Effects of low-load resistance training with vascular occlusion on the mechanical properties of muscle and tendon

The present study aimed to investigate the effects of low-load resistance training with vascular occlusion on the specific tension and tendon properties by comparing with those of high-load training. Nine participants completed 12 weeks (3 days/week) of a unilateral isotonic training program on knee...

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Bibliographic Details
Published in:Journal of applied biomechanics 2006-05, Vol.22 (2), p.112-119
Main Authors: Kubo, Keitaro, Komuro, Teruaki, Ishiguro, Noriko, Tsunoda, Naoya, Sato, Yoshiaki, Ishii, Naokata, Kanehisa, Hiroaki, Fukunaga, Tetsuo
Format: Article
Language:eng ; lat
Subjects:
Adult
Electromyography
Humans
Isometric Contraction - physiology
Knee
Knee Joint - physiology
Male
Muscle, Skeletal - blood supply
Muscle, Skeletal - physiology
Physical Education and Training - methods
Range of Motion, Articular - physiology
Regional Blood Flow - physiology
Strength training
Tendons - blood supply
Tendons - physiology
Tourniquets
Vascular occlusion
Weight-Bearing - physiology
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Summary:The present study aimed to investigate the effects of low-load resistance training with vascular occlusion on the specific tension and tendon properties by comparing with those of high-load training. Nine participants completed 12 weeks (3 days/week) of a unilateral isotonic training program on knee extensors. One leg was trained using low load (20% of 1 RM) with vascular occlusion (LLO) and other leg using high load (80% of 1 RM) without vascular occlusion (HL). Before and after training, maximal isometric knee extension torque (MVC) and muscle volume were measured. Specific tension of vastus lateralis muscle (VL) was calculated from MVC, muscle volume, and muscle architecture measurements. Stiffness of tendon-aponeurosis complex in VL was measured using ultrasonography during isometric knee extension. Both protocols significantly increased MVC and muscle volume of quadriceps femoris muscle. Specific tension of VL increased significantly 5.5% for HL, but not for LLO. The LLO protocol did not alter the stiffness of tendon-aponeurosis complex in knee extensors, while the HL protocol increased it significantly. The present study demonstrated that the specific tension and tendon properties were found to remain following low-load resistance training with vascular occlusion, whereas they increased significantly after high-load training.
ISSN:1065-8483
1543-2688
DOI:10.1123/jab.22.2.112