Table 2.

Participant time spent on intervention and estimated workloss costs.

Intervention Element	Time/cost to participant	Workloss Costing over 12m (@ mean hourly rate £16.02)
Desks set-up and demonstration	Varidesk: 10 min to set up (n = 45) Electric desk: 30 min to remove old desk and set up new desk (n = 30)	Assume 15 mins one-off workloss = £4.00
Seminar	Approx. 45 min of their workday to attend a one off seminar on site	Assume 45mins one-off workloss = £12.02
activPAL feedback reading and reading initial leaflet Self-monitoring sitting via DARMA cushion (per unit) Gola setting diaries	activPAL and leaflet total time per participant is 15 min Utilising DARMA feedback and diaries a total time of 5 min per week per participant	Workloss (50*5mins + 15min = 265mins) = £70.71
Coaching sessions	Brief 10 min with researcher to discuss progress, motivations, goals and plans every 3 months = a total of 40 min over a 12-month period per participant	Assume 40mins one-off workloss = £10.67
TOTAL	Intervention cohort (n = 75) Per participant	£7305 £97.40