Mark Lambert sat on the carpeted floor of his living room, trying to figure how to make a glute bridge more difficult to exhaust the fast-twitch muscles of a National Hockey League hockey player.
A glute bridge is a fairly simple exercise, performed by lying face up on the floor with knees bent and feet flat on the ground. The objective is to lift the hips off the ground until the knees, hips and shoulders are a straight line, engaging mainly the glutes and hamstrings and strengthening the core.
For a professional athlete, the action is easy.
"They can do hundreds," Lambert said.
How can one make it more difficult with limited equipment?