Parameters

LBP athletes

(n = 85)

Other athletes

(n = 56)

p

Age (years), (Mean ± SD)

16.78 ± 1.61

15.88 ± 1.85

0.004

BMI (Mean ± SD)

23.01 ± 3.22

21.5 ± 2.67

0.003

Practicing years (Mean ± SD)

4.16 ± 2.12

3.58 ± 2.02

0.107

Training hours per week (Mean ± SD)

11.51 ± 4.8

11.3 ± 4.56

0.803

Sport categories

Throwing (n/%)

31/73.8

11/26.2

Running (n/%)

38/56.7

29/43.3

0.083

Jumping (n/%)

16/50

16/50

Flexibility tests

Schober’s index (cm) (Mean ± SD)

15.24 ± 0.98

16.02 ± 0.77

0.008

Popliteal angle (˚) (Mean ± SD)

7.96 ± 6.80

6.07 ± 5.93

0.084

heel-buttock distance (cm) (Mean ± SD)

1.83 ± 1.60

1.4 ± 1.12

0.139