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Related Experiment Video

Updated: Jun 26, 2026

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

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Published on: August 30, 2016

Directional-Specific Modulation of Postural Control and Stepping Kinematics in Multidirectional Gait Initiation.

Kuanting Chen¹, Adam C King^1,2

¹Department of Kinesiology, Texas Christian University, Fort Worth, TX, USA.

Journal of Applied Biomechanics

|August 19, 2024

Summary

Gait initiation (GI) direction and obstacles significantly alter how people adjust their posture and step. Lateral GI directions reduce movement, while obstacles require specific adjustments for clearance, impacting fall prevention strategies.

Keywords:

anticipatory postural adjustments leg dominance obstacle negotiation

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Last Updated: Jun 26, 2026

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

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Published on: August 30, 2016

Experimental Methods to Study Human Postural Control

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Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

Published on: July 26, 2022

Area of Science:

Biomechanics
Human Movement Science
Kinesiology

Background:

Adapting gait initiation (GI) is crucial for daily activities, influenced by environmental and task constraints.
Understanding anticipatory postural adjustments (APAs) and stepping kinematics in GI is vital for quality of life and fall prevention.

Purpose of the Study:

To investigate the effects of GI direction, obstacle presence, and leg dominance on APAs and stepping kinematics.
To analyze how directional changes and obstacles modify movement strategies during gait initiation.

Main Methods:

Fourteen healthy young adults performed GI in four directions (forward, medial 45°, lateral 45°, lateral 90°).
Obstacle presence and leg dominance were varied during the GI tasks.
Measurements included center of pressure (CoP) displacement, APA duration, step distance, swing leg velocity, and step duration.

Main Results:

Lateral GI directions showed a decreasing trend in CoP displacement, APA duration, step distance, and swing leg velocity.
Obstacles prompted modifications in APAs and stepping kinematics consistent with obstacle clearance movements.
Dominant leg GI resulted in longer step durations and increased movement variability, particularly in medial 45° GI.

Conclusions:

GI direction and obstacle negotiation significantly influence APAs and stepping kinematics.
Movement patterns adapt to directional demands and obstacle avoidance, impacting propulsive force generation and movement execution.
Findings provide insights for developing targeted fall prevention and gait rehabilitation strategies.