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Jackknife Sit-Up

Also: jackknife sit up

Main
Abs
Secondary
Hip flexors
Equipment
Body weight
Level
Intermediate
Movement
Core flexion

How to do it

  1. Lie flat on your back with your legs extended and your arms overhead.
  2. Engage your core and lift your legs and upper body simultaneously, reaching your hands towards your toes.
  3. Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.
  4. Repeat for the desired number of repetitions.

Same movement

See core
45-Degree Bench Side BendAbs · Body weight, BenchAb Wheel RolloutAbs · Ab wheelAlternating Band V-UpAbs · Band

Log it in Minthra

Log every set of Jackknife Sit-Up and watch your best climb, week by week.

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Coming soon to iPhone, Android and Apple Watch.

Exercise data: exercises-dataset (MIT) by Hasan Emir Yıldırım