In the asymptomatic control group the mean FPPA for SLS was 8.4±5.1° (range 2.5–20.5°), SLL had a mean FPPA of 13.5±5.7° (range 4–26.8°) as shown in Fig. 1. In the PFP group the mean FPPA for SLS was 16.8±5.4° (range 5–22.5°), SLL had a mean FPPA of 21.7±3.6° (range 4–26.8°) as shown in Fig. 1. The FPPA for the uninjured knee of the PFP subjects are also presented in Fig. 1. Table 2 shows the numeric rating pain score for all limbs undertaking the task.