Motivations, Obstacles and Opportunities for Using a Health Application to Encourage Physical Activity in People With Chronic Low Back Pain

45-minute semi-structured interview

45-minute semi-structured interview

Responses to the socio-demographic questionnaire : sex in ration Male and femalle

Responses to the socio-demographic questionnaire : age in year

Responses to the socio-demographic questionnaire : height in cm

Responses to the socio-demographic questionnaire : family situation as a couple or single

Responses to the socio-demographic questionnaire : weight in Kg

Responses to the socio-demographic questionnaire : level of education (no diploma, less than baccalaureate, baccalaureate or more than baccalaureate)

Responses to the socio-demographic questionnaire : lifestyle (active, retired, disabled)

Responses to the socio-demographic questionnaire : living environment (urban, rural)

Responses to the socio-demographic questionnaire : regular physical activity (frequency, type of activity)

Responses to the socio-demographic questionnaire : leisure activities (frequency, type)

Self-questionnaire score: Physical Activity Perception Scale (EPAP). Identification of barriers and levers to regular physical activity using the EPAP questionnaire. This questionnaire contains 26 items on the facilities and obstacles encountered when engaging in physical activity. The maximum score for this questionnaire is 100 points thanks to an equation. Responses range from "Strongly disagree" (0 points) to "Strongly agree" (4 points). The total score ranges from 0 - "Poor perception of physical activity" to 100 - "Excellent perception of physical activity".

Visual Analogue Pain Scale (VAS Pain). A value of 10 indicates very intense pain. On the contrary, a pain value of 0 means that no pain is felt.

Self-questionnaire score: OSWESTRY Disabitity Index (ODI). Questionnaire on disability rated by a Likert scale ranging from 0 "no restriction" to 5 "severe restriction". scores can range from 0 to 50 points. a score of 0 to 4 indicates no disability. A score of 5 to 14 indicates a mild disability, 15 to 24 a moderate disability, and 25 to 34 a severe disability. A higher score indicates complete disability.

Self-questionnaire score : Fear Avoidance Belief Questionnaire (FABQ). The FABQ consists of 2 subscales, corresponding to two distinct subsections. The first subscale (items 1-5) is the physical activity subscale (FABQPA; PA - Physical activity), and the second subscale (items 6-16) is the work subscale (FABQW; W-Work). Each subscale is ranked separately by summing the item responses of the respective scale (0-6 for each item). For scoring purposes, only 4 of the physical items on the activity scale are rated (24 possible points) and only 7 of the work items (42 possible points). A higher score indicates higher levels of fear-avoidance beliefs.