Hollow Body Hold Progression - Gymnastic Core Stability Exercise

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The hollow body is one of our fundamental holds, because mastering it allows you to do so much more. We use this hold for working on our handstand line, for improving pull-ups, and even for increasing overall body control in locomotive movements.
Start at your own level and work your way up.
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We really hope you found this video useful. Please leave a comment if you have any questions at all. We'll do our best to help.

[@bucsfan2565]

i wish they taught this in high school where all ab exercises are done on the floor. I think your explanation was exceptional.

[@gmbfit]

Thanks, and I agree!

[@mstyres00]

it's weird because when you watch it, it looks so easy to do. trying to keep your lower back pressed into the floor is really hard and man does it make you work. Thanks for the tutorial, much appreciated.

[@gmbfit]

+Mike S Of course glad you liked it. Keep in mind Ryan has been working on this movement for quite some time :) With practice it will come!

[@cap10zomb]

Maybe this helps with lower back pain

[@darrenernest]

Mike S he makes everything look easy!

[@Sabr798]

This is the best tutorial out there for beginners. Trying to get into the full progression of the hold with zero core strength is impossible but knowing the progressions from where to start is so important for form. Thank you

[@gmbfit]

Spot on! Everyone is in such a rush to straighten their legs, hahaha. You gotta slow down and give your body time to get stronger :)

[@twobitp]

I'm still trying to do my first handstand, but this has drastically improved my pull up technique.

[@gmbfit]

The hollow body position will have that effect. Full body tension allows the body to follow the rule "tighter is lighter". ;-)

[@janayb7400]

You did an amazing job explaining this. I tried to do one but my lower back kept coming off the ground and I thought that was wrong. I saw this video and you showed how to change my back position so that wouldn't happen. Thank you so much!

[@gmbfit]

+Janay B So glad we could help!

[@Ddarke11]

Simple, yet excellent tutorial

[@mazidtheraider]

There would have been so much less back pain in my life if I had learned about this as a teenager. Instead it took years of being into fitness and weight lifting and finally calisthenics before I started stumbling on references to hollow body holds. Can we start making this the first thing people start learning about core/ab strength? I understand that for heavier people the positioning feedback is more difficult, but the lessons from this one move help and protect in EVERYTHING else I do.

[@gmbfit]

Wow, thanks so much for this comment! I'm sorry you dealt with back pain for so long - it's such a common issue, and I think you're right that many people would benefit from practicing hollow body holds early on. Keep practicing and share with your friends :)

[@foshoucitron4595]

There is not a single day when I do not have the same thought! I wish that I learned this in kindergarden....That and how to squat properly are the 2 most fundamental skills upon which a healthy body can grow however, our educational system is failing us!

[@945gaurav]

110% agree with you.

[@YTStopCensoringFreedomOfspeech]

I just discovered this and I believe practicing this would fix upper crossed syndrome which is so common these days. Such a basic but important move is crucial as everyone sits too much.

[@trevormartin2630]

Gnb fitness,get Dicloflam 50mg tablet dissolve in glass of water twice a day for one day with in 3hrs your back pain will be gone Had same problem back pain this tab took it away.dicloflam is used for all kinds of injuries,inflammation Swelling ext. Wish you well

[@gabewaite7984]

for once i can actually feel my abs working, i guess my back and hip-flexors have been doing all the work. thanks a bunch

[@ItsBlissfulAcres]

Thank you so much for all your expert coaching. I've thought of myself as having a pretty strong core until now. This is going to take some time for me, a lot of time.

[@adrianocarpinelli3433]

Thank you for this tutorial about hollow body. Too many people only think about aesthetic abs and useful abdominal exercises!

[@jakubkrolikowski8538]

I'm amazed how he can speak fluently while doing this exercise :o

[@JeremySimms]

awesome, thank you!! this is reminiscent of move #2 from the five tibetans, which i love. i will work this into an evening routine thanks to your easy and accurate demo. cheers!

[@antonlindberg7117]

I am so glad that I found your channel! It gives so many small and simple tips - as well as progression stages for so many essential exercises that I wish to accomplish. Thank you so much.

[@gmbfit]

So glad you're finding our videos helpful, Anton! Keep us posted :)

[@Emilianolokocho123]

this has helped me alot for my handstand progressions, thanks alot ryan! :)

[@lodersracing]

Finally a simple explanation of the progression - beginner to advanced :)

[@edandjaclynnace4177]

Great tutorial! Helped me get my core strong enough to work on handstands without breaking myself :)

[@romesizzle]

Wow, just wow. What an amazing tutorial. Been doing it wrong this whole time

[@bobwojcik6196]

Excellent explanation! Wow you the man, great core strength

[@caydenasson8853]

I’ve just stumbled into this in search of some guidance to help with my obnoxious posterior pelvis tilt and this video has been a massive help with increasing my stability and comfort during my squats and deadlifts 👍🏼

[@gmbfit]

So glad it's been helpful for you - core/spinal stability is criminally underrated, but it makes a big difference when you're lifting.

[@kmm2442]

Awesome. I like how gentle you are.

[@colin8923]

Such a helpful video. Thanks!

[@salvationwithoutregret9781]

This is an incredible tutorial!

[@stephenalbertson8920]

Thank you so much for this explanation...I have anterior pelvic tilt...and I know that this one particular exercise is recommended to help strengthen the core and help keep my lower back straightened.

[@dewxdrop23]

Good explanation, i really appreciate the gradual steps

[@giuliaorlando4754]

Nice video. Thanks for sharing!!

[@BrunoWonderEscritor]

Thank you for the instructions and for taking your shirt off. Joking!

[@gmbfit]

Bruno César ;)

[@ant7936]

Good instruction, well explained, thanks.

[@nextlevelfitnesstraining5174]

loved this! thank you!

[@swordham]

I really like this and will add it to my core training and let my clients know about it as well.

[@gmbfit]

+S. Wordham Great. It is an awesome drill!

[@kosmiquo]

Exquisite video..great help Sir!

[@angelaburton7799]

Love your videos

[@meymer43]

Eres el mejor Ryan ! 😀

[@Lubricanttechnology]

Thank you, good one 😃👍🏻

[@HipHopAn0n]

Okay that is seriously crazy, I have been doing this exact thing every day when I meditate and it has helped my muscle spasms tremendously. I never knew there was a name for it! It works great for low back muscle spasms in particular.

[@gmbfit]

+HipHop Anonymous Glad it was able to help you! The hollow body is a great drill :)

[@cryptogymbro]

IT FIXES BACK PAIN FOR ME

[@devonadler5835]

This is a piece I was missing. I was doing these with the balance point on the back of my pelvis/tailbone. Keeping the lower back flat makes this target my core so much more

[@gmbfit]

Yep, really wanna focus on keeping your lower back on the ground. Glad this helped.

[@thequestionmark-csgoconten3726]

Absoultly best video out there, thanks so much ! You helped me alot

[@gmbfit]

Glad to be of service :)

[@Love2RideItaly]

very very clear, many thanks

[@Renbu8]

Thanks, helpful.

[@LoveEverything1987]

Good job!

[@piyushdwivedi7195]

Best explanation I've seen for this exercise!

[@gmbfit]

Right on - glad it's helpful :)

[@betaodantas]

Very good!

[@cordellsenior9935]

Uda man. Thanks.

[@zchgla]

great tutorial

[@connormccafferty5288]

Cool thanks!

[@skattabrain]

Nice job, I get it a lot better now!

[@gmbfit]

+skattabrain Glad it was able to help you!

[@tariquetolbert506]

some this is awesome thank uu

[@IntuitiveWarrior2024]

Excellent exercise thankyou!

[@gmbfit]

Stick with it - totally worth it :)

[@Brndndutton]

So Good 😎🙏🏼💙

[@jiggaboo3341]

Very helpful

[@playitbyearny]

AWESOME

[@SlimeMiniNatalie]

good

[@lorini11]

the best of the best

[@JudoMateo]

The exercises I've learned from your channel are not only making me stronger in new unthought of ways, they're also reducing my mid-back pain. Have you ever heard of parallette training relieving back pain?

[@gmbfit]

So glad to hear that. Back pain can be very simple or very complex. It may just be that strengthening the core and learning to control your body alignment helped fix whatever was causing the pain.

[@sergioadamgeraldi7899]

this what i looking for

[@hgimin]

this is really nice video thankyou

[@gmbfit]

+민훈기 You're welcome!

[@rig2376]

This will sound odd, but I hit subscribe as soon as the video began and I saw your shirt off before you even started explaining. Allow me to elaborate: I watch many exercise tutorials on YT and the instructors commonly wear baggier clothing, and it helps so much to see the muscle groups and proper form so precisely as when the skin is seen. However, there's no way to really say "I'd like this video so much more if you were topless" without sounding absolutely revolting. Thank you for the instruction, thank you for how you chose to teach.

[@disaannecooper-asperin6415]

I took my shirt off and suddenly I made lots of new friends. Thanks 😍😚😜 I will try this and hopefully the skin on my tailbone will grow back😏

[@donlydSkYiSfaLLing]

Seriously thanks for the progression. I've always tried to do the last form and I always fail in less than 2 seconds

[@gmbfit]

Nice!

[@joanromanofossemo4883]

Great

[@cm88388]

Thanks for the video! Just a quick question - when I tried this extending my legs out I noticed there seemed to be more strain/activation of my lower back than my abdominals. Does this mean I'm doing it incorrectly? Any tips?

[@gmbfit]

+Clarence O'Clancy It means you're not strong enough to extend your legs yet.

[@cm88388]

+GMB Fitness Thanks! I'll have to be more patient, never was my strong suit haha. Keep up the good work :]

[@shanelandry1501]

Thanks for posting this video. The detailed explanation of how to make sure my lower back is staying on the ground really clarified the workout for me. I have a question. How does this workout compare to a forearm plank?

[@gmbfit]

They are two different things :) The hollow body position on your back is going to mimic the positioning needed for the handstand and various levers you can do on the rings etc. The forearm plank is elevated off the ground and it is harder for people to find the hollow position when first starting with it. You can totally do the same body positioning but when first starting it is best to stick to the hollow body on the ground.

[@vladimirrakic]

Hi Ryan, thanks for posting the video. Just curios what is the "risk" if the lower back lifts off the floor. I can see it would affect proper alignment, especially in the handstand, but what else could be a problem here ?

[@gmbfit]

The biggest risk is that you simply won't be strengthening the muscles that need it most.

[@pandapowah3527]

Nice explanation, I have a question if you don't mind answer: I'm practicing the planche since almost 2 years now, I can hold some seconds of straddle planche. The problem is that I can't hold it with a perfect hollow since my scapulas aren't perfectly protracted, they aren't retracted but kinda neutral/protracted... This happens also in my advanced tuck planche even if I can hold it some seconds. My question is, do you think that practicing like this will eventually bring me to fully protract my scapulas/shoulder blades, or If I keep practicing like this I'll never get a solid hollow position ?!

[@lks122]

Hey Ryan! Thank you for all the great videos, it's helping a lot! I just have a question. Is the Hollow Body Position the correct way to hold the body when doing back or front levers?

[@gmbfit]

Lucas Fuhr Is a great position for the front lever, however back lever is a little different. It is more of a hollow back position.

[@MrGlauchino]

Hi! Thanks a lot for sharing your knowledge. When I do the position stretching out the legs what happens is that my whole body lifts up pivoting on my sacrum bones and the more I squeeze my abs to keep the back straight and the more my upper body lifts up. What do you suggest? maybe going immediately with the arms stretched back? Thanks a lot for your time.

[@gmbfit]

Glauco Luigi Cicognani Go back to an easier version and get stronger at it. If you aren't doing it right, you don't get the full benefit; if it's hard, that means you are weak. Back up and get stronger.

[@leonleunghh]

Nice video. I found it is very difficult to keep my lower back on the floor. I just can't keep my lower back on the floor if I wanna lower my leg. Can I improve this by practising the imperfect hollow body hold? How would you recommend the reps and sets? Thank a lot:)

[@gmbfit]

Leon Leung It is difficult. That's how it makes you stronger. Practice, and you will be able to do it better. Hold as long as you can with good form as many times as you feel like it.

[@razorcola4545]

GMB Fitness I ve got the Problem that i ve a big ass and a slightly hollow back. My lower is only on the ground if my legs are almost vertical and to hold this is not challeling (I can hold L-sit for 30 or longer). Is it for a person like possible to do this exercise ?

[@schobel]

Hey...love the exercise and i can hold for about 20 seconds. I find breathing quite difficult while holding though. Suggestions ?

[@gmbfit]

+Herr Schobel Keep practicing.

[@Mentalcheez]

How long should I be able to hold it for, before moving on to a more difficult progression? Should probably include it in the description too! Thanks

[@gmbfit]

+Niaz Ahamed thanks for the tip! It really depends on the person. I would say 20-30 seconds in each position is a good place to be. Test the new position and make sure the lower back is staying glued down. You are going to be the best judge of that. Eventually work up to being able to hold for a minute. Hope that helps.

[@Mentalcheez]

+GMB Fitness Thanks!

[@sharish1701]

Hello sir I have Anterior pelvic tilt and I find it quite difficult... Can you please make a video on how to fix it. Thank you sir..

[@gmbfit]

Use this and our hip mobility videos.

[@sharish1701]

@@gmbfit thank you sir

[@DavidStMichael]

Sorry if this has been asked already, but is this okay for your neck? Looks painful, but I'm open minded. Thanks for a good video.

[@gmbfit]

yes, it's ok. if it hurts, stop.

[@user-tc7rw1cm4g]

GMB Fitness

[@anibaljrbalt]

I've seen other tutorials on this. His is good. He should have said you lift your shoulders off the floor without engaging the neck. If your neck position is wrong you will feel the strain. Adjust your neck to flat neutral position. These are crazy hard and fun.

[@dannisjc]

Thanks for this - leg raises are among my least favourite exercises, but this might help me work towards getting there. I have a large sway in my back, do you know if/how this affects the difficulty of this exercise?

[@gmbfit]

+dannisjc Take you time with the progressions laid out. Just means you will have to focus more on not letting that lower back come off the ground!

[@Ironwulfen]

Starting out, how long do you suggest I hold the position for and how many sets do you think would be appropriate? Haven't done any core exercizes in quite a while... I run and bicycle a lot though.

[@gmbfit]

as long as you can without compromising form for as many sets as you feel like

[@pnwtree]

i naturally have tight muscles so when ever i straighten and lower my lower back starts immediately coming off the ground. is it supposed to happen till i use this exercise more frequently or is it just me?

[@gmbfit]

pnwtree Everyone's back comes off the floor at first. It means your deeper core muscles are weak. Practice this and get stronger.

[@nemesus5574]

thanks i always wanted to know the lower back issue when doing hollow body hold it keeps going up from the floor. hahaha

[@gmbfit]

yup, just means you're extending the legs further than you're ready for :)

[@JulianWLucas]

Hey quick question. So do you contract your glutes (squeeze the bring your pelvis forwward to keep your spine flat or just your abs? I know in the rkc plank you do are strong glute squeeze which forces the anterior core to contract hard so I wasn't sure if a strong glute squeeze would be advantageous. This is easily the best video I've seen! I was obsessed about whether or not you keep your spine neutral or not but with it flat on the ground then its for sure not neutral! Now I just need to figure out what to do with my glutes in this position :P Thanks in advance!

[@gmbfit]

Julian Lucas Don't worry about your glutes at all. They may been to contract; they may not. Try to keep the back flat while extending the legs. Focus on the position and movement instead of which muscles you're using.

[@JulianWLucas]

GMB Fitness Thank you so much for a quick response! I'm really impressed. I have a lot less followers on FB and IG and I reply waaay slower then you! :P

[@gmbfit]

lucky timing ;)

[@KJP1HD]

Okay I gotta try this! Why do we not talk about this exercise more????

[@gmbfit]

It is becoming more popular as people learn of the benefits :)

[@ruggiocusimano5708]

Hi GMB, I really struggle to keep my glutes tight as well as activate my deep core muscles so the back is on the ground but I feel my bones instead of my low back bulging and flattening, moreover without enough shoulder flexibility arms are too high, any tips for these issues? Plus are there requisites of set x reps/hold you would recommend? I think this is crucial to avoid future problems, an answer would be deeply appreciated :)

[@gmbfit]

Hey Ruggio! From what you are describing I reccomend working on the tuck position that is demonstrated first. Spending time on the first progression will help you build up strength. As for sets and reps think about starting small and building up over time. For instance working on a solid hold for 10 seconds is better than pushing yourself beyond that right now. Keep things simple and listen to your body.

[@ruggiocusimano5708]

thanks, you are always very kind and at disposal!

[@DownToEarthYoutube]

Hey, thank you. How long should a set be and how many sets?

[@gmbfit]

as long as you can do it correctly

[@markzambelli]

As a beginner, about 10 years ago I tried to go straight into leg raises similar to this hollow body position and I gave myself an inguinal hernia on the right side. It got fixed with a mesh but ever since I have been terrified of doing any excersises that put strain on my lower abdomen (I even worry about planks for goodness sake). Am I worrying about nothing if I try this progression method as shown here and not overdo it? I've been doing your mobility stretches and followed your other vids for a while and feel more supple now than ever. Thankyou for all your guidance.

[@gmbfit]

If you start as we show and only extend your legs as your strength allows, then you'll be fine.

[@markzambelli]

@@gmbfit Thankyou ever-so-much... I'll follow your guidance to the letter. Your 'flow' routines and mobility excercises have helped my back-strength (I do horizontal rows too) and deep-squats enormously and with that, my core has improved, so thankyou again. You have a very good video style and are so good at explaining/showing stuff, jus thought you should know. Regards, Mark.

[@gmbfit]

@@markzambelli Thanks for saying so :)

[@star_fruitti]

When I was in the military they forced us to do leg lifts in basic training but never corrected us on how to do them properly. Probably the reason my back was so effed for so long and probably a lot of other service members who lacked core strength like me.

[@jesusmylordtheascendedmast600]

Hi please reply. Would it be a good idea to hold a 5-10kg plate slightly forward elbows straight while doing this exercise to stop my lowerback from arching? my abs are weak in comparison to my hip flexors and my left hip clicks and causes pain when i attempt to do this exercise.

[@gmbfit]

Liam asasas You could try it. I would say regress whatever you are doing to the first progression we show in the video with your arms forward. Try it without weight.

[@LambLiesDownOnBroadway]

For how long should I keep on doing Stage 1, until I've mastered it? Are there Sets to this and does it take a long time to comfortably go to Stage 2, without having your lower back lift off from the floor?

[@gmbfit]

Until you can go to the next level without breaking form. A "set" is as long as you can hold with good form. Do as many as you like. Stop when you can't hold with good form for more than a few seconds. It takes as long as it takes. You're weaker than some people and strong than others. You have your own body proportions and habits built up over your lifetime. How long it takes you is a completely individual thing.

[@childemperor]

❤

[@randibethel7085]

I do dead bugs regularly and have clients do them as well. Regarding the lower back, I have heard conflicting instructions. One is keeping the lower back pressed into the ground and the other is to keep the natural curve in the lower back, allowing a couple of fingers through the space. Can you please comment on why one and not the other? Thank you.

[@gmbfit]

Sure. The hollow body is a drill that eventually leads to the handstand. If there is a significant curve in the spine, the joints won't be stacked in a straight line, making the handstand harder. Being able to press the lower back into the ground means you are able to articulate through the spine and that is pretty significant.

[@Roosyer]

I'm surprised he didn't make any sarcastic comments throughout the whole video

[@user-er4rf4iq6y]

I understand the benefits of using the hollow body as an isometric ab exercise but I've also seen it used in aparatus and other types of exercises like pushups and handstands. Isn't it better for your spine to be straight while doing strength exercises? I'm asking because I don't have a gymnastics background and that has always confused me.

[@gmbfit]

Neutral spine is important for exercises where you are loading the spine (like heavy weighted squats). In this case, you are flexing or extending the spine under control specifically to strengthen the muscles that support it.

[@alekmauldin2239]

From what I could see, it might be difficult getting into it at first, but as long as you keep your shoulders off the floor and down towards the ribs, even as you straighten and let the arms fall back, it should be fine, right? I also noticed some tilting in the hips--anterior pelvis tilt, specifically; bringing the knees towards you helps with this, and it has to be maintained as you straighten and lower the legs--also comes into play here. Does that sound about right, or am I missing something here? Also, would this be better done on hard floors? I could hardly tell if my lower back (the lumbar?) is flat against the carpeted floor while trying this.

[@gmbfit]

You have the right idea. The idea is to eventually make your body as long as you possibly can while the lower back maintains contact with the ground. If you are working on a carpet I suggest placing something under the lower back IE: a towel. This will give you a little more feedback!

[@alekmauldin2239]

Thank you! I'll give this a shot later.

[@Theivv]

Thank you so much! My lower back keeps pushing up no matter how much I try to hold it. At first I figured it was something to do with having large glutes, but I think I just need to strengthen my core with a lower progression. GMB FTW!

[@gmbfit]

Theivv Yup! Just give yourself some time to practice, and it'll get stronger. :)

[@mortisha24]

my lower back does not come off the floor but at one point my ab muscles stick out, is that a point to stop lowering legs? I had 2 births, very small diastasis recti (1,5 fingers) so when engaged, my abs kind of protrude outwards...I guess that's just a sign they are weak but I think I should not go beyond that point in this position?

[@mortisha24]

why am I the only one not getting a response from the author? :(

[@Umbrellagasm]

This is certainly a very challenging exercise! I do have a question though (for anybody knowledgeable). Why is this valuable for "alignment"? If our spine naturally curves, shouldn't we train in such a manner that encourages the maintenance of that natural curve? Thank you.

[@gmbfit]

It strengthens the and helps build control over the deep abdominal muscles. In no way is it attempting to remove the natural curvature of the spine. Nobody is suggesting that you walk around in this position all day. It's an exercise.

[@Umbrellagasm]

Haha okay, thank you for the prompt reply.

[@youtubesucks5131]

Recently started crossfit and even though I work out regularly, not my core though, doing hollow holds and crunches for 4 times x 30 seconds wrecked me so hard which such doms in my lower abdomen I was wondering if I had either torn tissue or rhabdo. Couldn't do hollow hold for a week after it, plus I was doing it in a modified way, with legs bent, not even going full in there 🙄 i wish you would show average people doing those exercises as well, not just fit guys who are doing this for years already. Show us a housewife in her mid -40s with shaking legs so we can relate a bit more.

[@gmbfit]

We show how to start and explain clearly how and when to progress toward the full hollow hold. It sounds like you hurt yourself by skipping over those instructions and adding additional exercises without having worked up to it. The problem isn't that Ryan is too experienced and not a housewife. The problem is that you did too much, too soon. If you sincerely believe you have injured yourself, please see a doctor. If you're just sore, rest, and you'll be fine.

[@akaza3524]

Is this exercise great for correcting rib flare

[@gmbfit]

It can help.

[@JaidonLalor]

When I try to enter stage 2, I can't help my back from lifting off, and upper body coming up... Suggestions?

[@gmbfit]

That's a clear sign you're not ready to do that yet. My suggestion is to keep working at the level you're at.

[@bleumoom]

Hi, I find when I do the hold and lower my legs too low my lower and upper back begins to lift off the floor. Is this because my core isn't strong enough or is it because there is more weight shifted towards my legs than my upper body? Thanks.

[@gmbfit]

+bleumoom Both.

[@aleksandar736]

Should i try to extented my arms (be a long as possible) in full hollow body like in real handstand hold?

[@gmbfit]

Ultimately, yes, but not if that means you can't keep your body hollowed.

[@manu20184u]

what is the name of the exercie in which we lay down n just put hands below the bone which is just above hips. and then hands above head. legs just above ground and then stretch? And how to do tat perfectly?

[@gmbfit]

A bridge? gmb.io/spine/

[@kolkflor]

When I try to hold my lower back flat to the ground my core starts trembling. Is that due to a lack of core strength?

[@gmbfit]

+kolkflor Most likely that is the cause. Try regressing the position by tucking the legs in toward the body. As you gain strength begin to extend the legs. Hope that works for you!

[@VilleMetsola]

Is this position supposed to be SUPER tough or could it be I'm making it more difficult than it's supposed to be? I feel like I have pretty good core strength (I can do some legs-to-bar raises and dragon flags) but I'm having trouble holding the hollow body position with legs and arms extended with my lower back flat on the ground and hips pushed strongly forward.

[@gmbfit]

+Ville Metsola It is difficult :) Keep practicing and remember work through the progressions there is nothing wrong with first starting in that tuck with the arms reaching straight in front of you. Take your time!

[@Coverdrive50]

Would you recommend this exercise to someone recovering from a C section (8 weeks after)? Thanks for the helpful videos!

[@gmbfit]

+chris adams I'd recommend asking your doctor - it's a great exercise, but everyone heals at different rates.

[@alexk17]

@@gmbfit hey man I’m doing the form correctly each time but as m legs drop my lower back raises very slightly, mind you I’m athletic and I workout and physical often, i genuinely don’t think the people in these comments are doing it correctly if im not, am I overthinking it?

[@gmbfit]

@@alexk17 If your back comes up, you should bend your knees like it shows in the video and build your strength.

[@Mikyest]

I’ve always had this issue with my lower back where it arches. Will that be an issue? Or does it not matter that much? I don’t know how to fix my arched back though I do want to do this exercise as it seems more effective than a sit-up.

[@gmbfit]

That means you're not strong enough to extend your legs. Bend them as shown/explained in the video until you can hold without your lower back arching.

[@Mikyest]

@@gmbfit Thanks. Feels like I’ve done 70 sit-ups. Amazing technique and video! Thanks for the advice :)

[@gmbfit]

It's really an underrated position. Take your time, and it builds a lot of stability.