The present invention relates to a hydrate of hydrazine (Hydrangenol) or a water-national genus comprising (the same. HydrangeaThe) present invention relates to a composition for preventing, and treating muscle, diseases, comprising an extract as. an active ingredient for improving muscle function or improving exercise performance. To the present invention, the composition MyoD of Myogenin the present invention improves muscle functions by protecting muscle cells from. muscle, mTOR differentiation p70S6K and development of muscle differentiation and development, and increases muscle, AMPK mass, thereby PGC-1α, SIRT1 increasing muscle. mass, increasing muscle mass, and COX increasing activity for improving endurance by increasing activities of mitochondrial electromigration and synthetic ATG5g1 enzymes. and increasing the activity of the mitochondrial electron-transfer-based activities and synthetic enzymes. Thus, the hydrazine derivatives described in the present specification or noodle (Hydrangenol) comprising the same are disclosed (in U.S. Pat. HydrangeaA) pharmaceutical composition for preventing and treating muscle diseases is, provided to ensure excellent effects of preventing and treating muscle diseases, and to improve muscle, function, and muscle function, and to be used. as a pharmaceutical product as a pharmaceutical product or a cosmetic composition for improving muscle function and improving muscle function.