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The effects of supplementary low-load blood flow restriction training On morphological and performance-based adaptations in team sport athletes

Scott, B.R.ORCID: 0000-0002-2484-4019, Peiffer, J.J.ORCID: 0000-0002-3331-1177 and Goods, P.S.R. (2017) The effects of supplementary low-load blood flow restriction training On morphological and performance-based adaptations in team sport athletes. Journal of Strength and Conditioning Research, 31 (8). pp. 2147-2154.

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Low-load resistance training with blood flow restriction (BFR) may be a method to enhance muscular development, even in trained athletes. This study aimed to assess whether supplemental low-load BFR training can improve muscle size, strength, and physical performance characteristics in team sport athletes. Twenty-one semi-professional Australian football athletes were assessed for 3-repetition maximum (3RM) and muscular endurance in the back squat, vastus lateralis muscle architecture, and performance in sprint and vertical jump tasks. Participants then undertook a 5-week training program, consisting of normal high-load resistance training supplemented by low-load squats with (LLBFR) or without (LL)BFR. Participants also performed regular conditioning and football training during this period. Following the training intervention, participants again completed the pre-training testing battery. Squat 3RM and endurance increased from pre-training levels in both LL (3RM = 12.5% increase; endurance = 24.1% increase; p ≤ 0.007) and LLBFR (3RM = 12.3% increase; endurance = 21.2% increase; p = 0.007) groups, though there were no between group differences. No post-training changes were observed for muscle architecture, or performance in sprinting and jumping tasks. While squat 3RM and endurance performance increased in both groups, adding BFR during supplemental exercise did not enhance these responses. Similarly, there were no large differences in the assessments of sprint, acceleration and jumping performance between the groups following training. These findings suggest that while LLBFR did not negatively affect adaptive responses to resistance training, this training strategy may not provide added benefit for healthy Australian football athletes already undertaking a rigorous training schedule.

Item Type: Journal Article
Murdoch Affiliation(s): School of Psychology and Exercise Science
Publisher: National Strength & Conditioning Association
Copyright: © 2017 National Strength & Conditioning Association
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