leg extension

Once you know you’re not starting from scratch and haven’t lost too much ground you can resist the urge to go in all guns blazing.
Thankfully, there is a method to the proverbial madness of training.
Machines are not evil—work with them and they will work with you.
Humans are the only animals that land on their heels when they run.
New research examined how toe angle, range of motion, and rep schemes affect the quads.