Fig. 5. Representative electromyographic (EMG) activity from the lateral hypaxial muscles of Ambystoma tigrinum during walking. (A) EMG activity in which 
- and ß-bursts occur together within a single walking stride. (B) EMG activity recorded from the same individual in which - and ß-bursts are not separated by silent periods during two strides (continuous bursts). A new locomotor cycle begins at each arrow. Filled and open bars represent our scoring of the of - and ß-bursts, respectively, for the corresponding traces. OES, m. obliquus externus superficialis; OEP, m. obliquus externus profundus; OI, m. obliquus internus; TA, m. transversus abdominis.
