Blood Flow Restriction Increases Metabolic Stress But Decreases Muscle Activation During High-Intensity Resistance Training

2016 ◽  
Vol 48 ◽  
pp. 161
Author(s):  
Renato Barroso ◽  
Emerson Teixeira ◽  
Carla Silva-Batista ◽  
Gilberto Laurentino ◽  
Hamilton Roschel ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
High Intensity ◽  
Muscle Activation ◽  
Metabolic Stress ◽  
Blood Flow Restriction ◽  
Flow Restriction

scholarly journals Resistance Training with Blood Flow Restriction Compared to Traditional Resistance Training on Strength and Muscle Mass in Non-Active Older Adults: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 18 (21) ◽  
pp. 11441
Author(s):  
Darío Rodrigo-Mallorca ◽  
Andrés Felipe Loaiza-Betancur ◽  
Pablo Monteagudo ◽  
Cristina Blasco-Lafarga ◽  
Iván Chulvi-Medrano
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Blood Flow ◽  
Resistance Training ◽  
Muscle Mass ◽  
High Intensity ◽  
Meta Analysis ◽  
Small Sample ◽  
Blood Flow Restriction ◽  
Flow Restriction

Low-intensity training with blood flow restriction (LI-BFR) has been suggested as an alternative to high-intensity resistance training for the improvement of strength and muscle mass, becoming advisable for individuals who cannot assume such a load. The systematic review aimed to determine the effectiveness of the LI-BFR compared to dynamic high-intensity resistance training on strength and muscle mass in non-active older adults. A systematic review was conducted according to the Cochrane Handbook and reportedly followed the PRISMA statement. MEDLINE, EMBASE, Web of Science Core Collection, and Scopus databases were searched between September and October 2020. Two reviewers independently selected the studies, extracted data, assessed the risk of bias and the quality of evidence using the GRADE approach. Twelve studies were included in the qualitative synthesis. Meta-analysis pointed out significant differences in maximal voluntary contraction (MVC): SMD 0.61, 95% CI [0.10, 1.11], p = 0.02, I2 71% p < 0.0001; but not in the repetition maximum (RM): SMD 0.07, 95% CI [−0.25, 0.40], p = 0.66, I2 0% p < 0.53; neither in the muscle mass: SMD 0.62, 95% CI [−0.09, 1.34], p = 0.09, I2 59% p = 0.05. Despite important limitations such as scarce literature regarding LI-BFR in older adults, the small sample size in most studies, the still differences in methodology and poor quality in many of them, this systematic review and meta-analysis revealed a positive benefit in non-active older adults. LI- BFR may induce increased muscular strength and muscle mass, at least at a similar extent to that in the traditional high-intensity resistance training.

Strength and Muscle Activation Changes Following Three Weeks of Resistance Training with Blood Flow Restriction

2010 ◽  
Vol 42 ◽  
pp. 740
Author(s):  
Kyle A. Sherk ◽  
Dae-Yeol Kim ◽  
Harshvardhan Harshvardhan ◽  
Takashi Abe ◽  
Yoshiaki Sato ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Muscle Activation ◽  
Blood Flow Restriction ◽  
Flow Restriction

scholarly journals Maximizing Muscle Hypertrophy: A Systematic Review of Advanced Resistance Training Techniques and Methods

2019 ◽  
Vol 16 (24) ◽  
pp. 4897 ◽  
Author(s):  
Krzysztofik ◽  
Wilk ◽  
Wojdała ◽  
Gołaś
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Muscle Hypertrophy ◽  
Data Extraction ◽  
Metabolic Stress ◽  
Efficient Solutions ◽  
Blood Flow Restriction ◽  
Mechanical Tension ◽  
Flow Restriction ◽  
Low Load

Background: Effective hypertrophy-oriented resistance training (RT) should comprise a combination of mechanical tension and metabolic stress. Regarding training variables, the most effective values are widely described in the literature. However, there is still a lack of consensus regarding the efficiency of advanced RT techniques and methods in comparison to traditional approaches. Methods: MEDLINE and SPORTDiscus databases were searched from 1996 to September 2019 for all studies investigating the effects of advanced RT techniques and methods on muscle hypertrophy and training variables. Thirty articles met the inclusion criteria and were consequently included for the quality assessment and data extraction. Results: Concerning the time-efficiency of training, the use of agonist–antagonist, upper–lower body supersets, drop and cluster sets, sarcoplasma stimulating training, employment of fast, but controlled duration of eccentric contractions (~2s), and high-load RT supplemented with low-load RT under blood flow restriction may provide an additional stimulus and an advantage to traditional training protocols. With regard to the higher degree of mechanical tension, the use of accentuated eccentric loading in RT should be considered. Implementation of drop sets, sarcoplasma stimulating training, low-load RT in conjunction with low-load RT under blood flow restriction could provide time-efficient solutions to increased metabolic stress. Conclusions: Due to insufficient evidence, it is difficult to provide specific guidelines for volume, intensity of effort, and frequency of previously mentioned RT techniques and methods. However, well-trained athletes may integrate advanced RT techniques and methods into their routines as an additional stimulus to break through plateaus and to prevent training monotony.

Blood flow restriction increases metabolic stress but decreases muscle activation during high‐load resistance exercise

2017 ◽  
Vol 57 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Emerson L. Teixeira ◽  
Renato Barroso ◽  
Carla Silva‐Batista ◽  
Gilberto C. Laurentino ◽  
Jeremy P. Loenneke ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Exercise ◽  
Muscle Activation ◽  
Metabolic Stress ◽  
Load Resistance ◽  
High Load ◽  
Blood Flow Restriction ◽  
Flow Restriction

scholarly journals The Effect of Eccentric Resistance Training with and Without Blood Flow Restriction on Serum IL6 and MMP9 Levels in Young Active Men

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Mohammad Eslamdoust ◽  
Farshad Ghazalian ◽  
Mandana Gholami ◽  
Khosrow Ebrahim ◽  
Behzad Bazgir
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Resistance Exercise ◽  
Eccentric Exercise ◽  
High Intensity ◽  
Young Men ◽  
Blood Flow Restriction ◽  
Exercise Modality ◽  
Flow Restriction ◽  
Low Intensity

Background: It has been assumed that during and after BFR exercises, many blood factors are activated and angiogenesis response is stimulated in the arteries. Objectives: Therefore, the current study aimed to determine the effect of two eccentric resistance training methods with and without blood flow restriction on serum IL6 and MMP9 levels in active young men. Methods: In this quasi-experimental study, 16 healthy men with a mean age of 27.8 ± 2.85 (years), the weight of 79.4 ± 12.4 (kg), and a body mass index of 25.5 ± 3.7 (kg/m2) were randomly assigned to either low-intensity eccentric group with BFR or the high-intensity eccentric without BFR. The high-intensity (70% - 80% maximum voluntary contraction MVC) eccentric exercise without BFR included 3 - 5 cycles of eccentric contraction of the quadriceps muscles, up to exhaustion, whereas low-intensity eccentric exercise executed similar exercise modality at intensity of 20% - 30% MVC with blood flow restriction up to exhaustion. Blood samples were taken from antecubital both before and after the exercise to measure serum IL6 and MMP9 values using the ELISA method. Data were analyzed using paired t-test and analysis of variance with repeated measure test in SPSS version 22. A P value of < 0.05 was defined as statistically significant. Results: High-intensity resistance per se and low-intensity resistance exercise with BFR similarly resulted in a non-significant reduction of IL-6 and elevated levels of MMP-9 serum levels in active young men. Conclusions: Overall, the results indicated that a low-intensity resistance exercise session with restricted blood flow and a high-intensity resistance exercise without blood flow restriction equally did not affect IL6 and MMP9 serum of active young men. Further studies are needed to clarify the exact exercise modality that sufficiently stimulates angiogenesis.

Dose effect on intramuscular metabolic stress during low-intensity resistance exercise with blood flow restriction

2010 ◽  
Vol 108 (6) ◽  
pp. 1563-1567 ◽  
Author(s):  
Tadashi Suga ◽  
Koichi Okita ◽  
Noriteru Morita ◽  
Takashi Yokota ◽  
Kagami Hirabayashi ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Exercise ◽  
Exercise Intensity ◽  
High Intensity ◽  
Metabolic Stress ◽  
Blood Flow Restriction ◽  
Dose Effect ◽  
Flow Restriction ◽  
Low Intensity ◽  
Dose Effects

Our previous study reported that metabolic stress in skeletal muscle achieved by combining moderate blood flow restriction (BFR) with low-intensity resistance exercise at 20% of one repetition maximum (1 RM) could not reach the level achieved by high-intensity resistance exercise. Since the previous protocol is typical of current regimens of this type, we sought in this study to optimize the exercise protocol for low-intensity resistance exercise with BFR by examining the dose effects of exercise intensity and pressure. Twelve healthy subjects participated in this study. They were asked to perform unilateral plantar flexion for 2 min (30 repetitions/min) under six different conditions: two resistance exercises (20% 1 RM and 65% 1 RM) without BFR, and four BFR protocols. The four BFR protocols included three different exercise intensities (20, 30, and 40% 1 RM) with moderate pressure (MP) using 130% of systolic blood pressure (147 ± 17 mmHg, mean ± SD) and 20% 1 RM with high pressure at 200 mmHg. Intramuscular metabolites and pH were obtained by 31P-magnetic resonance spectroscopy. Significant dose effects on intramuscular metabolites and pH were observed for exercise intensity ( P < 0.001) but not for BFR pressure. The BFR protocol combining 30% 1 RM with MP had similar results as the high-intensity load at 65% 1 RM. Intramuscular metabolic stress during BFR exercise might be susceptible to increasing exercise intensity. To replace high-intensity resistance exercise, the BFR protocol might require an intensity of ≥30% 1 RM.

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