Teams can practice twice a day for two hours each time during summer training camp.
When a football team wins a game, they can see that their time in the field of practice is the main reason for their positive performance. The coaches will decide how much practice time based on the time of year, recent team performance and if they will introduce new plays.
Football teams invariably spend more time in practice during summer training camp. A professional and university level, double sessions occur regularly. Teams often practiced for 90 minutes during a morning or early afternoon and come back and practice for two hours in an afternoon session. Modern coaches are more concerned about having players practice in the middle of a summer day as they were generations. Bears coach Lovie Smith Chicago cut short practice in training camp when temperatures exceed 95 degrees and the humidity is high.