Active Craniospinal Tensioning (ACT): Axial Spinal Traction for Glymphatic Modulation

Area of Science:

• Neuroscience
• Biomechanics
• Physiology

Background:

• The glymphatic system clears waste from the brain, crucial for preventing neurodegenerative diseases.
• Current interventions for glymphatic dysfunction are limited, especially noninvasive, scalable methods.
• Previous research proposed axial spinal traction to modulate glymphatic circulation.

Purpose of the Study:

• Introduce Active Craniospinal Tensioning (ACT) as a self-administered technique to modulate glymphatic function.
• Develop a scalable, noninvasive intervention for ambulatory populations.
• Provide a framework for investigating ACT's potential in preventing neurological disorders.

Main Methods:

• ACT involves a voluntary squat maneuver and an overhead anchor system to create axial tension along the craniospinal axis.
• This method preserves dural tensioning and craniospinal coupling principles from prior traction models.
• The technique shifts force generation to participant-regulated loading for scalability.

Main Results:

• ACT is presented as a scalable, participant-driven extension of axial traction for glymphatic modulation.
• The method is theoretically applicable to individuals with reduced perivascular water diffusivity (e.g., low DTI-ALPS indices).
• A practical implementation framework for ACT is provided.

Conclusions:

• ACT offers a novel, noninvasive, and scalable approach to potentially enhance glymphatic circulation.
• This participant-driven method could be explored for preventive applications in neurological health.
• Further research using neuroimaging biomarkers is supported to validate ACT's efficacy.