Looking to step up your hamstring training from the simple glute ham raise? Consider trying a Nordic curl. ... When viewed as one machine or the other, it’s a bit of a tough sell, but as a dual-threat ...

The glute ham developer (GHD) machine is a piece of gym equipment ... Kansas City Chiefs wide receiver Tyreek Hill’s playbook by enlisting a partner to hold your feet so you can do the Nordic curl.

Called the Nordic hamstring curl—you'll recognize the motion if you've used a GHR machine for glute-ham raises—the move has Hill on his knees, with his feet and ankles anchored by a spotter.