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. 2013 Oct 14;74(1):242–251. doi: 10.1136/annrheumdis-2013-203670

Figure 4.

Figure 4

Footprint analysis of naive, antigen-induced arthritis (AIA) and AIA+NBQX rats. (A) Day 1 hindlimb footprints from the three experimental groups. AIA rats often lacked a right footprint (circled) whereas AIA+NBQX rats displayed a gait pattern resembling that of naive animals. Measurements of degree of foot rotation, stride length and stance width are indicated. (B–D) Analysis of foot rotation in the right inflamed limb (B), stance width (C) and stride length (D). (B) AIA and AIA+NBQX rats have a significantly greater degree of foot rotation in the right limb compared with naive rats. On days 1 and 2, AIA rats were unable to weight bear and therefore lack data points. Stance width was increased (C) and stride length decreased (D) in AIA and AIA+NBQX rats compared with naive. *p<0.05, **p<0.001 AIA+NBQX compared with naive; #p<0.05, ##p<0.001 AIA compared with naive.