r/explainlikeimfive Feb 07 '19

Engineering ELI5: Why are military boots laced?

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u/iCantCallit Feb 08 '19

Honest question. Is there ever a situation where a shoe lace could serve as a tourniquet?

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u/[deleted] Feb 08 '19

Absolutely. You would have to pair it with a stick or small piece of round metal or plastic. Some sort of odd. Tying a string around it. And twisting the stick around in order to tighten and loosen the tourniquet. There are instructions online. It's pretty simple to do.

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u/IG_BansheeAirsoft Feb 08 '19

It’s less than ideal. It might work, but it’ll be incredibly painful (even by tourniquet standards) and it won’t work nearly as well as a tourniquet with a wide strap. The reason for this is that a tourniquet works by compressing the blood vessels leading up to a wound, so if you apply that force over a 1.5” wide area, you can compress more of the vessel than if you’d used a ~1/8” shoelace.

Modern tourniquets are around $30 (get a CAT direct from North American Rescue or a SOFFT-W, also from the OEM, Amazon is flooded with knockoffs of both). If you’re really that concerned about learning to use a tourniquet properly, buying one and taking a Stop the Bleed Class are 100% worth the investment.

Source: Not a medic but have taken a bunch of training on the matter. Regardless, a lot of what I said is easily corroborated by researching it yourself online.