Supporting the Foot at Its Highest Functional Position

MASS Posture Theory™ (Maximum Arch Supination Stabilization) is a biomechanical approach that focuses on supporting the foot at its highest functional arch position during midstance, the phase of walking when the body experiences the greatest forces.

By supporting the foot during this critical phase of movement, MASS Posture Theory helps promote better alignment throughout the body’s kinetic chain.

The Foundation

Why Foot Alignment Matters

The foot is a complex structure made up of:

26
Bones
35
Joints
1
Foundation for the body’s movement

Every step places force through the foot. When the foot is not properly supported, movement patterns can be affected throughout the body, including the ankles, knees, hips, and lower back.

Illustration of the skeletal structure of the foot and leg.

Support Beyond Cushioning

Traditional Insoles

  • Primarily use soft materials for comfort
  • Compress under repeated pressure
  • Focus on cushioning rather than structural support

ReLEAF Orthotics

  • Use a supportive HDPE shell
  • Designed to maintain structure under load
  • Help distribute pressure across the foot
  • Support alignment during movement

What MASS Posture Theory Considers

The right level of support depends on more than shoe size or arch height.

Body Weight

The amount of force placed on the foot affects the support needed.

Foot Structure

Individual anatomy influences how support should be applied.

Flexibility

Foot movement and adaptability impact support requirements.

Activity Level

Daily activities, work demands, and performance goals determine the demands placed on your feet.

Find the Right ReLEAF Solution

Whether you need a ready-to-wear option or a fully customized solution, ReLEAF offers orthotic support designed around different needs.