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Acute neuromuscular and perceptual responses to blood flow restriction exercise in adults with severe haemophilia: A pilot study

医学 血流受限 血友病 物理医学与康复 不利影响 物理疗法 耐受性 肌电图 内科学 外科 阻力训练
作者
Daniel C. Ogrezeanu,Joaquín Calatayud,S. Ramírez Rodríguez,Juan J. Carrasco,Eduardo Martinez‐Valdes,José Casaña,Carlos Cruz‐Montecinos,Lars L. Andersen,Per Aagaard,Rubén López‐Bueno,Sofía Pérez‐Alenda
出处
期刊:Haemophilia [Wiley]
卷期号:30 (5): 1193-1202 被引量:2
标识
DOI:10.1111/hae.15084
摘要

Abstract Introduction No previous studies have implemented a standard blood flow restriction (BFR) training session in people with severe haemophilia (PwH), where this type of training has been contraindicated. Aims The purpose of this study was to evaluate the tolerability, adverse events, and neuromuscular and perceptual responses to an acute session of low load (LL) knee extensions with BFR in PwH under prophylaxis. Methods Eight PwH performed one LL‐BFR session with 40% arterial occlusion pressure (AOP). Perceptual responses and adverse effects were assessed, together with high‐density surface electromyography of vastus medialis (VM) and lateralis (VL). Results Significant normalized root mean square differences were found within each set, but not between sets. Spatial distribution (centroid displacement ( p > .05), modified entropy (VM, set two, cycles three and five, p = .032) and coefficient of variation (VM, set two, cycles four and five lower than cycle three ( p = .049; p = .036)) showed changes within each set. Median frequency showed a slight increase during cycle four of set four ( p = .030). Rate of perceived exertion slightly increased with each set while tolerability slightly decreased in the last set and fear of training with BFR generally decreased after the session. Conclusions In PwH, a LL‐BFR session at 40% AOP is safe and feasible. Our results suggest that potential muscle impairments may blunt neuromuscular adaptations induced by BFR.
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