Cell phones change the way we walk

Area of Science:

• Human Factors and Ergonomics
• Neuroscience
• Biomechanics

Background:

• Cell phone use while walking causes cognitive distraction and unsafe behavior.
• Dual-tasking, like talking or texting, can interfere with working memory and lead to gait errors.

Purpose of the Study:

• To investigate the impact of cell phone use (talking vs. texting) on pedestrian gait and cognitive function.
• To compare the interference effects of talking versus texting on walking performance.

Main Methods:

• Thirty-three participants walked to a remembered target with vision occluded.
• Gait parameters including velocity, linear distance, and lateral deviation were measured.
• Participants were tested under three conditions: walking, walking while talking, and walking while texting.

Main Results:

• Cell phone use significantly reduced gait velocity (talking: 16%, texting: 33%).
• Texting while walking increased lateral deviation by 61% and linear distance by 13%.
• Texting demonstrated a greater interference effect on walking than talking.

Conclusions:

• The dual-task of walking while using a cell phone negatively impacts executive function and working memory.
• Gait is significantly influenced by cell phone use, potentially compromising pedestrian safety.
• Texting poses a greater risk than talking due to its more significant interference with walking.