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Texting during stair negotiation and implications for fall risk.

Rami Hashish¹, Megan E Toney-Bolger², Sarah S Sharpe³

¹National Biomechanics Institute, Los Angeles, CA, USA.

|September 13, 2017

Summary

Texting while navigating stairs significantly alters gait, slowing ascent and descent. This texting behavior reduces critical foot clearance, potentially increasing fall risk and injury.

Keywords:

Biomechanics Distracted walking Fall Gait Trip

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Area of Science:

Biomechanics
Human locomotion
Cognitive neuroscience

Background:

Complex walking environments require integrated sensory-motor function.
Cognitive distractions impair gait, particularly in older adults.
Mobile device use during daily activities is pervasive, necessitating research into its impact on mobility.

Purpose of the Study:

To investigate how texting affects gait kinematics during step negotiation.
To quantify changes in gait parameters when dual-tasking walking and texting.

Main Methods:

Twenty participants completed walking trials on a step-deck obstacle.
Gait kinematics were recorded during both texting and non-texting conditions.
Each participant performed at least three trials for each condition.

Main Results:

Texting led to slower ascent and descent speeds.
Reduced dual-step foot toe clearance was observed during ascent while texting.
Texting decreased single-step foot heel clearance and dual-step foot fore-aft heel clearance during descent.

Conclusions:

Texting during stair negotiation alters gait kinematics, potentially increasing fall and injury risk.
Further research is needed to explore texting's effects on other locomotor tasks and actual fall risk.