Ā | Run-in phase | Intervention phase | Maintenance | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
week | ā6 | ā5 | ā4 | ā3 | ā2 | ā1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
Diet group | Ā | Ā | Ā | |||||||||||||||||||
-diet composition | Baseline diet | Energy restricted diet (ā500Ā kcal/day) | Ā | |||||||||||||||||||
-dietary counselling* | F | Ā | T | Ā | T | Ā | F | G | T | G | T | G | T | Ā | T | G | T | Ā | Ā | F, G | Ā | T |
Exercise group | Ā | Ā | Ā | |||||||||||||||||||
-diet composition | Baseline diet | Energy restricted diet (ā250Ā kcal/day) | Ā | |||||||||||||||||||
-dietary counselling* | F | Ā | T | Ā | T | Ā | F | Ā | T | Ā | T | Ā | T | Ā | T | Ā | T | Ā | Ā | F | Ā | T |
-exercise programme** | Ā | Aerobic and strength training (4Ā hours/week) | Ā | |||||||||||||||||||
Ā | Ā | Ā | Ā | Ā | Ā | Ā | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E |
Control group | Ā | Ā | Ā | |||||||||||||||||||
-diet composition | Baseline diet | Baseline diet | ||||||||||||||||||||
-dietary counselling* | F | Ā | T | Ā | T | Ā | T | Ā | Ā | Ā | T | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | T |
Measurements*** | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā |
-Habitual dietary intake (dietary history) | X | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā |
-Actual dietary intake (3-day food records) | Ā | Ā | Ā | X | Ā | Ā | Ā | Ā | Ā | X | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | X | Ā |
-Habitual physical activity (questionnaires) | Ā | Ā | Ā | Ā | Ā | Ā | X | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | X |
-Actual physical activity (accelerometer) | X | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | X | Ā |
-Anthropometrics (weight, waist, hip circumference); body composition (DEXA); visceral and subcutaneous abdominal fat (MRI); fitness (maximal exercise test); blood pressure; sex hormones (blood sampling) | Ā | Ā | Ā | Ā | Ā | Ā | X | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | Ā | X |