Exercises For A Slim Waist & Thighs

Core training exercises will slim and firm your thighs and stomach. Do core training exercises for your abs, abductors (outer thighs) and adductors (inner thighs) in addition to cardio and you'll see results. The Centers for Disease Control and Prevention (CDC) recommend a minimum of 150 minutes of cardio exercise, such as walking or running, per week; that and a sensible diet will help keep off excess pounds so you don't sabotage your efforts.

Ball Bicycle Crunches

The ball bicycle crunches exercises tone the muscles of your obliques and your inner thighs. The inner thighs, also called your adductors, work to hold a stability ball between your thighs. Your abs and obliques perform a crunching motion with a twist that works the obliques to rotate your spine. Adding the movement of twisting your hips in the opposite direction makes this exercise particularly effective for the waist and thighs.
Perform the exercise lying on your back with your legs straight in the air toward the ceiling. A stability ball is squeezed between your lower legs, which engages your adductors. Place your hands behind your head and raise your head and shoulders off the floor. Twist your shoulders to the right and your hips to the left, which brings your right shoulder toward your left knee. Lie back down and twist your hips back to center. Finish one rep by repeating the movement, but twisting your hips and shoulders in the opposite direction.

Seated Oblique Crunch

The seated oblique crunch targets the oblique muscles in a seated position. A chair, bench or a stool will work as long as your feet can reach the floor. The muscles of your thighs and hip flexors are strengthened as you raise your knees into the air.
Do the exercise by sitting on a flat surface with your knees bent and your feet flat on the floor. Place your hands behind your head with your elbows opened to the sides. Sit up straight. Then, lift your right knee toward your twist and simultaneously twist your shoulders to the left. Your left elbow will come close to your right knee, but do not try to make them touch. Return your leg to the floor and turn your shoulders to face forward. Now, lift your left leg and twist to the right so you work both sides equally.

Side Crunch with Leg Lift

The side crunch with leg lift exercise works your outer thighs and obliques as you both laterally flex your spine and raise your leg. Lateral flexion simply means leaning or bending to the side. The obliques both laterally flex and rotate the spine, as in the bicycle crunches.
Lie sideways on the floor with your legs straight to begin this exercise. Start on your right side with your right arm across your chest and your head on the floor. The left leg lies directly on top of the right. The left arm is bent with your palm behind your head. This is the starting position. From there, raise your left leg toward the ceiling and raise your head and shoulders off the floor. Bring your upper body toward your left hip. Return to the starting position. Repeat the exercise, lying on your left side.