产品描述：

The Nautilus® XPLoad™ Leg Extension uses "Functional Generator" four-bar linkage to provide the correct strength curve with full-range movement.


Product Info

• Dependent movement arms prevent body twist
• Properly located axis of rotation reduces knee stress
• Proper seat angle releases hamstrings, allowing full range quadriceps contraction
• Back pad maintains correct angle for all adjustment positions
• Can be used one leg at a time if desired