Table 2 Result of tele-rehabilitation for patients with knee osteoarthritis during COVID-19 in our local program (n = 21)

Upstairs difficulties (5 levels, moderate or above)

52%

33%

Downstairs difficulties(5 levels, moderate or above)

76%

57%

Walking Tolerance (mintues)

35.00 ± 28.94

40.24 ± 33.60

EQ5D3L index (1 is best)

0.74 ± 0.09

0.81 ± 0.11*

Knowledge(5 is total correct)

2.48 ± 1.81

4.24 ± 0.94*

NPRS

 At rest

2.19 ± 5.46

0.81 ± 2.68

 At movement

4.10 ± 5.94

2.00 ± 3.74*

 At walking

8.05 ± 4.36

6.86 ± 4.51

 Patient satisfaction

4.33 ± 0.73

 NGRCS

2.95 ± 2.22