July 14, 2026 / by Aerial Edge / In circus-training

How to get a front split: find what's stopping you, then train that

This article sets out how we train the front split at Aerial Edge: a short self-assessment that tells you which side of the split is holding you back and why, then the drills that answer each result. It is written for adults.

Most front-split advice hands you a stretching routine and tells you to be consistent. Consistency matters, but a routine only helps if it trains the thing that is actually limiting you, and that differs from person to person. Two people can be stuck at the same depth for opposite reasons.

What the front split asks of your body

The front split works two opposite positions at once. The front leg is in hip flexion, so the hamstring has to lengthen. The back leg is in hip extension, so the hip flexor and quad have to lengthen. Either side can hold the split back, or both.

Each side can also be held back for either of two reasons. The tissue may be too tight, which needs stretching, or the muscle may be too weak at that range, which needs strengthening. That gives four possible limiters: front leg tight, front leg weak, back leg tight, back leg weak. A split that has been stuck for months usually means the work you are doing does not match your limiter.

The strength half matters for a second reason. A passive split you cannot produce or hold with your own muscles is of little use on an apparatus. Strength at the edge of your range is what makes the split usable, on the floor and in the air.

Test before you train

The assessment separates too tight from too weak, on each leg, so your training time goes on the real limiter. It takes one short session, and you repeat it every month or so as your baseline.

Why you test cold

Every assessment position is done without warming up first, for two reasons. First, you want the range you can access cold, because that is the range that is there whenever you need it; a warm-up borrows temporary extra range and flatters the number. Second, a cold baseline standardises the test. A warmed-up reading drifts with how thorough the warm-up was, so month-to-month comparisons stop meaning anything.

The cold rule applies to the test only. The drills later in this article are trained warm, after a proper warm-up. Never train your split cold.

Make the numbers comparable

• Film yourself on your phone, placed on the floor and propped against a wall or an object, the same way up each time. A partner holding the phone at a different height changes the perspective and breaks the comparison with future readings.
• For the two split positions, set the camera square-on to your hips, looking at the centre of your body. For the back-leg positions, set it to the side of the back leg.
• Score each position as your average depth across the hold, rather than the deepest instant you touch. Record the position for the full hold time.

The five test positions

1. Passive front split, 30 seconds. Slide into your split with your hands or blocks taking some of the weight. Keep the hips square, both hip bones pointing forward. Once the hip turns out, that is your limit for this test, even if your eventual goal is a more open position.
2. Isometric front split, 30 seconds. The split held without your hands taking the weight. Pick a depth you can just hold for 30 seconds. Light support for balance is fine; support that carries your weight hides the real number.
3. Back-leg positions, 15 seconds each. Three positions read the back-leg hip flexor and quad: a couch stretch with the knee close to a wall (note whether the knee reaches the wall), a lunge with the back foot down on the floor, and lying face down with the knee bent and the foot lifted toward the ceiling, foot roughly above the knee. Test both legs.
4. Single-leg standing pike, 15 seconds. The passive front-leg reading. Hinge over a straight front leg and reach down the leg. Note the furthest point you can hold, and use the same reference points on your leg each time so next month’s reading compares like with like.
5. Standing leg lift, 15 seconds. The active front-leg reading. With both legs straight, lift the front leg as high as you can and note the height.

Reading your results

Positions 1 and 2 give the whole-split picture, passive against active. Positions 3 to 5 break it into parts: position 3 reads the back leg, and positions 4 and 5 read the front leg passively and actively. Together they show which of the four limiters is the brake, and each result points at specific drills:

• Back-leg hip flexor tight (the couch stretch and lunge were your worst positions): the couch stretches and the isometric front split.
• Back-leg lift weak: the kneeling needle.
• Front-leg hamstring tight (the standing pike was your worst): regular hamstring stretching plus the front split slides.
• Front leg weak in the air (you fold much further in position 4 than you can lift in position 5): active leg lifts and the kneeling needle.
• Quad limiting the back leg (the face-down knee bend was the hard one): reverse Nordic curls and the hips-high couch stretch.
• The split is there but will not hold: split squats and the isometric front split.

Re-run the assessment every month or so, cold, with the same camera setup. If the numbers are moving, keep going. If they stall for several weeks, change the drill, or check your recovery; the dosing section below covers both.

The drills

Warm up before all of these. Every drill should produce gentle tension in the working muscle, never pain, and pain in a joint means stop now and reassess.

Isometric front split

The highest-yield front-split drill: a standing front split with the front knee bent, like a long lunge. It needs no equipment and scales from beginner to advanced, because stance length sets the difficulty. Shorter is easier, longer is harder.

Keep the back leg straight, or very close to it. If the back knee bends, the stance is too long for now; shorten it. Squeezing the back-leg glute takes you deeper into hip extension. Keep the hips square, both hip bones pointing forward, and think about drawing the front thigh back into the hip; check yourself in a mirror or on video, because the hips will drift open on their own. Stay upright. Folding the torso forward takes the emphasis off the hip flexor, which is why any hand support goes on something tall, like a door frame, and never on your knees.

Hold for time, and make the hold active: drive the back leg down into the floor as if you were about to kick. Progress by holding longer, or by setting the feet slightly wider than last session.

Couch stretch, two ways

Set up in a kneeling lunge with the back foot pinned against a wall or a couch corner for stability, a pad under the back knee, and the front foot turned out a little, somewhere between 5 and 15 degrees. A forward-facing front foot forces most people’s hips to twist.

Hips low targets the back-leg hip flexor. Get the hips low while keeping the torso upright, then tuck the pelvis under by squeezing the back-leg glute and keeping the chest high. Leaning forward gives the stretch away, so stay tall. To make it easier, move the back knee further from the wall. Once the unloaded position is comfortable and controlled, you can hold a light dumbbell over the shoulder of the stretching side: just enough weight to settle slightly deeper, never so much that you lose the position.

Hips high targets the quads, and with the pelvis tucked it reaches the rectus femoris, the quad muscle that also crosses the hip. From the same setup, send your glute back toward the heel of the pinned foot, aiming for the thigh to touch the calf, then add the same pelvic tuck. Both versions work as straight holds, relaxed holds, or contract-and-relax cycles.

Front split slides

A dynamic drill that many students use to finish a session, and it can produce a first touch to the floor. Put a slider under the front heel, with a support either side; chairs work to start, and lower supports make it harder.

Keep the hips square and slide down under control by pressing the front heel into the slider. Keep the front toe neutral or slightly pointed, which takes the calf out of the movement so the hamstring can lengthen. To come back up, press the back knee into the floor and contract the hip flexors to pull yourself back up. Work it as short contract-and-relax cycles at moderate effort, around 50 to 60 per cent of a maximal squeeze. The contraction is there to pull you deeper under control; never bounce or use momentum at the bottom of a split.

You can also tune what you feel through your torso angle: sitting taller biases the front-leg hamstring, leaning slightly forward biases the back-leg hip flexor. Aim to feel both about equally.

The strength drills

Reverse Nordic curls strengthen the quads, especially the rectus femoris, in their lengthened position. Kneel with the knees and ankles padded, push the hips forward and keep pushing them forward, then bend the knees and lean back, keeping a continuous curve from knees to neck, hips forward and torso back. A band from an overhead anchor makes it easier, and so does shortening the range by reaching back to a raised object. A caution that comes with this drill: it puts a lot of torque through the knee, and connective tissue adapts more slowly than the nervous system, so progress it gradually. If you have any history of knee problems, build up especially slowly.

Split squats load the whole split shape: a single-leg squat from a stride stance, front foot turned out a little, descending to a full knee bend with the back leg kept as straight as you can. They build the strength that makes a deep split holdable. Start with dumbbells rather than a barbell; they are easier to balance and safer to drop. If you progress to a barbell, set safety pins to catch it, and stop every set short of failure.

The kneeling needle trains the active side of the back leg: the glutes and hamstrings that lift the leg into hip extension. On forearms and knees, round your back and keep it rounded so the lift comes from the legs and hips, then lift the straight back leg through glute power and keep actively lifting toward your best height. Bending the knee makes it much easier, and it is one or the other, fully straight or fully bent. Ankle weights are the top progression, added only after clean bodyweight repetitions and starting light. If the glute or hamstring cramps, drop the leg, shake it off and continue; if it cramps set after set, make the drill easier rather than repeating the cramp. Pain, as opposed to cramp, is a stop signal.

How often, and when to back off

Stretch each target muscle group at least 2 to 3 times a week; consistency is what drives progress (Thomas et al. 2018). For a split goal we recommend up to five days a week with two rest days, shaped as daily low-intensity mobility plus a couple of harder targeted sessions. Hold static stretches around 30 seconds, building toward 60 over time. The total volume across the week is what moves your range; a single longer hold on its own adds little.

There is no fixed weekly amount that is right for everyone. The strongest meta-analysis of long-term stretching found no clear dose-response, and noted its findings may not apply to people chasing extreme range (Warneke et al. 2023). So dose by your own response:

• Gaining range and recovering well, no nagging soreness. Add a little: more time in the positions first, then another set, then another session. One change at a time, then read the response again.
• Stalled for several weeks. Change the drill or the emphasis before adding minutes, and check sleep, life stress and your other training. A plateau is usually a recovery limit.
• Soreness still there at the start of the next session, or less range than last time for two or more sessions running. Cut the dose or take a lighter week.
• Pain in a joint, as opposed to stretch in the muscle. Stop now and reassess before you continue.

Expect a non-linear climb. A large share of early flexibility gain is your nervous system raising its tolerance to stretch rather than the tissue lengthening (Weppler & Magnusson 2010), so progress shows over weeks, and a flat session tells you very little on its own.

Where this leads

The assessment tells you what to train, and the drills answer it. That loop of test, train the limiter and re-test is the whole method. A coach speeds it up, because it is easy to misread your own footage, and the right starting dose is individual. If you want to train it with people who coach exactly this approach, our adult flexibility classes are where that happens.

If you are newer to splits training in general, how to get the splits as an adult covers the ground underneath this article: active against passive range, end-range strength, and why adults gain range at any age. Does stretching actually prevent injury? and can you get flexible in your 50s, 60s and 70s? are the natural next reads.

References and further reading

• Thomas E et al. (2018). International Journal of Sports Medicine 39(4):243–254. Weekly stretching volume and frequency drive range-of-motion gains; supports the 2 to 3 times a week minimum.
• Warneke K et al. (2023). Chronic effects of stretching on range of motion with consideration of potential moderating variables: a systematic review with meta-analysis. Journal of Sport and Health Science. Mixed dose-response, with the explicit caveat that findings may not apply to extreme-range populations such as gymnasts and contortionists.
• Weppler CH, Magnusson SP (2010). Physical Therapy 90(3):438–449. Early range-of-motion gain is largely modified sensation (stretch tolerance) rather than increased tissue length.