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. 2017 Dec 22;7:29. doi: 10.1186/s13395-017-0145-7

Fig. 4.

Fig. 4

Effect of 6-week exposure to LIPUS on muscle strength. Rats were tested three times in succession without rest. a Before LIPUS treatment. b After LIPUS treatment. **P < 0.01 versus NC; ## P < 0.01 versus DC group