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Table 3 Physical activity outcomes, extracted from the AX3 (n = 61)

From: Objective assessment of physical activity and sedentary behaviour in knee osteoarthritis patients – beyond daily steps and total sedentary time

Parameter Mean (±SD) Range
Total wear time 14. 7 (1.2) 11.7–17.6
Time spent (h)
 Sitting 8.9 (1.8) 4.7–13.3
 Standing 4.0 (1.4) 1.3–9.2
 Walking 1.6 (0.4) 0.4–2.4
 Bicycling 0.2 (0.3) 0.0–1.3
Bouts of steps (n)
 Level 232 (66) 48–379
 Up 25 (15) 4–64
 Down 22 (14) 2–55
Amount of steps (n)
 Total 7934 (2326) 1902–13,560
 Level 7303 (2137) 1611–12,984
 Up 319 (288) 15–1255
 Down 312 (343) 18–2280
Cycling
 Crank revolutions 601 (754) 0–3959
Walking periods (n)
 0–5 s 4.4 (2.7) 0.0–10.7
 5–10 s 61.2 (22.4) 10.2–123.2
 300–600 s 0.5 (0.5) 0.0–1.9
  > 600 s 0.1 (0.2) 0.0–0.8
Sedentary periods (n)
 0–10 s 3.6 (2.7) 0.38–12.0
 10–60 s 15.4 (9.1) 3.3–37.7
 1200–1800 s 2.6 (0.9) 0.6–4.6
  > 1800 s 4.6 (1.7) 1.2–9.2
STS transfers (n) 52 (18) 26–105
Cadence (steps/min) 100.3 (10.6) 74.0–136.8
  1. STS Sit-to-stand