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A beginner's guide to split keyboards

justinmklam.com

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Re: A beginner's guide to split keyboards

#2
The main question should be: are split keyboards any better than normal keyboard?

When I gave it a look, the studies were on the side of split keyboards being the hardware equivalent of snake oil.

But whatever.

And maybe then: are keyboards the best input device in 2026?

Re: A beginner's guide to split keyboards

#3
post #2

The main question should be: are split keyboards any better than normal keyboard? When I gave it a look, the studies were on the side of split keyboards being the hardware equivalent of snake oil. But whatever. And maybe then: are keyboards the best input device in 2026?

Maybe it depends on your individual anatomy, and the sensitivity of it to stresses?

Anyway, the fact alone that you have less bend in the joints of your hands, if used right, seems to avoid all sorts of carpal-tunnel syndrome?

Re: A beginner's guide to split keyboards

#4
So after almost 50 years of hacking, I'm starting to feel it in my hands. But I don't have any wrist problems -- no carpal tunnel. What I have is tendonitis in my fingers, primarily in my middle fingers and my right pinky (from slamming Enter several million times).

I've had steroid injections into the tendon sheaths of my fingers a couple of times, which hurts like a bugger when it's done but definitely improves things after a few days. It isn't a cure, though, and my hand doctor thinks I'm going to need surgery eventually.

I have to assume that a split keyboard won't help this. Is there anything that might, short of a voice interface?

Re: A beginner's guide to split keyboards

#5

So after almost 50 years of hacking, I'm starting to feel it in my hands. But I don't have any wrist problems -- no carpal tunnel. What I have is tendonitis in my fingers, primarily in my middle fingers and my right pinky (from slamming Enter several million times). I've had steroid injections into the tendon sheaths of my fingers a couple of times, which hurts like a bugger when it's done but definitely improves thi…

Ok, fellow old hacker here. I have a similar problem and I found that a lot of the hand pain was from mouse/trackpad usage. My hands have been a lot happier since going to a trackball because I don't do nearly as much gripping and pressing.

Re: A beginner's guide to split keyboards

#6

So after almost 50 years of hacking, I'm starting to feel it in my hands. But I don't have any wrist problems -- no carpal tunnel. What I have is tendonitis in my fingers, primarily in my middle fingers and my right pinky (from slamming Enter several million times). I've had steroid injections into the tendon sheaths of my fingers a couple of times, which hurts like a bugger when it's done but definitely improves thi…

A split keyboard might still bring you some relief. Modifiers/enter/backspace/etc are usually moved away from your weakest fingers (pinkies) to your strongest (thumbs). I have Ctrl, Alt, backspace, delete, space, enter and shift all on my thumb clusters.

Here's an example of what that might look like: https://kinesis-ergo.com/wp-content/uploads/KB360-GBR_FRONT-... (though in the default configuration, shift is still on your pinky; you can customize this on most keyboards, or on OS level).

The rabbit hole goes very deep. Another option is home row mods: https://precondition.github.io/home-row-mods. A combination of thumb clusters and home row mods can reduce your finger strain a lot.

Re: A beginner's guide to split keyboards

#7
post #2

The main question should be: are split keyboards any better than normal keyboard? When I gave it a look, the studies were on the side of split keyboards being the hardware equivalent of snake oil. But whatever. And maybe then: are keyboards the best input device in 2026?

Maybe it depends on your individual anatomy, and the sensitivity of it to stresses? Anyway, the fact alone that you have less bend in the joints of your hands, if used right, seems to avoid all sorts of carpal-tunnel syndrome?

One thing I internalised when speaking with a physiotherapist is that part of avoiding serious issues is making sure you don't stay in the _same_ position for too long. One good ergonomic position is an excellent start, but changing your position several times throughout the work day is even better. This apparently helps avoid building up strain and inflammation in pinch points, balancing out the fatiguing action more.

I have found that my Ergodox allows me to juggle my keyboard halves around the desk at different angles and spaced apart at different widths, and I can put my trackball either to the right of everything or between the halves. It's a single anecdote, obviously, but I have been able to make my ulnar and carpal entrapment issues mostly go away by finding better positions while working and by not staying stuck in one posture or position for too long at a time.

Re: A beginner's guide to split keyboards

#8
This is a summary of Reddit discussions and maker hacks, not of the actual market for ergonomic keyboards. Because the goal of those discussions and hacks is to be distinctive, the summary picture is fascinating but over-complicated.

Kinesis Advantage keyboards have been popular for decades and proven ergonomic benefit - mainly because the cup avoids wrist movement and the high-traffic keys are moved to the stronger thumb. Some users prefer the newer split Professional to avoid constraining arm position. These keyboards stopped my RSI cycle decades ago, and improved my speed by roughly half. (Also a US company, with fantastic support.)

Re: A beginner's guide to split keyboards

#9

So after almost 50 years of hacking, I'm starting to feel it in my hands. But I don't have any wrist problems -- no carpal tunnel. What I have is tendonitis in my fingers, primarily in my middle fingers and my right pinky (from slamming Enter several million times). I've had steroid injections into the tendon sheaths of my fingers a couple of times, which hurts like a bugger when it's done but definitely improves thi…

The angle / position your wrist is when your fingers need to do these lateral movements could be more or less taxing depending.
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