Exercise balls are as basic as it gets when it comes to gym equipment. They can be used for balancing, resistance, and cardio exercises.

6 medicine ball exercises you should try, according to a personal trainer Don't be intimidated by these weighted spheres: They're easier to use than you might think — and very effective.

Exercise balls are as basic as it gets when it comes to gym equipment. They can be used for balancing, resistance, and cardio exercises.

Here are four medicine ball exercises with big benefits for runners. A 6-or 8-pound ball, which you can find for $30-$40, is best for most people.

Crunches, teasers, planks, and body-weight squats are some of the best stomach exercises for stronger abs. A strong core improves balance and posture.

This goes beyond the basic core workout because the BOSU adds instability to keep your entire core constantly engaged. And because you're squeezing a medicine ball between your legs, your thighs ...

Instead of focusing on exercise ball inflation pressure, focus on the ball's intended diameter, which is noted on the packaging and sometimes on the ball itself.

Weight training exercises can also be performed on the stability ball. A seated unilateral shoulder press focuses on working the deltoids, triceps and core. Level: Intermediate/Advanced Sitting on ...