This infographic from Decibel Nutrition, features 19 exercises you can do to bulk up those skinny legs. You’ll find exercises for your quadriceps, hamstrings, glutes, calves, and more. Try out the exercise in the graphic.

I’m sure you’ve seen guys at the gym doing 20 sets of curls with big plates on Monday, killing shoulders on Wednesday, but what about legs? Are they always seem to be wearing long sweat pants instead of shorts to the gym? Maybe, they are hiding the “out of symmetry” body parts, known as legs.

The chicken Leg Syndrome, occurs when guys go the gym and train nothing but their upper body; arms, pecs, and shoulders, and they completely ignore their legs. It doesn’t matter if you can bench 500 pounds. Having a strong foundation is very important. Your glutes, your thighs, and your calves are some of the biggest muscles in your body. Challenging these larger muscles requires more energy, which means your body will be burning more calories. Not only will you become a better athlete, you will also reduce the risk of injury.

According to the American Council on Exercise, performing functional exercises, like the lunges and squats, promotes stability in the knee. Which is your best bet to prevent an ACL tear (The ACL is one of four ligaments that serve as main stabilizers of the knee. It is located between the bottom of the femur, or thigh bone, and attaches to the top of the tibia, or shin.)

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