It pays to pay attention to your hamstrings. Just ask celebrity trainer Ashley Borden. The Los Angeles–based creator of her namesake fitness app, whose clients have included Christina Aguilera, ...

Now, before you go grabbing that pump, you’re going to want to make sure you have the right ball size on hand. To do that, all you need to know is your height. If you’re 5’5” or shorter, stick to a 55 ...

There are so many exercises you can use a stability ball for, especially when it comes to targeting your core. Why? Because this fitness tool, otherwise known as an exercise or Swiss ball, challenges ...

You can do a hamstring curl with or without gym equipment. Some variations involve standing, sitting on a chair, or lying face-down on the floor. These muscles function together to bend your knee and ...