Half balls, with a rigid base and inflated top, are ideal for balance exercises and adding variety to workouts. "These are excellent tools for balance training and adding variety to an old-school ...

I didn't think arm day sessions were worth my time. But with just half an hour, this hellish routine changed my mind.

23 Best Kettlebell Exercises to Torch Calories and Build Total-Body Muscle Kettlebell exercises are among the best to build full-body strength, because they let you do compound moves unilaterally.