A strengthening session to help runner's form. A strong core can help runners keep good posture, avoid injury, and increase lung capacity. This short sequence is rooted in classic Pilates exercises to help stabilize the trunk and strengthen the center. It can be used as a nice pre-run sequence, or one to do on your cross-training days. Prenatal should avoid the flexion and prone exercises, focussing instead on the stabilizing ones. All levels, no props.