The BraceUP Carpal Tunnel Wrist Brace features a lightweight aluminum splint with a soft cushion and a mesh material for comfort and breathability. It has three adjustable straps for security.

Three adjustable straps ensure it’s not uncomfortably tight, and the brace extends further down the forearm than some other models, which can help limit movement in the wrist.

The cost of a splint isn't covered by Ontario's health-care system. The prefabricated ones used in the study were provided by Benik Corp., and sell for about $45, Dr. Boutis said.