Walking Asymmetry

Assess gait balance and fall risk with Apple Mobility metrics

What is Walking Asymmetry?

Walking asymmetry is the percentage of time one foot's steps are faster or slower than the other foot. It measures gait imbalance and unevenness in walking patterns.

Apple defines and validates walking asymmetry through iPhone Mobility metrics (Apple Whitepaper PDF).

Why Walking Asymmetry Matters

Higher walking asymmetry indicates gait imbalance and increased fall risk:

  • Fall risk indicator - Uneven gait increases likelihood of trips and falls
  • Detects neuromuscular issues - Can indicate stroke, Parkinson's, arthritis, or injury
  • Functional health marker - Reflects balance, coordination, and strength symmetry
  • Early warning sign - Increasing asymmetry may indicate emerging problems

Walking Asymmetry Ranges

General Guidelines (Apple Mobility)

  • <3% - Low asymmetry (healthy, balanced gait)
  • 3-6% - Moderate asymmetry (may indicate minor imbalance)
  • >6% - High asymmetry (increased fall risk, consider evaluation)

📊 Individual variability: Some asymmetry is normal. Focus on changes from your baseline rather than absolute values.

How Cardio Analytics Uses Walking Asymmetry Data

  • Displays percentage trends - Track asymmetry over time
  • Flags rising asymmetry - Alerts when asymmetry increases significantly
  • Correlates with symptoms - See if pain or weakness affects gait balance
  • Fall risk assessment - Combines with walking speed and stair speed for comprehensive mobility evaluation

HealthKit Data Types

Cardio Analytics reads walking asymmetry data from Apple HealthKit using this identifier:

  • walkingAsymmetryPercentage - Gait imbalance percentage (Apple Docs)

Learn More About HealthKit Integration

Scientific References

  1. Apple. Measuring Walking Quality Through iPhone Mobility Metrics. Whitepaper. 2022. https://www.apple.com/healthcare/docs/site/Measuring_Walking_Quality_Through_iPhone_Mobility_Metrics.pdf

View All References

Track Your Walking Asymmetry with Cardio Analytics

Monitor gait balance and fall risk with validated Apple Mobility metrics.

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