97 research outputs found
Influência da música no estado de ânimo e no desempenho em exercício
The music influence in the performance, in moderate exercise and mood states has already been well elucidated in literature. However, some studies have found improvement in these variables in the intense and severe exercise. Besides, listening to music is enough disseminated among physical activity apprentices, who can select music in accordance to their personal preferences. However, the relation musical preference between the performance and mood state is not explained. Therefore, two goals were proposed. The first study was to analyze the influence of listening preferred and non-preferred music considering the performance, physiologic responses, Rating Perceived Exertion (RPE) and mood states in the severe exercise on ergometer cycle. The second goal was to analyze the influence of listening preferred and non-preferred music according to the same variables of the first goal, but in the intense exercise on the ergometer cycle. The study one determined Critical Power model parameters (CP) in different protocols, Preferred Music (PM), Non- Preferred Music (NP) and Without Music (WM). Four women and six men were submitted to the study. After listening or not to the music the subjects carried out the warm-up and the test. The Heart Rate (HR), Blood Concentration Lactate ([LA]), RPE and mood states were examined. Significant differences were not found in HR, [LA], RPE and CP parameters. However, the data showed that the positive mood states in fatigue moment was higher in PM than in NP and WM. The data also showed that the audition of the preferred music is only able to influence the mood state in severe exercise. Four women and six men were submitted on the second study. CP parameters were determined across the two loads after two tests (Load CP and Load below CP). In this study, the HR, [LA], RPE and mood states were examined during twenty minutes. No significant difference was found in the psychological and physiological variables. Therefore, the performance in PM (9275 m) was higher than WM (7857 m) and NP (7597 m) in load CP. In the same study, two women and four men were submitted until the fatigue. The same variables and time to exhaustion (tlim) to PM, NP and WM were analyzed. The HR, in the load below CP, was higher in PM (155 bpm; 30841m) than in NP (148 bpm; 21265m) and WM (145 bpm, 23556m). The data showed that listen to the preferred music improves the performance in intensive exercise. The results gotten through the studies show the audition influence of the preferred music in the physiological and psychological variables is a dependent intensity.É bem conhecida a influência da música no desempenho do exercício no domínio moderado e nos estados de ânimo. Poucos estudos investigaram essa relação em exercícios no domínio intenso e severo. Além disso, a audição de música é bastante disseminada entre praticantes de atividade física, os quais devem selecionar músicas de acordo com suas preferências pessoais. Entretanto, a relação entre a preferência musical e o desempenho e o estado de ânimo não está esclarecido. Desse modo, dois estudos foram propostos. O objetivo do estudo 1 foi de verificar a influência da audição da música preferida e não preferida no desempenho, nas respostas fisiológicas, na percepção subjetiva de esforço (PSE) e nos estados de ânimo em exercícios no domínio severo no cicloergômetro. O objetivo do estudo 2 foi de verificar a influência da audição da música preferida e não preferida nas mesmas variáveis do estudo 1 em exercícios no domínio intenso no cicolergômetro. No primeiro estudo foram determinados os parâmetros da Potência Crítica (PCrit) em diferentes protocolos, Música Preferida (MP), Não Preferida (NP) e Sem Música (SM). Foram submetidos para o estudo quatro mulheres e seis homens. Após ouvirem ou não a música os sujeitos realizaram o aquecimento e em seguida o teste. Foram avaliados a Freqüência Cardíaca (FC), concentração de lactato sanguíneo [LAc]s, PSE e estado de ânimo. A FC, PSE, [LAC]s e os parâmetros da PCrit não apresentaram diferença estatística para os três diferentes protocolos. Porém os estados de ânimo para os adjetivos positivos apresentaram maiores valores no momento da fadiga para a MP. Conclui-se que a audição da música preferida só é capaz de influenciar os estados de ânimo no domínio severo. Participaram do estudo 2, cinco mulheres e seis homens,os quais foram submetidos a 2 protocolos de teste. No primeiro foi obtido os parâmetros da PCrit através de 2 cargas preditivas. No segundo os sujeitos realizaram 2 testes uma com a carga da PCrit e a outra abaixo dela com a MP, NP e SM. Avaliou-se a FC, PSE, [Lac]s e os estados de ânimo durante 20 minutos de exercício. Não houve diferença nas variáveis fisiológicas e psicológicas. Porém houve um aumento no desempenho na carga da PCrit para a MP (9275 m) quando comparado com a SM (7857 m) e NP (7597 m). Nesse mesmo estudo, duas mulheres e quatro homens realizaram o teste até a fadiga. Foram registradas as mesmas variáveis e o tempo até a exaustão (tlim) para MP,NP e SM. A FC e o desempenho na carga abaixo da PCrit, apresentaram valores maiores na MP (155 bpm; 30841m ) do que NP (148 bpm; 21265) e SM (145 bpm; 23556m ). Conclui-se que a audição da música preferida é capaz de melhorar o desempenho no domínio intenso. Através dos resultados dos dois estudos, conclui-se que a influência da audição da música preferida nas variáveis fisiológicas e psicológicas é intensidade dependente
OVICIDAL EFFECT OF PIPERACEAE SPECIES ON Biomphalaria glabrata, Schistosoma mansoni HOST
SUMMARY Schistosomiasis is a neglected disease with public health importance in tropical and subtropical regions. An alternative to the disease control is the use of molluscicides to eliminate or reduce the intermediate host snail population causing a reduction of transmission in endemic regions. In this study nine extracts from eight Piperaceae species were evaluated against Biomphalaria glabrata embryos at blastula stage. The extracts were evaluated in concentrations ranging from 100 to 10 mg/L. Piper crassinervium and Piper tuberculatum extracts were the most active (100% of mortality at 20 mg/L and 30 mg/L respectively).RESUMO A esquistossomose é uma doença negligenciada de importância para a saúde pública em regiões tropicais e subtropicais. Uma alternativa para o controle da doença é o uso de moluscicidas para eliminar ou reduzir a população de caramujo hospedeiro, acarretando uma redução da transmissão da doença nas regiões endemicas. Neste estudo, nove extratos vegetais provenientes de oito espécies de Piperaceae foram expostos a embriões de Biomphalaria glabrata no estágio de blástula. Os extratos foram avaliados em concentrações que variaram entre 100 e 10 mg/L, sendo Piper crassinervium e Piper tuberculatum os extratos mais ativos (100% de mortalidade a 20 mg/L e 30 mg/L respectivamente)
Influência da música preferida e não preferida no estado de ânimo e no desempenho de exercícios realizados na intensidade vigorosa
The study aimed to investigate the preferred and non - preferred music influence upon mood and performance during heavy exercise domain. Four women and six men physically active were submitted to the study. Ten preferred songs and ten non - preferred songs were chosen by the subjects to listen during a cycle ergometer exercise. Each subject performed three protocols, Preferred Music (PM), Non - Preferred Music (NPM) and No Music (NM), with three rectangular exhausting tests (high, medium and low) on ergometer cycle. The mood was evaluated through the List of Mood- Reduced and Illustrated (LM-RI) wich was applied in the beginning and at the end of the test. Such list was composed of seven positive adjectives (happy, active, calm, light, pleasant, full of energy and spiritual) and seven negative adjectives (bashful, sad, weighted, unpleasant, anxious, afraid e useless).Time to exhaustion and work were examined in all protocols. Listening to the preferred music resulted in positive adjectives compared to the non - preferred music and no music conditions. The negative adjectives had been increased on the time to exhaustion. No significant differences (p >; 0.05) were found in heart rate, blood lactate concentration, ratings of perceived exertion and performance between protocols. Thus, listening to preferred music and no-preferred music do not influence the performance during heavy exercises. Therefore, preferred music increases positive adjectives.O objetivo do presente estudo foi investigar a influência da música preferida e não preferida nos estados de ânimo e no desempenho do exercício realizado em intensidades vigorosas. A amostra foi constituída por quatro mulheres e seis homens universitários fisicamente ativos. Os sujeitos escolheram 10 músicas de preferência e 10 músicas de não preferência para a prática de exercício no cicloergômetro. Em seguida, realizaram três protocolos de testes no cicloergômetro (Música Preferida, Música Não Preferida e Sem Música) constituídos por três testes exaustivos retangulares (alta, média e baixa). Para a avaliação dos estados de ânimo foi utilizado a Lista de Estado de Ânimorreduzida e Ilustrada (LEA-RI) que foi aplicado no inicio e no final do teste. Essa lista é composta por sete adjetivos positivos (feliz, ativo, calmo, leve, agradável, cheio de energia e espiritual) e sete adjetivos negativos (tímido, triste, pesado, desagradável, agitado, com medo e inútil). Foram registrados o trabalho final e o tempo até a exaustão em todos os protocolos. Foi verificado que o exercício realizado em intensidades vigorosas com a presença da música preferida apresenta maiores valores dos adjetivos positivos (p ; 0,05). Portanto, a audição da música preferida e não preferida não influenciam o desempenho em exercícios vigorosos. Entretanto, a música preferida é capaz de melhorar os estados de ânimo positivos
Influence of aerobic fitness on the correspondence between heart rate variability and ventilatory threshold
The aims of this study were to verify the correspondence between heart rate variability (HRV) and ventilatory thresholds during a progressive exercise test and the relationship with low and high aerobic fitness levels. Twenty male volunteers (29.5±6.2 years; 75.9±13.0 kg; 175.0±7.4 cm) were recruited. The subjects were allocated to two groups according to their VO2max <48.8 ml•kg−1•min−1 (low cardiorespiratory fitness group) (n=10) and >48.81 ml•kg−1•min−1 (high cardiorespiratory fitness group) (n=10). A progressive test was performed, consisting of 3-min stages beginning at 25 watts and increasing by 25 watts every 3-min. The HRV threshold (HRVT) and ventilatory threshold (VT) analyses were performed through visual inspection. The comparisons with RMSSD values in percentage of maximum workload resulted in a higher effect size (ES) than the SDNN values. The VO2 in the high cardiorespiratory fitness group at VT (+32%), HRVTRMSSD (+27%), and HRVTSDNN (+31%) was signifi cantly higher compared to the group with low cardiorespiratory fitness. Higher values were observed for relative load (W•kg-1) at VT and HRVTSDNN in the high cardiorespiratory fitness group in comparison with the low cardiorespiratory fitness group (P<0.05), but no difference for VT and HRVTRMSSD. Signifi cant correlations between at VT and HRVTSDNN (r=0.77) were found only in the low cardiorespiratory fitness group. Cardiorespiratory fitness should be regarded as a factor for HRVT evaluation. The HRVTSDNN was closer to the VT in the low cardiorespiratory fitness group than the HRVTRMSSD, however, the use of vagal modulation assessed using the HRV parameter was more sensitive to observe possible differences regarding cardiorespiratory fitness.The aims of this study were to verify the correspondence between heart rate variability (HRV) and ventilatory thresholds during a progressive exercise test and the relationship with low and high aerobic fitness levels. Twenty male volunteers (29.5±6.2 years; 75.9±13.0 kg; 175.0±7.4 cm) were recruited. The subjects were allocated to two groups according to their VO2max <48.8 ml•kg−1•min−1 (low cardiorespiratory fitness group) (n=10) and >48.81 ml•kg−1•min−1 (high cardiorespiratory fitness group) (n=10). A progressive test was performed, consisting of 3-min stages beginning at 25 watts and increasing by 25 watts every 3-min. The HRV threshold (HRVT) and ventilatory threshold (VT) analyses were performed through visual inspection. The comparisons with RMSSD values in percentage of maximum workload resulted in a higher effect size (ES) than the SDNN values. The VO2 in the high cardiorespiratory fitness group at VT (+32%), HRVTRMSSD (+27%), and HRVTSDNN (+31%) was signifi cantly higher compared to the group with low cardiorespiratory fitness. Higher values were observed for relative load (W•kg-1) at VT and HRVTSDNN in the high cardiorespiratory fitness group in comparison with the low cardiorespiratory fitness group (P<0.05), but no difference for VT and HRVTRMSSD. Signifi cant correlations between at VT and HRVTSDNN (r=0.77) were found only in the low cardiorespiratory fitness group. Cardiorespiratory fitness should be regarded as a factor for HRVT evaluation. The HRVTSDNN was closer to the VT in the low cardiorespiratory fitness group than the HRVTRMSSD, however, the use of vagal modulation assessed using the HRV parameter was more sensitive to observe possible differences regarding cardiorespiratory fitness
The Effect of a Community-Based, Primary Health Care Exercise Program on Inflammatory Biomarkers and Hormone Levels
The aim of this study was to analyze the impact of a community-based exercise program in primary care on inflammatory biomarkers and hormone levels. The 1-year quasiexperimental study involved 13 women (mean age = 56.8 ± 11.4 years) and it was developed in two basic health care units in Rio Claro City, Brazil. The physical exercise intervention was comprised of two, 60-minute sessions/week. The inflammatory biomarkers were measured at baseline, 6 months, and 1 year. Repeated measures ANOVA analyses indicated that the intervention was effective in reducing CRP and TNFα after 1 year compared to baseline and 6 months . There were no changes in IL10, IL6, and insulin after 1 year. However, leptin significantly increased at 1 year . The major finding of this study is that a community-based exercise program can result in a decrease or maintenance of inflammatory biomarkers after 1 year, and thus has the potential to be a viable public health approach for chronic disease prevention
EXPERIENCE DE EL GINÁSTICA LABORAL DE LA / UNESP-RÍO CLARO
O departamento de Educação Física da Universidade Estadual Paulista (UNESP)- Campus Rio Claro desenvolve desde 1999 o Programa de Ginástica Laboral (GL). O programa tem como objetivos prevenir os Distúrbios Osteomusculares Relacionados ao Trabalho, melhorar a qualidade de vida, reduzir a inatividade física e promover um estilo de vida saudável. Atualmente, a equipe é formada por três professores, um pósgraduando e oito estagiários do curso de educação física, além da participação de 40 funcionários da própria universidade. As aulas são realizadas duas vezes na semana e são constituídas de exercícios de flexibilidade, coordenação, força, atividades lúdicas e massagem. No decorrer do ano, acontecem avaliações da capacidade funcional, nível de atividade física, qualidade de vida, estágio de mudança de comportamento para atividade física e estado de ânimo de todos os praticantes da GL. Os resultados indicaram que o programa de GL é capaz de melhorar a qualidade de vida, estado de ânimo e manter as capacidades funcionais dos seus praticantes.The Physical Activity department of São Paulo State University (SPSU) developed since 1999 the Active Breaks Program. The aim this program is to prevent of Work-Related Musculoskeletal Disorders, improve the quality of life, decrease the physical inactive and improve the health life. Nowadays, the team is formed by three professors, one graduate and eight undergraduates of physical education course and also participation of 40 workers of university. The classes occur twice by week and the classes are formed by stretching, coordination, agility, strength, ludic activity and massage. During the year is evaluated the functional fitness, physical activity level, quality of life, state of behavior change to physical activity and mood of practitioners. The result showed that the Active Breaks Program can improve the quality of life, mood and can keep the functional fitness of their practitioners.El departamento de Educación Física de la Universidad Estadual Paulista (UNESP) - Campus Río Claro desarrolla desde 1999 el Programa de Gimnasia Laboral (GL). El programa tiene como objetivos prevenir los Disturbios Osteomusculares Relacionados al Trabajo, mejorar la calidad de vida, reducir la inactividad física y promover un estilo de vida saludable. Actualmente, el equipo es formado por tres profesores, una estudiante de posgrado y ocho alumnos de práctica del curso de educación física, sumandose, a todos ellos, la participación de 40 operarios de la propia universidad. Las clases son realizadas dos veces por semana y son constituidas de ejercicios de flexibilidad, coordinación, agilidade, fuerza, actividades lúdicas y masajes. Durante el año es evaluada la capacidad funcional, el nivel de actividad física, la calidad de vida, el nivel de mudanza de comportamiento con especto a la práctica de actividad física y el estado de ánimo de los participantes. Los resultados indicaron que el programa de GL es capaz de mejorar la calidad de vida, el estado de ánimo y ayuda a mantener las capacidades funcionáis de sus practicantes
Choosing the most effective pattern classification model under learning-time constraint
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Nowadays, large datasets are common and demand faster and more effective pattern analysis techniques. However, methodologies to compare classifiers usually do not take into account the learning-time constraints required by applications. This work presents a methodology to compare classifiers with respect to their ability to learn from classification errors on a large learning set, within a given time limit. Faster techniques may acquire more training samples, but only when they are more effective will they achieve higher performance on unseen testing sets. We demonstrate this result using several techniques, multiple datasets, and typical learning-time limits required by applications.Nowadays, large datasets are common and demand faster and more effective pattern analysis techniques. However, methodologies to compare classifiers usually do not take into account the learning-time constraints required by applications. This work presentsCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOFUNDECT - FUNDAÇÃO DE APOIO AO DESENVOLVIMENTO DConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CNPq [303182/2011-3, 477692/2012-5, 552559/2010-5, 481556/2009-5, 303673/2010-9, 470571/2013-6, 306166/2014-3, 311140/2014-9]CAPES [01-P-01965/2012]FAPESP [2011/14058-5, 2012/18768-0, 2007/52015-0, 2013/20387-7, 2014/16250-9]311140/2014-9; 303182/2011-3; 477692/2012-5; 552559/2010-5; 481556/2009-5; 303673/2010-9; 303182/2011-3; 470571/2013-6; 306166/2014-301-P-01965/20122011/14058-5, 2012/18768-0; 2007/52015-0; 2013/20387-7; 2014/16250-9sem informaçã
Hiperdia e atividade física no Brasil
Segundo a Organização Pan Americana de Saúde (OPAS), as Doenças Crônicas não Transmissíveis (DCNT) são as principais causas de morte e de incapacidade prematura na maioria dos países da América do Sul, incluindo o Brasil. O objetivo do estudo foi verificar a associação entre valores gastos em intervenções médicas aplicadas a hipertensão arterial e diabetes mellitus nas capitais dos 26 estados do país e no Distrito Federal com o nível de Atividade Física em adultos. Para tanto, foram adquiridos dados de adultos com idade a partir de 18 anos de ambos os sexos, cadastrados no programa de hipertensão arterial e diabetes mellitus do Sistema Único de Saúde (SUS), o HiperDia, no ano de 2014, mesmo ano da publicação da pesquisa VIGITEL, utilizado como parâmetro para os índices de atividade física das capitais dos estados brasileiros e o Distrito Federal. Os resultados demonstraram que quanto maior o nível de atividade física, menor é o gasto e o número de internações relacionadas à hipertensão e diabetes. Conclui-se que as variáveis encontramse de forma inversamente proporcional, assim ficando evidente o impacto positivo que a prática de Atividade Física desempenha nas intervenções associadas à hipertensão arterial e ao diabetes mellitus.Mesa de trabajo 7: Educación Física y SaludFacultad de Humanidades y Ciencias de la Educació
Health related quality of life is differently associated with leisure-time physical activity intensities according to gender: a cross-sectional approach
Background: Several studies have demonstrated a positive association between physical activity (PA) and health-related quality of life (HRQL). However, studies have suggested that this association depends both on the PA intensity and the domain of HRQL evaluated. This study aimed to explore the association between physical, mental and overall HRQL with recommended levels of PA. PA levels were divided into moderate and vigorous intensity leisure-time PA and total leisure-time PA.Methods: The study included 1001 adults, 582 women (46 +/- 17 years) and 419 men (43 +/- 16 years), residents in Rio Claro-SP, Brazil. All participants completed the SF-36 questionnaire to assess HRQL and the long version of the International Physical Activity Questionnaire (IPAQ) to assess level and intensities of leisure-time PA. Total leisure-time PA at moderate intensity was classified as: less than 9 min/week, 10-149 min/week, 150-299 min/week and 300 min/ week or more. Total leisure-time PA at vigorous intensity was classified as: less than 9 min/week, 10 to 74.9 min/week, 75-149 min/week and 150 min/week or more. Multiple linear regression was performed in STATA version 12.0.Results: Among women, moderate intensity and total leisure-time PA were associated with physical health. Among men, moderate and vigorous intensity and total leisure-time PA were associated with physical health and overall HRQL. Furthermore, moderate intensity and total leisure-time PA were associated with mental health in men. However, vigorous intensity PA was not associated with mental health for this group.Conclusion: The different domains of HRQL were associated with different levels and intensities of PA in leisure-time according to gender of adults. These findings indicate the complexity and importance of evaluating the HRQL stratified by gender and consider the different levels and intensities of PA.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP
Clinical Study The Effect of a Community-Based, Primary Health Care Exercise Program on Inflammatory Biomarkers and Hormone Levels
The aim of this study was to analyze the impact of a community-based exercise program in primary care on inflammatory biomarkers and hormone levels. The 1-year quasiexperimental study involved 13 women (mean age = 56.8 ± 11.4 years) and it was developed in two basic health care units in Rio Claro City, Brazil. The physical exercise intervention was comprised of two, 60-minute sessions/week. The inflammatory biomarkers were measured at baseline, 6 months, and 1 year. Repeated measures ANOVA analyses indicated that the intervention was effective in reducing CRP and TNF after 1 year compared to baseline and 6 months ( < 0.05). There were no changes in IL10, IL6, and insulin after 1 year. However, leptin significantly increased at 1 year ( = 0.016). The major finding of this study is that a community-based exercise program can result in a decrease or maintenance of inflammatory biomarkers after 1 year, and thus has the potential to be a viable public health approach for chronic disease prevention
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