IM NOT A WEAK PERSON BUT I just feel like this be hard to use and CONTROL . while I be do it it be bounce around all over the place I have to DO VERY SMALL MOVEMENTS or IT FEEL LIKE ITS just all over the place and my husband be like your not do it right ! BUT if I do it the other way it sway front and back I mean you CAN FEEL your muscle work BUT THIS PRODUCT be just not for me