UP THE CHALLENGE
You can use a gym ball to make familiar moves more challenging. As a general rule, making adjustments to your workout and the way you perform exercises will prevent you from hitting a plateau where you find it difficult to make progress because you’ll always be posing a significant challenge to your muscles.
KEY MOVE GYM BALL PLANK
Start with your forearms on the ball, your elbows bent at 90° and your body in a straight line from head to heels. Hold that position for as long as you can. Make sure your hips aren’t too high because that means you won’t place enough tension on your abs. If they start to sag, that will put stress your lower back.