New inner and outer thigh exercises from R. Marcus Minier of the Sports Club/LA in New York City.

Beginner: Bent-Knee Extension
Targets: Hamstrings (back of thigh)

Lie faceup on floor with arms at sides, knees bent 90 degrees and heels shoulder-width apart on a stability ball.
Lift hips toward the ceiling, being careful not to overarch back.
Hold for 3 counts and lower.
Repeat for 8 to 10 reps.