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,