PREoPerAtive pREhabilitation in Patients With Head and Neck Cancer or Liver Cancer (PREPARE)

"The prehabilitation program consists of 4 components:~1. Fitness training led by a physiotherapist. The patients will receive personalized training schedules to perform at home. The training sessions focus on improving aerobic fitness (biking or walking) and muscle strength (specific exercises for the different patient groups) and respiratory exercises aimed to relax.~2. Nutritional counseling led by a dietician. All patients will be offered an intake with a dietician (60 min) to discuss current eating habits and give personalized advices. Based on indication, patients will receive follow-up consults.~3. Smoking cessation counseling led by a trained social worker. For patients that are currently smoking, a social worker will offer counseling sessions to coach the patient in the process of smoking cessation.~4. Psychosocial counseling led by a psychologist. All patients will be offered counselling by a psychologist."