Jackknife Sit Up
🏋️ Calisthenics / Bodyweight · Core
Log it by text
Reps
/jackknife_sit_up 15also valid:
/jackknife-sit-up 15 · /jackknife sit up 15Sets × Reps
/jackknife_sit_up 3x10also valid:
/jackknife-sit-up 3x10 · /jackknife sit up 3x10 · /log jackknife_sit_up 3x10Sets × Reps @ Weight
/jackknife_sit_up 3x10@45also valid:
/jackknife-sit-up 3x10@45 · /jackknife sit up 3x10@45 · /log jackknife_sit_up 3x10@45Underscores, dashes, and spaces are interchangeable — every spelling above logs the same exercise.
Demonstration
Demo: Jackknife Sit-Up — © Gym visual
How to perform
🎯 AbsHip Flexors🛠 Body Weight
- Lie flat on your back with your legs extended and your arms overhead.
- Engage your core and lift your legs and upper body simultaneously, reaching your hands towards your toes.
- Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.
- Repeat for the desired number of repetitions.
Related Calisthenics / Bodyweight exercises
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