Influencing Factors for Physical Activity in People With Head and Neck Cancer

Inclusion criteria for people with head and neck cancer: * minimal age 18 * diagnosis of a primary head and neck squamous cell carcinoma within the last 24 months * oral, pharyngeal, or laryngeal cancer stage III or IV * completed surgery and/or radio(chemo)therapy in curative intent Exclusion criteria for people with head and neck cancer: * not having the physical, mental, and cognitive ability to understand, follow and hold a conversation in (Swiss-)German * treatment in palliative intent * recurrence of the head and neck tumour (local or distant) Inclusion criteria for significant others of people with head and neck cancer: * minimal age 18 * being a significant other (partner, spouse, close family member or friend) of an individual with a head and neck cancer with the above-mentioned criteria * having the permission of the individual affected by head and neck cancer to talk about their experiences Exclusion criteria for significant others of people with head and neck cancer: \- not having the physical, mental, and cognitive ability to understand, follow and take part in a group discussion in (Swiss-)German