A feasibility study investigating cortical hemodynamic changes during infinity walk with fNIRS

Area of Science:

• Neuroscience
• Motor Control Research
• Biomechanics

Background:

• The Infinity Walk is a unique gait pattern.
• Understanding cortical activation during gait is crucial for motor control studies.
• Footwear and foot pronation are potential modulators of motor control.

Purpose of the Study:

• To investigate cortical activation patterns during the Infinity Walk using functional near-infrared spectroscopy (fNIRS).
• To explore the influence of foot overpronation and footwear on motor control during this gait pattern.
• To identify specific brain regions involved in executing the Infinity Walk.

Main Methods:

• Utilized functional near-infrared spectroscopy (fNIRS) to measure hemodynamic changes.
• Recruited six participants with non-critical pronation degrees.
• Assessed participants performing the Infinity Walk under varied footwear conditions.

Main Results:

• Consistent bilateral hemodynamic patterns were observed in most tested brain areas (PFC, PMA & SMC, PMC, WA).
• No significant differences in activation were found across subjects or footwear conditions in these regions.
• Distinct activation patterns were noted in Broca's area (BA) and the temporal gyrus (TG).
• The influence of pronation and footwear on motor control remains inconclusive due to inconsistent hemodynamic responses.

Conclusions:

• The Infinity Walk elicits balanced hemodynamic responses, likely due to its inherent gait characteristics.
• Cortical activation patterns in Broca's area and the temporal gyrus warrant further investigation.
• More research is required to establish a definitive link between pronation, footwear, and cortical hemodynamics in motor control.