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DOI: 10.1055/s-0029-1239499
© Georg Thieme Verlag KG Stuttgart · New York
A Mechanistic Approach to Blood Flow Occlusion
Publication History
accepted after revision August 17, 2009
Publication Date:
02 November 2009 (online)
![](https://www.thieme-connect.de/media/sportsmed/201001/lookinside/thumbnails/10.1055-s-0029-1239499-1.jpg)
Abstract
Low-Intensity occlusion training provides a unique beneficial training mode for promoting muscle hypertrophy. Training at intensities as low as 20% 1RM with moderate vascular occlusion results in muscle hypertrophy in as little as three weeks. The primary mechanisms by which occlusion training is thought to stimulate growth include, metabolic accumulation, which stimulates a subsequent increase in anabolic growth factors, fast-twitch fiber recruitment (FT), and increased protein synthesis through the mammalian target of rapamycin (mTOR) pathway. Heat shock proteins, Nitric oxide synthase-1 (NOS-1) and Myostatin have also been shown to be affected by an occlusion stimulus. In conclusion, low-intensity occlusion training appears to work through a variety of mechanisms. The research behind these mechanisms is incomplete thus far, and requires further examination, primarily to identify the actual metabolite responsible for the increase in GH with occlusion, and determine which mechanisms are associated to a greater degree with the hypertrophic/anti-catabolic changes seen with blood flow restriction.
Key words
HSP 72 - growth hormone - lactate - mTOR - hypertrophy - myostatin
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Correspondence
J. P. Loenneke
Southeast Missouri State University Health, Human Performance and Recreation
One University Plaza
63701 Cape Girardeau
United States
Phone: 573-450-2952
Fax: 573-651-5150
Email: jploenneke1s@semo.edu