Biomechanical Alterations during Sit-to-Stand Transfer Are Caused by a Synergy between Knee Osteoarthritis and Obesity

Table 1

Patient characteristics of the three different study groups, presented as mean (± SD).

Demographics	Group
	Control (n=22)	Lean knee OA (n=14)	Obese knee OA (n=19)
Age (years)	58.7 (4.4)	60.1 (3.5)	59.0 (5.1)
Height (m)	1.66 (0.04)	1.67 (0.05)	1.62 (0.07)^1,2
Weight (kg)	62.9 (6.1)	66.1 (7.3)	86.4 (12.3)^1,2
BMI (kg/m^2)	22.5 (2.0)	23.7 (2.3)	32.4 (3.4)^1,2
KL-score	-	2.21 (0.74)	2.38 (0.70)
MOAKS (score/items)	0.50 (0.42)	1.01 (0.69)^1	1.22 (0.66)^1

Note. BMI = body mass index, KL = Kellgren-Lawrence, MOAKS = MRI osteoarthritis knee score, and OA = osteoarthritis.
1 = significantly different from control.
2 = significantly different from lean knee OA.