Posturographic Standards for Optimal Control of Human Standing Posture

Area of Science:

• Biomechanics
• Neuroscience
• Physiology

Background:

• Static posturography quantifies balance and CNS adaptive mechanisms.
• Current diagnostic value is limited by a lack of stable posture standards.

Purpose of the Study:

• Establish reference values for stable human posture.
• Introduce novel static posturography parameters: DIAP, DIML, SVamp, SVaz.
• Provide normative data for young, healthy adults.

Main Methods:

• Assessed center-of-pressure (COP) trajectories in 100 healthy volunteers.
• Utilized 10 x 60s trials with eyes open (EO) and eyes closed (EC).
• Measured novel parameters: DIAP, DIML, SVamp, SVaz.

Main Results:

• Established reference values for young healthy subjects: SVamp = 9.2 ± 1.6 mm/s, SVaz = 0.9 ± 0.1 rad, DIAP = 0.7 ± 0.05, DIML = 0.56 ± 0.06.
• Some measures showed sensitivity to visual input (EC trials).
• Weak to moderate correlation found with anthropometric features.

Conclusions:

• The novel parameters and established reference values characterize stable erect posture.
• These findings can improve the diagnostic utility of static posturography.
• The data provides a baseline for future clinical and research applications.