High-dose medium-term HMB supplementation did not trigger body composition changes in trained and untrained males under usual conditions or high-intensity functional exercise<\/p>\n
Krzysztof Durkalec-Michalski, Magdalena Czlapka-Matyasik, Tomasz Podg\u00f3rski, Ma\u0142gorzata Marchelek-My\u015bliwiec, Paulina M. Nowaczyk<\/p>\n
Abstrakt<\/p>\n
Introduction: \u03b2-hydroxy-\u03b2-methylbutyrate (HMB) supplementation may support fat-free mass (FFM) increase and fat mass (FM) decrease. Its utility has been studied mainly for 3 gHMB\u00b7day\u22121 and long-term supplementation (e.g., 12 weeks). Therefore, new and personalized effective HMB supplementation protocols should be verified. Methods: Ninety trained (TR, n = 53; 29.1 \u00b1 7.7 years; FFM: 84.1 \u00b1 5.1%) and untrained (UTR, n = 37; 32.3 \u00b1 7.6 years; FFM: 75.7 \u00b1 7.7%) males completed the randomized parallel-group placebo (PLA)-controlled study aiming at evaluating the influence of new individualized high-dose mid-term liquid HMB free acid supplementation protocol (90 mgHMB\u00b7kgFFM\u22121 \u00b7day\u22121 ) alone (3 weeks; first period) and combined with high-intensity functional training (HIFT; 3 weeks; second period) on body mass (BM), FFM and FM, and total body water (TBW). The Fight Gone Bad (FGB) workout was an additional HIFT stimuli (2 units\u00b7week\u22121 ). Testing was performed at baseline (BAS) and after the first (SUP) and the second (SUP+FGB) study periods. Results: HMB doses were 4.8\u20137.8 gHMB\u00b7day\u22121 . The intervention had no significant effect on BM, FFM, FM, or TBW. BM, FFM (kg), TBW, and TBW\/FFM were higher at SUP+FGB vs. BAS regardless of the implemented treatment and training status. Nevertheless, there was an impact (p < 0.05) from training status (but not HMB\/ PLA) on FM (kg; slight increases in UTR) and TBW (slight decreases in UTR). Discussion: The individually adjusted high HMB dose did not change body mass and composition in trained or untrained individuals during a three-week exclusive supplementation or three-week supplementation in combination with additional HIFT stimuli. Therefore, any modifications in this area may likely require a longer treatment period.<\/p>\n
S\u0142owa kluczowe: beta-hydroxy beta-methyl butyrate acid, ergogenic support, nutrition, sports dietetics, personalized supplementation<\/p>\n
Front. Nutr., doi.org\/10.3389\/fnut.2025.1681465<\/p>\n","protected":false},"excerpt":{"rendered":"
High-dose medium-term HMB supplementation did not trigger body composition changes in trained and untrained males under usual conditions or high-intensity functional exercise Krzysztof Durkalec-Michalski, Magdalena Czlapka-Matyasik, Tomasz Podg\u00f3rski, Ma\u0142gorzata Marchelek-My\u015bliwiec, Paulina M. Nowaczyk Abstrakt Introduction: \u03b2-hydroxy-\u03b2-methylbutyrate (HMB) supplementation may support… Czytaj dalej<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[20],"tags":[],"_links":{"self":[{"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/posts\/2428"}],"collection":[{"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/comments?post=2428"}],"version-history":[{"count":1,"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/posts\/2428\/revisions"}],"predecessor-version":[{"id":2429,"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/posts\/2428\/revisions\/2429"}],"wp:attachment":[{"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/media?parent=2428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/categories?post=2428"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www1.up.poznan.pl\/kzcid\/wp-json\/wp\/v2\/tags?post=2428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}