Table 1 Demographic and clinical characteristics of the study’s participants (n = 124)

Age (years)

65.80 ± 8.25 (50–85)

Sex, n (%): men/women

29 (23%) / 95 (77%)

Height (m)

1.64 ± 0.08 (1.50–1.83)

Weight (kg)

76.14 ± 15.57 (48–135)

Body mass index (kg/m²)

28.07 ± 4.77 (17.4–45.6)

Dominant, n (%): right/left

104 (84%) / 20 (16%)

Affected hip, n (%): right/left

68 (55%) / 56 (45%)

Nocturnal pain, n (%): no/yes

61 (49%) / 63 (51%)

Morning stiffness, n (%): no/yes

48 (39%) / 76 (61%)

Assistive device, n (%): no/yes

100 (81%) / 24 (19%)

Kellgren–Lawrence classification of hip osteoarthritis,

n (%): Grade 1/2/3/4

5 (4.0%) / 18 (14%) / 64 (52%) / 37 (30%)

International hip outcome tool (12 items): Greek version’s total score (initial assessment)

38.17 ± 23.99 (3.3–95.8)

Lower extremity functional scale: Greek version’s total score

40.64 ± 17.84 (4.0–80.0)

Modified Harris hip score: Greek version’s total score

61.4 ± 18.76 (5.3–51.8)

30 s chair-to-stand test (rep)

8.00 ± 2.66 (2.0–18.0)

Timed Up and Go test performance time (s)

14.55 ± 7.86 (6.1–45.3)

9stairs-Ascent/Descent test performance time (s)

19.71 ± 9.56 (5.3–51.8)