Both my sons loved "standing" at an incredibly early age. My mother-in-law was horrified and assured us this would cause a bow-legged stance. Our pediatrician confirmed that leg or hip deformation is caused by nutritional deficiencies (vitamin D) or congenital defects, rather than too much weight on developing bones. (So the solution was to not let the boys pretend to stand when Nana was around... easy enough!) Ana's link is great for laying out the issue :) Feel free to let her stand, jump, and bounce.
Ironically, and not necessarily relevant: All that infant standing had no bearing on their eventual walking. My older son was walking at around 11 months, his younger brother waited until almost 15 months. (Their legs were equally strong, but the littler just didn't trust his balance as much.)