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Behringer, M, Behlau, D, Montag, JCK, McCourt, ML, and Mester, J. Low-intensity sprint training with blood flow restriction improves 100-m dash. J Strength Cond Res 31 (9): 2462–2472, 2017—We investigated the effects of practical blood flow restriction (pBFR) of leg muscles during sprint training on the 100-m dash time in well-trained sport students. Participants performed 6× 100-m sprints at 60–70% of their maximal 100-m sprinting speed twice a week for 6 weeks, either with (intervention group [IG]; n= 12) or without pBFR (control group [CG]; n= 12). The 100-m dash time significantly decreased more in the IG (− 0.38±0.24 seconds) than in the CG (− 0.16±0.17 seconds). The muscle thickness of the rectus femoris increased only in the IG, whereas no group-by-time interactions were found for the muscle thickness of the biceps femoris and the biceps brachii. The maximal isometric force, measured using a leg …