Runners should NOT have a tension in the core muscles

[@kstoeb]

Only discovered your channel recently, and immediately subscribed. It’s the real no-BS-advice. Great.

[@kssrider6766]

The added sound efx is killin' me! 😄

[@ronaldokun]

Recently discovered your channel. Science + elite runners...gold!

[@bui340]

Best content so far! Thanks!

[@SuperPathfinder10]

Excellent, saw so many running coach instructions over the years but u bring up unique things.

[@sarahickmott]

Absolutely loving this content. 53 yr old runner here. Great to see most of the advice I've heard over the years being exploded 😊 ❤

[@voquocthang9389]

Thank you so much and I do love this content, Fredrik. I love the sound effect and demonstration of hip extension if we hold the core tightly. Amazing content, overall!

[@Emiljon]

I love your delivery in these videos. It would be awesome to know what you think are the core trainable aspects of running technique. Stephen Seiler did a presentation recently on the trainable aspects of endurance physiology, and I thought it was helpful when considering what to focus on in my training plan. Would be cool to have something similar for running technique.

[@ElectricHorseman66]

I agree. But many average runners leave their butt behind while they lean. So the correction imo is to bring your neutral pelvis forward and underneath your torso. Also, some runs with an anterior tilt and for them, I'll suggest to force a slight posterior tilt until it gets into neutral position.

[@younaos]

Thank you

[@michaelbravo305]

Love it!

[@s.y4285]

Thank you so much man

[@mogosberhane264]

Great advice!

[@Surfsailwaves]

A very entertaining and informative mix of analysis and humour.

[@Leonidas-eu9bb]

you really understand the movement. Not many do. This core tension is really a common missunderstood cue. Running can be very easy and smooth if we do it right. But also very hard and uncomfortable if forced with the wrong intention.

[@ninabergstrom1828]

Riktigt bra förklarat.

[@kevindoherty01]

Love your videos👏👏

[@garyknight8616]

great advice. thank you.

[@stevedarunner5736]

Good job.

[@71spud]

Love the content. You are the best. Those… are…. the~facts.

[@courirlegerlightfeetrunnin2753]

The mechanism you are describing is called the "Spinal Engine" (cf. Serge Gracovetsky). I recommend you investigate further and experiment the link between "leg stifness" and core strength since apparently you have all the sophisticated equipment for that purpose and make a new video about it. That would be interesting.

[@selda2528]

lets not forget fascia and tensegrity and the windlas mechanism that pumps the fluid whilst doing all that spinal engine thing... like the body wasnt designed to be stupid... also curiouse what he thinks about david weck

[@SJG23]

Great content 👍🏼

[@manueltan8962]

Love the Video ! Very helpful =) and you're funny, I agree.....do as you please !

[@pentaxin]

Спасибо!

[@robertsunjic8530]

Just beautiful channel for anyone who really want to learn proper running technique and to unlearn all the ill- advices that are existing on internet, books about running etc, that are teaching people to run like robots.! Only, the core should maintain small fraction of the tension, just eneugh to provide stability and power transfer from pushoff to upper body.

[@aar021]

Older runner here. This breaks convention but makes sense completely. Unnaturally trying to create tension while running is just a recipe for injuries.

[@jonb9194]

It's very possible to have a very relaxed abdomen while running if the forces on the torso are balanced between the shoulders and hips. It seems that the legs are much stronger than the arms, but the shoulders are wider than the hips, making it very possible!

[@Atkinson501]

Loved everything you said, but that was triple Olympic Medalist Jonny Brownlee, not double Gold Olympic Medalist Alistair Brownlee. Just saying..

[@matthiross]

Very well explained. And how does this relate to core strength? Do we still need to strengthen our cores to run faster?

[@thomash.larsen6932]

0:37

[@RenbenGodfreyMusic]

haha your videos are so funny and interesting

[@TheWolfAkella]

🙏🏽🙏🏽

[@BlackJesusChrist666]

Based good sir!

[@jefejeffwell1113]

People think you suck in your belly and flex your abs to create tension/stability, but in reality, that destabilizes your back. Correct tension is built through breathing into your belly against the pressure of your abs. It’s the same as in a squat.

[@oftenwrongphong]

I find the best way to prevent sucking in your belly and flexing your abs is to run with a shirt on.

[@selda2528]

swawi breathing and many other things are blowing up, but diaphramatical breathing is one of those concepts, that gets hard to ignore

[@thenayancat8802]

I don't think it's in any way feasible to breathe like this when running

[@sarahickmott]

I think i need someone to film me running as i feel like I'm not too bad but probably in reality I'll be bent double in the middle, running folded over 😂

[@bui340]

I believe if you slightly tuck your chin in, the tension in the core doesn't restrict the lateral mobility of the spine.

[@pja123pja]

But that only works if you keep your eyes up and your tongue slightly curled within your mouth.

[@selda2528]

diaphramatic breathing and how it helps to create pressure within the body to create the enviroment for it to take place

[@HS99876]

Good video, 👍🏻👍🏻👍🏻🏃🏽‍♂️🏃🏽‍♂️🏃🏽‍♂️🫀

[@jseales86]

Loving the content. I would love to know how much of this (all of your vids) applies to mountain ultras. Any difference when the distance is very far?

[@SpringSnabbare]

I apologise for the late reply, but in principle the laws of physics and biomechanics also apply in the mountains. So everything I say is largely relevant to you as well. However, what distinguishes ultra from "normal" long distance running is that it becomes increasingly difficult to use the stretch shortening cycle the longer it gets. When you don't get much help from your body's "rubber bands", you may have to consider the cost of moving forward where vertical displacement of your centre of mass costs the most. Having a higher cadence can therefore be useful when the rubber bands start to get tired. Of course, it matters a lot who we are talking about and how long the distances are. A runner like Jim Walmsely has a very low cadence and that works well for him in 100-mile races. I've helped runners in the Swedish ultra-national team and they are extremely strong and have good flexibility, so the slightly higher cadence is not always as important. But there is a difference even for them between running 100 km (62 miles) and 200 miles.

[@evelynecarbonneau6440]

So how do we run like a soda can and not tense the abs???

[@mehmetsaglamsaatci7287]

ı run everyday

[@Securedigitali]

Ok, how about some clever stuff on sprinting

[@MrLamans07]

I've been trained by a professional club coach and it turns out she gave so much bad advice... thanks Frank