Table 1 Demographic data. Data are displayed as mean(SD) unless specified otherwise

Gender ratio (M/F)

6/8

4/10

2/12

1/13

Age (year)

42.9 (\(\pm\) 18.7)

50.0 (\(\pm\)17.4)

27.3 (\(\pm 5.0\))

\(55.0 (\pm\)19.1)

Body mass (kg)

68.6 (\(\pm\) 13.5)

80.4 (\(\pm 7.3\))

71.5 (\(\pm\) 12.9)

79.7 ( \(\pm\) 14.2)

Height (cm)

167.1 (\(\pm 7.9\))

168.3 (\(\pm\)11.3)

167.3 (\(\pm\) 10.0)

161.0 (\(\pm\) 7.4)

Injured side or dominant side (R/L)

12/2

8/6

13/6

4/10

FPI-6 injured foot

4.8 (\(\pm\) 3.4)

3.6 (\(\pm 2.8)\)

6.0 (\(\pm 2.7\))

9.3 (\(\pm\) 2.2)

FPI-6 healthy foot

4.6 (\(\pm\) 3.3)

3.4 (\(\pm2.4)\)

6.6 (\(\pm\) 3.0)

6.4 (\(\pm\) 2.8)

FAAM ADL (/84)

84.0 (\(\pm 0.0)\)

63.2 (\(\pm\) 15.3)

75.3 (\(\pm\)6.7)

55.4 (\(\pm\) 17.6)

FAAM S (/32)

32.0 (\(\pm 0.0)\)

18.7 (\(\pm\) 10.6)

23.6 (\(\pm\) 5.9)

13.2 (\(\pm\) 6.9)

Time since last sprain (months)

-

-

38.8 (\(\pm\) 38.1)

-

Time since first sprain (months)

-

-

146.5 (\(\pm\) 80.6)

-

Number of sustained sprains

-

-

5.7 (\(\pm\) 3.3)

-

Give way frequency (nb/month)

-

-

4.2 (\(\pm\) 3.5)

-

CAIT (/30)

-

-

17.1 (\(\pm\) 4.7)

-

Duration of symptoms (months)

-

6.6 (\(\pm\) 4.9)

-

8.2 (\(\pm\) 7.1)

Johnson and Strom Classification (stage I/stage II)

-

-

-

4/10