Determination and comparison of time under tension required to perform 8, 10 and 12-RM loads in the bench press exercise

Silva, Jurandir Baptista da; Lima, Vicente Pinheiro; Paz, Gabriel Andrade; Oliveira, Caroline Reis de; D’urso, Francisco; Nunes, Rodolfo de Alkmim Moreira; Castro, Juliana Brandão Pinto de; Vale, Rodrigo Gomes de Souza

doi:10.1515/bhk-2016-0022

Cited by 8 publications

(12 citation statements)

References 24 publications

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“…This study improved upon the methods of Lacerda et al 91 because effort was matched between conditions as every set was performed to momentary muscular failure. Thus, there is agreement in the current literature that metabolic stress increases with TUT 66 67 68 69 70 71 . Moreover, when TUT is matched, metabolic stress is greater under conditions where more repetitions are performed per set (e.g., 20 vs. 10 reps) and faster/traditional tempos (e.g., 3 vs. 6 sec) are used (91, 92).…”

Section: Applications Of Rt With High-tutsupporting

confidence: 63%

“…Regardless of the exact mechanisms ( Fig. 1 ), there is evidence that lactate accumulation is associated with the activation of mitochondrial biogenesis [50–55; 61–63] and that blood lactate has a positive, linear relationship with TUT during sets of RT 66 67 68 69 70 71 . Moreover, Burd et al 72 reported that higher-TUT RT (i.e., 30% 1-RM) resulted in greater sarcoplasmic protein synthesis (e.g., which includes mitochondrial proteins) compared to lower-TUT RT (i.e., 90% 1-RM).…”

Section: Upregulating Pgc-1α: the Potential Role Of Lactatementioning

confidence: 99%

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Aerobic Adaptations to Resistance Training: The Role of Time under Tension

Mang

Ducharme²,

Mermier

et al. 2022

Int J Sports Med

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Generally, skeletal muscle adaptations to exercise are perceived through a dichotomous lens where the metabolic stress imposed by aerobic training leads to increased mitochondrial adaptations while the mechanical tension from resistance training leads to myofibrillar adaptations. However, there is emerging evidence for cross over between modalities where aerobic training stimulates traditional adaptations to resistance training (e.g., hypertrophy) and resistance training stimulates traditional adaptations to aerobic training (e.g., mitochondrial biogenesis). The latter is the focus of the current review in which we propose high-volume resistance training (i.e., high time under tension) leads to aerobic adaptations such as angiogenesis, mitochondrial biogenesis, and increased oxidative capacity. As time under tension increases, skeletal muscle energy turnover, metabolic stress, and ischemia also increase, which act as signals to activate the peroxisome proliferator-activated receptor gamma coactivator 1-alpha, which is the master regulator of mitochondrial biogenesis. For practical application, the acute stress and chronic adaptations to three specific forms of high-time under tension are also discussed: Slow-tempo, low-intensity resistance training, and drop-set resistance training. These modalities of high-time under tension lead to hallmark adaptations to resistance training such as muscle endurance, hypertrophy, and strength, but little is known about their effect on traditional aerobic training adaptations.

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Section: Applications Of Rt With High-tutsupporting

confidence: 63%

Section: Upregulating Pgc-1α: the Potential Role Of Lactatementioning

confidence: 99%

Aerobic Adaptations to Resistance Training: The Role of Time under Tension

Mang

Ducharme²,

Mermier

et al. 2022

Int J Sports Med

View full text Add to dashboard Cite

show abstract

“…These results suggest that the TUT can vary both due to the number of repetitions performed in the same exercise, as well as the type of exercise. The size of the body segment can influence the displacement and, consequently, the velocity and TUT during the execution of the exercise (Silva et al, 2016). Thus, this result highlights the necessity to verify the TUT for each exercise and for each muscle group.…”

Section: Discussionmentioning

confidence: 92%

Untitled

2018

JPES

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The purpose of the present study was to compare the load influence on the time under tension (TUT), electromyographic activity (EMG) and blood lactate concentration (LAC) in 8, 10, and 12RM and the relationship between the TUT and the number of repetitions in the squat exercise. The sample consisted of ten military men (age: 18.90 ± 0.32 years, height: 1.73 ± 0.05 m, body mass: 67.55 ± 4.96 kg, body fat: 6.54 ± 1.87%). The TUT for 8, 10, and 12RM was verified by kinematic using the timing technique of the Kinovea software. After 48 hours, the subjects performed the squat exercise with the TUT and the load obtained in the tests, where the EMG and LAC were evaluated. The electrodes to capture the EMG signal were positioned in the following muscles: vastus medialis (VM), vastus lateralis (VL), rectus femoris (RF), and femoral biceps (FB). The ANOVA showed significant differences in all protocols in the TUT and LAC variables (p < 0.05) in increasing order to the number of repetitions (8 RM < 10RM < 12RM). The EMG showed a significant reduction in the RF activation in the 10RM for the 12RM in comparison with 8RM, as well as at VL activation for the 8 and 12RM protocols in comparison with 10RM. The study concluded that smaller loads and higher numbers of repetitions generate higher TUT and LAC. However, they result in smaller muscle activation for RF and VL. According to the results of the present study, there is no difference between 8, 10 and 12RM for the VM and FB muscles in the squat exercise.

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“…A relação entre o número total de repetições e o tempo em que o músculo permanece sob tensão é fator importante para o crescimento muscular (Silva et al, 2017). Da Silva et al (2016) compararam o tempo sob tensão (TST) necessário para realizar 8, 10 e 12 repetições máximas (RM) no supino e encontraram diferenças no TST entre 8 e 10 RM e entre 8 e 12 RM, mas não observaram diferenças entre 10 e 12 RM. Esses achados se contrapõem ao presente estudo, onde os resultados apontaram que independentemente da ordem de execução e da diferença no número total de repetições não foram observadas diferenças significativas no TST entre as duas condições experimentais quando comparadas ao teste de 10RM, no último exercício do protocolo.…”

Section: Discussionunclassified