{"id":165,"date":"2011-09-26T12:32:00","date_gmt":"2011-09-26T12:32:00","guid":{"rendered":"http:\/\/lucasgferreira.wordpress.com\/2011\/09\/26\/suplementacao-de-beta-alanina-em-jogadores-de-futebol-americano"},"modified":"2011-09-26T12:32:00","modified_gmt":"2011-09-26T12:32:00","slug":"suplementacao-de-beta-alanina-em-jogadores-de-futebol-americano","status":"publish","type":"post","link":"https:\/\/blog.ufes.br\/lucasgf\/?p=165","title":{"rendered":"Suplementa\u00e7\u00e3o de Beta-alanina em jogadores de futebol americano"},"content":{"rendered":"
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Effects of \u03b2-alanine <\/span>supplementation<\/span> on performance and body composition in collegiate wrestlers and <\/span>football<\/span> players.<\/span><\/h1>\n
J Strength Cond Res.<\/a> 2011 Jul;25(7):1804-15.<\/div>\n
<\/div>\n
Kern BD<\/a>, Robinson TL<\/a>.<\/div>\n
\n

<\/h3>\n

Human Performance and Physical Education Department, Adams State College, Alamosa, Colorado, USA. bdkern@adams.edu<\/p><\/div>\n

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Abstract<\/h3>\n
The purpose of this study was to examine the effectiveness of \u03b2-alanine as an ergogenic aid in tests of anaerobic power output after 8 weeks of high-intensity interval, repeated sprint, and resistance training in previously trained collegiate wrestlers (WR) and football<\/span> (FB) players. Twenty-two college WRs (19.9 \u00b1 1.9 years, age \u00b1 SD) and 15 college FB players (18.6 \u00b1 1.5 years) participated in this double-blind, placebo-controlled study. Each subject ingested either 4 g\u00b7d \u03b2-alanine or placebo in powdered capsule form. Subjects were tested pre and posttreatment in timed 300-yd shuttle, 90\u00b0 flexed-arm hang (FAH), body composition, and blood lactate after 300-yd shuttle. Although not statistically significant (p > 0.05) subjects taking \u03b2-alanine achieved more desirable results on all tests compared to those on placebo. Performance improvements were greatest in the FB supplement group, decreasing 300 shuttle time by 1.1 seconds (vs. 0.4-second placebo) and increasing FAH (3.0 vs. 0.39 seconds). The wrestlers, both placebo and supplement, lost weight (as was the goal, i.e., weight bracket allowance); however, the supplement group increased lean mass by 1.1 lb, whereas the placebo group lost lean mass (-0.98 lb). Both FB groups gained weight; however, the supplement group gained an average 2.1-lb lean mass compared to 1.1 lb for placebo. \u03b2-Alanine appears to have the ability to augment performance and stimulate lean mass accrual in a short amount of time (8 weeks) in previously trained athletes. Training regimen may have an effect on the degree of benefit from \u03b2-alanine supplementation<\/span>.<\/b><\/div>\n
<\/div>\n
<\/div>\n

<\/a><\/div>\n

Short-duration beta-alanine <\/span>supplementation<\/span> increases training volume and reduces subjective feelings of fatigue in college <\/span>football<\/span> players.<\/span><\/h1>\n
Nutr Res.<\/a> 2008 Jan;28(1):31-5.<\/div>\n
<\/div>\n
Hoffman JR<\/a>, Ratamess NA<\/a>, Faigenbaum AD<\/a>, Ross R<\/a>, Kang J<\/a>, Stout JR<\/a>, Wise JA<\/a><\/div>\n
<\/div>\n
Department of Health and Exercise Science, The College of New Jersey, PO Box 7718, Ewing, NJ 08628, USA. hoffmanj@tcnj.edu<\/div>\n
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Abstract<\/h3>\n

The purpose of this study was to examine the effect of 30 days of beta-alanine supplementation<\/span> in collegiate football<\/span> players on anaerobic performance measures. Subjects were randomly divided into a supplement (beta-alanine group [BA], 4.5 g x d(-1) of beta-alanine) or placebo (placebo group [P], 4.5 g x d(-1) of maltodextrin) group. Supplementation<\/span> began 3 weeks before preseason football<\/span> training camp and continued for an additional 9 days during camp. Performance measures included a 60-second Wingate anaerobic power test and 3 line drills (200-yd shuttle runs with a 2-minute rest between sprints) assessed on day 1 of training camp. Training logs recorded resistance training volumes, and subjects completed questionnaires on subjective feelings of soreness, fatigue, and practice intensity. No difference was seen in fatigue rate in the line drill, but a trend (P = .07) was observed for a lower fatigue rate for BA compared with P during the Wingate anaerobic power test. A significantly higher training volume was seen for BA in the bench press exercise, and a trend (P = .09) for a greater training volume was seen for all resistance exercise sessions. In addition, subjective feelings of fatigue were significantly lower for BA than P. In conclusion, despite a trend toward lower fatigue rates during 60 seconds of maximal exercise, 3 weeks of beta-alanine supplementation<\/span> did not result in significant improvements in fatigue rates during high-intensity anaerobic exercise. However, higher training volumes and lower subjective feelings of fatigue in BA indicated that as duration of supplementation<\/span> <\/span><\/b> continued, the efficacy of beta-alanine <\/b>supplementation<\/span> in highly trained athletes became apparent.<\/b><\/div>\n<\/div>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

Effects of \u03b2-alanine supplementation on performance and body composition in collegiate wrestlers and football players. J Strength Cond Res. 2011 Jul;25(7):1804-15. Kern BD, Robinson TL. Human Performance and Physical Education Department, Adams State College, Alamosa, Colorado, USA. bdkern@adams.edu Abstract The … Continue lendo →<\/span><\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_uag_custom_page_level_css":"","footnotes":""},"categories":[31,40,41],"tags":[],"class_list":["post-165","post","type-post","status-publish","format-standard","hentry","category-nutricao","category-suplementacao","category-treinamento"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"post-thumbnail":false},"uagb_author_info":{"display_name":"Lucas Guimar\u00e3es Ferreira","author_link":"https:\/\/blog.ufes.br\/lucasgf\/?author=9"},"uagb_comment_info":11,"uagb_excerpt":"Effects of \u03b2-alanine supplementation on performance and body composition in collegiate wrestlers and football players. J Strength Cond Res. 2011 Jul;25(7):1804-15. Kern BD, Robinson TL. Human Performance and Physical Education Department, Adams State College, Alamosa, Colorado, USA. bdkern@adams.edu Abstract The … Continue lendo →","_links":{"self":[{"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=\/wp\/v2\/posts\/165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=165"}],"version-history":[{"count":0,"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=\/wp\/v2\/posts\/165\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ufes.br\/lucasgf\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}