Judd Kaitlyn, Morales Christian, White Megan, Wilkie Kate, Faller Justin, Ives Stephen J
Health & Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, USA.
Department of Kinesiology, Sports Studies and Physical Education, SUNY Brockport, Brockport, NY, 14420, USA.
Int J Exerc Sci. 2023 Oct 1;16(6):1244-1256. doi: 10.70252/YPGD4396. eCollection 2023.
Blood flow restriction training (BFRT) uses occlusion during low-intensity resistance training (< 50% of 1-repetition maximum, 1RM) to reduce arterial blood flow and venous return, imposing greater metabolic stress but similar muscular hypertrophy and strength gains as high-intensity resistance training (HIRT). However, no study, to date, has incorporated BFRT in a collegiate strength and conditioning setting to assess ecological validity. We aimed to investigate the effects of adding 6-weeks of accessory BFRT or HIRT to NCAA Division III soccer players prescribed resistance training regimen on muscle strength and size. Male and female ( = 17) athletes were randomly assigned to complete biceps curls 2x/week under BFRT or control (HIRT), following regularly scheduled strength training. Bicep strength (1RM) and circumference (BC) were assessed at weeks 0, 3, and 6 (men only). In men, for BC no significant interaction of condition x time was observed ( = 0.861), though condition (BFRT vs Control, = 0.025) and time ( = 0.024) were significant. For 1RM, there was no significant interaction of condition x time (BFRT vs HIRT, = 0.067) or of condition ( = 0.598), but there was a significant effect of time ( = 0.004). In women, there was no significant interaction between time and condition ( = 0.765) or of condition ( = 0.971) on BC, but time was significant ( = 0.045). For 1RM, there was no significant interaction of condition x time ( = 0.227) or of condition ( = 0.741), but time was ( = 0.018). In this preliminary ecological study, BFRT induced similar increases in muscle strength and circumference as HIRT in soccer players, suggesting that BFRT could be incorporated into collegiate athlete training.
血流限制训练（BFRT）在低强度抗阻训练（<1次重复最大值的50%，即1RM）过程中采用闭塞法来减少动脉血流和静脉回流，从而施加更大的代谢压力，但与高强度抗阻训练（HIRT）产生的肌肉肥大和力量增长效果相似。然而，迄今为止，尚无研究将BFRT纳入大学力量与体能训练环境中以评估其生态效度。我们旨在研究在NCAA第三分区足球运动员的规定抗阻训练方案中增加为期6周的辅助BFRT或HIRT对肌肉力量和围度的影响。男性和女性（n = 17）运动员被随机分配，在常规安排的力量训练之后，每周进行2次肱二头肌弯举，一组采用BFRT，另一组作为对照（HIRT）。在第0周、第3周和第6周（仅针对男性）评估肱二头肌力量（1RM）和围度（BC）。在男性中，对于BC，未观察到条件×时间的显著交互作用（P = 0.861），尽管条件（BFRT与对照，P = 0.025）和时间（P = 0.024）具有显著性。对于1RM，条件×时间（BFRT与HIRT，P = 0.067）或条件（P = 0.598）均无显著交互作用，但时间具有显著影响（P = 0.004）。在女性中，时间与条件之间（P = 0.765）或条件（P = 0.971）对BC均无显著交互作用，但时间具有显著性（P = 0.045）。对于1RM，条件×时间（P = 0.227）或条件（P = 0.741）均无显著交互作用，但时间具有显著性（P = 0.018）。在这项初步的生态研究中，BFRT在足球运动员中引起的肌肉力量和围度增加与HIRT相似，这表明BFRT可以纳入大学运动员训练中。
