A stability ball can help with that. It is a nice change from the flat surfaces our bodies are accustomed to. When you are on an unstable surface, your muscles retract and back gets back in a ...

A Bosu Ball (Both Sides Utilized) is a half-stability ball with a flat platform on one side and a soft, domed surface on the other. It is widely used in strength training, rehabilitation ...

Place one foot on the center of the flat side of the BOSU ball and lunge forward until both knees are at 90-degree angles. Push through your front heel to return to starting position. Alternate legs ...