- On floor or mat, place medicine ball between bent knees.
Lie on back with arms extended out to sides. Raise bent legs
so thighs are vertical and lower legs are horizontal.
- Lower legs to one side until side of thigh is on floor. Raise
and lower legs to opposite side. Repeat.
- Maintain knee position throughout movement. For less resistance
do not use additional weight (See Bent-knee
lying Twist without ball). See Spot
Reduction Myth. Also see Lying
Twist with exercise ball.