My coursesSpanishAdd a new courseJust a Task0 day streakDo a lesson today to start a new streak!SMTWTFSStreak SocietyReach a 7 day streak to join the Streak Society and earn exclusive rewards.View moreGemsYou have 500 gemsGo to shopHeartsYou have full heartsKeep on learningUnlimited heartsGet SuperRefill hearts350
Back

Exercise preview

Oblique jackknife

Intermediate10 repsNo jumping

Muscles worked

Obliques

You need

No equipment

How to do it

  1. Lie on your side, legs straight, hand behind head.
  2. Lift both legs and upper body simultaneously.
  3. Squeeze obliques, then lower back down. Repeat on both sides.