Wii Sports Wiki

Not to be confused with Jackknife.

The Jackknife Challenge is a Strength exercise in the Wii Fit series.


Lay down on your back to start.

Bring your towards you until your thighs are aimed straight upwards.

Bend your ankles forward a bit.

Bring your head up until you are directly facing your legs.

Bring your arms forward to touch your shins.

Go back down and repeat this exercise.

Try to do more than your trainer

Purpose of exercise

This exercise helps to strengthen your abdominal muscles and to promote flexibility in your neck.

Strength Training
Single Leg ExtensionSideways Leg LiftArm and Leg LiftSingle-Arm StandBalance BridgeTorso TwistsRowing SquatSingle Leg TwistLungeSide LungePush-Up and Side PlankJackknifePlankTricep ExtensionPush-Up ChallengePlank ChallengeJackknife Challenge
Training activities
YogaBalance GamesAerobics