Related: The Science-Backed Benefits of Running on Empty To measure the impact, researchers tracked changes in muscle ...

The hamstrings are the agonist and the quadriceps are ... the upwards phase, the triceps are the agonist and contract concentrically to extend the elbow and the biceps are the antagonist.

Training your biceps and triceps is a game-changer for mastering pull-ups. These muscles are some of your secret weapons for pulling yourself up with power and control. But let's be real ...

For those who haven’t given their triceps the TLC they deserve for weeks (or even worse, months ), Exercise Scientist, Dr.