Life Fitness Pro Series Owner's Manual page 39

3. Pro Series Machines
Abdominal (ST05)
3-30
Muscle exercised: Abdominals
Setup: Select desired weight. Use the pull knob to adjust the chest pad to the
desired start position. With a straight back, the pad should rest on the mid chest.
Adjust the foot plate so the knees are bent 90 degrees.
Performing the exercise: Holding the handles, slowly contract the abdominals into
a crunch position. Return slowly to an upright position.
Start Position
End Position