Smart insole to help correct limps

    A new "smart" insole could help people recovering from hip surgery or broken legs learn to walk without a limp.
    The insole features two resistors that measure the pressure of the wearer's foot on the ground, an accelerometer that detects leg movement and a gyroscope that monitors the position of the foot. Data from these sensors is sent to a smartphone, which then creates a real-time profile of the patient's gait and sends the feedback in the form of the user's choosing: visual, audio or sensory.