Fig. 3

Participant flow and timeline. Notes: The first assessment (T1) of physical health and capacity took place just before the beginning of the offshore service season (end February). The second assessment (T2) was conducted after 6 months (August) and marked the beginning of the intervention (IT) period. The exercise IT period was 12 weeks in total (illustrated with a dumbbell), with the first 8 weeks conducted on-site and the last 4 weeks administered at home as illustrated by the offshore turbine and house pictograms, respectively. The final assessment (T3) marked the end of the intervention and was conducted in November (after 9 months). Acceptability was assessed for the on-site part of the intervention, and survey responses were collected after the first 8 weeks of the intervention