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. Author manuscript; available in PMC: 2009 Sep 15.
Published in final edited form as: Arch Phys Med Rehabil. 2008 Apr;89(4):754–760. doi: 10.1016/j.apmr.2007.11.027

Fig. 4.

Fig. 4

Line graphs representing mechanical thresholds of the (A) ipsilateral paw and (B) knee joint from animals that received mixed- and alternating-frequency TENS, and sham TENS. Baseline corresponds to time before the induction of knee inflammation. Error bars represent the SEM. *Significantly different from baseline; †mixed- and alternating-frequency TENS significantly different from before TENS treatment; ‡mixed-and alternating-frequency TENS significantly different from sham TENS (P<.05).