 (has links)
This investigation examined the heart rate responses and movement characteristics of experienced footbag net players during singles play. Footbag net is a net/court sport similar to volleyball, but it is played with a footbag (e.g., Hacky-SackTM) using only the feet. In singles footbag net, players are allowed either one or two kicks to propel the footbag over the net. Subjects were 15 males and 1 female, ranging in age from 18- 60 years, with a mean age of 33.6 years. Subjects played two games of singles footbag net using two different scoring systems: "sideout" scoring and "rally" scoring. Mean heart rates were 149.4 bpm for games played under the sideout scoring system and 148.7 bpm for games played under the rally scoring system. Sideout games were 1.2 minutes (~11%) longer than rally games. The mean heart rate responses to competitive play using sideout scoring and rally scoring were not significantly different (p>0.05). For play under both scoring systems, the average exercise intensity--expressed as a percentage of age-predicted maximum heart rate (MHRest)--was 80-81% MHRest. Accelerometer counts accumulated during play were similar for both scoring systems. It is recommended that additional research be conducted to evaluate the extent to which accelerometry may contribute to physiological and metabolic measurements of footbag net competition.
3

Desenvolvimento de equipamento para medir os intervalos R-R / Development of equipment to measure RR intervals

Farah, Leonardo 27 November 2015 (has links)
O presente estudo, teve como objetivo desenvolver um equipamento para medir os intervalos R-R, que tivesse alta correlação com os valores do aparelho padrão ouro de eletrocardiógrafo (ECG), pelos índices de domínio do tempo e domínio da frequência. Para tanto, foi realizado um estudo com 18 alunos de Jiu-Jitsu, do sexo masculino com 35,5±8,6 anos, no mínimo uma frequência semanal de 3 vezes e 1 ano de treinamento. O local foi na academia Barra Gracie de Curitiba PR. Foram submetidos a uma análise em repouso por um período de 7 minutos e posteriormente seus resultados foram convertidos em variabilidade da frequência cardíaca (VFC) e analisados pelos índices no domínio do tempo e domínio da frequência. Os resultados foram comparados estatisticamente por meio do teste de Pearson e a correlação intraclasse (ICC) e de acordo com eles mostra-se viável o desenvolvimento deste equipamento, que apresenta alta correlação e excelente replicabilidade para medir os intervalos R-R. / This study aimed to develop a device to measure RR intervals, which have high correlation with the values of the gold standard device of electrocardiograph (ECG), by the time domain and frequency domain indices. To this end, a study was conducted with 18 students of Jiu-Jitsu, males with 35.5 ± 8.6 years, at least a weekly frequency of 3 times and one year training. The location was at the academy Gracie Barra de Curitiba PR. They underwent an examination at rest for a period of 7 minutes and then the results were converted into heart rate variability (HRV) and analyzed by the indexes in the time domain and the frequency domain. The results were compared statistically using the Pearson test and intraclass correlation (ICC) and according to them proves to be viable the development of this equipment, which is highly correlated and excellent reproducibility for measuring the RR intervals.
4

Desenvolvimento de equipamento para medir os intervalos R-R / Development of equipment to measure RR intervals

Farah, Leonardo 27 November 2015 (has links)
O presente estudo, teve como objetivo desenvolver um equipamento para medir os intervalos R-R, que tivesse alta correlação com os valores do aparelho padrão ouro de eletrocardiógrafo (ECG), pelos índices de domínio do tempo e domínio da frequência. Para tanto, foi realizado um estudo com 18 alunos de Jiu-Jitsu, do sexo masculino com 35,5±8,6 anos, no mínimo uma frequência semanal de 3 vezes e 1 ano de treinamento. O local foi na academia Barra Gracie de Curitiba PR. Foram submetidos a uma análise em repouso por um período de 7 minutos e posteriormente seus resultados foram convertidos em variabilidade da frequência cardíaca (VFC) e analisados pelos índices no domínio do tempo e domínio da frequência. Os resultados foram comparados estatisticamente por meio do teste de Pearson e a correlação intraclasse (ICC) e de acordo com eles mostra-se viável o desenvolvimento deste equipamento, que apresenta alta correlação e excelente replicabilidade para medir os intervalos R-R. / This study aimed to develop a device to measure RR intervals, which have high correlation with the values of the gold standard device of electrocardiograph (ECG), by the time domain and frequency domain indices. To this end, a study was conducted with 18 students of Jiu-Jitsu, males with 35.5 ± 8.6 years, at least a weekly frequency of 3 times and one year training. The location was at the academy Gracie Barra de Curitiba PR. They underwent an examination at rest for a period of 7 minutes and then the results were converted into heart rate variability (HRV) and analyzed by the indexes in the time domain and the frequency domain. The results were compared statistically using the Pearson test and intraclass correlation (ICC) and according to them proves to be viable the development of this equipment, which is highly correlated and excellent reproducibility for measuring the RR intervals.
5

Evaluation of oxygen uptake and heart rate responses during rest and exercise in Chinese adolescents =: 華裔靑少年於休息及運動狀態中的氧攝氧量及心率反應之評量. / 華裔靑少年於休息及運動狀態中的氧攝氧量及心率反應之評量 / VO₂ and HR responses / Evaluation of oxygen uptake and heart rate responses during rest and exercise in Chinese adolescents =: Hua yi qing shao nian yu xiu xi ji yun dong zhuang tai zhong de yang she yang liang ji xin lü fan ying zhi ping liang. / Hua yi qing shao nian yu xiu xi ji yun dong zhuang tai zhong de yang she yang liang ji xin lü fan ying zhi ping liang

January 2001 (has links)
Chan Wan-Sze. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 64-76). / Text in English; abstracts in English and Chinese. / Chan Wan-Sze. / Table of Content --- p.II / List of Table --- p.VI / List of Figure --- p.VII / Abstract --- p.1 / Chapter Chapter 1 --- Introduction --- p.4 / Chapter 1.1 --- Background of study --- p.4 / Chapter 1.1.1 --- Oxygen consumption and heart rate --- p.4 / Chapter 1.1.2 --- V02Rand HRR --- p.7 / Chapter 1.1.3 --- Application of the association between V02 and HR- --- p.8 / Chapter 1.2 --- Purpose and significance --- p.9 / Chapter 1.3 --- Operational Definitions --- p.10 / Chapter 1.4 --- Hypotheses --- p.11 / Chapter Chapter 2 --- Review of Literature --- p.12 / Chapter 2.1 --- Exercise prescription for Cardiorespiratory Fitness --- p.14 / Chapter 2.1.1 --- Mode of exercise --- p.14 / Chapter 2.1.2 --- Frequency --- p.15 / Chapter 2.1.3 --- Duration --- p.16 / Chapter 2.1.4 --- Intensity --- p.17 / Chapter 2.2 --- Measurement of exercise intensity --- p.19 / Chapter 2.2.1 --- Rate of Perceived Exertion (RPE) --- p.21 / Chapter 2.2.2 --- Heart Rate (HR) --- p.23 / Chapter 2.3 --- Children and exercise intensity --- p.29 / Chapter 2.4 --- Summary --- p.30 / Chapter Chapter 3 --- Methodology --- p.32 / Chapter 3.1 --- Participants --- p.32 / Chapter 3.2 --- Procedures --- p.32 / Chapter 3.2.1 --- Resting measures --- p.34 / Chapter 3.2.2 --- Peak oxygen uptake (V02peak) testing --- p.34 / Chapter 3.3 --- Equipment and instrumentation --- p.36 / Chapter 3.3.1 --- Body mass and height --- p.36 / Chapter 3.3.2 --- Expired gases collection --- p.37 / Chapter 3.3.3 --- Heart rate measurement --- p.38 / Chapter 3.3.4 --- Determination of oxygen uptake (V02peak) and heart rate (HR) values --- p.38 / Chapter 3.4 --- Statistical Analysis --- p.39 / Chapter Chapter 4 --- Results --- p.41 / Chapter 4.1 --- Descriptive statistics --- p.41 / Chapter 4.2 --- Resting and maximal measures --- p.43 / Chapter 4.3 --- Submaximal exercise --- p.45 / Chapter 4.3.1 --- Phase I: %HRmax versus %V02peak --- p.47 / Chapter 4.3.2 --- Phase II: %HRR versus %V02peak --- p.48 / Chapter 4.3.3 --- Phase III: %HRR versus %V02R --- p.50 / Chapter 4.4 --- Summary of results --- p.53 / Chapter Chapter 5 --- Discussion and Conclusion --- p.54 / Chapter 5.1 --- Phase I: Preliminary findings from basic measures --- p.54 / Chapter 5.2 --- Phase II: %HRmax versus %V02peak --- p.57 / Chapter 5.3 --- Phase III: %HRR versus %V02peak --- p.58 / Chapter 5.4 --- Phase IV: %HRR versus %V02R --- p.60 / Chapter 5.5 --- Limitations of the study --- p.62 / Chapter 5.6 --- Conclusion and implications --- p.62 / Chapter 5.7 --- Recommendations and further studies --- p.63 / References --- p.64 / Appendix A --- p.77 / Appendix B --- p.79 / Appendix C --- p.80 / Appendix D --- p.81 / Appendix E --- p.82 / Appendix F --- p.83
6

Monitoramento da frequência cardíaca via método de magnificação de vídeo e Euleriana em tempo real

Simioni, Maicon Cezar 18 August 2015 (has links)
O monitoramento de sinais vitais em pacientes tem o intuito de obter rapidamente dados relevantes para decisões médicas. No entanto, tal mensuração é pouco eficiente, difícil, quando não impossível, em determinados casos, como por exemplo em pacientes vítimas de queimaduras, em função da impossibilidade de colocar o eletrodo diretamente na pele, ou em recém-nascidos, devido à fragilidade da pele. Este estudo trata do desenvolvimento de um sistema para aquisição contínua de sinais fotopletismográficos para a telemetria da frequência cardíaca em tempo real, em uma plataforma de baixo custo, utilizando a biblioteca OpenCV e o método desenvolvido pelo MIT chamado de Magnificação de Vídeo Euleriana, que revela variações que são imperceptíveis a olho nu. Para desenvolver o sistema foi utilizada a plataforma de hardware Raspberry Pi Versão B com processador ARM11 de 700MHz e 512MB de memória RAM. Os dados da frequência cardíaca coletados dos experimentos foram comparados com os dados coletados por um oxímetro de dedo More Fitness modelo MF-425. Esse foi escolhido por utilizar o mesmo princípio "Fotopletismografia"para efetuar a medição. Após a coleta de dados foi estimado o intervalo de confiança para aferir a precisão do sistema, que correspondeu a 96,5% em relação ao oxímetro utilizado. Ficou evidente que o meio utilizado para medir a frequência cardíaca via método de magnificação de vídeo Euleriana em tempo real é uma tecnologia de baixo custo (aproximadamente R$300,00) quando comparado aos monitores multiparamétricos utilizados para o monitoramento de pacientes críticos, cujo custo varia entre R$ 8.000,00 e R$ 34.000,00. Sendo assim, também contribui com a redução de custos no tratamento ao doente que necessita de monitorização constante, possibilitando que, com a economia gerada pela aquisição e implantação desta tecnologia, viabilize um maior investimento em outras áreas dos hospitais. / Monitoring vital signs in patients is used to obtain relevant data for medical decisions in a fast way. However, this measurement is both inefficient and difficult, if not impossible in certain cases, such as in burnt victims, due to the impossibility of placing the electrodes directly on the skin or in infants, because of the fragility of skin. This study aims to develop of a system for continuous acquisition of photopletismografics (PPG) signals for the telemetry of heart rate in real time in a low cost platform using the OpenCV library and the method developed by MIT called the Eulerian Video Magnification, amplifying variations that are imperceptible to the naked eye. To develop the system were used the hardware platform Raspberry Pi version B with ARM11 700MHz processor and 512MB RAM. The heart rate data collected from the experi- ments were compared with data collected by a finger oximeter model More Fitness MF-425 it was chosen, by using the same working principle "PPG"to effect the measurement. After data collection was estimated the confidence interval to measure system accuracy, which corresponded to 96,5% compared to the oximeter used. It became clear that the developed system used to measure heart rate via magnification method of Eulerian live video is a low-cost technology (approximately R$ 300.00) compared to the multiparameter monitors used for monitoring critically patients, ranging in cost from R$ 8,000.00 to R$ 34,000.00. So also, it contributes to cost reduction in the treatment to the patient in need of constant monitoring, enabling with the savings generated by the acquisition and deployment of this technology makes possible greater investment in other areas of hospitals. / 5000
7

Monitoramento da frequência cardíaca via método de magnificação de vídeo e Euleriana em tempo real

Simioni, Maicon Cezar 18 August 2015 (has links)
O monitoramento de sinais vitais em pacientes tem o intuito de obter rapidamente dados relevantes para decisões médicas. No entanto, tal mensuração é pouco eficiente, difícil, quando não impossível, em determinados casos, como por exemplo em pacientes vítimas de queimaduras, em função da impossibilidade de colocar o eletrodo diretamente na pele, ou em recém-nascidos, devido à fragilidade da pele. Este estudo trata do desenvolvimento de um sistema para aquisição contínua de sinais fotopletismográficos para a telemetria da frequência cardíaca em tempo real, em uma plataforma de baixo custo, utilizando a biblioteca OpenCV e o método desenvolvido pelo MIT chamado de Magnificação de Vídeo Euleriana, que revela variações que são imperceptíveis a olho nu. Para desenvolver o sistema foi utilizada a plataforma de hardware Raspberry Pi Versão B com processador ARM11 de 700MHz e 512MB de memória RAM. Os dados da frequência cardíaca coletados dos experimentos foram comparados com os dados coletados por um oxímetro de dedo More Fitness modelo MF-425. Esse foi escolhido por utilizar o mesmo princípio "Fotopletismografia"para efetuar a medição. Após a coleta de dados foi estimado o intervalo de confiança para aferir a precisão do sistema, que correspondeu a 96,5% em relação ao oxímetro utilizado. Ficou evidente que o meio utilizado para medir a frequência cardíaca via método de magnificação de vídeo Euleriana em tempo real é uma tecnologia de baixo custo (aproximadamente R$300,00) quando comparado aos monitores multiparamétricos utilizados para o monitoramento de pacientes críticos, cujo custo varia entre R$ 8.000,00 e R$ 34.000,00. Sendo assim, também contribui com a redução de custos no tratamento ao doente que necessita de monitorização constante, possibilitando que, com a economia gerada pela aquisição e implantação desta tecnologia, viabilize um maior investimento em outras áreas dos hospitais. / Monitoring vital signs in patients is used to obtain relevant data for medical decisions in a fast way. However, this measurement is both inefficient and difficult, if not impossible in certain cases, such as in burnt victims, due to the impossibility of placing the electrodes directly on the skin or in infants, because of the fragility of skin. This study aims to develop of a system for continuous acquisition of photopletismografics (PPG) signals for the telemetry of heart rate in real time in a low cost platform using the OpenCV library and the method developed by MIT called the Eulerian Video Magnification, amplifying variations that are imperceptible to the naked eye. To develop the system were used the hardware platform Raspberry Pi version B with ARM11 700MHz processor and 512MB RAM. The heart rate data collected from the experi- ments were compared with data collected by a finger oximeter model More Fitness MF-425 it was chosen, by using the same working principle "PPG"to effect the measurement. After data collection was estimated the confidence interval to measure system accuracy, which corresponded to 96,5% compared to the oximeter used. It became clear that the developed system used to measure heart rate via magnification method of Eulerian live video is a low-cost technology (approximately R$ 300.00) compared to the multiparameter monitors used for monitoring critically patients, ranging in cost from R$ 8,000.00 to R$ 34,000.00. So also, it contributes to cost reduction in the treatment to the patient in need of constant monitoring, enabling with the savings generated by the acquisition and deployment of this technology makes possible greater investment in other areas of hospitals. / 5000

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