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.
> 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.