Leg extensions are isolated movements that really target the quadriceps for maximum growth and stimulation.
Find the leg extension machine and adjust the padding based on your height and weight you can lift so that your upper and lower leg create close to a 90 degree angle.
Grab the side grips of the machine and prepare yourself to engage your hamstrings.
Raise the weights until your upper and lower legs reach a 180 degree full extension.
Pause for a moment and slowly lower the weight up to the start position.
Once completing your set, re-rack the weights as needed or wipe down the equipment used.
This exercise requires specialized equipment but a front squat that isolates hamstrings can be a good alternative.
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