i dont mean like extreem visble diference but till i can feel a diference when i do these(i do them every day) Core1.Planks (30 sec set)2.Twisting Crunch (30 second set)3.Leg lifts (on back 30 seconds) (lay on back and lift both legs together)4.Bicycle (30 seconds)5.V-ups (30 seconds)6.Repeat twiceLowe body1.Leg curls (30 seconds)2.Wall sits (30 seconds)3.Lunges ( 30 seconds )4.Squats (30 seconds)5.Box balance (30 seconds) (standing on the edge of a box/ stair and balence) 6.Repeat twice