CoreReps OnlyRated 4 out of 10

Jack-knife Floor

Log every set of the Jack-knife Floor and watch your strength climb. Get W8M8 free and track this exercise in seconds.

Download on the App StoreGet it on Google Play
Animated demonstration of the Jack-knife Floor

How to do the Jack-knife Floor

  1. 1Lie on your back with your arms extended overhead and legs straight.
  2. 2Simultaneously lift your legs and upper body towards each other, reaching your hands towards your feet.
  3. 3Lower your arms and legs back to the starting position in a controlled manner.

Muscle group

Core

Type

Reps Only

Equipment

None needed

TRACK THE JACK-KNIFE FLOOR IN W8M8

Add this exercise to a routine, log your sets and reps, and let our AI help you get stronger with W8M8 Pro. Free to download and track your workouts.

Download on the App StoreGet it on Google Play

MORE CORE EXERCISES

Roll Ball Iliacus demonstration

Roll Ball Iliacus

Roll Ball Lumbar Diagonal demonstration

Roll Ball Lumbar Diagonal

Straddle Planche demonstration

Straddle Planche

Two-Legged Inverted Staff Pose Dwi Pada Viparita Dandasana demonstration

Two-Legged Inverted Staff Pose Dwi Pada Viparita Dandasana

Abdominal 4 Points demonstration

Abdominal 4 Points

Arm-Sling Hanging Bent Knee Leg Raise demonstration

Arm-Sling Hanging Bent Knee Leg Raise

Assisted Lying Leg Raise (w/ Lateral Throw Down) demonstration

Assisted Lying Leg Raise (w/ Lateral Throw Down)

Assisted Oblique Stretch demonstration

Assisted Oblique Stretch

All Core exercises