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Bilateral gait kinematics and EMG activity of 11 pairs of leg muscles were recorded in 14 children with CP (9 diplegic, 5 hemiplegic; 3.0\u201311.1 yr) and 14 typically developing (TD) children (3.3\u201311.8 yr). During BW, children with CP showed a significant increase of gait asymmetry in foot trajectory characteristics and limb intersegmental coordination. Furthermore, gait asymmetries, which were not evident during FW in diplegic children, became evident during BW. Factorization of the EMG signals revealed a comparable structure of the motor output during FW and BW in all groups of children, but we found differences in the basic temporal activation patterns. Overall, the results are consistent with the idea that both forms of gait share pattern generation control circuits providing similar (though reversed) kinematic patterns. However, BW requires different muscle activation timings associated with muscle modules, highlighting subtle gait asymmetries in diplegic children, and thus provides a more comprehensive assessment of gait pathology in children with CP. The findings suggest that spatiotemporal asymmetry assessments during BW might reflect an impaired state and\/or descending control of the spinal locomotor circuitry and can be used for diagnostic purposes and as complementary markers of gait recovery.<\/jats:p><jats:p>NEW &amp; NOTEWORTHY Early injuries to developing motor regions of the brain affect both forward progression and other forms of gait. In particular, backward walking highlights prominent gait asymmetries in children with hemiplegia and diplegia from cerebral palsy and can give a more comprehensive assessment of gait pathology. The observed spatiotemporal asymmetry assessments may reflect both impaired supraspinal control and impaired state of the spinal circuitry.<\/jats:p>","DOI":"10.1152\/jn.00679.2017","type":"journal-article","created":{"date-parts":[[2018,1,8]],"date-time":"2018-01-08T18:42:56Z","timestamp":1515436976000},"page":"1153-1165","source":"Crossref","is-referenced-by-count":34,"title":["Backward walking highlights gait asymmetries in children with cerebral palsy"],"prefix":"10.1152","volume":"119","author":[{"given":"Germana","family":"Cappellini","sequence":"first","affiliation":[{"name":"Centre of Space Bio-medicine, University of Rome Tor Vergata, Rome, Italy"},{"name":"Laboratory of Neuromotor Physiology, IRCCS Santa Lucia Foundation, Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesca","family":"Sylos-Labini","sequence":"additional","affiliation":[{"name":"Centre of Space Bio-medicine, University of Rome Tor Vergata, Rome, Italy"},{"name":"Laboratory of 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