Balance Board Core Workouts Back To Library Basic Plank Plank – Beginner Plank Leg Lift – Beginner Plank Leg Lift – Advanced Side Planks – Beginner Side Planks Alternate – Beginner Side Planks – Advanced Plank Toe Taps – Beginner Plank Toe Taps – Advanced Mountain Climber – Beginner Mountain Climber – Advanced