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Muscular adaptations after two different volumes of blood flow‐restricted training
Author(s) -
MartínHernández J.,
Marín P. J.,
Menéndez H.,
Ferrero C.,
Loenneke J. P.,
Herrero A. J.
Publication year - 2013
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/sms.12036
Subject(s) - blood flow restriction , medicine , intensity (physics) , leg press , one repetition maximum , resistance training , skeletal muscle , blood flow , muscle strength , cardiology , physics , quantum mechanics
This study aimed to gain an insight into the adaptations of muscle strength and skeletal muscle thickness after two different volumes of blood flow restriction training ( BFRT ), and compare them with high‐intensity training. The sample was divided into four groups: low‐volume, low‐intensity BFRT ( BFRT LV ); high‐volume, low‐intensity BFRT ( BFRT HV ); traditional high‐intensity resistance training ( HIT ); and a control group, which maintained their routine activities ( CON ). Leg extension one repetition maximum ( 1RM ), isokinetic peak knee extension, and flexion torques at 60°/s and 180°/s as well as muscle thickness of the rectus femoris ( RF ) and vastus lateralis ( VL ) were assessed at baseline and after 5 weeks of training BFRT LV (7.03%, P < 0.05), BFRT HV (6.24%, P < 0.05) and HIT (18.86%, P < 0.001) groups increased 1RM performance, while no changes were observed in the CON group. Muscle thickness of the RF and VL was increased irrespective of the training group (7.5%, P < 0.001; and 9.9%, P < 0.001, respectively). We conclude that doubling the exercise volume with BFRT causes no further benefit with muscular size or strength. Although similar increases in muscle thickness were observed between training groups, HIT increased 1RM performance to a greater extent compared to either volume of BFRT .