This study aimed to investigate and compare the effects of preferred music on anaerobic threshold determination in an incremental running test, as well the physiological responses and perceived exertion at this intensity, in physically active men and women. Additionally, by using area under the curve (AUC) analysis of the parameters of interest during the graded test, we studied the effects of music at two physiological moments—before and after anaerobic threshold intensity (iAT)—in men and women. Twenty (men = 10; women = 10) healthy and active participants completed four visits to the laboratory. The first and second sessions were used for sample characterization. In the third and fourth sessions, participants performed an incremental running test (started at 7 km.h -1 with increments of 1 km.h -1 at each 3-minute stage) under preferred music and non-music conditions. Blood lactate ([Lac]), heart rate (HR), and perceived exertion were measured by two scales (RPE Borg and the estimation of time limit ‒ ETL) during all tests, and the total time of effort (TT) was considered as performance. Individual curves of the “ intensity vs blood lactate ” analyzed by the bissegmentation method provide the iAT and the AUC of [Lac], HR, RPE Borg , and ETL before and after the iAT attainment were calculated. The iAT for men (non-music: 11.5±0.9km.h -1 vs music: 11.6±1.1km.h -1 ) and women (non-music: 9.8±0.7km.h -1 vs music: 9.7±0.7km.h -1 ) was not affected by music, and for both sexes, there was no difference between non-music and music conditions in all variables obtained at iAT. The AUC of all variables were not affected by music before the iAT attainment. However, [Lac], HR, and RPE Borg presented higher values of AUC after iAT for the female group with preferred music. This may be due to the fact that 70% of women have increased TT under music conditions. Overall, preferred music did not affect the iAT determination in an incremental running test. However, some physiological responses and perceived exertion after iAT of female subjects seems to be influenced by preferred music.
This study aimed to investigate the relationship between mechanical parameters from the Running-based Anaerobic Sprint Test (RAST2×17.5), agility performance from the Illinois Agility Test (IAT) and all-out 30-second tethered running (AO30) in college futsal athletes. It also investigates whether these protocols are capable of identifying differences between sexes. Twenty subjects were evaluated. The IAT was applied on a specific course and performance was considered as the total time (T.T). The RAST2×17.5 consisted of six maximum efforts in a shuttle exercise of 2x17.5 m per bout. The AO30 was conducted under maximal effort on a non-motorized treadmill. Maximum, mean and minimum power were determined for RAST2×17.5 and AO30. Mean power from RAST2×17.5 was inversely and significantly correlated to T.T regardless of sex (male: r=–0.76; p=0.010; female: r=–0.89; p=0.010). A similar association was noticed for maximum power for females (r=–0.94; p=0.001). The AO30 maximum and mean power were significantly correlated with T.T (male: r=–0.67; p=0.031 and r=–0.66; p=0.035, respectively; female: r=–0.64; p=0.046 and r=0.66; p=0.035, respectively). Maximum power from RAST2×17.5 and AO30 were significantly correlated (male: r=0.68; p=0.030; female: r=0.72; p=0.019). Our results reinforce the adoption of field-based tests like RAST2×17.5 and IAT for futsal, since significant relationships among these parameters and AO30 results were obtained. Moreover, these protocols differentiated male and female athletes by mechanical and agility parameters, proving their application under specific field evaluation.
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Ten healthy male individuals were randomly evaluated in two exercise sessions (with or without music during the tests). They were submited to an incremental running test (3-min stages; initial intensity equal to 7 km.h-1 and 1 km.h-1 increments; treadmill inclination equal to 1%). The music´s motivation were adressed by the Brunel Rating Music Inventory- 2, considering the most motivation on top of the playlist, and then yours subsequents. Anaerobic threshold intensity (iAnT), blood lactate concentration ([Lac]iAnT) and heart rate (HRiAnT) at anaerobic threshold intensity were considered as physiological parameters. Psychophysiological scales such as Perceived Exertion (PSEBorg), Perceived Effort (PSEFoster) and Estimation of Time Limit (ETL) were used for psychophysiological analyses. Time to exhaustion (T.T) was considered as performance parameter. No differences were found between iAnT (p=0.248), [Lac]iAnT (p=0.786), HRiAnT (p=1.000) an T.T (p=0.055). However, 70% of the sample presented better performance with asynchronous music was inserted (p=0.003). Significant differences were visualized for PSEBorg (AM= ;WM= ;0,042) and ETL (AM= ;WM= ;p=0.015). In sumary, for 70% of the evaluated sample asynchronous music exerted ergogenic effect on the physical performance in an incremental running protocol attenuating the psychophysiological responses without changing physiological parameters.
O objetivo desse estudo foi investigar o efeito da utilização da música assíncrona e da antecipação sobre as respostas fisiológicas (e.g. tempo de exaustão, frequência cardíaca, concentração lactacidêmica e saturação de O2) e psicofisiológicas (i.e. escalas de percepção subjetiva) em exercício exaustivo prescrito de forma individualizada com base na intensidade de limiar anaeróbio (iLAn). Foram avaliados doze indivíduos jovens (idade compreendida entre 18 e 26 anos) saudáveis e ativos do sexo masculino. Os participantes foram submetidos a cinco sessões de exercício sendo todas em cicloergometro. Na primeira sessão, os avaliados realizaram um protocolo incremental para a determinação da iLAn pela análise de bissegmentação das retas de regressão. De forma randomizada, mais quatro sessões contínuas e exaustivas em intensidade 20% a iLAn foram realizadas, mas adotando diferentes aplicações: i) esforço sem música; ii) esforço com música; iii) sem música e aplicação da antecipação e iv) mesma abordagem da sessão anteriormente descrita, mas com a adoção da música. Os resultados sugerem que apesar do efeito somatório entre a música e antecipação não modularem positivamente o desempenho físico, os mesmos parecem exercer efeito ergogênico quando aplicados de forma exclusiva.
O objetivo do presente projeto foi ampliar a especificidade do protocolo do Teste de Lactato Mínimo (TLM) ao futsal. Foram avaliados salonistas jovens (entre 17 e 25 anos) saudáveis, ativos, de nível universitário. Quatorze salonistas (Homens n=7; Mulheres n=7) foram submetidos a quatro sessões de avaliação. Na primeira, os participantes realizaram avaliações de caracterização (antropometria, hematócrito, somatotipo). De forma randomizada, o TLM foi conduzido em três subsequentes sessões (intervalo de 24-48 horas). A nova proposta (TLM NP) foi conduzida em duplicata, considerando três distintas fases: 1) aplicação do Illinois Agility Test (IAT) como indutor a hiperlactacidemia; 2) recuperação passiva de 8 minutos; 3) protocolo incremental em exercício vai-e-vem com distâncias comumente percorridas em esforços de alta intensidade por atletas (i.e. 13 metros). Para validação do TLM NP, comparamos a adequação do TLM ao futsal, sendo esse similar a nova proposta, a exceção da indução a hiperlactacidemia induzida pelo Running Anaerobic Sprint Test e as distâncias no protocolo incremental (i.e. 20 metros). Intensidade de lactato mínimo (iLacMin) foi considerada para comparação entre os protocolos e análise de reprodutibilidade. Baseado nos resultados apresentados, concluímos que a proposta original e TLM NP aqui proposto revertem distintas iLacMin. Contudo, esse parâmetro apresenta reprodutibilidade e ecologicamente respeita de maneira mais apropriada as demandas do futsal.
Resumo O objetivo desse estudo foi avaliar a potência e agilidade de jogadores univesitários de futsal em testes de laboratório e campo, investigando as correlações entre os parâmetros obtidos nessas diferentes condições. Foram avaliados vinte jogadores de futsal, nível universitário (10 homens e 10 mulheres, com idade 20 ± 2 e 21 ± 2 anos, respectivamente). O Running Anaerobic Sprint Test (RAST) foi conduzido em seis esforços de 35 m (vai-vem de 17,5 m) e o Illinois Agility Test (IAT) sob circuito específico, ambos realizados em quadra de futsal. Os parâmetros de potência em laboratório foram obtidos em teste all-out de 30 segundos (AO30), em corrida atada realizada em esteira não motorizada. O teste de Pearson foi utilizado para investigar as correlações obtidas por meio de testes de campo e laboratório. As potências máxima e média do RAST e a agilidade advinda do IAT foram significantemente correlacionadas às potências máxima e média observadas em teste aplicado em laboratório (AO30). Desse modo, a adoção do AO30 parecer ser significante para a avaliação de salonistas em laboratório, além da aplicação de testes condições de campo (RAST e IAT).
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