Effects of equal-volume resistance training with different training frequencies in muscle size and strength in trained men

Gentil, Paulo; Fisher, James; Steele, James; Campos, Mário Hebling; Silva, Marcelo Henrique; Paoli, Antonio; Gießing, Jürgen; Bottaro, Martim

doi:10.7717/peerj.5020

Cited by 28 publications

(42 citation statements)

References 35 publications

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“…Later, all image measurements and statistical analyses were performed by a second, blind researcher using non-sequential numbers. The choice of these muscle groups and the US parameters were based on the large amount of experimental studies investigating these muscle groups 3 , 5 , 6 , 20 , 21 .…”

Section: Methodsmentioning

confidence: 99%

“…This landmark was found to improve reliability 10 . The participants were evaluated in supine position with a 7.5 MHz scanning head placed on the skin perpendicular to the tissue interface 2 , 4 , 6 , 15 . They were asked to relax their limbs during assessment and a suitable amount of water-soluble transmission gel was used to ensure optimal image quality.…”

Section: Methodsmentioning

confidence: 99%

“…Indeed, it has been associated with physical fitness, muscle damage, and overall muscle quality 2 , 4 . In addition, muscle thickness (MT) has been frequently used to assess muscle damage induced by exercise and monitor resistance training interventions on hypertrophy outcomes 6 , 15 .…”

Section: Introductionmentioning

confidence: 99%

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Ultrasound imaging in women's arm flexor muscles: intra-rater reliability of muscle thickness and echo intensity

Vieira¹,

Siqueira²,

Júnior³

et al. 2016

Braz. J. Phys. Ther.

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BackgroundDifferent ultrasound parameters have been frequently used to assess changes associated with training, aging, immobilization, and neuromuscular diseases. However, an exploratory reliability analysis of the echo intensity (EI) and muscle thickness (MT) of the forearm flexors is scarce, especially in women.ObjectiveThe purpose of the present study was to determine the intra-rater reliability of MT and EI assessed by ultrasound in young women.MethodUltrasonographic MT and EI were acquired in the forearm flexors of 41 young women (22±2 yrs). Reliability was calculated using intraclass correlation coefficient (ICC2,1), standard error of measurement (SEM), coefficient of variation (CV), smallest detectable change (SDC), and Bland and Altman plot analysis.ResultsICC values for MT and EI were 0.88 (95% CI: 0.78-0.93). The SEM and CV values were lower than 10%. Bland and Altman analysis revealed that ultrasound mean differences were 0.27 mm (Limits of Agreement - LOA 95%: - 2.6 to 3.2 mm) and -0.09 a.u. (LOA 95%: - 10.9 to 10.7 a.u.).ConclusionMT and EI assessed by ultrasonography in young women appear to be reliable and may be used to monitor changes in muscle mass induced by strength training when these changes exceed the precision of ultrasound.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Ultrasound imaging in women's arm flexor muscles: intra-rater reliability of muscle thickness and echo intensity

Vieira¹,

Siqueira²,

Júnior³

et al. 2016

Braz. J. Phys. Ther.

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“…Numerous studies have been undertaken to provide insight into the differences between the frequency of training, [1][2][3][4][5][6] number of muscle groups exercised, 7,8 training volume, [9][10][11][12][13][14] rest intervals, [15][16][17] and velocity of the weight being lifted, 18 although many of these studies have focused on the untrained or novice recreational athlete. 1,3,9,16 In the untrained or novice subject, RT can produce substantial gains in a short period of exposure to a training protocol. Studies have shown that a great deal of muscle growth occurs in the initial weeks of training, 4,[19][20][21] primarily in neural adaptations but also in muscle hypertrophy.…”

mentioning

confidence: 99%

The Effectiveness of Frequency-Based Resistance Training Protocols on Muscular Performance and Hypertrophy in Trained Males: A Critically Appraised Topic

Kessinger¹,

Melton²,

Miyashita³

et al. 2020

Journal of Sport Rehabilitation

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Clinical Scenario: Manipulation of exercise variables in resistance training (RT) is an important component in the development of muscular strength, power, and hypertrophy. Currently, most research centers on untrained or recreationally trained subjects. This critically appraised topic focuses on studies that center on the well-trained subject with regard to frequency of training. Clinical Question: In well-trained male subjects, is there an association between RT frequency and the development of muscular strength and hypertrophy? Summary of Key Findings: Four studies met the inclusion criteria and were included for analysis. All studies showed that lower-frequency training could elicit muscular strength and hypertrophy increases. One study suggested that a higher frequency compared with a lower frequency may provide a slight benefit to hypertrophic development. One study reported a greater level of delayed onset muscle soreness with lower frequency training. The 4 studies demonstrate support for the clinical question. Clinical Bottom Line: Current evidence suggests that lower-frequency RT produces equal to greater improvements on muscular strength and hypertrophy in comparison to higher-frequency RT when volume is equated. The evidence is particularly convincing when lower-frequency RT is associated with a total-body training protocol in well-trained male subjects. Strength of Recommendation: There is moderate-to-strong evidence to suggest that lower-frequency RT, when volume is equated, will produce equal to greater improvements on muscular strength and hypertrophy in comparison to higher-frequency RT.

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“…www.vponline.com.br O papel da intensidade e do volume na prescrição do exercício e os impactos na prescrição nutricional A Introdução A discussão que relaciona as variáveis agudas do treinamento intensidade e volume vem, desde muito tempo, chamando a atenção da literatura científica e dos entusiastas envolvidos na rotina da ciência do treinamento físico 1,2 . Mais recentemente, em especial na última década, essa discussão tem se avolumado substancialmente, tendo em vista os interesses pessoais e as possibilidades de mercado, passando por questões fundamentais como as preferências pessoais, as necessidades particulares, a eficiência/eficácia dos métodos, as especificidades em questão, a taxa de adesão aos programas e as individualidades envolvidas [3][4][5][6][7][8][9][10][11] .…”

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O papel da intensidade e do volume na prescrição do exercício e os impactos na prescrição nutricional

Catanho¹

2019

Rev Bras Nutr Func

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O papel da intensidade e do volume na prescrição do exercício e os impactos na prescrição nutricional The role of intensity and volume in exercise prescription and the impacts on nutritional prescription Resumo O interesse acadêmico-social-profissional pelos efeitos da manipulação das variáveis agudas do treinamento, em especial a intensidade e o volume, tem se tornado cada vez mais evidente na literatura. Nesse contexto, o objetivo deste trabalho é traçar uma discussão dos efeitos adaptativos morfofuncionais quando da manipulação tanto da intensidade quanto do volume de treinamento, com enfoque nas capacidades de resistência e força muscular. A literatura tem reportado há algum tempo, no tocante ao treinamento de resistência, significativos efeitos morfofuncionais derivados tanto da manipulação da intensidade como do volume de treinamento, porém o apelo mais contemporâneo versa para a intensidade, uma vez que esta consegue gerar adaptações morfofuncionais de forma time-efficient. Destaca-se, entretanto, que a maior porcentagem de treinos, em periodizações voltadas às modalidades de endurance, prioriza o volume em detrimento da intensidade, sem perder a qualidade nos efeitos adaptativos desejados, em especial a biogênese mitocondrial, a angiogênese e a maior expressão das enzimas oxidativas. Em relação à força muscular, o volume de treinamento tem sido alvo de diversas investigações, uma vez que há uma relação dose-resposta ótima para cada sujeito em termos morfofuncionais. Quanto à intensidade dos treinos de força, o que se questiona é a real aplicação dessa variável na rotina, uma vez que a sua realização de fato depende, dentre outros, do histórico de treinos, da aderência, do dolo e dos objetivos dos sujeitos envolvidos. Nesse quesito, a literatura tem valorizado a intensidade quando os objetivos se voltam especificamente às adaptações na função, enquanto certa democracia literária tem sido encontrada quando os objetivos se voltam às adaptações morfológicas. Do ponto de vista nutricional, a intensidade dos esforços deve atrair a atenção para aspectos primordiais como os substratos das vias anaeróbicas, a função tamponante, a síntese proteica miofibrilar e a estimulação do sistema nervoso. Já o volume dos esforços, quando analisado do ponto de vista nutricional, necessita de especial atenção quanto ao poder antioxidante da dieta, a distribuição de todos os macronutrientes, a síntese proteica mitocondrial, a angiogênese e as adaptações oxidativas. Conclui-se, portanto, que dentro de um processo de preparação física, a despeito do objetivo morfofuncional e da capacidade física a ser considerada, é crucial manipular periodicamente as variáveis intensidade e volume, acreditando no amplo poder adaptativo desencadeado por esta Palavras-chave: Exercício físico, intensidade, volume, metabolismo energético, prescrição nutricional.

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Effects of equal-volume resistance training with different training frequencies in muscle size and strength in trained men

Cited by 28 publications

References 35 publications

Ultrasound imaging in women's arm flexor muscles: intra-rater reliability of muscle thickness and echo intensity

Ultrasound imaging in women's arm flexor muscles: intra-rater reliability of muscle thickness and echo intensity

The Effectiveness of Frequency-Based Resistance Training Protocols on Muscular Performance and Hypertrophy in Trained Males: A Critically Appraised Topic

O papel da intensidade e do volume na prescrição do exercício e os impactos na prescrição nutricional

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