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Table 3 Distribution of results of SLSD: steps to reach the pain levels 2, 2 to 5, and 5

From: Evaluation and Validation of a Joint Stress Test to Induce Activity-Related Knee Joint Discomfort — a Prospective Case-Control Study

Parameters of SLSD

Test 1

Test 2

ICC

SLSD test [steps] pain 2

ArJD (n = 15)

21.1 (15.4 to 26.8)

20.5 (14.0 to 27.0)

0.555 (− 0.407 to 0.854)

OA (n = 14)

9.9 (6.6 to 13.3)

9.5 (6.7 to 13.3)

0.7 (0.024 to 0.905)

SLSD test [steps] pain between 2 and 5

ArJD (n = 15)

34.5 (24.9 to 44.1)

37.7 (28.1 to 47.4)

0.789 (0.382 to 0.929)

OA (n = 15)

14.3 (9.1 to 19.4)

13.2 (9.5 to 19.9)

0.737 (0.160 to 0.916)

SLSD test [steps] pain 5

ArJD (n = 15)

55.5 (45.0 to 66.)

58.2 (43.9 to 72.5)

0.815 (0.449 to 0.938)

OA (n = 15)

24.2 (17.1 to 31.3)

22.1 (16.2 to 28.0)

0.779 (0.352 to 0.926)

  1. Values are means (95 % CI). Abbreviations: ArJD activity-related joint discomfort, OA osteoarthritis, ICC intra-class correlation, SLSD single-leg-step-down