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The purpose of the study is to determine whether there is a synergistic effect via combining both low-load blood flow restriction (BFR) training and betaine supplementation loading (6g/day for 14 days) on skeletal muscle anabolic signaling pathways that is mediated by enhancements in intracellular water. These effects are proposed to be greater than either BFR training or betaine supplementation alone or compared to control conditions (high-load non-occluded and/or placebo supplementation).
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The purpose of the investigation is to determine whether the combination of blood flow restriction (BFR) training and betaine supplementation can synergistically augment phosphorylated targets associated with mechanotransduction and/or muscle protein synthesis relative to either modality alone and compared against control conditions (standard "high-intensity" resistance training and placebo supplementation) in healthy young males. Secondly, the investigators aim to determine if any potential synergistic effects are mediated by enhanced intracellular fluid volumes, as determined by the changes in water content between hydrated and dehydrated muscle samples, as well as through changes in both muscle and serum betaine concentrations. Finally, the investigators aim to assess differences in the aforementioned interventions on specific gene targets, the betaine/γ-aminobutyric acid transporter, myosin heavy chain I, IIa, and IIx lactate dehydrogenase A. Therefore, the specific aims of this study are to determine in healthy, young males: 1) whether combined BFR training and betaine supplementation significantly augment mechanotransductive growth-associated post-translational protein modifications via extra-to-intracellular fluid flux, alongside 2) potentially altered gene expression that otherwise characterizes phenotypical/biochemical changes in skeletal muscle.
The specific aims of the study are to determine whether:
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20 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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