Abstract
Physical activity behaviour has not been previously described in hospitalised adults with burn injuries. This prospective, cross-sectional study used a standardised behavioural mapping protocol to observe patient behaviour related to physical activity over a 12-hour period on one weekday in a quaternary referral specialist burn centre. Structured observations were recorded for each of four domains: 1) patient location, 2) position, 3) activity performed and 4) the presence of others. Observations were summarised across all participants as median (IQR) proportion of time. Participants (n=17) were predominantly male (82%) with a mean age of 44.3 (SD 15.2) years, a mean burn size of 34.9% (SD 26.7) total body surface area and a median hospital length of stay of 18 (IQR 6-49) days at time of observation. Participants spent a median of 83% (IQR 73-93) of time in their bedroom, 92% (IQR 68-97) of time in or on their bed and a median of 5% (IQR 3-13) of time mobilising. Exercise accounted for 10% (IQR 8-17) of activity related observations. A median of 68% (IQR 39-83) of time was spent alone. Results suggest time spent engaging in physical activity is low. Further studies are required to investigate motivators and barriers to performing physical activity in this population. This will consequently inform the development and implementation of appropriate strategies to improve physical activity behaviour in this cohort.