FWIW, I just tried this casually (holding out one arm and pushing it down with the other) and it worked; from the inside it feels like NancyLebovitz’s explanation: “stiff” makes the muscles oppose each other (without much regard for position), whereas positioning my hand somewhere engages the normal feedback loops which keep my arm where I want it to be.
FWIW, I just tried this casually (holding out one arm and pushing it down with the other) and it worked; from the inside it feels like NancyLebovitz’s explanation: “stiff” makes the muscles oppose each other (without much regard for position), whereas positioning my hand somewhere engages the normal feedback loops which keep my arm where I want it to be.