Differences in Treadmill-Based Gait Analysis Based on 3 Methods for Comfortable Walking Speed Selection in Healthy...

Area of Science:

• Biomechanics
• Human Movement Science
• Gait Analysis

Background:

• Accurate gait analysis requires walking speeds that mimic everyday life.
• Treadmill-based gait analysis presents challenges in replicating natural walking speeds.
• Understanding the impact of different speed selection methods on gait parameters is crucial.

Purpose of the Study:

• To compare spatiotemporal and kinematic gait parameters across three distinct walking speed conditions on a treadmill.
• To determine the most appropriate method for selecting walking speed during treadmill gait analysis in healthy adults.

Main Methods:

• Forty-two healthy adults participated in the study.
• Participants walked on a treadmill in a virtual environment under three conditions: matched overground speed, self-paced speed, and participant-selected speed.
• Spatiotemporal and kinematic data were collected using motion capture analysis.

Main Results:

• Significant differences in multiple gait parameters (e.g., step length, stride time, cadence, joint angles) were observed between self-paced treadmill walking and matched overground speed.
• No significant differences were found between participant-selected treadmill speed and matched overground speed or self-paced conditions.
• Variations in gait parameters were attributed to speed differences between the self-paced and matched overground conditions.

Conclusions:

• Participant-selected comfortable walking speed on a treadmill is a valid method for gait analysis.
• This finding supports the use of participant-determined speeds to enhance the ecological validity of treadmill-based gait studies.
• Future research should consider participant-selected speeds for more representative gait data collection.