Last week, Allison Chopra, a personal trainer and owner of Urban Fitness Studio, showed us how to gain flexibility while stepping up, such as climbing a flight of stairs. But some people can trip on stairs while bringing their back leg forward, so this week Allison shows us how to stretch hip-flexor muscles and gain more flexibility, which can help with this problem.

Looking for more? Here are past exercises! New ones will be posted every Monday.

Video by Lynae Sowinski