Fitness trainer Alissa Mosca and ergonomist Jonathan Puleio share tips to prevent office chair butt, including ergonomic chairs and movement to combat muscle atrophy.

With summer heat and humidity in full force, staying active can be tough, but strength training is one way to meet your ...

In TODAY.com's Expert Tip of the Day, Anita Phillips, Ph.D., reveals two quick exercises that can be done pretty much ...

To build maximal muscle strength, calculate the heaviest weight you can lift for an exercise (like a bench press) called a one rep max (1RM), and lift close to that number — roughly 80-100%.