Maloney had endured injury hell with Aston Villa before moving back to suffer more in Scotland.
But he has been transformed under Martinez.
He said: "Once I'd spoken to the manager, I was keen to put pen to paper and was happy the manager was so keen for me to stay.
"I'd been plagued with injuries for a couple of years before I came to Wigan, but since I've been here, I've seen a different side of the game under the manager.
"In terms of tactics and the work we do in training, I haven't really experienced anything like it."