Effectiveness of low-load resistance muscular training under restrictions of blood flow in healthy, persons.

The present study aimed to prove the effectiveness of low-load resistance muscular training under moderate restriction of blood flow. Twelve limbs of 6 healthy male adults were studied. In each subject, one lower limb was subjected to blood flow restriction (group R) and the other lower limb was not subjected to blood flow restriction (group N), and low-load resistance lower limb muscular training was conducted 3 times weekly for 8 weeks. Knee extensor torque, muscular discharge at the M. vastus lateral is and M. vastus medialis, and the cross-sectional area of the knee extensor muscle group were measured before training and after training for 8 weeks. and the results were evaluated. Results of knee extensor torque (isometric contraction at 60° knee flexion) showed significant augmentation (p<0.05) of muscular strength in group R compared to group N. In the M. vastus lateralis, a significant increase (p<0.05) in muscular discharge was observed in group R compared to group N. No significant difference in the pre- / post-training ratio of the muscular cross-sectional area was observed between the two groups. These results confirmed that low-load resistance muscular training under moderate restriction of blood flow is an effective muscular training for healthy adults without muscular atrophy. [ABSTRACT FROM AUTHOR]