Table 2 General data and sport activity.
N %
Gender Males Females 86
80		 51.8
48.2
BMI** < 20.6
≥ 20.6		 90
76		 54.2
45.8
Level Competitive Recreational 110
56		 66.3
33.7
Speciality Sprint Hurdles Middle distance Long distance 26
10
66
64		 15.7
6.0
39.7
38.6
Surfaces * Athletics track Street Field 134
114
54		 80.7
68.7
32.5
Shoes * A1
A2
A3
A7		 12
90
82
80		 7.2
54.0
49.0
48.0
Days of practice per week** < 5
≥ 5		 64
102		 38.5
61.5
Km per week** < 47
≥ 47		 82
84		 49.4
50.6
** The median value was chosen as the cutoff.* A single runner often runs on different surfaces and with different shoes,