[Reactive dynamic balance in the geriatric setting : Possibilities for evaluation and quantification in functionally...

Area of Science:

• Gerontology
• Biomechanics
• Gait Analysis

Context:

• Falls in older adults often occur during walking due to gait instability.
• Reactive dynamic balance assessment is vital for fall risk prediction and early intervention.
• Current methods for evaluating balance reactions to gait perturbations are limited.

Purpose:

• To critically discuss methods for gait perturbation and reaction pattern evaluation.
• To present a diagnostic protocol for assessing reactive dynamic balance using treadmill-based gait perturbations.
• To explore parameters for comprehensively mapping reactive dynamic balance.

Summary:

• A protocol involving treadmill gait perturbations was developed and applied.
• Gait speed was determined, followed by 9 types of disruptions over 4.5 minutes.
• Evaluation included spatiotemporal parameters, margin of stability, and Lyapunov exponent.

Impact:

• Reactive dynamic balance shows promise for quantifying fall risk in older individuals.
• Comprehensive parameter evaluation is currently limited by a lack of established methods and references.
• Developing a unified, sensitive method for reactive dynamic balance is essential for clinical fall risk assessment and training evaluation.