First Fitness Challenge: John Begins His Get Strong Training. Part of the series: Train For Your Moment. In this video: First Fitness Challenge: John Begins His Get Strong Training. Part of the series: Train For Your Moment. John experiences the Nike+ Kinect Get Strong at-home training program for the first time as he gears up for his upcoming championship basketball game. After undergoing an assessment of his fitness level, John receives a personalized 4-week at home training program for developing the explosive power he needs to reach his game-day goal