Prisoner Half Sit-up (male)
Also known as: prisoner half sit-up
Built around pure bodyweight leverage, Prisoner Half Sit-up (male) fits at the end of any workout and builds a trunk that resists rather than folds.
How to do Prisoner Half Sit-up (male)
- Lie flat on your back with your knees bent and feet flat on the ground.
- Place your hands behind your head with your elbows pointing outwards.
- Engaging your abs, slowly lift your upper body off the ground, curling forward until your torso is at a 45-degree angle.
- Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
- Repeat for the desired number of repetitions.
Prisoner Half Sit-up (male) Sets and Reps by Goal
Strength
3 sets of 6-8 hard reps with 2 minutes of rest. Hold the end position for a beat once reps come easily.
Hypertrophy
3 sets of 10-15 reps with 60-90 seconds of rest. Add reps first, then slow the lowering phase.
Endurance
2-3 sets of 20-25 reps with 45 seconds of rest. Change leverage or elevation before you add load.
Common Prisoner Half Sit-up (male) Mistakes
Adding reps forever instead of making the movement harder
Change leverage, elevation, or tempo once you clear your rep range.
Holding your breath through the hardest part of the rep
Exhale as you brace so the ribs stay down and pressure stays controlled.
Easier and Harder Than Prisoner Half Sit-up (male)
Swap Prisoner Half Sit-up (male) For
Prisoner Half Sit-up (male) — Frequently Asked Questions
How do you do the Prisoner Half Sit-up (male)?
Lie flat on your back with your knees bent and feet flat on the ground. Place your hands behind your head with your elbows pointing outwards. Engaging your abs, slowly lift your upper body off the ground, curling forward until your torso is at a 45-degree angle. Use your bodyweight only and keep the movement controlled through the full range. The animated GIF above shows the complete rep at normal speed.
What muscles does the Prisoner Half Sit-up (male) work?
The Prisoner Half Sit-up (male) primarily targets the abs. It is classified as a core exercise and is performed with your bodyweight only.
How many sets and reps of the Prisoner Half Sit-up (male) should I do?
For muscle growth: 3 sets of 10-15 reps with 60-90 seconds of rest. Add reps first, then slow the lowering phase. Adjust the load rather than the rep target if form breaks down before the final rep.
Is the Prisoner Half Sit-up (male) good for beginners?
Yes. The Prisoner Half Sit-up (male) is a beginner-level movement, so it is a reasonable place to start. Keep the load light enough that you can control every rep and stop 2-3 reps short of failure while you learn the pattern.
What can I do instead of the Prisoner Half Sit-up (male)?
Try the Band Standing Crunch, Cable Seated Crunch or the Lever Seated Leg Raise Crunch. Each trains the abs with a similar movement pattern, so you can swap based on the equipment you have available.
Is the Prisoner Half Sit-up (male) the same as the prisoner half sit-up?
Yes. The Prisoner Half Sit-up (male) is also commonly called the prisoner half sit-up. Different gyms and training programs label it differently, but "prisoner half sit-up" refer to this same movement.
