Table 1

Respondents’ perceptions of lower limb (LL) injury susceptibility, injury seriousness and injury prevention exercise programmes, including the Health Belief Model (HBM) constructs53 and Reach Effectiveness Adoption Implementation Maintenance (RE-AIM) framework dimensions52 which each question related to

Theme	Statement	HBM construct	RE-AIM* dimension(s)	n	Agree % (95% CI)†	Neither agree nor disagree % (95% CI)†	Disagree % (95% CI)†
Injury susceptibility and seriousness	Soccer players are at high risk of suffering a LL injury	Perceived susceptibility	A, M	18	94 (90 to 98)	6 (2 to 10)	0
	LL injuries can shorten a professional soccer player's career	Perceived seriousness	A, M	18	100	0	0
	LL soccer injuries can cause physical problems later in life	Perceived seriousness	A, M	18	100	0	0
	LL injuries have a negative impact on team performance	Perceived seriousness	A, M	18	89 (84 to 94)	11 (6 to 16)	0
	LL injuries have a negative impact on a soccer player's quality of life	Perceived seriousness	A, M	18	100	0	0
Injury prevention exercise programmes	It is possible to prevent some LL soccer injuries	Perceived benefit	A, E	18	100	0	0
	Exercises which have been scientifically proven to prevent LL injuries should be performed by soccer players	Perceived benefit	A, M	18	100	0	0
	Exercises to prevent injuries should be varied and progressed over time	Cues to action	A, I, M	18	100	0	0
	Exercises which have been scientifically proven to prevent LL injuries should be incorporated into the club's training guidelines	Cues to action	M	18	94 (90 to 98)	6 (2 to 10)	0
	Balance exercises can prevent LL injuries	Perceived benefit	E, A, I	18	100	0	0
	Controlled jumping/landing can prevent LL injuries	Perceived benefit	E, A, I	18	100	0	0
	Eccentric muscle strengthening can prevent LL injuries	Perceived benefit	E, A, I	18	100	0	0
	A warm-up jog/run can prevent LL injuries	Perceived benefit	E, A, I	18	100	0	0
	Cutting exercises can prevent LL injuries	Perceived benefit	E, A, I	18	100	0	0
	Cool-down jog/run can prevent LL injuries	Perceived benefit	E, A, I	18	61 (54 to 68)	17 (11 to 23)	22 (16 to 28)

*Reach Effectiveness Adoption Implementation Maintenance (RE-AIM) framework: E=effectiveness, A=adoption, I=implementation, M=maintenance.
†In cases of 0% and 100% agreement, 95% CIs calculations returning (0–0) or (100–100) are left blank.