Advanced, customisable orthotic technology for precision biomechanical control.

The Interpod Vari-Force Orthotic range gives podiatrists and clinicians the flexibility to prescribe exactly the level of orthotic stiffness required for each patient. Offering both High Force and Low Force models, these medical-grade polypropylene orthoses are engineered to deliver targeted support based on supination resistance testing, ensuring optimal patient comfort and improved clinical outcomes.

Developed using evidence-based design principles, the Vari-Force system enables practitioners to choose the minimal effective level of support needed to relieve symptoms — reducing overcorrection while maintaining comfort and function. The result is a more individualised orthotic prescription for every foot type.

Key Features

• Customisable Support: Prescribe the precise stiffness required to address each patient’s biomechanical profile.
• Durable Polypropylene Shell: Lightweight, supportive, and designed for long-term performance.
• Two Force Options: Select from High or Low stiffness based on supination resistance results.
• Comprehensive Design Library: Multiple material types, control zones, and modification options to refine each orthotic.

Stiffness Options

Stiffness Type	Ideal Patient Profile	Clinical Application	Heel Lift Pairing
High Force	Patients with high supination resistance or requiring firm control	Provides strong support without added orthotic shell height; improves control and gait efficiency	Can be paired with a firm heel lift to accelerate centre of pressure progression
Low Force	Patients with low supination resistance or increased forefoot stiffness	Encourages natural forefoot motion and flexibility; assists forefoot rotation about the fifth metatarsal	Can be paired with a soft heel lift to slow centre of pressure progression

Benefits

• Precision Support: Supination resistance testing helps determine the most effective orthotic stiffness for injury prevention and correction.
• Predictive Assessment: Using the Keystone device, supination resistance testing provides greater predictive value for injury risk than visual alignment or posture alone.
• Tailored Treatment: Interpod’s modular orthotic library allows clinicians to customise rearfoot support, midfoot stiffness, material density, and arch height for each case.
• Enhanced Patient Outcomes: Promotes balance, comfort, and biomechanical efficiency across varied activity levels.

Design Features

• Three material types: NeuroFlex, Polyurethane, EVA
• Three stiffness grades: Low, Moderate, High
• Dual control zones: Midfoot and/or Rearfoot
• Available as Shank-Dependent or Independent devices
• Cuboid notch for lateral stability
• Heel cup options for added control
• Extrinsic and intrinsic rearfoot posting options
• Three core orthotic additions: PMP pads, lateral pads, heel lifts
• Rearfoot wedging: 0° or 6° options
• 1st ray cut-out and plantar fascial groove for forefoot accommodation
• 1st ray declination for enhanced forefoot mobility

Common Clinical Uses

• Orthotic prescription: Determine the exact level of stiffness and support required for each patient’s needs.
• Foot symptom management: Reduce pain and improve function in patients with biomechanical imbalances.
• Rehabilitation and injury prevention: Improve alignment and pressure distribution during recovery or long-term orthotic therapy.
• Professional podiatry and orthopaedic use: Ideal for inclusion in any clinical orthotic library.

Sold in pairs.

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Interpod Vari-Force — engineered for podiatrists who demand precision, flexibility, and proven performance in every orthotic prescription.