Perceptions of sedentary behaviour in people with severe asthma: a qualitative study.

People with severe asthma often lead sedentary lifestyles, which adversely affects overall health and asthma-specific outcomes. To inform future sedentary behaviour- interventions, this study aimed to explore perceptions of sedentary behaviour among people with severe asthma. Adults (≥ 18 years) with severe asthma (n = 21) participated in face-to-face interviews. Participants were asked open-ended questions about factors influencing their sitting behaviour. A thematic analysis was conducted on phrases and sentences relevant to sedentary behaviour. Participants were predominantly females (62%), with controlled asthma (median [Q1, Q3]: ACQ6 0.5 [0.2,1.8]) and receiving monoclonal antibody therapy (71%). Almost half of the participants were not meeting the physical activity guidelines (47%) and were sedentary (10.8 [9.7, 11.4] hours of sedentary behaviour per day). The analysis generated four main themes: (1) Sedentary behaviour often stems from habits and routines, (2) Asthma and associated health issues contribute to sedentary behaviour, (3) Participants' responsibilities influence their activity levels, and; (4) Participants' conscious balance between being physically active and sedentary. The results of this qualitative study offers insights into the perspectives of people with severe asthma regarding sedentary behaviour, highlighting the identification of strategies that can be implemented to improve sedentary behaviour in this population.