Expanding Panjabi's stability model to express movement: a theoretical model

Area of Science:

• Biomechanics
• Human Movement Science
• Rehabilitation Medicine

Background:

• The landmark 1992 spinal stability model by Panjabi inspired new exercise approaches.
• Challenges arose due to a lack of favorable clinical effects in previous stability-focused interventions.
• Existing models often overlook the crucial interplay between stability and mobility in human movement.

Purpose of the Study:

• To address deficiencies in existing theoretical models of human movement.
• To propose an expanded theoretical framework integrating stability and mobility.
• To enhance the understanding and analysis of musculoskeletal disorders and movement quality.

Main Methods:

• Conceptual expansion of Panjabi's stability model to a general movement model.
• Introduction of a parallel mobility system alongside the existing stability system.
• Theoretical integration of stability and mobility subsystems within a unified framework.

Main Results:

• Identified two symbiotic, body-wide elements in all movement systems: stability and mobility.
• Proposed that the harmonious interaction of stability and mobility dictates movement quality.
• Highlighted that dysfunction in either system negatively impacts overall movement and related subsystems.

Conclusions:

• The integrated stability-mobility model offers a novel understanding of human movement.
• This model may provide a universal system for analyzing body movement and musculoskeletal disorders.
• Future research should investigate mechanisms of harmonious body movement to develop evidence-based interventions.