Table 1.

Classification of possible factors associated with physical activity among CRC survivors, according to the Health Belief Model

Perceived control beliefs	Symptom-related barriers	Fatigue
		Pain
		Nausea
		Dyspnea
		Insomnia
		Appetite loss
		Financial problems
		Micturition problems
		Chemotherapy side effects
		Gastro-intestinal problems
		Stoma-related problems
		Defecation problems
		Weight loss
	Functioning-related barriers	Physical functioning
		Role functioning
		Social functioning
		Emotional functioning
		Cognitive functioning
		Global quality of life
		Body image
		Future perspective
	Psychological barriers	Anxiety
		Depressive symptoms
Socio-demographic factors		Gender
		Age
		Partner
		Educational level
Clinical factors		Years since diagnosis
		Localization of cancer
		Tumor stage
		Treatment
		Stoma
		Number of comorbidities
		Body mass index (BMI)