Table 2.

Information about training conditions in U-15 youth soccer during the 2019 season.

Variable (n = 681)	Value
Warm-up duration (minutes)	18.11 ± 11.57
Training exposure
Training duration per session (minutes)	117.64 ± 24.73
Training session per day (sessions)	1.59 ± 0.77
Training day per week (days)	5.28 ± 0.74
Training month per year (months)	11.55 ± 1.09
Type of training field
Artificial ground	663 (97.4)
Soft ground	0 (0)
Hard ground	2 (0.3)
More than two answers	1 (0.1)
No answer	15 (2.2)

Values are expressed as mean ± standard deviation or number (% of total injuries).