Nike and Microsoft closed the online service for Nike+ Kinect Training on Xbox 360 on July 21, 2017 PT.
You can continue to enjoy your favorite Nike+ Kinect Training workouts locally on your Xbox 360, but NikeFuel will no longer be generated or sync to your NikePlus Profile. All NikeFuel generated and synced prior to the closure of services will be visible when you log in to NikePlus.
To track your progress and continue to sync workout data to your NikePlus Profile, join Nike+ Training Club. As a NikePlus Member, you can gain the ultimate training experience with over 100 workouts, expert guidance, personalized plans, and more.