Ab exercises you can do using a stability ball. Ab exercises you can do using a stability ball.

Ball Bicycle

Stability Ball Ab Exercises

Primary Muscle Group: Core Muscles

Muscle groups worked in this exercise: Abdominus Rectus

Preparation: Lying on your back, bent your knees and place your feet on the floor. Hold the ball straight up above your chest. Bring both knees in toward your chest.

Ball Band Front Raise

Stability Ball Ab Exercises

Primary Muscle Group: Shoulders

Muscle Groups Worked in This Exercise: Deltoideus; upper, middle and posterior parts

Preparation: Sit tall on the ball, keep your back straight and place an exercise band under both feet. Grasp the band in both hands and fully extend your arms beside your hips with your palms facing the ball. Engage your abs.

Breathing: Exhale as you raise your arms, inhale as you lower back to start.

Ball Lateral Flexion with Medicine Ball

Stability Ball Ab Exercises
Primary Muscle Group: Abdominal Obliques

Muscle Groups Worked in This Exercise:  Psoas Major, Iliocastalis lumborum, Iliocastalis thoracis

Preparation: Lie on ball on side of torso, waist, and hip. Position legs outward with feet on floor or against floor board. Hold medicine ball between hands and close to upper chest region close to your body as pictured.

Breathing:  Breath out on the contraction upward and breath back in on the way back down to the start position.

Execution:  Raise side of torso up by lateral flexing waist. Lower torso back on ball and repeat. Position other side on ball and repeat with opposite side.

Comments:  Exercise can be performed without added weight until more resistance is needed. Movement can be made easier by positioning hip low on ball. In contrast, exercise can be made more challenging by positioning ball lower on hip.