Table 1 Sample characterization

U-16

75-m shallow

51

50

14.98 ± 0.50

14.62 ± 0.66

250-m flat

50

50

15.09 ± 0.50

14.48 ± 0.73

80-m with barrier

–

50

–

14.61 ± 0.72

100-m with barrier

50

–

15.00 ± 0.39

–

300-m with barrier

50

50

14.93 ± 0.52

14.48 ± 0.71

U-18

100-m flat

50

51

16.76 ± 0.78

16.45 ± 0.83

200-m flat

50

51

16.82 ± 0.73

16.46 ± 0.84

400-m flat

50

50

16.77 ± 0.64

16.49 ± 0.85

100-m with barrier

–

50

–

16.23 ± 0.93

110-m with barrier

50

–

16.58 ± 0.80

–

400-m with barrier

50

50

16.54 ± 0.74

16.05 ± 0.82