However, in a redshirt year, student athletes may attend classes at the college or university, practice with an athletic team, and dress for play but may not compete in games. Using this mechanism, a student athlete has up to five academic years to use the four years of eligibility, thus becoming a fifth-year senior.
According to the Dietary Guidelines for Americans 2010, sedentary teen girls ages 13 to 18 need about 1,600 to 1,800 calories a day, while sedentary teen boys within the same age range require about 2,000 to 2,400 calories daily to maintain healthy body weights.
According to theory, your teen will gain one pound of weight by consuming around 3,500 calories (6). On an average, your teenage girl needs 1,600 to 1,800 calories per day, while your boy will need between 2,000 and 2,400 calories per day if they mostly have a sedentary lifestyle (7). Roughly, one to two pounds per week is an ideal number for healthy weight gain in teens.