Seating Dynamics: A LCS Perspective 

Gavin Horan, PT

Gavin Horan, PT and Clinical Sales Specialist with LCS, Ltd. in Sligo, Ireland, wrote the following on LinkedIn. We asked him to share his valuable thoughts in a Seating Dynamics blog.

“In complex seating, the conversation often centres on alignment, support, and stability. But clinically, human posture is dynamic, not static. People shift weight, adjust their base of support, change trunk orientation, and regulate tone through movement. Effective seating must respect this reality.

At LCS, dynamic seating is not an accessory, this is a clinical intervention.

Why Dynamic Seating?

1. Pressure Distribution and Tissue Integrity
Sustained static loading increases localized tissue stress and reduces perfusion. Allowing controlled movement supports natural pressure redistribution and reduces risk of pressure-related injury.

2. Postural Control and Biomechanics
Movement allows users to maintain equilibrium, adapt to functional tasks, and reduce compensatory patterns. Dynamic elements reduce the mechanical load on the spine and pelvis by absorbing forces rather than resisting them.

3. Tone Management and Motor Control
For individuals with high tone or fluctuating motor patterns, dynamic seating can dissipate extensor forces, reduce reflex-triggering, and support graded, safer movement. It can significantly decrease the cycle of “fighting against the chair” that leads to instability and equipment damage.

4. Respiratory, Digestive and Circulatory Benefits
Allowing the trunk and pelvis to adjust improves thoracic expansion, supports more optimal diaphragm mechanics, aids digestion during prolonged sitting, and enhances circulatory flow compared to rigid static systems.

5. Functional Capacity and Participation
Clinically, function improves when the user can move within a safe range: reaching, interacting, communicating, and engaging. Dynamic seating increases endurance, reduces fatigue, and supports meaningful participation across environments.

LCS Clinical Philosophy

Dynamic posture is normal posture.
Our wheelchair seating systems are designed to support alignment while enabling the controlled, purposeful movement through dynamic seating required for long-term health, comfort, and real-world function.

Seating should work with the body, not against it.”