The aim of this study was to investigate the anabolic potential of novel heterosteroids in human skeletal muscle cells. A library of new heterosteroids was synthesized by selectively modifying the A and B rings of steroidal sapogenins (diosgenin, sarsasapogenin, and hecogenin), with six library members (S1, D3, D5, D7, D8 and D13) subsequently tested in vitro. Compound selection was based on computational modeling intracellular signaling pathways regulating muscle hypertrophy and atrophy, coupled with pharmacological potential evaluation using cheminformatics tools. The anabolic activity of these compounds was evaluated in the ATCC PCS-950-010 HSkM cell line, which represents normal human skeletal muscle cells. Among the compounds tested, D5 and D7 increased protein synthesis by approximately 22 % and 14 %, respectively. Compound D8 exhibited the most pronounced effect, increasing cell proliferation by approximately 50 %. Molecular docking and microarray analyses confirmed that D8 stimulates anabolism through AKT, ERK and MAPK activation, revealing the complex interplay between MAPK, PI3K and GPCR signaling pathways in the regulation of muscle cell proliferation. These findings suggest that compounds D8, D5, and D7 warrant further investigation in the context of muscle anabolism as potential therapeutic agents for targeting muscle atrophy.