title: IPhone Accelerometer Determine Motion
body: <p>Using the accelerometer output, how do I determine if the user (iphone mounted on waist) is walking?</p>
  
  <p>Looking for a good algorithm to determine if the user is walking to determine activity transitions- standing-to-walking or walking-to-standing.</p>
  
  <p>please help.</p>
  
  <p>Thank you for your time.</p>