Blood Flow Restriction Combined with Resistance Training: Mechanisms, Dose-Response, and Applications for Strength and Hypertrophy

Blood flow restriction (BFR) resistance training has rapidly emerged as one of the most dynamic fields in exercise science due to its capacity to induce substantial neuromuscular adaptations while minimizing external mechanical loads. Initially proposed as an effective strategy for populations unable to tolerate high-load resistance exercise, BFR training has progressively expanded into areas such as athletic performance, rehabilitation, and healthy ageing. Despite the growing body of evidence supporting its effectiveness, important questions remain regarding how resistance training variables should be manipulated to maximize adaptations while minimizing unnecessary fatigue.Current research indicates that the effectiveness of BFR training is not determined solely by cuff pressure or external load. Instead, programming variables such as proximity to failure, movement velocity, velocity loss thresholds, set configuration, recovery strategies, and overall training dose profoundly influence the mechanical, metabolic, and neuromuscular responses elicited by exercise. Recent studies have demonstrated that manipulating velocity loss during BFR modifies fatigue development, muscle contractile properties, neuromuscular activity, and post-exercise mechanical performance. Likewise, movement velocity during BFR exercise can alter force production, metabolic stress, and neuromuscular responses, emphasizing that training prescription extends far beyond simply applying vascular occlusion. Moreover, emerging evidence suggests that different resistance training configurations performed with BFR may differentially influence chronic adaptations in strength and hypertrophy, highlighting the necessity of individualized and evidence-based approaches to exercise prescription.At the same time, significant methodological heterogeneity persists across the literature. Differences in cuff characteristics, arterial occlusion pressure determination, exercise intensity, volume, effort level, movement velocity, and training configuration continue to limit comparisons between studies and hinder the establishment of standardized practical recommendations. Advances in physiological monitoring techniques, including near-infrared spectroscopy (NIRS), electromyography, velocity-based resistance training, and other neuromuscular assessment tools, present new opportunities to elucidate the mechanisms underlying BFR-induced adaptations and optimize individualized training prescription.This Research Topic aims to provide an interdisciplinary platform for original research, systematic reviews, meta-analyses, methodological papers, and perspective articles dedicated to advancing the understanding and optimization of BFR resistance training across diverse populations. We particularly welcome submissions investigating the interaction between training prescription and physiological responses, including dose–response relationships, fatigue monitoring, recovery, neuromuscular adaptations, and the mechanisms underpinning performance improvements. Topics of interest include, but are not limited to:• Physiological and molecular mechanisms underlying BFR adaptations• Dose–response relationships involving arterial occlusion pressure, exercise intensity, volume, and proximity to failure• Velocity-based resistance training and velocity loss thresholds during BFR• Set configuration (traditional, cluster, rest-redistribution) and recovery strategies• Muscle oxygenation assessment using NIRS and other monitoring technologies• Acute mechanical, metabolic, and neuromuscular responses• Long-term adaptations in strength, hypertrophy, power, endurance, and recovery• Applications in athletic performance, rehabilitation, healthy ageing, and clinical populations• Methodological considerations, safety, implementation, and future directionsBy integrating mechanistic, methodological, and applied research, this Research Topic seeks to advance current knowledge on the optimization of blood flow restriction resistance training and foster the development of evidence-based recommendations for researchers, clinicians, and strength and conditioning professionals. We invite contributions that strengthen the scientific foundations and practical implementation of BFR training. Topic editors: Pedro Jesús Cornejo Daza, Luis Leitão, Juan Sánchez-Valdepeñas Mateos-Aparicio Source: https://www.frontiersin.org/research-topics/83843/blood-flow-restriction-combined-with-resistance-training-mechanisms-dose-response-and-applications-for-strength-and-hypertrophy