Injuries and illnesses in a cohort of elite youth alpine ski racers and the influence of biological maturity and relative age: a two-season prospective study

Figures & data

Table 1 Anthropometric data (mean ± SD) of participants according to sex

Anthropometrics	Males (n=51)	Females (n=31)
Age (years)	11.6±1.5	11.8±1.3
Height (cm)	153.4±9.0	154.9±7.7
Weight (kg)	42.3±8.1	43.8±7.9
BMI (kg/m^2)	17.8±1.9	18.1±2.2
APHV (years)	13.7±0.5	12.0±0.5

Abbreviations: BMI, body mass index; APHV, age at peak height velocity; SD, standard deviation.

Figure 1 Traumatic and overuse injuries of the total sample, separated by sex (percentage of affected athletes of total sample).

Figure 2 Severity of traumatic and overuse injuries as well as illnesses.

Figure 3 Traumatic injuries, overuse injuries, and illnesses separated by biological maturity status (percentages of affected athletes in each category).

Figure 4 Traumatic injuries, overuse injuries, and illnesses separated by relative age quarter (percentage of affected athletes in each category).

Table 2 Distribution of injury type and injured body part

Type and localization of injury	Category of injury, n (%)		Total, n (%)
	Overuse	Traumatic
Type of injury
Muscle and tendon	16 (94.1)	9 (17.3)	25 (36.2)
Ligament	0	13 (25)	13 (18.8)
Joint	1 (5.9)	3 (5.8)	4 (5.8)
Bone	0	24 (46.1)	24 (34.8)
Brain/spinal cord	0	3 (5.8)	3 (4.4)
Injured body part
Head/neck	0	3 (5.8)	3 (4.4)
Upper extremity	0	9 (17.4)	9 (13.1)
Trunk/back	1 (5.9)	1 (1.9)	2 (2.9)
Knee	14 (82.3)	19 (36.5)	33 (47.8)
Hip/thigh	2 (11.8)	5 (9.6)	7 (10.1)
Lower leg/foot/ankle	0	15 (28.8)	15 (21.7)