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3. Pro Series Machines
3-21
LEG EXTENSION (SL20)
Start Position
End Position
Muscle exercised: Quadriceps.
Setup: Pull the knob to adjust the start position. Your knees should be bent at about
a 90 degree angle to start. Select the desired weight.
Performing the exercise: Place your feet on the plate and grip the handles. Keep
your knees lined up over your feet and slowly straighten so that your knees are just
slightly bent. Use about a three count to straighten your legs. Hold the extreme
position for a brief moment. Slowly lower back down using a six count.
Using the Range limiter (SL25): If the machine is equipped with a range limiter,
you may adjust the range of motion and starting pad location. Set the desired pad
location by using the number coded pull knob. Set the desired range of motion by
using the letter coded pull knob.