Aerobic Group Exercise for Adolescents With Depression

"Progression~The goal with every new week should be making every workout a little bit harder than the week before.~Strength sessions~* Week 1-6: 12-18 reps x 2 set per exercise and muscle 30 s rest between exercises~* Week 7-12: 10-12 reps x 3 set per exercise and muscle 20 s rest between exercises~Adding weight with gym equipment or changing body position in the exercises to succeed with the rep scheme and making it harder as the group develop their physical and mental ability.~Conditioning sessions~* Week 1-6: 75 seconds work time x 1 set per exercise 30 seconds of rest between exercises~* Week 7-12: 50 seconds work time x 2 set per exercise 20 seconds of rest between exercises~Mixed sessions~* Week 1-6: 35 s work time per exercise 25 s rest between exercises x 2 rounds~* Week 7-12: 45 s work time per exercise 15 s rest between exercises x 2 rounds"

The control group will receive leisure activity in a group setting for one hour three times a week for 12 weeks. The sessions will be held at the same weekdays and about the same hours as the exercise group sessions. The same group leaders as in the exercise sessions will participate in leisure sessions and will support the adolescents through reminders and reassurance before and during the sessions to enhance adherence. The sessions will start with a check in on feelings, recent events and difficulties (i.e. supportive listening but not any interventions) followed by non heart rate increasing activities, such as playing games or watching movies together.