Are there changes in postural regulation across the lifespan?

Area of Science:

• Gerontology
• Biomechanics
• Human Physiology

Background:

• Postural regulation is crucial for maintaining balance and preventing falls.
• Age-related changes significantly impact motor control and stability.
• Understanding normative postural parameters is essential for clinical assessment.

Purpose of the Study:

• To establish normative parameters for postural regulation in a large cohort of asymptomatic individuals across a wide age range (6-97 years).
• To identify age-specific thresholds for declines in postural stability and subsystem capacity.
• To provide reference data for evaluating balance and dizziness disorders.

Main Methods:

• Cross-sectional study involving 1724 asymptomatic participants aged 6 to 97 years.
• Quantitative assessment of maximum postural stability and the capacity of postural subsystems.
• Analysis of data stratified by age and sex.

Main Results:

• Peak postural stability and subsystem capacity were observed in specific age ranges: 34-35 years for men and 38-44 years for women.
• A significant decline in postural performance was evident starting in the 40s for men and the 50s for women.
• Individual variability in postural performance was noted across all age groups.

Conclusions:

• Postural regulation parameters demonstrate age-dependent changes, with notable declines occurring in middle adulthood.
• The obtained data provide valuable benchmarks for the clinical evaluation of dizziness and balance disorders.
• These normative values can assist healthcare professionals in identifying and managing age-related postural impairments.