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Nerves to soleus (SO) and lateral gastrocnemius (LG) of six adult cats were surgically transected and repaired. Intramuscular myoelectric signals of SO, LG, medial gastrocnemius (MG), and plantaris (PL), muscle fascicle length of SO and MG, and hindlimb mechanics were recorded during level and slope (\u00b127\u00b0) walking before and after (10\u201312 wk postsurgery) self-reinnervation of LG and SO. Mean myoelectric signal intensity and frequency were determined using wavelet analysis. Following SO and LG self-reinnervation, mean myoelectric signal intensity increased and frequency decreased in most conditions for SO and LG as well as for intact synergist MG ( P &lt; 0.05). Greater elongation of SO muscle-tendon unit during downslope and unchanged magnitudes of ankle extensor moment during the stance phase in all walking conditions suggested a functional deficiency of ankle extensors after self-reinnervation. Possible effects of morphological reorganization of motor units of ankle extensors and altered sensory and central inputs on the changes in myoelectric activity of self-reinnervated SO and LG are discussed.<\/jats:p>","DOI":"10.1152\/jn.00565.2015","type":"journal-article","created":{"date-parts":[[2016,2,25]],"date-time":"2016-02-25T04:37:10Z","timestamp":1456375030000},"page":"2406-2420","source":"Crossref","is-referenced-by-count":13,"title":["Increased intensity and reduced frequency of EMG signals from feline self-reinnervated ankle extensors during walking do not normalize excessive lengthening"],"prefix":"10.1152","volume":"115","author":[{"given":"Annette","family":"Pantall","sequence":"first","affiliation":[{"name":"School of Applied Physiology, Center for Human Movement Studies, Georgia Institute of Technology, Atlanta, Georgia;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emma 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