Fish Oil Supplementation Improves the Repeated-Bout Effect and Redox Balance in 20-30-Year-Old Men Submitted to Strength Training.

Herein, we investigated the effect of fish oil supplementation combined with a strength-training protocol, for 6 weeks, on muscle damage induced by a single bout of strength exercise in untrained young men. Sixteen men were divided into two groups, supplemented or not with fish oil, and they were evaluated at the pre-training period and post-training period. We investigated changes before and 0, 24, and 48 h after a single hypertrophic exercise session. Creatine kinase (CK) and lactate dehydrogenase (LDH) activities, plasma interleukin-6 (IL-6) and C-reactive protein (CRP) levels, and the redox imbalance were increased in response to the single-bout session of hypertrophic exercises at baseline (pre-training period) and decreased during the post-training period in the control group due to the repeated-bout effect (RBE). The fish oil supplementation exacerbated this reduction and improved the redox state. In summary, our findings demonstrate that, in untrained young men submitted to a strength-training protocol, fish oil supplementation is ideal for alleviating the muscle injury, inflammation, and redox imbalance induced by a single session of intense strength exercises, highlighting this supplementation as a beneficial strategy for young men that intend to engage in strength-training programs.

Fish oil supplementation improves the repeated-bout effect and redox balance in 20-30 year old men submitted to strength training

Herein, we investigated the effect of fish oil supplementation combined with a strength-training protocol, for 6 weeks, on muscle damage induced by a single bout of strength exercise in untrained young men. Sixteen men were divided into two groups, supplemented or not with fish oil, and they were evaluated at the pre-training period and post-training period. We investigated changes before and 0, 24, and 48 h after a single hypertrophic exercise session. Creatine kinase (CK) and lactate dehydrogenase (LDH) activities, plasma interleukin-6 (IL-6) and C-reactive protein (CRP) levels, and the redox imbalance were increased in response to the single-bout session of hypertrophic exercises at baseline (pre-training period) and decreased during the post-training period in the control group due to the repeated-bout effect (RBE). The fish oil supplementation exacerbated this reduction and improved the redox state. In summary, our findings demonstrate that, in untrained young men submitted to a strength-training protocol, fish oil supplementation is ideal for alleviating the muscle injury, inflammation, and redox imbalance induced by a single session of intense strength exercises, highlighting this supplementation as a beneficial strategy for young men that intend to engage in strength-training programs.

Efeito de diferentes intervalos de recuperação sobre a resistência de força em indivíduos de ambos os sexos / Effect of different rest intervals on strength resistance in both sexes

O objetivo deste estudo foi analisar o desempenho motor de homens e mulheres em diferentes intervalos de recuperação em séries múltiplas a 70% de 1-RM. Quatorze indivíduos, sete homens (21,5 ± 0,6 anos; 76,2 ± 2,5 kg; 176,4 ± 6,4 cm) e sete mulheres (19,6 ± 0,7 anos; 66,3 ± 2,1 kg; 163,1 ± 6,7 cm), executaram três séries a 70% de 1-RM no exercício supino em banco horizontal e extensão de perna, com intervalos de 60 e 90 s entre as séries. Anova fatorial identificou interação significante série vs. intervalo (F = 17,56; P < 0,001) e o efeito principal do exercício (F = 7,04; P < 0,021), sem diferenças entre os sexos (F = 0,17; P = 0,691). Os resultados sugerem que a queda de desempenho motor induzida por séries múltiplas a 70% de 1-RM é semelhante em homens e mulheres, independente dos intervalos de recuperação adotados entre as séries.

The objective of this study was to analyze the motor performance of men and women at different rest intervals in multiple sets at 70% 1-RM. Fourteen individuals, seven males (21.5 ± 0.6 years, 76.2 ± 2.5 kg, 176.4 ± 6.4 cm) and seven females (19.6 ± 0.7 years, 66.3 ± 2.1 kg, 163.1 ± 6.7 cm) performed three sets at 70% 1-RM in the bench press and leg extension, with intervals of 60 and 90s between the sets. The factorial ANOVA evidenced significant interaction of set vs. rest interval (F = 17.56, P < 0.001) and the main effect of exercise (F = 7.04, P < 0.021), without differences between the sexes (F = 0.17, P = 0.691). The results suggested that the reduction in motor performance induced by multiple sets at 70% 1-RM is similar in men and women, regardless of the rest intervals between the sets.

Lesões esportivas: um estudo com atletas do basquetebol bauruense / Sports injuries: a study with basketball athletes of Bauru city / Lesiones deportivas: un estudio con atletas de baloncesto de la ciudad de Bauru

Este estudo teve como objetivo identificar as principais lesões no basquetebol e suas incidências. Participaram do estudo vinte jogadores de basquetebol do sexo masculino com idade variando entre 13 e 15 anos. O instrumento utilizado foi o questionário e seus resultados mostraram que, dos atletas participantes do estudo, todos relataram algum tipo de lesão. Foram identificadas 26 lesões, sendo 13 nos membros inferiores (50 por cento) e 13 nos membros superiores (50 por cento). No joelho, as lesões mais frequentes foram a tendinite patelar - sete casos (53,85 por cento). Nos membros superiores, destacaram-se as entorses nos dedos das mãos - cinco casos (38,46 por cento). Com este estudo, percebemos a necessidade de se desenvolver um trabalho preventivo no intuito de diminuir a incidência dessas lesões.

This study aimed to identify key injuries in basketball and its impact. In the present study the participants were 20 male basketball players aged between 13 and 15 years. The instrument used was the questionnaire and its results showed that the athletes participating in the study, all reported some type of injury. 26 lesions were identified, of which 13 in the lower limbs (50 percent), 13 upper limbs (50 percent). With the knee injuries were the most frequent patellar tendinitis 7 cases (53.85 percent). In the upper limb are highlighted sprains of fingers with 5 cases (38.46). This study realized the need to develop a preventive work in order to reduce the incidence of these injuries.

Este estudio tuvo como objetivo identificar cuales son las principales lesiones que afectan a los jugadores de baloncesto y mostrar su incidencia. Participaron del estudio 20 baloncestistas, todos hombres de edades comprendidas entre 13 y 15 años. El instrumento utilizado en este trabajo fue un cuestionario. Los resultados demostraron que todos los participantes tuvieram algún tipo de lesión causada por el baloncesto. Fueron identificadas 26 lesiones de las cuales 13 ocurrieron en los miembros inferiores (50 por ciento) y 13 en los miembros superiores (50 por ciento). La lesión más frecuente en la rodilla fue la tendinitis patelar, con 7 casos (53,85 por ciento). En los miembros superiores destacaronse los esguinces en los dedos de las manos, con 5 casos (38,46 por ciento). Con este estudio fue posible percibir la necesidad del desarrollo de un trabajo preservativo buscando a la disminución de la incidencia de estas lesiones.