Why Choose the Dynasty Leg Extension / Seated Leg Curl?

Maximize your lower-body training efficiency with one machine that targets both quadriceps and hamstrings. The Dynasty Leg Extension / Seated Leg Curl delivers professional-grade resistance training with smooth, biomechanically optimized movements that build strength while protecting your knees.

Perfect For:

• Commercial gyms seeking space-efficient dual-function equipment
• Personal training studios requiring versatile lower-body machines
• Physiotherapy and rehabilitation clinics focusing on safe knee strengthening
• Home gym owners wanting maximum value from limited space
• Athletes building balanced leg strength for performance and injury prevention

What Makes It Different:

Unlike basic leg machines, the Dynasty model features a 115kg weight stack, commercial-grade stainless steel hardware, and precisely engineered pivot points that align with your knee joint. The dual-function design eliminates the need for separate machines, while adjustable pads and seats accommodate users from 150cm to 200cm+ tall. Built to last with heavy-duty 50×200mm main tube construction.

The Leg Extension / Seated Leg Curl machine is a versatile dual-purpose unit that targets both the quadriceps and hamstrings for comprehensive lower-body training. Its ergonomic design and adjustable settings ensure proper alignment and comfort, allowing users to seamlessly switch between leg extensions and seated leg curls for balanced muscle development.

Key Benefits:

1. Dual-Function Design: Combines leg extensions for quadriceps and seated leg curls for hamstrings in a single machine.
2. Muscle Balance: Enhances lower-body strength by targeting opposing muscle groups, improving overall stability and performance.
3. Adjustable Configuration: Customizable seat, pad, and resistance settings accommodate users of all sizes and fitness levels.
4. Safe and Controlled Movement: Smooth mechanics promote proper form and reduce joint strain, especially on the knees.
5. Rehabilitation-Friendly: Suitable for improving muscle strength and mobility during recovery or after injury.

The Leg Extension / Seated Leg Curl machine is perfect for users seeking efficient, balanced, and safe lower-body training in one compact piece of equipment.

Frequently Asked Questions

What muscles does a leg extension machine work?

The leg extension primarily targets the quadriceps (front thigh muscles) - specifically the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius. It's one of the most effective isolation exercises for quad development and knee strengthening.

What muscles does a seated leg curl work?

The seated leg curl targets the hamstrings (back of thigh) - including the biceps femoris, semitendinosus, and semimembranosus. It also engages the gastrocnemius (calves) and glutes as secondary muscles. This exercise is crucial for balanced leg development and injury prevention.

Are leg extensions bad for your knees?

When performed correctly with proper alignment and controlled movement, leg extensions are safe and effective. The Dynasty machine's biomechanically designed pivot point aligns with your natural knee joint, reducing shear force. Start with lighter weight, focus on form, and avoid locking out at full extension. They're excellent for knee rehabilitation when used properly.

Can I use both functions in the same workout?

Absolutely! Using both leg extension and seated leg curl in the same session creates balanced quad/hamstring development. Many trainers recommend a 2:1 or 1:1 ratio (e.g., 2 sets of extensions, 1 set of curls) to maintain muscle balance and reduce injury risk.

What weight stack is included?

The Dynasty Leg Extension / Seated Leg Curl comes with a 115kg (253lbs) weight stack, suitable for users from beginners to advanced athletes. The pin-select system allows quick adjustments in 5-10kg increments.

How much space does this machine require?

Footprint: 1.6m × 1.05m × 1.5m (length × width × height). This compact dual-function design saves significant floor space compared to having separate leg extension and leg curl machines (which would require ~3-4m of space combined).

Is this suitable for rehabilitation and physiotherapy?

Yes! The controlled movement, adjustable resistance starting from light weights, and proper biomechanical alignment make this machine ideal for knee rehabilitation, ACL recovery, and post-surgery strengthening protocols. Many physio clinics use leg extension/curl machines for progressive loading exercises.

Leg Extension / Seated Leg Curl vs Other Leg Machines