If humans could run really fast, would we run with our arms backwards?

i remember my first joint

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quote:

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DALLAS (CBSDFW.COM) - Police are investigating after a body was found in the street Wednesday afternoon at Singleton Boulevard and Vilbig Road.

Witnesses tell CBSDFW they saw a man scribble something in Spanish on his van. He then tied one end of a rope around his neck and the other end around a fire hydrant. The man then drove off, decapitating himself.

The van came to a stop without hurting anyone.

It's not clear exactly what the man wrote on the van.

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So we can assume humans havent reached that speed if the running style has always been the same.

I have no idea. Maybe its 40 mph, maybe its 80. No idea

People in other sports do it. Like idk skateboarding and snowboarding maybe and stuff when they are trying to pick up speed. They throw their hands behind their backs. So at what point does that help with running where the coefficient of drag has a greater impact on efficiency than pumping your arms.

His legs were backwards. Reefer head

The results showed, as the scientists had expected, that the volunteers used the least energy and were most efficient when they ran normally, their arms swinging at their sides. With each change in arm position, their efficiency dropped. Holding their arms behind their backs required 3 percent more energy than running normally

3% difference, and that was on a treadmill so drag wasnt even able to be factored in. At some higher speed, there has to be a breaking point.

Some idiot in my 4th or 5th grade class did this every time he ran. I think he got it from dragon ball z