Table 1.

Baseline characteristics (n = 24)

Age, years, mean (SD)	67 (8)
Men, no (%)	10 (42)
Body weight, kg, mean (SD)	85.7 (14.3)
Height in cm, mean (SD)	172.3 (9.5)
Body mass index, mean (SD)	28.8 (3.7)
Other diseases, no (%)	22 (92)
Operated knee (right/left), no (%)	10 (42)/ 14 (58)
Opposite knee operated, no (%)	12 (50)
Fall(s) within the last ½ year, no (%)	5 (21)
Pain medication before testing, no (%)	23 (96)
No. of rehabilitation sessions before testing, mean (SD)	5.8 (2.4)
Strength training part of the rehabilitation, no (%)	24 (100)
Rehabilitation center (Van/VKV/Hvh/Br), no (%)	11 (46)/ 5 (21)/ 6 (25)/ 2 (8)
Days after operation, mean (SD)	38.3 (9.4)
Knee joint circumference, cm, mean (SD)	45.5 (2.9)
Knee PROM extension, degrees, mean (SD)a	2.5 (6.2)
Knee PROM flexion, degrees, mean (SD)	112.3 (15.5)

No Number, SD 1·Standard deviation, IQR Interquartile range, Van Vanløse, VKV Vesterbro/Kgs. Enghave/Valby, Hvh Hvidovre and Br Brøndby, PROM passive range of motion (ROM)

^a Positive knee extension scores indicate ROM limitation (inability to reach the 0° starting position)