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Frog Sit-Up

PullIsolationBodyweightIntermediate
Frog Sit-Up — Starting positionFrog Sit-Up — End position

Muscles worked

Front
Abdominals

Instructions

  1. 1Lie with your back flat on the floor (or exercise mat) and your legs extended in front of you.
  2. 2Now bend at the knees and place your outer thighs by the floor (or mat) as you make the soles of your feet touch each other.
  3. 3Now try pushing both soles and bringing them up as near you as possible while you keep the outer thighs on the floor (or at least almost touching it). Tip: In this position your legs should create a diamond shape.
  4. 4Now, cross your arms in front of you by touching the opposite shoulders. This will be your starting position.
  5. 5As you exhale flatten your lower back to the floor while curling the torso upwards. Tip: This will be like performing the first 1/4 movement of a sit up. Hold at the top position for a second.
  6. 6As you inhale, slowly lower back to the starting position.
  7. 7Repeat for the recommended amount of repetitions.

table_chartRecommended sets and reps

These ranges vary depending on your training goal — adjust the load accordingly.

GoalSetsRepsRest
boltStrength3–46–82–3 min
fitness_centerHypertrophy3–410–1560 s
timerEndurance2–315–2030–45 s

About Frog Sit-Up

The frog sit-up positions the legs in a frog-like stance, soles of the feet together and knees splayed, changing the working angle compared to the classic sit-up while lightly engaging the adductors in addition to the abs. It's an original variant that breaks the routine of the traditional sit-up while remaining an accessible, equipment-free exercise.

check_circleBenefits

  • check_circleDifferent working angle than the classic sit-up
  • check_circleLightly engages the adductors in addition to the abs
  • check_circleOriginal equipment-free variant to break the routine

lightbulbExecution tips

  • lightbulbKeep the soles of the feet together throughout
  • lightbulbCurl the torso from the lower back first
  • lightbulbExhale hard on each contraction at the top

warningCommon mistakes

  • warningSoles of the feet separating during the movement
  • warningUsing arm momentum to pull the torso
  • warningToo fast a movement that neglects the contraction

helpFrequently asked questions

Why this particular leg position?expand_more

It stabilizes the lower body differently and adds a light adductor engagement compared to the classic sit-up.

Is this exercise harder than the classic sit-up?expand_more

The difficulty is similar; the main point is to vary the stimulus and the muscle feel.

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