60-Second Elbow Plank With Hip Dips Congrats — you've made it to the final exercise! This one will really carve your waistline. Just make sure you watch your form. From an elbow plank position, slowly rotate the spine to lower your right hip to just above the floor. Come back to elbow plank. Now lower the left hip toward the floor. This counts as 1 rep. Repeat for 60 seconds. Image Source: POPSUGAR Photography / Kathryna Hancock