There are lots of ways to classify the exercises that make up your workouts, and if you spend any time around the weight rack, you’ll undoubtedly encounter the most common one: joint involvement.

Open-chain knee exercises, in which one or both feet are off the ground, effectively target specific muscle groups around the knee joints, including the quadriceps and hamstrings.

Ready for leg day? I’ve already shared my favorite exercises for hamstrings and for your glutes (a.k.a. your butt). It’s time to tackle the main muscle group we think of when we think of legs: the ...

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