Table 1. Information on participants for HSI‡ group.

Participant	Age (years)	Hight (cm)	Weight (kg)	Injured limb	Time since injury * (months)	Total number of HSI †	Activity at time of injury
1	24	163	61	non-dominant leg	4	3	Sprinting
2	29	177	73	non-dominant leg	6	2	Sprinting
3	24	176	61	dominant leg	23	2	Sprinting
4	18	172	64	non-dominant leg	23	1	Sprinting
5	19	176	62	dominant leg	36	1	Sprinting
6	18	176	67	non-dominant leg	35	2	Sprinting
7	23	172	68	non-dominant leg	6	2	Sprinting
8	23	169	68	dominant leg	3	1	Sprinting
9	23	175	68	dominant leg	6	3	Sprinting
10	29	172	70	dominant leg	6	1	Sprinting
11	29	172	68	dominant leg	9	3	Sprinting
12	22	183	73	dominant leg	6	2	Sprinting
13	27	169	65	dominant leg	26	3	Sprinting

Time since injury *: The length of time since the most recent return to HSI.Total number of HSI †: Number of previous HSI and abbreviations (HSI) indicate hamstring strain injury.HSI‡: Hamstring strain injury.