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. 2023 Jun 12;9(2):e001456. doi: 10.1136/bmjsem-2022-001456

Table 3.

Participant characteristics

Method Target group Total N Sex (male),
N (%)
Age (in years), mean Position
N (%)
Gender team
N (%)
Category team*
N (%)
Questionnaire Trainers/coaches (who participated in study via WUP) 61 N=61†
32 (53)
N=61†
39
(SD=15, min: 16, max: 68)
Trainer/coach
Trainer
Coach
N=51†
29 (57)
8 (16)
14 (28)
Boys
Girls
Mix
N=53†
11 (21)
41 (77)
1 (2)
A-team
B-team
C-team
D-team
E-team
N=52
7 (14)
13 (25)
10 (19)
11 (21)
11 (21)
Questionnaire Trainers/coaches (who participated in study via KNHB training course) 165
Questionnaire TBMs 14 N=14†
13 (93)
N=14†
52
(SD=6, min: 43, max: 67)
Tech. director
Tech. manager
Tech. coordinator
Tech. committee
N=13†
1 (7)
3 (23)
3 (23)
6 (46)
Interviews Trainers/coaches‡ 4 2 (50) 45
(SD=4, min: 40, max: 48)
Trainer/coach
Coach
Trainer
2 (50)
1 (25)
1 (25)
B-team
E-team
1 (25)
3 (75)
TBMs‡ 4 4 (100) 54
(SD=10, min: 43, max: 67)
Tech. director
Tech. manager
Tech. committee
1 (25)
1 (25)
2 (50)
KNHB 2 1 (50)

*A-team: age 16/17, B-team: age 14/15, C-team: age 12/13, D-team: age 9/10/11, E-team: age 8/9.

†The N of the questionnaires of the WUP users is described per question due to not all participants completing the full questionnaire.

‡Considering the use/promotion of WUP: three of the trainers/coaches were users of WUP and one was a non-user. Three of the TBMs promoted WUP within their hockey club and one did not.

KNHB, Royal Dutch Hockey Federation; TBMs, technical/board members; WUP, Warming-up Hockey.