Browsing by Author "Marques, Martim Francisco Bottaro"

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    Effects of horizontal and incline bench press on neuromuscular adaptations in untrained young men.
    (2020) Chaves, Suene Franciele Nunes; Rocha Júnior, Valdinar de Araújo; Encarnação, Irismar Gonçalves Almeida da; Cota, Hugo César Martins; Freitas, Eduardo D. S.; Coelho, Daniel Barbosa; Franco, Frederico Souza Lima Caldoncelli; Loenneke, Jeremy Paul; Marques, Martim Francisco Bottaro; Ferreira Júnior, João Batista
    The aim of the current study was to investigate the effects of horizontal and incline bench press as well as the combination of both exercises on neuromuscular adaptation in untrained young men. Forty-seven untrained men were randomly assigned to one of the three groups: 1) a horizontal bench press group (n= 15), 2) an incline bench press group (n= 15), and 3) a combination (horizontal + incline) group (n= 17). Training was conducted once a week for eight weeks, with equalized number of sets among groups. Muscle thickness, isometric strength and electromyography (EMG) amplitude of the pectoralis major were measured one week before and after the training period. There was no difference between groups for the change in horizontal bench press isometric strength (~ 10 kg increase, p=0.776) or incline bench press isometric strength (~ 11 kg increase, p=0.333). Changes in muscle thickness differed only in one of the three sites. The changes in the second intercostal space of the pectoralis major was greatest in the incline pressure group compared with the horizontal [mean difference (95% CI) of 0.62 (0.23, 1.0) cm, p=0.003] and combination groups [mean difference (95% CI) of 0.50 (0.14, 0.86) cm, p=0.008]. The change in EMG amplitude following training differed between groups in only one out of the four sites. The present results indicate that strength and conditioning professionals might consider that horizontal and incline bench press exercises, or a combination of both exercises can render similar change in general strength.
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    Effects of partial-body cryotherapy (− 110 °C) on muscle recovery between high-intensity exercise bouts.
    (2014) Ferreira Júnior, João Batista; Marques, Martim Francisco Bottaro; Soares, Saulo Rodrigo Sampaio; Vieira, Carlos Alexandre; Cleto, V. A.; Cadore, Eduardo Lusa; Coelho, Leonardo Gomes Martins; Simões, Herbert Gustavo; Brown, L. E.
    The aim of this study was to evaluate the effects of a single partial-body cryotherapy bout between training sessions on strength recovery. 12 young men (23.9 ± 5.9 years) were randomly exposed to 2 different conditions separated by 7 days: 1) Partial-body cryotherapy (subjects were exposed to 3 min of partial-body cryotherapy at − 110 °C between 2 high-intensity training sessions); 2) Control (subjects were not exposed to partial-body cryotherapy between 2 high-intensity training sessions). Subjects were exposed to partial-body cryotherapy after the first training session. The 2 knee extension highintensity training sessions were separated by a 40-min rest interval. Knee extension training consisted of 6 sets of 10 repetitions at 60 °.s − 1 for concentric actions and 6 sets of 10 at 180.s − 1 for eccentric actions. The decrease in eccentric peak torque and total work was significantly (p < 0.05) less after partial-body cryotherapy (5.6 and 2 %, respectively) when compared to control (16 and 11.6 %, respectively). However, the decrease in concentric peak torque and total work was not different (p > 0.05) between partial-body cryotherapy (9.4 and 6.5 %, respectively) and control (7.5 and 5.2 %, respectively). These results indicate that the use of partial-body cryotherapy between-training sessions can enhance eccentric muscle performance recovery.
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    Respostas cardiovasculares agudas de três protocolos de exercício resistido em idosas.
    (2009) Silva, Rodrigo Pereira da; Novaes, Jefferson da Silva; Oliveira, Ricardo Jacó de; Camilo, Flávio de Jesus; Marques, Martim Francisco Bottaro
    As respostas cardiovasculares agudas foram comparadas entre três diferentes protocolos de treinamento resistido de alta velocidade de contração muscular em mulheres idosas destreinadas. Doze voluntarias, aparentemente saudáveis (62.6 } 2,9 anos), realizaram três diferentes protocolos no supino horizontal (SH) e no leg press 45o (LP). Todos os protocolos envolveram três series de 10 repeticoes realizados com uma carga de 10RM e 2 minutos de recuperacao entre as series. O protocolo continuo consistiu em 10 repeticoes, com nenhuma pausa entre as repeticoes. Os protocolos descontinuos foram realizados com uma pausa de cinco (PD5) ou 15 (PD15) segundos, entre a quinta e sexta repeticoes. Frequencia cardiaca (FC), pressao arterial sistolica (PAS) e duplo produto (DP) foram avaliados no repouso e ao final de todas as series nos exercicios. ANOVA fatorial foi usada para comparar as respostas cardiovasculares entre os diferentes protocolos. Comparado com o repouso, FC, PAS e DP foram respectivamente 22.3%, 23.2% e 51.2% (p < 0.05) maiores no exercício SH e 41.7%, 43.0% e 102.9% (p < 0.05) maiores no exercicio LP, apos a terceira serie, em todos os protocolos. FC e DP foram 5.6% e 8.2% (p < 0.05), respectivamente, menores no DP5 e DP15 comparado com o PC, no exercicio SH. A FC, PAS e DP foram 5.2%, 8.0% e 14,8% ,respectivamente, menores no DP5 comparado com o PC, no exercicio LP. Portanto, parece que o exercicio resistido de alta velocidade descontinuo tem uma menor demanda cardiovascular do que exercicio resistido continuo em mulheres idosas.
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    Respostas neuromusculares e metabólicas do método de treinamento de força FST-7 em homens treinados.
    (2020) Padilha, Ubiratan Contreira; Silva, Rodrigo Pereira da; Vieira, Amilton; Kobayashi, Lúcia; Marques, Martim Francisco Bottaro
    O objetivo deste estudo foi avaliar as respostas agudas neuromusculares e metabólicas do método de treinamento de força (TF) FST-7. Para tal, 10 homens experientes em TF foram submetidos a três protocolos experimentais. 1) FST-7 (sete séries de 10 repetições de extensão isocinética de joelho com 30 s de intervalo entre as séries, incluindo 20 - 25 s de alongamento do quadríceps); 2) Controle (CON, sete séries de 10 repetições de extensão isocinética de joelho com 30 s de intervalo entre as séries, sem alongamento entre as séries); e 3) Tradicional (TRAD, sete séries de 10 repetições de extensão isocinética de joelho com 120 s de intervalo entre as séries, sem alongamento entre as séries). O trabalho total do TRAD (12.160 ± 2.200 J) foi maior (p < 0,05) que o FST-7 (9.361 ± 1.714 J) e CON (10.730 ± 2.360 J), CON também produziu trabalho total maior que FST-7 (p < 0,05). A queda no trabalho entre as séries (índice de fadiga) foi maior (p < 0,05) no FST-7 (38,5 ± 13,4%) em comparação ao CON (29,0 ± 10,9%) e TRAD (12,0 ± 10,4%). A espessura muscular e o lactato sanguíneo aumentaram significativamente (p < 0,05), no entanto sem diferença entre os três protocolos (p>0,05). Estes resultados sugerem que o FST-7 apresenta respostas metabólicas similares aos métodos CON e TRAD, no entanto o estresse mecânico imposto pelos métodos TRAD e CON foram superiores ao FST-7.