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Up to 75% of marathon runners ingest non-steroidal anti-inflammatory drugs (NSAIDs) during competition. Despite the doubt whether or not they contribute to performance, the effect of NSAID in endurance sports is unclear. We evaluated the effect of ibuprofen (IBU) use on oxidative stress, muscle damage, physical performance, and vertical jump of runners participating in a 42-km-trail running. The sample consisted of 12 men randomly divided into 2 groups: a placebo group (placebo) and an ibuprofen group (IBG). A 400-mg IBU capsule was administered to the IBG 15 min prior to the start of the trial and during the course after 5 h. In the intergroup analysis, placebo 70.1% increase (p < 0.0001; Cohen's d = 4.77) of the thiobarbituric acid reactive substances (TBARS); the IBG exhibited a 31.46% increase of the sulphhydryl groups (SH) (p = 0.024, Cohen's d = 0.27), 55% of squat jump (SJ) (p < 0.01; Cohen's d = 1.41) with no significant effect on creatine kinase (CK), pace, speed, and finish time. In summary, IBU had positive evidence on oxidative stress and muscle fatigue, but had no effect on physical performance and muscle damage.

Background: Strength training is a complex task, as it requires a combination of many variables. In paralympic powerlifting (PP) asymmetries for the evaluation of activation, and static force indicators have been increasingly studied. Objective: To investigate the asymmetries in the strength and muscle activation indicators, before and after a training session of PP athletes. Methodology: Twelve elite athletes from the PP participated in the study, and asymmetry was evaluated through surface electromyography (sEMG) and static strength indicators. Evaluations were made before and after a protocol of five series of five repetitions (5 × 5), with 80% of 1-Maximum Repetition (1RM). Results: In the pectoral muscles, there were differences in the non-dominant limbs between the before and after in the sEMG. There were differences in the pectoralis muscle in the non-dominant limb between moments before (110.75 ± 59.52%) and after (130.53 ± 98.48%, p < 0.001), and there was no difference in triceps activation. In the Maximum Isometric Strength (MIF), there was a difference in the non-dominant limb between before (710.36 ± 129.36) and after (620.27 ± 69.73; p < 0.030). There was a difference before in the dominant (626.89 ± 120.16; 95% CI 550.55–703.24) and non-dominant (710.36 ± 129.36; p = 0.011) limbs. There was no difference in time to MIF. Conclusion: PP athletes showed small levels of asymmetry before and after training, and adaptation to training tends to promote fewer asymmetries.

BACKGROUND The sticking region is considered an intervening factor in the performance of the bench press with high loads. OBJECTIVE To evaluate the strength indicators in the sticking point region in Powerlifting Paralympic athletes. METHODS Twelve Brazilian Powerlifting Paralympic athletes performed maximum isometric force (MIF), rate of force development (RFD), time at MIF, velocity, dynamic time in sticking, and surface electromyography in several distances from the bar to the chest. RESULTS For velocity, there was a difference between the pre-sticking and sticking region (1.98 ± 0.32 and 1.30 ± 0.43, p = 0.039) and dynamic time between the pre-sticking and the sticking region (0.40 ± 0.16 and 0.97 ± 0.37, p = 00.021). In static test for the MIF, differences were found between 5.0 cm and 15.0 cm (CI 95% 784; 1088; p = 0.010) and between 10.0 cm and 5.0 cm (CI 95% 527; 768; p < 0.001). Regarding the RFD, differences were found (CI 95% 938; 1240; p = 0.004) between 5.0 cm and 25.0 cm and between 10.0 cm and 25.0 cm (CI 95% 513; 732; p < 0.001). In relation to time, there were differences between 5.0 cm and 15.0 cm (CI 95% 0.330; 0.515; p < 0.001), 5.0 cm, and 25.0 cm (CI 95% 0.928; 1.345; p = 0.001), 10.0 cm and 15.0 cm (p < 0.05) and 15.0 cm and 25.0 cm (p < 0.05). No significant differences were observed between the muscles in electromyography, although the triceps showed the highest muscle activation values. CONCLUSIONS The maximum isometric force, rate of force development, time, velocity, and dynamic time had lower values, especially in the initial and intermediate phases in the sticking region.

Background: Spinal cord injury (SCI) is a condition that affects the central nervous system, is characterized by motor and sensory impairments, and impacts individuals’ lives. The objective of this study was to evaluate the effects of resistance training on oxidative stress and muscle damage in spinal cord injured rats. Methodology: Forty Wistar rats were selected and divided equally into five groups: Healthy Control (CON), Sham (SHAM) SCI Untrained group (SCI-U), SCI Trained group (SCI- T), SCI Active Trained group (SCI- AT). Animals in the trained groups were submitted to an incomplete SCI at T9. Thereafter, they performed a protocol of resistance training for four weeks. Results: Significant differences in muscle damage markers and oxidative stress in the trained groups, mainly in SCI- AT, were found. On the other hand, SCI- U group presented higher levels of oxidative stress and biomarkers of LDH and AST. Conclusion: The results highlight that resistance training promoted a decrease in oxidative stress and a significative response in muscle damage markers. Keywords: spinal cord injury; resistance training; oxidative stress; muscle damage

The objective of the present study was to evaluate the effect of pre-exercise hyperhydration with sodium (PEHS), on the state of hydration and performance in runners of a 10K. Ten male runners (age 40.5 ± 9.7 yrs, weight 72.5 ± 8.4 kg, body fat 18.8 ± 4.5%) participated in the study and performed 10 km of street running under two different forms of prehydration: pre-exercise hydration (PEH), consisting of water intake ad libitum, and pre-exercise sodium hyperhydration (PEHS), consisting of sodium ingestion (12 mg of sodium for each 5 mL of water) diluted 1 h before the test. The variables evaluated were heart rate (HR), body temperature (BT), body mass (BM), blood pressure (BP), relative dehydration (RD), absolute dehydration (AD), total ingested water (TH2OING), degree of dehydration (DD), sweating rate (SR), specific gravity of urine (SGU), urine pH, and performance time (PT). There was no difference between intervention groups in the variables HR, BT, BM, BP, SGU, urine pH, and PT. RD (0.76 ± 0.41 kg vs. 1.16 ± 0.43 kg; Cohen’s d = 0.95; p = 0.042); AD (0.63 ± 0.36 kg vs. 0.99 ± 0.43 kg; Cohen’s d = 0.90; p = 0.038); DD (0.63 ± 0.52% vs. 1.35 ± 0.56%; Cohen’s d = 1.33; p = 0.009); SR (2255.03 ± 1297.25 mL vs. 3550.06 ± 1527.35 mL; Cohen’s d = 0.91; p = 0.048) were lower in the state of PEHS. PEH presented greater TH2OING (0.16 ± 0.12 mL vs. 0.34 ± 0.41 mL; Cohen’s d = 0.59; p = 0.008). It was concluded that PEHS produces better hydration in runners during long distance running.

Objective: To determine the students’ coronary risk at a public university in Brazil, segmented by gender and age. Methods: We conducted a cross-sectional study in 148 students of Universidade Federal de Viçosa – Campus Florestal, with a mean age of 22.32 ± 5.15 years. All evaluated the Coronary Risk Table questionnaire of Michigan Heart Association (MHA). The data were analyzed descriptively. The Mann-Whitney test was used to compare coronary risk between genders and the Kruskal-Wallis test for comparison between age groups, both with a significance level of p <0.05. We calculated the odds ratio (OR) between genders, with a confidence interval of 95%. Results: The coronary risk obtained was "below average" (17.32 ± 4.53 points), according to the classification of the MHA. Men showed chance of developing coronary risk 6.04 (from 1.09 to 43.88, p= 0.014) times higher than women. The coronary risk increased along with increasing age. Separately, the most prevalent risk factors were physical inactivity (53.38%), heredity (52.03%), overweight (37.84%) and hypercholesterolemia (13.51%). Conclusion: The risk of coronary students was classified as "below average", being higher among men and rising as individuals age, Objetivo: Determinar o risco coronariano em estudantes de uma universidade pública do Brasil, segmentado por sexo e faixa etária. Métodos: Realizou-se um estudo transversal em 148 estudantes dos dez cursos superiores da Universidade Federal de Viçosa – Campus Florestal, com idade média de 22,32 ± 5,15 anos. Todos os avaliados responderam ao questionário RISKO da Michigan Heart Association (MHA). Os dados foram submetidos à análise descritiva. O teste Mann-Whitney foi utilizado para comparação do risco coronariano entre os sexos e o teste de Kruskall-Wallis, para comparação entre as faixas etárias, ambos com nível de significância de p <0,05. Foi calculada a razão de chances (OR) entre sexos, com um intervalo de confiança de 95%. Resultados: O risco coronariano obtido foi “abaixo da média” (17,32 ± 4,53 pontos), segundo classificação da MHA. Os homens apresentaram chance de desenvolvimento do risco coronariano 6,04 (1,09–43,88; p= 0,014) vezes maior que as mulheres. O risco coronariano aumentou conjuntamente com o aumento da idade. Isoladamente, os fatores de risco mais prevalentes foram: sedentarismo (53,38%), hereditariedade (52,03%), excesso de peso (37,84%) e hipercolesterolemia (13,51%). Conclusão: O risco coronariano dos estudantes foi classificado como “abaixo da média”, sendo maior entre os homens e elevando-se à medida que os indivíduos envelhecem

The objective of the present study was to evaluate the effect of pre-exercise hyperhydration with sodium (PEHS), on the state of hydration and performance in runners of a 10K. Ten male runners (age 40.5 ± 9.7 yrs, weight 72.5 ± 8.4 kg, body fat 18.8 ± 4.5%) participated in the study and performed 10 km of street running under two different forms of prehydration: pre-exercise hydration (PEH), consisting of water intake ad libitum, and pre-exercise sodium hyperhydration (PEHS), consisting of sodium ingestion (12 mg of sodium for each 5 mL of water) diluted 1 h before the test. The variables evaluated were heart rate (HR), body temperature (BT), body mass (BM), blood pressure (BP), relative dehydration (RD), absolute dehydration (AD), total ingested water (TH2OING), degree of dehydration (DD), sweating rate (SR), specific gravity of urine (SGU), urine pH, and performance time (PT). There was no difference between intervention groups in the variables HR, BT, BM, BP, SGU, urine pH, and PT. RD (0.76 ± 0.41 kg vs. 1.16 ± 0.43 kg; Cohen’s d = 0.95; p = 0.042); AD (0.63 ± 0.36 kg vs. 0.99 ± 0.43 kg; Cohen’s d = 0.90; p = 0.038); DD (0.63 ± 0.52% vs. 1.35 ± 0.56%; Cohen’s d = 1.33; p = 0.009); SR (2255.03 ± 1297.25 mL vs. 3550.06 ± 1527.35 mL; Cohen’s d = 0.91; p = 0.048) were lower in the state of PEHS. PEH presented greater TH2OING (0.16 ± 0.12 mL vs. 0.34 ± 0.41 mL; Cohen’s d = 0.59; p = 0.008). It was concluded that PEHS produces better hydration in runners during long distance running.

This study aimed to analyze the determinants (demographic indicators / health perception, socioeconomic and motivational) of adherence and dropout from personal training programs. The convenience sample was comprised for adults of both genders, coming from health clubs of the Pelotas-Brazil city, that offering personalized training programs, and include 100 practitioners and 42 dropouts. It was measured the variables gender, age, ethnicity, body mass index, smoking, self-rated health, marital status, and socioeconomic status. To assess the motivation, we used the Inventory Motivation to Regular Physical Activity, having noticed that the majority of practitioners and dropouts of the personalized training were young women of high socioeconomic status. The dimensions considered most motivating to practice of personalized training were: "Stress Control", "Health", "Aesthetics" and "Pleasure". On the other hand, the most prevalent reasons for dropout were the "Lack of Time" and the "Lack of Motivation" for the practice., Este estudo pretendeu analisar as determinantes (demográficas, indicadores/ perceção de saúde, socioeconómicas e motivacionais) da adesão e desistência de programas de treino personalizado. Fizeram parte da amostra de conveniência adultos de ambos os géneros, oriundos de academias da cidade de Pelotas-Brasil, que ofereciam programas de treinos personalizados, sendo100 praticantes e 42 desistentes. Foram medidas as variáveis género, idade, cor da pele, índice de massa corporal, tabagismo, autoperceção de saúde, situação conjugal e nível socioeconómico. Para avaliar a motivação, foi utilizado o Inventário de Motivação à Prática Regular de Atividade Física, constatando-se que a maioria dos praticantes e desistentes de treino personalizado foram mulheres jovens, de nível socioeconómico elevado. As dimensões consideradas como mais motivadoras para a prática do treino personalizado foram: “Controle de Estresse”, “Saúde”, “Estética” e “Prazer”. Por outro lado, os motivos mais prevalentes para desistência foram a “Falta de Tempo” e a “Falta de Motivação” para a prática., Este estudio pretendió analizar los determinantes (demográficos, indicadores/ percepción de salud, socio-económicos y motivacionales) la adhesión y abandono de programas de entrenamiento personalizado. Fueron parte de muestra de conveniencia adultos de ambos sexos, provenientes de gimnasios la ciudad de Pelotas-Brasil, que ofrecían programas de entrenamientos personalizados, siendo100 practicantes y 42 abandonos. Se midieron las variables sexo, edad, color de piel, índice de masa corporal, tabaquismo, auto percepción de salud, situación conyugal y nivel socioeconómico. Para valorar la motivación se utilizó el Inventario de Motivación para Práctica Regular de Actividad Física, constatándose que la mayoría de los practicantes y abandonos de entrenamiento personalizado eran mujeres jóvenes, de nivel socioeconómico alto. Las dimensiones consideradas más motivadoras para práctica de entrenamiento personalizado fueron: “Control de Estrés”, “Salud”, “Estética” y “Placer”. Por otro lado, los motivos más relevantes para el abandono la práctica de actividad física fueron Falta de Tiempo y Falta de Motivación.

A ergonomia pode ser definida como uma ciência do trabalho que analisa a maneira mais confortável e bem-sucedida para realização das atividades. O presente estudo teve como objetivo avaliar as condições ergonômicas em postos de trabalho dos funcionários do setor de transporte e manuseio de cargas de um supermercado na cidade de Cataguases-MG. Foram entrevistados quatorze (14) colaboradores do sexo masculino, sendo oito (8) transportadores de produtos para o estoque e seis (6) repositores de mercadorias. Dados da amostra (23 ± 5,4 anos, 79,6 ± 8,1 kg, 170 ± 5,5 cm, 27,1 ± 1,66 kg/cm²). A coleta de dados foi realizada através de observação e aplicação de um checklist adaptado de Couto para verificação da ergonomia relacionada às funções dos colaboradores de um modo geral e consequentemente os riscos que podem prejudicar a saúde do trabalhador. Os resultados obtidos revelam a necessidade de um programa de ações integradas, que atuem sistematicamente em vários fatores que definem o trabalho humano: a organização do trabalho, a conscientização das pessoas, a conscientização e esclarecimento da alta administração da empresa, adequação do ambiente físico e a participação dos trabalhadores na educação ergonômica. ABSTRACT Analise de transporte manual de carga em um supermercado na cidade de Cataguase-MGThe present study aimed to evaluate ergonomic conditions in workstations of sections of Transport and cargo handling from a supermarket in Cataguases-MG city. We interviewed 14 male employees, which are 8 carries of products to stock merchandise and 6 stockers, sample data (23 ± 5.4 years, 79.6 ± 8.1 kilogram, 1.7 ± 5.5 centímeter, 27.1 ± 1.66 kilogram/centimeter²). Data collection was conducted through observation and application of a checklist adapted from Couto for verification of ergonomics in general and consequently the risks that could prejudice the health of the worker. The results show the need of a program of integrated actions, acting systematically on various fact

A avaliação da capacidade cardiorrespiratória nos esportes é uma prática muito comum para estabelecer níveis de condicionamento e poder melhorá-los. Avaliação essa que deve ser realizada através de testes específicos das modalidades onde possam refletir as adaptações ocorridas durante o treinamento permitindo ajustes nos programas de treino. Assim este estudo teve como objetivo avaliar o consumo máximo de oxigênio em jogadores de voleibol profissionais comparando com as diferentes posições de jogo dos atletas. Para o estudo foram analisados 25 atletas (idade = 23,13 ± 5,33 anos, peso = 83,3 ± 4,9 kg, altura = 1,93 ± 6,3 cm e gordura = 8,13 ± 3,17 % de gordura corporal). Os atletas foram divididos em 5 grupos separados por posição: (LI) líbero, (L) levantador, (OP) oposto de rede, (M) meio de rede, (P) ponta de rede. O Vo2 máx dos atletas foi determinado em esteira ergométrica através de análise direta. Para análise dos dados foi utilizada uma ANOVA, com posterior aplicação de teste complementar de Bonferroni t-teste. Para toda a análise estatística foi adotado o coeficiente de significância p < 0,05. Os resultados demonstraram que não se apresentou diferenças significativas de VO2 máx entre os grupos de atletas e suas posições especificas de jogo (L) Levantador, (LI) Líbero, (OP) Oposto de rede, (M) Meio de rede e os jogadores de (P) Ponta. Acreditamos que isso se deve por não existir treinamento aeróbio diferenciado entre as posições dos jogadores e por estes realizarem ações parecidas no decorrer de jogo não havendo grandes diferenças na movimentação destes atletas no terreno de jogo durante as partidas ou treinamentos. ABSTRACT Maximal oxygen uptake volleyball players: Comparison between playing positionsThe evaluation of cardiorespiratory fitness in sports is a very common practice to establish fitness levels and can improve them. Which assessment should be carried out through specific testing modalities where they can reflect the adaptations that occur during t

Comparison of ascending and descending pyramid methods in increasing muscle strengthThe objective of this study was to compare the increase of force starting from the application of the training method known as pyramid, which is separated in ascending and descending. 22 individuals participated in the study (Group A = 22,5 ± 4,2 years; 170,8 ± 0,1cm; 72,64 ± 12 Kg; Group B = 21,70 ± 4,4 years; 172,4 ± 0,1; 71,80 ± 5,7Kg), with at least 06 (six) months of physical practice of resisted activities, which worked the two methods of pyramidal work, in a different way, being the individuals properly registered in academy in the municipal district of Miracema-RJ. The groups were submitted to the familiarization and subsequent application of the test of 1RM, in order to have knowledge of their limits of maximum force and starting from then they were submitted to the training protocol, being the intensity for the work of ascending pyramid of 70%, 75%, 80% and 85% of 1 RM and with the descending pyramid an intensity of 85%, 80%, 75% and 70%. At the end of the training period the groups were revalued, being submitted again to the test of 1RM in order to measure the real earnings in the method of applied training. The use of techniques of the Descriptive Statistics had in view to characterize the universe sample researched. The inferential analysis was made initially by the test Shapiro-Wilk to verify the normality and homogeneity for the test (Bartlett criterion). It was used (ANOVA) to compare the level of force in each exercise for repeated measures (one-way), following by a post-hoc of Tuckey. The data indicates that the methods ascending and descending pyramids do not present s acute effects differentiated in relation to the increase of force., O objetivo deste estudo foi comparar o aumento de força a partir da aplicação do método de treinamento conhecido como pirâmide, que se divide em crescente e decrescente. Participaram do estudo 22 indivíduos (Grupo A = 22,5 ± 4,2 anos; 170,8 ± 0,1cm; 72,64 ± 12 Kg; Grupo B = 21,70 ± 4,4 anos; 172,4 ± 0,1; 71,80 ± 5,7Kg), com no mínimo 06 (seis) meses de prática de atividades física resistida, os quais trabalharam os dois métodos de trabalho piramidal, de forma distinta, estando os indivíduos devidamente matriculados em academia no município de Miracema-RJ. Os grupos foram submetidos à familiarização e posteriormente à aplicação do teste de 1RM, a fim de ter conhecimento de seus limites de força máxima e a partir de então foram submetidos ao protocolo de treinamento, sendo a intensidade para o trabalho de pirâmide crescente de o 70%, 75%, 80% e 85% de 1 RM e com o método decrescente a intensidade de 85%, 80%, 75 % e 70%. Ao final do período de treinamento os grupos foram reavaliados, sendo submetidos novamente ao teste de 1RM a fim de mensurar os ganhos reais no método de treinamento aplicado. O emprego de técnicas da Estatística Descritiva visou caracterizar o universo amostral pesquisado. A análise inferencial foi feita inicialmente pelo teste Shapiro-Wilk para verificar a normalidade e homogeneidade pelo teste (Bartlett criterion). Para comparar o nível de força em cada exercício foi utilizado uma (ANOVA) para medidas repetidas (one-way), seguido de um post-hoc de Tuckey. Os dados indicam que os métodos pirâmide crescente e decrescente não apresentam efeitos agudos diferenciados em relação ao aumento de força.

The physical activity practice and the physical fitness performance and health in physical education students in evening course in private institution in a city of Minas GeraisThis study aimed to determine the level of physical activity and its reflection in physical fitness and health of students of evening classes of Physical Education in a private institution in a city of Minas Gerais. The sample consisted of 54 students (19 men and 35 women), volunteers and enrolled in the institution, characterized by individuals under the age of 26.20 years (SD = 8.35), height of 167,46cm (SD = 8.49) and weight 63,45kg (SD = 12.06). To evaluate the level of physical activity, it was used the international physical activity questionnaire (IPAQ). As a determinant of health-related physical fitness, we used the average of the individual results obtained in fat percentage tests (7 folds of Pollock), flexibility (Wells), muscle strength (handgrip), muscular endurance (test abdominal - 1 minute) and aerobic capacity (12 minutes of running). Data analysis showed the following results: there was a predominance of individuals categorized as very active and active (85.2%), compared to irregularly active (14.8%). Already with regard to physical fitness and health, examine each of the components the results indicate that: 57.4% (n = 31) of academics have a fat percentage proper to health, about 51.9% (n = 28) had trunk flexibility levels satisfactory, 48.1% (n = 26) showed good levels of strength, 81.5% (n = 44) have high levels of muscular endurance and 55.6% (n = 30 ) fall into a range of cardio respiratory fitness beneficial to health. Thus, we can conclude that more than half of the students are with good levels of physical activity, the result also found on the physical fitness and health, which most scholars meet high levels, with the exception of force. Analyzing percentage although both data presented mostly high percentages, when analyzed through the Pearson correlation test, Sp, O presente estudo teve como objetivo verificar o nível de atividade física e seu reflexo na aptidão física relacionada à saúde dos discentes do curso noturno de Educação Física de uma instituição privada de uma cidade de Minas Gerais. A amostra foi composta por 54 discentes (19 homens e 35 mulheres), voluntários e regularmente matriculados na instituição, caracterizando-se por indivíduos com idade de 26,20 anos (DP=8,35), estatura de 167,46cm (DP=8,49) e peso de 63,45kg (DP=12,06). Para avaliação do nível de atividade física, foi utilizado o questionário internacional de atividades físicas (IPAQ). Como determinante da aptidão física relacionada à saúde, usou-se a média dos resultados individuais obtidos nos testes de percentual de gordura (7 dobras de Pollock), flexibilidade (banco de Wells), força muscular (dinamometria manual), resistência muscular localizada (teste de abdominal – 1 minuto) e capacidade aeróbica (corrida de 12 minutos). A análise dos dados evidenciou os seguintes resultados: houve uma predominância de indivíduos categorizados como muito ativos e ativos (85,2%), em relação aos irregularmente ativos (14,8%). Já no tocante à aptidão física relacionada à saúde, ao analisar cada um dos componentes os resultados indicam que: 57,4% (n=31) dos acadêmicos apresentam um percentual de gordura adequado a saúde, cerca de 51,9% (n=28) apresentaram níveis de flexibilidade de tronco satisfatórios, 48,1%(n=26) apresentam bons níveis de força, 81,5% (n=44) possuem elevados níveis de resistência muscular localizada e 55,6% (n=30) se enquadram em uma faixa de aptidão cardiorrespiratória benéfica a saúde. Com isso, pode-se concluir que mais da metade dos discentes estão com níveis bons de atividade física, resultado também encontrado quanto à aptidão física relacionada à saúde, na qual a maioria dos acadêmicos se encontra com altos níveis, com exceção da força. Analisando percentualmente apesar de ambos os dados apresentarem em sua maioria altas porcentagens, quando a

Difference in maximum number of repetitions performed by practitioners of Jiu-Jitsu in bench press horizontal using intervals between seriesThe interval is relevant variable resistance training, being quite important adequately implemented during the training period in which the goal is maximum strength gains. The aim of the study is to evaluate the use of 90% of 1-RM as the training zone for increased maximum force to investigate the effects of two intervals (2:5 minutes) the maximum number of repetitions performed over three series in supine horizontal. As you examine the study, the maximum number of repetitions performed under each series, regardless of the time interval: 1st series (2 min.: 5.9 ± 1.0 repetitions; 5 min.: 6.3 ± 1, 2 repetitions), grade 2 (2 min.: 3.9 ± 1.1 repetitions; 5 min.: 4.8 ± 1.4 reps) and grade 3 (2 min.: 2.8 ± 0.9 repetitions; 5 min.: 3.5 ± 1.4 repetitions). The total volume of repetitions achieved shown lower with 2 min. interval (12.6 ± 2.6 repetitions) compared to 5 min. (14.6 ± 3.6 repetitions). It was found that the 5-minute interval provided better recovery between sets of horizontal supine than an interval of 2 minutes., O intervalo é uma relevante variável do treinamento resistido, sendo bastante importante sua adequada aplicação durante o período de treinamento em que o objetivo são ganhos de força máxima. O objetivo do estudo foi avaliar a utilização de 90% de 1-RM como zona de treinamento para aumento da força máxima e verificar o efeito de dois intervalos (2 e 5 minutos) no número máximo de repetições executados ao longo de três séries no supino horizontal. Conforme se verificará no estudo, o número de repetições máximas se apresentou menor a cada série, independente do tempo de intervalo: 1ª série (2 min.: 5,9 ± 1,0 repetições; 5 min.: 6,3 ± 1,2 repetições), 2ª série (2 min.: 3,9 ± 1,1 repetições; 5 min.: 4,8 ± 1,4 repetições) e 3ª série (2 min.:2,8 ± 0,9 repetições; 5 min.: 3,5 ± 1,4 repetições). O volume total de repetições alcançadas se apresentou menor com 2 min. de intervalo (12,6 ± 2,6 repetições) quando comparado a 5 min. (14,6 ± 3,6 repetições). Verificou-se que o intervalo de 5 minutos proporcionou uma melhor recuperação entre as séries de supino horizontal do que com intervalo de 2 minutos.