Popsugar Health & Fitness Workouts Allyson Felix's "Abs by Allyson" Ab Workout I Tried Allyson Felix's "Abs by Allyson" Workout, and Now I Feel Like an Olympic Sprinter 19 August 2020 by Tamara Pridgett View On One Page Photo 6 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Circuit 2, Exercise 3: Single-Leg V-Up Start lying on your back with your arms reaching toward the ceiling. Exhale and roll up while lifting your left leg up. Pause at the top and reach for your toes before rolling slowly back down to the mat. This counts as one rep. Complete 10 reps. Previous Next Start Slideshow Allyson FelixAthletes15-Minute WorkoutsHome WorkoutsBodyweight WorkoutsIntermediate WorkoutsCore ExercisesAb WorkoutsStrength TrainingWorkouts