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That's really interesting, re. ligaments. Can you point to any resources around that, so I can learn more?

There are tons on material connecting cold muscles and ligaments with low blood flow and risks of inflammation. Arthritis, carpal tunnel, RSI etc.

Random links:

https://www.stelizabeth.com/healthyheadlines/cold-weather-an...

https://www.barringtonortho.com/blog/carpal-tunnel-and-cold-...

Those links connect cold with the symptoms of carpal tunnel syndrome not the cause of it.

Are you saying it increases the risk of injury or just pain?

That's why I clearly wrote that there's a ton of material and that I was sharing 2 random links.

> Are you saying it increases the risk of injury or just pain?

Both. Lowering blood circulation decreases the ability of muscles, ligaments and tendons to self-repair. Among other things, cold lowers blood flow (and viceversa). That's why people warm up before stretching.

I’ve read a lot of conflicting research about warming up before exercise. With evidence it improves, does nothing, or reduces performance depending on the specifics etc.

My intuition is cold hands would be a risk, but I don’t particularly trust such intuition.

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