why do our our arm and hands shake when exerting max effort?

Question

An example of that would be when we try to grip on something as hard as we can, our hands would shake.

In: 221

Answer 1

Your brain sends electrical pulses, not a steady stream. Like little waves on a river. Your muscles generally account for smoothing it out, like a pile of rocks at the end of that river.

If you try to move all the rocks at once, you still only have access to the waves. You can’t make a rushing torrent of water, so the rocks fly everywhere each time a giant wave hits.

Answer 2

Your brain sends electrical pulses, not a steady stream. Like little waves on a river. Your muscles generally account for smoothing it out, like a pile of rocks at the end of that river.

If you try to move all the rocks at once, you still only have access to the waves. You can’t make a rushing torrent of water, so the rocks fly everywhere each time a giant wave hits.