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Measuring of pulse rate using smartphone
Víteček, Jiří ; Smital, Lukáš (referee) ; Němcová, Andrea (advisor)
This bachelor thesis deals with the possibility to measure heart rate using a smartphone. Today, many people own a smartphone. Newer devices can record various data thanks to its sensors and additional equipment. The current trend is to use the data so that the mobile phone can replace other devices, e.g. navigation, camera, camcorder or multimedia player. Recently, mobile phones have also been used in the field of medicine and, thanks to their mass extension, there is the potential to use them to detect health problems early on. With a functional mobile application, testing becomes cheap, fast, always available and easy to the general public. The beginning of the thesis describes the basic facts about physiology and anatomy of the heart, and circulatory system. Methods of heart rate monitoring using standard devices and smartphones, and measurement history are discussed as well. Two proposed methods using the smartphone's microphone and accelerometer are described below. For each method, testing and statistical evaluation are described. The thesis confirmed the possibility of using these methods for relatively accurate pulse rate measurement, even under different measuring conditions. Created applications with graphical user interfaces are described in the thesis including examples. The last part contains a comparison of methods, recommendations for measurement and final evaluation.
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Athletic training. Personal performance development and training.
Broda, Michal ; Vindušková, Jitka (advisor) ; Krátký, Petr (referee)
Athletic training. Personal performance development and training. Objectives: The aim of this study was to analyze performance development and training of Michal Broda during his existing athletic career with focus on training after year 2004. We investigated the use of heart rate monitoring for training optimization. We also discussed training adequacy in terms of annual training cycle. Methods: In our work we used empirical methods of pedagogical research. We obtained different qualitative and quantitative indicators from training documentation and analysed them using mathematical and statistical methods. Heart rate data were proccessed with Polar Precision Performance™ software. This software automatically calculates total loads in each metabolic zone, number of training entries and total training time, elapsed distance, burned calories, total power, speed, maximum and minimum heart rate. Results: We came to a conclusion that Michal Broda's training has been continually improving. We observed a training load increase in both general and specific indicators. We didn't confirm a positive relationship between total distance runned for special endurance and 800-m running performance. Heart rate monitoring helped to find optimal training loads and thus improve running performance. Keywords: 800 meter...
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Do Information Cascades Arise Easier under Time Pressure? Experimantal Approach.
Cingl, Lubomír ; Bauer, Michal (advisor) ; Pertold, Filip (referee)
Information cascades as a form of rational herding help to explain real-life phenomena such as fads, fashion, creation of 'bubbles' in financial markets or conformity in general. In this paper I attempt to model propensity to herd and infer its relationship to time-pressure by conducting a laboratory experiment. I let subjects perform a simple cognitive task under different treatment conditions and levels of time pressure with the possibility to herd. The order of decision-making is endogenous and the task is not probabilistic. Rather, I impose uncertainty of private signal by different levels of time pressure. This is expected to make participants prone to imitate the behavior of others. Apart from that I examine the effect of reputation (also called endorsement effect) as an addition to the public pool of information, which is expected to increase the probability to herd. The main findings are that propensity to herd was not significantly influenced by different levels of time pressure. Information cascades arose, but never in a perfect form. Personality traits measured by the Big Five protocol contribute considerably to the explanation of the model, but their relationship is not straightforward. Heart-rate increased during performance of a task, but was not correlated to subjectively stated...
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Measuring of pulse rate using smartphone
Víteček, Jiří ; Smital, Lukáš (referee) ; Němcová, Andrea (advisor)
This bachelor thesis deals with the possibility to measure heart rate using a smartphone. Today, many people own a smartphone. Newer devices can record various data thanks to its sensors and additional equipment. The current trend is to use the data so that the mobile phone can replace other devices, e.g. navigation, camera, camcorder or multimedia player. Recently, mobile phones have also been used in the field of medicine and, thanks to their mass extension, there is the potential to use them to detect health problems early on. With a functional mobile application, testing becomes cheap, fast, always available and easy to the general public. The beginning of the thesis describes the basic facts about physiology and anatomy of the heart, and circulatory system. Methods of heart rate monitoring using standard devices and smartphones, and measurement history are discussed as well. Two proposed methods using the smartphone's microphone and accelerometer are described below. For each method, testing and statistical evaluation are described. The thesis confirmed the possibility of using these methods for relatively accurate pulse rate measurement, even under different measuring conditions. Created applications with graphical user interfaces are described in the thesis including examples. The last part contains a comparison of methods, recommendations for measurement and final evaluation.
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|
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Athletic training. Personal performance development and training.
Broda, Michal ; Vindušková, Jitka (advisor) ; Krátký, Petr (referee)
Athletic training. Personal performance development and training. Objectives: The aim of this study was to analyze performance development and training of Michal Broda during his existing athletic career with focus on training after year 2004. We investigated the use of heart rate monitoring for training optimization. We also discussed training adequacy in terms of annual training cycle. Methods: In our work we used empirical methods of pedagogical research. We obtained different qualitative and quantitative indicators from training documentation and analysed them using mathematical and statistical methods. Heart rate data were proccessed with Polar Precision Performance™ software. This software automatically calculates total loads in each metabolic zone, number of training entries and total training time, elapsed distance, burned calories, total power, speed, maximum and minimum heart rate. Results: We came to a conclusion that Michal Broda's training has been continually improving. We observed a training load increase in both general and specific indicators. We didn't confirm a positive relationship between total distance runned for special endurance and 800-m running performance. Heart rate monitoring helped to find optimal training loads and thus improve running performance. Keywords: 800 meter...
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Do Information Cascades Arise Easier under Time Pressure? Experimantal Approach.
Cingl, Lubomír ; Bauer, Michal (advisor) ; Pertold, Filip (referee)
Information cascades as a form of rational herding help to explain real-life phenomena such as fads, fashion, creation of 'bubbles' in financial markets or conformity in general. In this paper I attempt to model propensity to herd and infer its relationship to time-pressure by conducting a laboratory experiment. I let subjects perform a simple cognitive task under different treatment conditions and levels of time pressure with the possibility to herd. The order of decision-making is endogenous and the task is not probabilistic. Rather, I impose uncertainty of private signal by different levels of time pressure. This is expected to make participants prone to imitate the behavior of others. Apart from that I examine the effect of reputation (also called endorsement effect) as an addition to the public pool of information, which is expected to increase the probability to herd. The main findings are that propensity to herd was not significantly influenced by different levels of time pressure. Information cascades arose, but never in a perfect form. Personality traits measured by the Big Five protocol contribute considerably to the explanation of the model, but their relationship is not straightforward. Heart-rate increased during performance of a task, but was not correlated to subjectively stated...
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