Muscular fitness lab journal

Muscular fitness lab journal - Research in Sports Medicine,...

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Research in Sports Medicine , 14: 259–271, 2006 Copyright © Taylor & Francis Group, LLC ISSN 1543-8627 print / 1543-8635 online DOI: 10.1080/15438620600985860 GSPM 1543-8627 1543-8635 Research in Sports Medicine LOW-INTENSITY EXERCISE, VASCULAR OCCLUSION, AND MUSCULAR ADAPTATIONS Exercise With Vascular Oc lusion M. Teramoto and L.A. Golding Masaru Teramoto Lawrence A. Golding Department of Kinesiology, University of Nevada, Las Vegas, Nevada, USA The study investigated the effects of low-intensity exercise on muscular fitness when combined with vascular occlusion. Nineteen college male and female students performed two sets of a 5-min step exercise using a 12-inch bench three times per week for 5 weeks. During the step exercise, blood flow to one leg was restricted (vascular occlusion) with a blood pressure cuff, while the other leg was not occluded. Muscular strength of the occluded leg was significantly increased over the nonoccluded leg ( p < 0.05). Muscular endurance and muscle mass were improved after 5 weeks of training ( p < 0.05); however, the changes between the two legs were not significantly different ( p > 0.05). Exercise with vascular occlusion has the potential to be an alternative form of training to promote muscular strength. Keywords: low-intensity exercise, vascular occlusion, strength, muscular fitness INTRODUCTION A relatively new area of research is performing exercise while blood flow to the working muscle groups is restricted (vascular occlusion). Studies indicate that low-intensity (50% of one repetition maximum [1 RM]) resistance exercise can substantially increase muscle size and strength when combined with vascular occlusion (Shinohara, Kouzaki, Yoshihisa et al. 1998; Takarada, Takazawa, Sato et al. 2000). Muscle size and strength gains caused by low-intensity resistance exercise with vascular Received 19 May 2005; accepted 25 July 2006. The authors acknowledge the UNLV Graduate & Professional Student Association for funding this research project. Address correspondence to Masaru Teramoto, Department of Health and Exercise Science, Uni- versity of Oklahoma, 1401 Asp Avenue, Norman, OK 73019, USA. E-mail: Masaru.Teramoto@ou.edu
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260 M. Teramoto and L.A. Golding occlusion were even comparable with the gains resulting from high- intensity (80% of 1 RM) resistance exercise (Takarada, Takazawa, Sato et al. 2000). Shinohara and associates (1998) studied the effects of a 4-week low- intensity (40% of maximal voluntary contraction [MVC]) isometric knee extension exercise with and without vascular occlusion. Exercise with vascular occlusion increased MVC of the knee extensor muscles and the maximal rate of torque development, whereas exercise without vascular occlusion did not affect either of these measurements (Shinohara, Kouzaki, Yoshihisa et al. 1998). Takarada and associates (2000) studied the effects of a 16-week low-intensity (50% of 1 RM) isotonic elbow flexion exercise with and without vascular occlusion, as well as high- intensity (80% of 1 RM) elbow flexion exercise. There were greater increases in muscle cross-sectional area (CSA) and isokinetic strength of elbow flexor muscles after the low-intensity exercise with vascular occlusion
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This note was uploaded on 11/21/2011 for the course KINES 3502 taught by Professor Baker during the Fall '11 term at LSU.

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Muscular fitness lab journal - Research in Sports Medicine,...

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