In an effort to try to get more 1-Leg Bridging variations into the program but also knowing very few people can perform a real 1-Leg Leg Curl,  we’ve turned to doing a few different Slideboard (hockey sock in our case) Leg Curl variations. Currently, the “1 Out 2 In” variation may be my favorite, creating a large eccentric single leg strength challenge but performing the concentric portion on two legs.