RESUMO
We demonstrate a low latency respiratory/breathing frequency detection system that is fast (<5 ms), easy to operate, requires no batteries or external power supply and operates fully via computer-standard USB connection. Exercises in controlling ones breathing frequency, usually referred to as paced-breathing exercises, have shown positive effects in treating pulmonary diseases, cardiovascular diseases and stress/anxiety-related disorders. We developed a breathing frequency detection system which uses two pairs of microphones to detect exhalation activity, eliminate noise from the environment and stream the recording data via USB connection to a personal computer. It showed 97.1% reliability (10 subjects) when monitoring breathing activity in non-guided free breathing and 100% reliability (10 subjects) when monitoring breathing activity during interactive paced-breathing exercises. We also evaluated the breathing frequency detection systems noise elimination functionality which showed a reduction of 84.2 dB for stationary (white noise) and a reduction of 79.3 dB for non-stationary (hands clapping) noise.
Assuntos
Microcomputadores , Monitorização Fisiológica/instrumentação , Mecânica Respiratória/fisiologia , Processamento de Sinais Assistido por Computador/instrumentação , Adulto , Idoso , Algoritmos , Exercícios Respiratórios , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Monitorização Fisiológica/métodos , Sensibilidade e Especificidade , SoftwareRESUMO
The aim of the study was to investigate the motives for following sporting events and their dependence upon gender and age of spectators. The study was based on a survey of 1727 adult Slovenes. According to the results the most important motives could be classified in the category of Dionysian values. This means that the role of sport in a spectator's life is not that influential; it is much more considered a source of relaxation and pleasure. Higher values of all motives were given by men. Women found the motive "National importance of sport" more important, while the motives "Attraction of sports" and "Competitiveness, fighting spirit, victory" were placed higher by men. Younger spectators evaluated the motives higher, with motives "Pleasure, Entertainment" and "Sport Dynamism" being most important. The data reveal those attributes of sport that have always caught and will also continue to catch the eye of the spectators.
