onlyisometrics
Level 2 Valued Member
I don't own a chopping board factory, honestI remember reading stories online about kids reading a book claimed to have been written by Atlas a century ago (or thereabouts) which were purported to teach skinny kids that get sand kicked in their faces how to become big and muscular using "only isometrics" (Atlas developed his physique lifting weights). To me this sounds like the same kind of snake oil that convinces kids in a mcdojo that they can overcome a much larger assailant because they have a black belt in karate and win the gold medal in every points sparring tournament.
I fully acknowledge that I have zero formal education in any of this, except my own personal experiences and what I've read and seen online. So please consider everything I say below to be prefaced with "I believe that..."
Strength is a skill.
Isometrics may have a place in a well rounded program, but as the sole means of training sounds like a recipe for leaving a lot on the table. Too much.
Strength is a skill which cannot be fully expressed without developing proprioceptive response, stabilization against shifting loads, etc. Isometrics won't teach you that.
So do concentrics.
So are concentrics with submaximal loads.
So are concentrics with submaximal reps.
Any number of modalities fit this description.
Idem.
Of course they do, because isometrics are a valid and useful training tool. But none of them train using only isometrics. I think you need actual movement through full ranges of motion, both loaded, and unloaded in your training program.
A deadlift is an isometric movement if you can't get the bar to break the floor, right? A decade ago I once pulled my back and was out of commission as far as training for several weeks upon a failed deadlift attempt where the bar didn't break the floor. So you could say I got injured during an isometric exercise.
I guess my broad response would be that it's worked really well for me, which is why I wanted to share some of the details.
And the easiest way for someone else to see if it's good for them is just to try it.
That said, wanted to respond to a few of your points...
1) General point:
For me training has become 'bang for your buck' - what can I do that improves my strength, posture, makes me feel good and doesn't deplete me for the activities I want to do (climbing and skateboarding)... isometrics is the best modality I've found to balance those things in a small amount of time.
Especially feeling good, posture and energy - though I don't doubt that other modalities work better for others.
2) Strength as a skill:
I understand it as a spectrum, like I said.
All ways of training strength have a skill component.
It makes sense to me to either maximise or minimise the skill component in the weight room...
E.g. if I'm training for climbing, very climbing specific drills.
If I'm training general strength - which I hope carries over - then isometrics offer a very low skill to entry with a high force output.
I don't think learning the skill of handling a kettlebell necessarily helps with climbing, for example.
It would be better to learn the skill of climbing on the wall.
That said this is more my ideas and the way I currently think about it - I'm happy to be wrong or shown otherwise.
3) Vs concentric for recovery, safety and feeling good:
I don't doubt that traditional lifting offers same / similar / better benefits for some people.
Personally speaking though nothing has made me feel better than isometrics.
It's harder to accidentally over-extend yourself.
And in terms of feeling good I think there's an immediate 'super stiffness' affect - like when Stuart McGill uses his McGill Big 3 to help with back pain - which leaves my body feeling integrated and solid.
Fair enough if others get this from other modalities.
4) Self-limiting / self-regulating:
I don't agree that concentric necessarily falls into this.
I was thinking of Gray Cook's explanation:
Gray Cook: Self-Limiting Exercise and The Movement Principles - On Target Publications
Self-limiting exercise should be the cornerstone of your programs. Using his go-to exercises as examples, Gray Cook delves into why they work so well.
www.otpbooks.com
Basically, I don't need to use a lighter kettlebell to have a lighter session, or do less reps, I will just have a lighter session if my energy levels are lower because the force I'm exerting on the suspension trainer straps is lower.
5) Using only isometrics:
One of the people I mentioned - Alex Natera - does say he would use only isometrics with his athletes:
6) Injuring yourself with isometric deadlift:
Yer, as I said, you've got to get your form locked in initially as you're generating a huge amount of force.
The risk of injury isn't binary yes / no, just able to be much reduced with isometrics (I'd argue).
Again, I'm just sharing my experience because it's benefited me a lot.
I think anyone interested should just give it a go and see if it's the same for them.
Cheers.