American football (referred to as football in the United States and also known as gridiron) is a sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with control of the oval-shaped football, attempts to advance down the field by running with or passing the ball, while the team without control of the ball, the defense, aims to stop their advance and take control of the ball for themselves. The offense must advance at least ten yards in four downs, or plays, or else they turn over the football to the opposing team; if they succeed, they are given a new set of four downs. Points are primarily scored by advancing the ball into the opposing team's end zone for a touchdown or kicking the ball through the opponent's goalposts for a field goal. The team with the most points at the end of a game wins.American football as a whole is the most popular sport in the United States; professional football and college football are the most popular forms of the game, with the other major levels being high school and youth football. American football evolved in the United States, originating from the sport of rugby football.
This app includes quarterback specific drills and strength training, increase your throwing accuracy, agility, footwork and arm power. Also has training and drills for linebacker(tackling,shed blocks,cover receivers), specific training for the running backs.
Ofensive and defensive training, team tactics and strength training, whether you are a receiver, running back, or lineman, speed and strength matter the most. These workouts help you to gain speed, put on muscle with out loosing your flexible and athletic.