Kali Muscle takes on a punishing leg workout that prioritizes intensity over complexity. With classic movements like squats, lunges, and leg presses, he demonstrates how to build lower-body strength ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Squats train all the major ...