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. Author manuscript; available in PMC: 2010 Jun 24.
Published in final edited form as: J Orthop Res. 2009 May;27(5):571–577. doi: 10.1002/jor.20790

Figure 5.

Figure 5

Patellofemoral (PF) joint kinematics measured from real-time MRI in a group of 13 pain-free female control subjects and 23 females with patellofemoral pain (PFP). The solid and dashed lines represent the means of each subject group and the shaded regions ± 1 SD. (A) Relationship between bisect offset and knee flexion angle. The subjects with pain exhibited larger bisect offset for knee flexion angles ≤50°. (B) Relationship between patellar tilt angle and knee flexion angle. Pain subjects exhibited larger tilt for knee flexion angles <20°.