THE BODY IS a complex machine. Your corporeal form houses over 600 muscles, all working together to help you perform your best every day. Fitness pros tend to organize all of these into different ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Working muscle groups as a unit is a great way to maximize the benefits ...

Building an effective workout routine isn’t just about showing up at the gym. One of the most important decisions you’ll make is how to split your training across the week. Trainers emphasize that ...

A smarter training split could be the difference between faster gains and stalled progress—experts say how you combine muscle ...

The quadriceps, or quads, are a group of four muscles on the front of the thigh. They are some of the largest and strongest muscles in the body. The quad muscles allow a person to stand, walk, run, ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

Much like their name implies, the quadricep muscles were once thought to be a set of four muscles, with the name “quad” translating to “four or fourth” in Latin. However, it has since been discovered ...