Adjust the seat of the leg press machine so that your knees are slightly bent when your feet are on the sled. Sit on the machine with your back against the backrest and your feet on the sled, shoulder-width apart. Place your toes and the balls of your feet on the sled, keeping your heels off. Push the sled forward by extending your ankles, keeping your knees slightly bent. Pause for a moment at the top, then slowly lower the sled back down by flexing your ankles. Repeat for the desired number of repetitions.
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