# Frog Crunch Hold - Canonical: https://fitwill.app/exercise/7992/frog-crunch-hold/ - Media ID: 7992 - Primary muscle: Abs - Body part: Core - Equipment: Exercise Mat - Video: https://fitwill.app/videos/7992/frog-crunch-hold.mp4 ## Description The Frog Crunch Hold is a body weight abdominal exercise performed lying on your back with the soles of your feet pressed together and your knees dropped open to the sides, in a frog or butterfly leg position. From there, you curl your torso upward and reach your arms forward to touch or reach toward your feet, then hold that contracted position. The name tells you exactly what makes this movement different from a standard crunch: the turned-out leg position changes how your hips and inner thighs contribute, and the hold turns a quick rep into an sustained challenge for your midsection. The main target is the rectus abdominis, the front wall of your abs, which works to flex the spine as you curl up. Because your legs are bent with knees wide, your hip flexors assist in holding the legs in place, and the inner thigh muscles stay active to keep the soles of the feet together. The extended reach of the arms lengthens the lever and makes the contraction at the top noticeably harder than a crunch with hands beside your head. The obliques work to keep your torso lifting evenly rather than twisting to one side. Setup matters more than most people expect. Because there is no equipment to stabilize you, the floor contact points—your lower back, the outer edges of your hips, and your arms—control everything. If your legs drift or your feet separate, the tension leaks out of the position and the hold becomes easy for the wrong reasons. Lying on an exercise mat makes the position comfortable on your tailbone and spine, which matters because you will be resting your body weight on the back of your pelvis during the hold. To execute it well, think of peeling your shoulder blades off the floor one segment at a time rather than yanking your head forward. Keep your neck long, reach with your fingertips toward your feet or ankles, and squeeze the abs hard at the top. The hold should feel like a deliberate contraction you can breathe through, not a straining scramble. Ten to thirty seconds per hold is a reasonable working range, repeated for two to four sets. This exercise fits well into home workouts and core finishers because it needs nothing more than floor space. It is useful for people who find regular crunches too easy, for anyone who wants to build endurance in the abs for sports or daily posture, and for trainees who enjoy controlled isometric work. It also pairs naturally with other floor core drills since you never have to stand up or change equipment. A few safety points are worth keeping in mind. Move into the top position under control and avoid pulling on your head or neck with your hands. If your lower back feels pinched rather than your abs working, reduce the hold time or lift your legs slightly off the floor toward your chest. And if a hold causes discomfort in your hips or groin from the turned-out leg position, let your knees rise a little higher so the stretch across the inner thighs is less aggressive. ## Instructions 1. Lie flat on your back on an exercise mat with your legs bent and the soles of your feet pressed together, letting your knees fall open to the sides in a frog position. 2. Extend both arms straight overhead behind you with your palms facing up, keeping a small gap between your upper arms and the floor. 3. Draw your belly button in gently and brace your abs before moving, so your spine is supported before you lift. 4. Exhale and curl your head, shoulders, and upper back off the floor, reaching your arms forward toward your feet. 5. Continue the curl until your arms are roughly parallel to your thighs and your hands can touch or reach toward your feet or ankles. 6. Hold the top position with your abs fully contracted, keeping your feet together and your knees relaxed and wide. 7. Breathe steadily during the hold—short, controlled breaths through the nose and mouth—rather than holding your breath. 8. Lower your torso back down slowly, one vertebra at a time, until your shoulder blades and then your head return to the mat. 9. Reset your leg position and arm reach, take a breath, and start the next hold or finish your set. ## Tips & Tricks - If your feet keep sliding apart during the hold, actively press the soles together instead of just resting them against each other—that small squeeze also keeps your inner thighs engaged. - A common mistake is jerking the torso up with momentum and then sinking within a second or two. Curl up slower than feels necessary and you will get a much longer, cleaner hold. - Keep your chin slightly tucked, as if holding a small fruit under it. Leading with the head strains the neck and shortens the work your abs actually do. - Do not let your knees drift upward toward your chest as you tire. The wide, dropped knee position is what makes this a frog crunch instead of a regular tuck crunch. - Reaching the arms fully overhead in the start position makes the curl harder because the lever is longer. If the hold is too difficult, start with your arms beside your thighs and reach only from there. - Shake or trembling at the top is normal for a hold, but if your lower back starts arching off the mat, end the set rather than pushing into that position. - If your hips or groin feel pinched in the frog leg position, place a folded towel under the outer thighs to reduce the stretch on the inner thighs. - Rest about 30 to 45 seconds between holds so each set starts with fresh abs; sloppy, half-height holds train very little. - Since the hands are free, resist the urge to grab your legs and pull yourself higher—the reach should come from your abs, not your arms. ## Frequently Asked Questions ### What muscles does the Frog Crunch Hold work? The primary muscle is the rectus abdominis, the front wall of your abs, which lifts and holds your torso in the curled position. Your hip flexors and inner thigh muscles assist by holding the frog leg position, and the obliques help keep your torso lifting straight. ### Why are the soles of the feet pressed together in this exercise? The turned-out, frog-style leg position opens the knees and changes the pull on the hips compared with a normal crunch. It keeps the legs stable without needing to anchor your feet, adds light work for the inner thighs, and lets you hold the top position without your legs flopping around. ### Is the Frog Crunch Hold suitable for beginners? Yes, with adjustments. Beginners can shorten the hold to 5 to 10 seconds, start with the arms alongside the thighs instead of overhead, or let the knees sit a little higher so the inner thigh stretch is milder. The movement itself requires no equipment or coordination beyond a basic curl. ### How long should I hold the top position? Most people do well with 10 to 30 seconds per hold for 2 to 4 sets. Choose a duration where you can keep your shoulder blades well off the floor and breathe steadily the whole time—if the hold collapses after a few seconds, shorten it. ### Why do I feel the Frog Crunch Hold more in my neck than my abs? This usually means you are leading the curl with your head or pulling it forward. Keep your chin gently tucked, let the abs drive the lift, and support your head lightly with your fingertips only if needed rather than pulling on it. ### What can I substitute if the frog leg position bothers my hips? Bend your knees and place your feet flat on the floor closer together, or do a standard crunch hold with knees bent and feet down. You keep the same upper-body curl and hold while removing the inner thigh stretch entirely. ### How is the Frog Crunch Hold different from a regular crunch? Two things: the legs are in a butterfly-style position with soles together and knees wide, and the emphasis is on an isometric hold at the top rather than repeated reps. The overhead arm start also lengthens the lever, making the curl and the hold harder than a standard crunch with hands by your head. ### Can I make the Frog Crunch Hold harder once it feels easy? Yes. Lengthen each hold toward 30 to 45 seconds, keep the arms fully extended overhead through the whole curl, or slow the lowering phase down to 3 to 4 seconds so the abs work eccentrically as well as isometrically. ### Is it safe to do this exercise every day? For most people, daily low-volume holds are fine since it is a body weight movement, but your abs still need recovery like any muscle. Two to four sessions per week is plenty for progress, and you should skip a day if your midsection is still noticeably sore.