Downloadable software for tracking athletic performance and injury risk; Sensors attached to shoes to track running , distance, pace, elevation gained, steps, stride length, cadence, ground contact time, pronation, foot strike pattern, force, running economy, vertical oscillation, symmetry, GPS navigation, weather information, temperature, wind speed, and altitude; Smart shoes, namely, shoes with advanced sensor technology for displaying, measuring, uploading information including distance, pace, elevation gained, steps, stride length, cadence, ground contact time, pronation, foot strike pattern, force, running economy, vertical oscillation, symmetry, GPS navigation, weather information, temperature, wind speed, and altitude; Wearable electronic devices to track detailed running metrics; Wearable activity trackers; Wearable electronic devices; Wearable electronic devices comprising software that communicates data to smartphones, tablets and personal computers through Internet websites and other computer and electronic communication networks; Downloadable mobile application featuring software for tracking fitness and physical activity, athletic performance, and injury risk; Downloadable software for smart watches, smart phones, mobile phones, and computers for tracking fitness and physical activity, athletic performance, and injury risk; Electronic sensors to measure athletic performance and injury risk; Electronic sensors to measure movement; Electronic data processing apparatus