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Janda Sit-Up

The Janda Sit-Up primarily targets your Abdominals. It requires bodyweight and is best suited to beginner lifters.

Beginner level · Equipment: Bodyweight · Isolation · Pull

Primary muscles: Abdominals

How to perform Janda Sit-Up

  1. Step 1. Position your body on the floor in the basic sit-up position; knees to a ninety degree angle with feet flat on the floor and arms either crossed over your chest or to the sides. This will be your starting position.
  2. Step 2. As you strongly tighten your glutes and hamstrings, fill your lungs with air and in a slow (three to six second count) ascent, slowly exhale. Tip: It is important to tighten the glutes and hamstrings as this will cause the hip flexors to be inactivated in a process called reciprocal inhibition, which basically means that opposite muscles to the contracted ones will relax.
  3. Step 3. As you inhale, slowly go back in a controlled manner to the starting position.
  4. Step 4. Repeat for the recommended amount of repetitions.

Frequently asked questions

What is the primary benefit of the Janda sit-up compared to a standard sit-up?

The Janda sit-up isolates the rectus abdominis by using reciprocal inhibition to deactivate the hip flexors. By tensioning the hamstrings and glutes, you force the core to perform the work without assistance.

How do I maintain proper form during the movement?

Press your heels firmly into the floor and pull them toward your glutes to engage the posterior chain. Keep your lower back pressed into the ground and exhale as you curl your torso upward.

What is a common mistake to avoid when performing Janda sit-ups?

The most frequent error is allowing the heels to lift or the hip flexors to take over the lift. If you cannot rise without your feet moving, reduce the range of motion or use a partner to provide resistance.

How can a beginner progress toward a full Janda sit-up?

Start with Janda crunches, where you only lift the shoulder blades while maintaining hamstring tension. You can also use a resistance band around the calves to help pull the heels back and engage the correct muscles.

How should I program Janda sit-ups into my routine?

Perform 3 to 5 sets of 5 to 10 controlled repetitions due to the high intensity of the contraction. Focus on a slow eccentric phase and maximum tension rather than high volume.

Sample sets & reps for Janda Sit-Up

  • Beginner endurance: 3 sets × 8-12 reps, 60-90s rest. RPE 6-7, leave 3 reps in reserve.
  • Hypertrophy: 4 sets × 12-20 reps, 60s rest. RPE 8, last set to failure.
  • Conditioning: 3-5 sets × AMRAP for 30-45s, 30-60s rest. Steady pace, controlled tempo.

Pick the scheme that matches your goal. Beginners should start at the lower end of every range; progress weight only when you hit the upper end of the rep range with one or two reps in reserve.

Related Abdominals exercises

  • Ab Crunch Machine — machine
  • Ab Roller — other
  • Advanced Kettlebell Windmill — kettlebell
  • Barbell Ab Rollout — barbell
  • Barbell Ab Rollout - On Knees — barbell

See all Abdominals exercises →

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