The primary aim of this study was to systematically compare the effectiveness of blood flow restriction training (BFR) versus traditional resistance training (TRT) to improve muscle size in healthy adults. Secondary outcomes were improvements in muscle strength and endurance. We performed a systematic searchwithmeta-analysis. Using predetermined criteria, 541 unique articles were identified through databases and bibliographies. After screening titles, abstracts, and full texts, 20 articles were included in the review. All 20 articles evaluated muscle hypertrophy, 19 evaluated strength, and 1 evaluated endurance in response to BFR and TRT. Data from 10 articles were included in the meta-analysis. In the qualitative analysis, TRT and BFR increased muscle size without differences between conditions for at least 1 hypertrophy outcome in 13 studies, and TRT or BFR differentially improved hypertrophy in 5 studies. TRT and BFR increased strength without differences between conditions for at least 1 outcome in 15 studies, and TRT or BFR differentially improved strength in 9 studies. Results from the meta-analysis indicate no differences in muscle size (ES 5 0.045, 95% CI [20.278 to 0.367]) or strength (ES520.149, 95% CI [20.439 to 0.141]) improvements with BFR versus TRT. Practitioners can implement BFR training to increase muscle size and strength as appropriate, especially for training periods of 8 weeks or longer.

Learn to identify proper scenarios for implementation of blood flow restriction (BFR) training for rehabilitation and performance enhancement, and understand indications and precautions for implementing BFR. This session from the NSCA’s 2016 TSAC Annual Training demonstrates proper usage and technique with standard exercises while using BFR.

The innovative technology found in portable BFR training systems can help tactical personnel achieve greater strength and hypertrophic gains, as well as optimize training programs and overall performance.

In this session from the 2019 NSCA National Conference, Gary Boros, Associate Director of Sports Performance at the University of Denver, and Chris Jarmon, Sport Performance Coach at Landow Performance, discuss the understanding of the science and research behind blood flow restriction (BFR); connects research insights in performance, rehabilitation, and general fitness; and discerns the ideal use cases, equipment, and training protocols for BFR.

This article will demonstrate why personal trainers should consider the use of blood flow restriction (BFR) and BFR technology for appropriate medically-screened clients that provides an objective way to apply pressure, whether that is through manual or automated cuffs.

Jacob Wilson, PhD, CSCS,*D, presents at the NSCA's 2013 National Conference on the controversial topic of blood flow restriction training and its effects on strength and hypertrophy

This article provides a brief overview of literature where regional hypertrophy was reported. It also discusses the basic science and application of regional hypertrophy training.

Contracted Human Performance and Optimization Coach of 2nd Ranger Battalion, 75th Ranger Regimen Jeff Carroll talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about his start in the field of strength and conditioning and his transition from professional athletes to a tactical population and setting. Topics under discussion include: Carroll’s career path, coaching professional athletes, transitioning to tactical strength and conditioning, and the future of tactical strength and conditioning.

This article takes a closer look at training strength and stiffness in connective tissues.

This book excerpt provides a step-by-step breakdown of the movements of the power snatch, from the starting position to the downward movement.