The most effective way for women too tighten and tone is WEIGHTS... lifting weights 3 x week — muscle burns FAT and muscle takes up less
space than FAT — and when ur lifting — for the next 48 hrs (onbetween weight training / your body is still burning calories — unlike cardio (which u are only burning while ur doing it) so much has been proven that indeed weights will shrink ur frame
yet you will look leaner — so throw away the scales and buy tape measure — and every two weeks measure yourself (first thing in morning) you want compound moves, and minimal rest onbetween sets — any reputable PT should be able too write you up a good
programme on this which u can easily do on ur own at local gym.