Table 1 Description in mean (SD) of the whole population and the two subgroups recruited for the hip abduction and hip adduction strength test

Study Population

All (N = 76)

Non-fallers (N = 38)

Fallers (N = 38)

Sex: F/M

41/35

22/16

19/19

Age (years)

80.46 (7.05)

78.47 (6.64)

82.45 (6.98)

Weight (kg)

67.58 (12.58)

69.25 (10.68)

65.92 (14.18)

BMI

24.89 (3.95)

25.00 (3.04)

24.78 (4.73)

SPPB^a

8.45 (3.07)

10.45 (2.37)

6.41 (2.27)

Subgroup for abduction test

Non-fallers (N = 19)

Fallers (N = 19)

P-value

Sex: F/M

11/8

9/10

Age (years)

79.84 (7.08)

81.37 (7.67)

0.528

Weight (kg)

68.15 (12.01)

66.17 (15.15)

0.658

BMI

24.71 (3.39)

23.84 (4.40)

0.500

SPPB

10.00 (2.54)

6.37 (2.03)

<0.001

ABD MVIS (N/kg)

1.23 (0.49)

0.77 (0.37)

<0.01

ABD RFG (N/kg/s)

7.65 (5.27)

3.498 (2.51)

<0.01

Subgroup for abdduction test

Non-Fallers (N = 19)

Fallers (N = 19)

P-value

Sex: F/M

11/8

10/9

Age (years)

77.11 (6.04)

83.53 (6.23)

<0.01

Weight (kg)

70.35 (9.36)

65.66 (13.55)

0.222

BMI

25.28 (2.72)

25.72 (4.99)

0.743

SPPB^a

10.89 (2.16)

6.44 (2.55)

<0.001

ADD MVIS (N/kg)

1.40 (0.43)

0.93 (0.51)

<0.01

ADD RFG (N/kg/s)

5.61 (2.99)

2.80 (2.46)

<0.01