scholarly journals WALKING WITH BLOOD FLOW RESTRICTION IMPROVES THE DYNAMIC STRENGTH OF WOMEN WITH OSTEOPOROSIS

2018 ◽  
Vol 24 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Elísio Alves Pereira Neto ◽  
Simoni Teixeira Bittar ◽  
Júlio César Gomes da Silva ◽  
Patrick Allan Souza Pfeiffer ◽  
Heleodório Honorato dos Santos ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Repeated Measures ◽  
Effective Means ◽  
Dynamic Strength ◽  
Blood Flow Restriction ◽  
Control Group ◽  
Significance Level ◽  
Flow Restriction ◽  
Significant Difference

ABSTRACT Introduction: Improving strength levels is important to women with osteoporosis. Resistance and aerobic exercise are effective means of reaching this goal; however, the use of low-load exercises with blood flow restriction is an alternative to traditional methods of exercise to achieve the same strength gains in this population. Objective: To analyze the chronic effects of aerobic and resistance training combined with blood flow restriction on the maximal dynamic strength (MDS) of women with osteoporosis. Methods: Twenty women (61.40±4.63 years of age, 61.82±12.54 kg, 1.51±0.05 m, 27.16±5.55 kg/m²) were randomly assigned to four groups: 1 - high-intensity resistance training (HI); 2 - low-intensity resistance training with blood flow restriction (LI-BFR); 3 - aerobic training with blood flow restriction (ABFR); and 4 - control group (CG). Unilateral knee extension MDS was assessed using the one-repetition maximum (1RM) strength test before and after the 6th and 12th weeks of intervention. The data were analyzed using repeated measures analysis of variance (ANOVA) with a Bonferroni post-hoc test performed using SPSS (version 21.0), considering a significance level of P<0.05 for all tests. Results: Baseline comparisons showed that HI and CG had lower strength levels than LI-BFR and ABFR groups (P<0.05). The ABFR group exhibited a significant increase in MDS between the 1st and the 6th week (9%, P=0.001) and between the 1st and the 12th week (21.6%, P=0.008). The LI-BFR group exhibited increased MDS between the 1st and the 6th week (10.1%, P=0.001), between the 1st and the 12th week (24.2%, P=0.003) and between the 6th and 12th week (12.8%, P=0.030). The HI group exhibited a significant difference between the 1st and the 6th week (38.7%, P<0.001), between the 1st and the 12th week (62%, P<0.001) and between the 6th and 12th weeks (17.4%, P=0.020), whereas the CG had no significant differences between the timepoints (P>0.05). Conclusions: ABFR and LI-BFR effectively increased the MDS of women with osteoporosis.

scholarly journals Different cooling strategies between sets for 30 seconds does not have beneficial effect on resistance exercise with blood flow restriction

2020 ◽  
Vol 31 (1) ◽  
Author(s):  
Rodrigo Gianoni ◽  
Paulo Eduardo Pereira ◽  
Paulo Henrique Azevedo
Keyword(s):  
Blood Flow ◽  
Resistance Exercise ◽  
Rest Period ◽  
Dynamic Strength ◽  
Blood Flow Restriction ◽  
Control Group ◽  
Total Body Mass ◽  
Flow Restriction ◽  
Significant Difference ◽  
Sample Characterization

The ice application (cooling) has become popular during physical activities to improve performance. This study aimed to test whether different cooling places could increase the number of repetitions (volume) during resistance training with blood flow restriction (BFR). Ten women volunteered for this study. The sample characterization is presented in mean and standard deviation: age: 28.5 ± 8.6 years; height: 164.6 ± 8.3 cm; total body mass: 61.5 ± 7.1 maximal dynamic strength test (1RM): 236.5 ± 54.8 kg; 30% 1RM: 71.6 ± 16.5; SBP: 124.7 ± 7.7 mm Hg; 1.3 x SBP: 161.8 ± 10.4 mm Hg. The subjects performed five sessions of resistance exercise with BFR. Three sets were held in each session, with the intensity of 30% of 1RM until muscle failure; and 30-second rest period between sets. The cooling sites were: hands, neck, and tunnel temperature. One session without cooling was done and considered as control group. There was neither difference in the total number of repetitions of repetitions among interventions, nor significant difference among interventions for RPE (P = 0.49). Therefore, we do not recommend cooling to maintain a high number of repetitions during strength training with BFR.

Effect of moderate intensity resistance training with blood flow restriction on muscle strength and girth in young adults –a randomized control trial

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Tanya Gujral ◽  
Jeyanthi Subburaj ◽  
Kiran Sharma
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Muscle Strength ◽  
Exercise Training ◽  
Blood Flow Restriction ◽  
Moderate Intensity ◽  
Control Group ◽  
Flow Restriction ◽  
Group A ◽  
Group B

Abstract Objectives To examine the effects of moderate intensity resistance training with blood flow restriction on muscle strength and forearm girth. Methods Total of 39 students enrolled in this study were divided into three groups that is group A (control group), group B and group C. Group A performed exercise training without restrictive pressure, group B & C performed exercise training with 50 and 75 mmHg respectively. Both the outcome measures were evaluated on day 1 and day 12th with the help of digital dynamometer and measuring tape. Results Repeated measure ANOVA with Post hoc analysis was done using SPSS software version 20. The result of the study showed significant (p≤0.05) within subject improvement in muscle strength and muscle girth in all the three groups. However, significant improvement in muscle strength was found in between group analysis (p≤0.05). Conclusions The results of the study can be concluded as the partial blood flow restriction (50 mmHg) with moderate intensity resistance training resulted in greater handgrip strength than the other two groups. No difference was found in forearm girth among the three groups, however within the group difference was found.

scholarly journals The effect of blood flow restriction and plyometric training methods on dynamic balance of Taekwondo athletes

2020 ◽  
Vol 24 (4) ◽  
pp. 157-162
Author(s):  
Manolya Akin ◽  
İnci Kesilmiş
Keyword(s):  
Blood Flow ◽  
Training Programs ◽  
Dynamic Balance ◽  
Blood Flow Restriction ◽  
Control Group ◽  
Training Methods ◽  
Plyometric Training ◽  
Flow Restriction ◽  
Significant Difference ◽  
Balance Ability

Background and Study Aim. Taekwondo (TKD) is a combat sport emphasizing on kicking techniques and dynamic footwork. Specialized balance ability is crucial for Taekwondo practitioners. Nowadays balance could be improved with specific strength training such as blood flow restriction and plyometric training. Thus, the aim of this study was to understand the effect of blood flow restriction (BFR) and pliometric training methods on the development of dynamic balance at the martial art of Taekwondo. Material and Methods. Totally 31 TKD athletes between 15-19 ages participated voluntarily and were divided into three groups as blood flow restriction (n=11), plyometric training (n=10) and control groups (n=10). In addition to normal taekwondo training, 8 week training programs were applied to the pliometric and blood flow restriction groups, and no training program was applied to the control group. At the beginning and after the trainings, dynamic balance ability measured with Prokin Tecnobody equipment for 30 seconds slalom test.  Results. The difference between pre-test and post-test values of BFR group’s dynamic balance (antero-posterior sway) was found to be statistically different (p<.05) while according to the pliometric training results, there was no statistically significant difference (p>.05). Also, there was not any difference in terms of gender (p>.05). Conclusions. Strength development is neccessary for dynamic balance improvement in athletes. Since taekwondo athletes use strength and balance ability for rapid kicking and change direction, these motor abilities are important for success. Based on the findings of this study; it is recommended that BFR method may be useful and so it can be included in training programs.

scholarly journals Effects of low-load resistance training with blood flow restriction on muscle size and strength of professional soccer players with muscle imbalance

2017 ◽  
Vol 6 (4) ◽  
pp. 7-13
Author(s):  
Benedito Sergio Denadai ◽  
Felipe Oliveira ◽  
Sérgio Camarda ◽  
Leandro Ribeiro ◽  
Camila Coelho Greco
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Training Programme ◽  
Blood Flow Restriction ◽  
Soccer Players ◽  
Muscle Size ◽  
Control Group ◽  
Cross Sectional ◽  
Flow Restriction ◽  
Professional Soccer

The purposes of this study were to determine whether low intensity resistance training combined with blood flow restriction (LI-BFR) could affect the concentric hamstrings/quadriceps muscle strength ratio (Hcon:Qcon) of professional soccer players with Hcon:Qcon imbalance (Study 1), and whether hamstrings strength response observed after LI-BFR is associated with muscle hypertrophy (Study 2). In the Study 1, athletes were randomly divided into a training group (n = 6) and a control group (n = 5). In the Study 2, all athletes (n = 11) have performed the training programme. The athletes participated in a 6-week (twice a week) supervised training programme (unilateral knee flexion at 30% 1RM) consisting of 12 training sessions. Peak concentric torque of knee flexors (+8%; P < 0.001) and Hcon:Qcon (+9%; P < 0.01) were significantly increased after LI-BFR. Moreover, the cross sectional area (CSA) of the hamstrings was significantly increased (+10%; P < 0.001) after LI-BFR. Thus, the addition of hamstrings strength training programme using LI-BFR during preseason is able to enhance both Hcon:Qcon and hamstrings CSA of professional soccer players with Hcon:Qcon imbalance.

Low-intensity resistance training with partial blood flow restriction and high-intensity resistance training induce similar changes in skeletal muscle transcriptome in elderly humans

2019 ◽  
Vol 44 (2) ◽  
pp. 216-220 ◽  
Author(s):  
Felipe C. Vechin ◽  
Cleiton A. Libardi ◽  
Miguel S. Conceição ◽  
Felipe Damas ◽  
Claudia R. Cavaglieri ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
High Intensity ◽  
Muscle Growth ◽  
Blood Flow Restriction ◽  
Control Group ◽  
Older Individuals ◽  
Illumina Hiseq ◽  
Cross Sectional ◽  
Flow Restriction

We aimed to investigate the mechanisms underlying muscle growth after 12 weeks of resistance training performed with blood flow restriction (RT–BFR) and high-intensity resistance training (HRT) in older individuals. Participants were allocated into the following groups: HRT, RT–BFR, or a control group. High-throughput transcriptome sequencing was performed by the Illumina HiSeq 2500 platform. HRT and RT–BFR presented similar increases in the quadriceps femoris cross-sectional area, and few genes were differently expressed between interventions. The small differences in gene expression between interventions suggest that similar mechanisms may underpin training-induced muscle growth.

Does Blood Flow Restriction Resistance Training Improve Knee-Extensor Strength, Function, and Reduce Patient-Reported Pain? A Critically Appraised Topic

2021 ◽  
pp. 1-6
Author(s):  
Matthew Zaremba ◽  
Joel Martin ◽  
Marcie Fyock-Martin
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Knee Injury ◽  
Strength Function ◽  
Knee Extensor ◽  
Blood Flow Restriction ◽  
Flow Restriction ◽  
Patient Reported ◽  
And Function ◽  
Knee Pathology

Clinical Scenario: Knee pathologies often require rehabilitation to address the loss of knee-extensor (KE) strength, function, and heightened pain. However, in the early stages of rehabilitation, higher loads may be contraindicated. Blood flow restriction (BFR) resistance training does not require high loads and has been used clinically to promote strength improvements in a variety of injured populations. BFR resistance training may be an effective alternative to high-intensity resistance training during early rehabilitation of knee pathologies. Clinical Question: Following a knee injury, does BFR resistance training improve KE strength and function, and reduce patient-reported pain? Summary of Key Findings: Four randomized controlled trial studies met the inclusion criteria. Each included study evaluated the use of BFR resistance training on knee pathologies and the effects on KE strength, functional outcomes, and pain compared with high- or low-load resistance training. All 4 studies reported significant improvements in KE strength, function, and pain through a variety of outcome measures, following BFR resistance training use as the treatment. Clinical Bottom Line: There is consistent evidence to support the use of BFR resistance training as a treatment intervention following knee injury and as a means to improve KE strength and function and to reduce pain. Strength of Recommendation: Grade A evidence supporting the use of BFR resistance training for improvement in KE strength and function, and the reduction of patient-reported pain following an acute or chronic knee pathology.

Practical blood flow restriction training increases muscle hypertrophy during a periodized resistance training programme

2013 ◽  
Vol 34 (4) ◽  
pp. 317-321 ◽  
Author(s):  
Ryan P. Lowery ◽  
Jordan M. Joy ◽  
Jeremy P. Loenneke ◽  
Eduardo O. de Souza ◽  
Marco Machado ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Muscle Hypertrophy ◽  
Training Programme ◽  
Blood Flow Restriction ◽  
Flow Restriction ◽  
Resistance Training Programme

Does blood flow restriction training increase the diameter of forearm vessels in chronic kidney disease patients? A randomized clinical trial

2018 ◽  
Vol 19 (6) ◽  
pp. 626-633 ◽  
Author(s):  
Jefferson BN Barbosa ◽  
Tuíra O Maia ◽  
Priscila S Alves ◽  
Shirley D Bezerra ◽  
Elaine CSC Moura ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Chronic Kidney Disease ◽  
Blood Flow ◽  
Kidney Disease ◽  
Radial Artery ◽  
Handgrip Strength ◽  
Cephalic Vein ◽  
Blood Flow Restriction ◽  
Control Group ◽  
Flow Restriction

Introduction: Blood flow restriction training can be used as an alternative to conventional exercise in chronic kidney disease patients with indication of arteriovenous fistula. Objective: Evaluating the efficacy of blood flow restriction training in the diameter and distensibility change of the cephalic vein and the diameter and flow of the radial artery, muscle strength and forearm circumference in chronic kidney disease patients with arteriovenous fistula pre-creation. Methods: A blind randomized clinical trial consisting of 26 chronic kidney disease patients allocated into a blood flow restriction training group (blood flow restriction; n = 12) and a group without blood flow restriction training (control group; n = 14). Blood flow restriction was performed at 50% of systolic blood pressure and using 40% of handgrip strength as load for the isometric exercises in both groups. Results: An increase in the diameter of the cephalic vein in the 2 cm (p = 0.008) and 10 cm segments (p = 0.001) was observed in the control group. The diameter of the radial artery increased in all segments in the blood flow restriction group (2, 10 and 20 cm; p = 0.005, p = 0.021 and p = 0.018, respectively) and in the 10 and 20 cm segments (p = 0.017 and p = 0.026) in the control group. Handgrip strength only increased in the control group (p = 0.003). Conclusion: Physical training associated with blood flow restriction increased cephalic vein diameters in both groups and was effective in increasing the diameter of the radial artery; however, it did not demonstrate superiority over the exercise group protocol without blood flow restriction.

Effects of exercise intensity and occlusion pressure after 12 weeks of resistance training with blood-flow restriction

2015 ◽  
Vol 115 (12) ◽  
pp. 2471-2480 ◽  
Author(s):  
Manoel E. Lixandrão ◽  
Carlos Ugrinowitsch ◽  
Gilberto Laurentino ◽  
Cleiton A. Libardi ◽  
André Y. Aihara ◽  
...  
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Exercise Intensity ◽  
Blood Flow Restriction ◽  
Occlusion Pressure ◽  
Flow Restriction

Training response to 8 weeks of blood flow restricted training is not improved by preferentially altering tissue hypoxia or lactate accumulation when training to repetition failure

2021 ◽  
Author(s):  
William Neil Morley ◽  
Shane Ferth ◽  
Mathew Ian Bergens Debenham ◽  
Matthew Boston ◽  
Geoffrey Alonzo Power ◽  
...  
Keyword(s):  
High Pressure ◽  
Blood Flow ◽  
Resistance Training ◽  
Blood Lactate ◽  
Blood Flow Restriction ◽  
Moderate Pressure ◽  
Muscular Endurance ◽  
Occlusion Pressure ◽  
Flow Restriction ◽  
Traditional Resistance Training

Despite compelling muscular structure and function changes resulting from blood flow restricted (BFR) resistance training, mechanisms of action remain poorly characterized. Alterations in tissue O2 saturation (TSI%) and metabolites are potential drivers of observed changes, but their relationships with degree of occlusion pressure are unclear. We examined local TSI% and blood lactate (BL) concentration during BFR training to failure using different occlusion pressures on strength, hypertrophy, and muscular endurance over an 8-week training period. Twenty participants (11M:9F) trained 3/wk for 8wk using high pressure (100% resting limb occlusion pressure, LOP, 20%1RM), moderate pressure (50% LOP, 20%1RM), or traditional resistance training (70%1RM). Strength, size, and muscular endurance were measured pre/post training. TSI% and BL were quantified during a training session. Despite overall increases, no group preferentially increased strength, hypertrophy, or muscular endurance (p>0.05). Neither TSI% nor BL concentration differed between groups (p>0.05). Moderate pressure resulted in greater accumulated deoxygenation stress (TSI%*time) (-6352±3081, -3939±1835, -2532±1349 au for moderate pressure, high pressure, and TRT, p=0.018). We demonstrate that BFR training to task-failure elicits similar strength, hypertrophy, and muscular endurance changes to traditional resistance training. Further, varied occlusion pressure does not impact these outcomes, nor elicit changes in TSI% or BL concentrations. Novelty Bullets • Training to task failure with low-load blood flow restriction elicits similar improvements to traditional resistance training, regardless of occlusion pressure. • During blood flow restriction, altering occlusion pressure does not proportionally impact tissue O2 saturation nor blood lactate concentrations

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