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Figure 4


Fig. 4. Mean normalized EMGs from six dogs when they trotted downhill on an incline of 14° to the horizontal (i.e. fore/aft force manipulation). For each muscle, the black line represents the average EMG when the dogs trotted on the level (control) and the gray line represents the average EMG when the dogs trotted on the incline. For each dog, the trotting speed was the same during the control and incline trials. The error bars are the standard error of the mean for each sampling bin.





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