Large chest muscle forging Yutaka chest tool

摘要

Topic Large chest muscle is forged and the rich breast of the woman is formed and maintaining the breast whose beauty care upper forma is good offers possible large chest muscle forging Yutaka chest tool.SolutionsThe operator regarding to itself chest, jostles the base substance which was formed with elastic body mutually when the both hands are opened and isometric trick motion (and so on shaku Characteristic contraction) does, for the operator to do iso tonic motion (isotonic contraction), with the both hands it grips the base substance from left and right and attracts, that state after several seconds maintaining, it relaxes. Large chest muscle forging Yutaka chest tool of this device iso tonic motion (isotonic contraction) with isometric trick motion (and so on shaku Characteristic contraction) with one instrument can exercise two types which are said. Choice figure Drawing 1