hanging straight twisting leg hip raise

hip raise (bent knee)

incline leg hip raise (leg straight)

incline twisting sit-up

jackknife sit-up

janda sit-up

kettlebell advanced windmill

kettlebell bent press

kettlebell double windmill

kettlebell figure 8

kettlebell windmill

landmine 180

leg pull in flat bench

lever kneeling twist

lever seated crunch (chest pad)

lever seated leg raise crunch

lying leg raise flat bench

negative crunch

oblique crunches floor

one arm slam (with medicine ball)

otis up

pull-in (on stability ball)

push-up to side plank

russian twist