Spatial Characteristics of Jaw Movements During Chewing in Children with Cerebral Palsy: A Pilot Study. 2018

Ignatius S B Nip, and Erin M Wilson, and Lucia Kearney
School of Speech, Language and Hearing Sciences, San Diego State University, San Diego, CA, USA. inip@mail.sdsu.edu.

This study compared jaw motion between children with cerebral palsy (CP) and their typically-developing (TD) peers during chewing. The jaw movements of 11 children with spastic CP (GMFCS levels II-V) all of whom were exclusively oral feeders with no reported clinical issues with feeding [mean age = 7.49 (2.30) years; 7 males, 4 females] and 11 age- and sex-matched TD peers [mean age = 7.54 (2.35) years] were recorded using optical motion capture. Participants chewed five trials of three different consistencies, including puree, mechanical soft, and solid. For each chewing sequence, the path distance (total amount of distance traveled by the jaw), average jaw speed, and working space (total 3-dimensional size of the jaw movements during chewing) were calculated. The CP group had greater path distances for mechanical soft and solids (p < 0.001) and larger working spaces (p < 0.001) than the TD group. Consistency differences were also found with path distances increasing for both groups with increased bolus consistency (p < 0.001). Puree was chewed most slowly for both groups (p = 0.05) and was associated with smaller working space than the other consistencies for both groups (p < 0.001). The TD group demonstrated slower speeds for mechanical soft as compared to solids (p = 0.05), a finding which was not observed in the CP group. The results suggest children with CP showed jaw movement differences during chewing despite being exclusive oral eaters with no reports of clinical feeding or deglutition disorders. Food consistency also influenced jaw movements in both children with CP and their TD peers.

UI MeSH Term Description Entries
D008297 Male Males
D008409 Mastication The act and process of chewing and grinding food in the mouth. Chewing
D009055 Mouth The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper. Oral Cavity,Cavitas Oris,Cavitas oris propria,Mouth Cavity Proper,Oral Cavity Proper,Vestibule Oris,Vestibule of the Mouth,Cavity, Oral
D009068 Movement The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior. Movements
D010865 Pilot Projects Small-scale tests of methods and procedures to be used on a larger scale if the pilot study demonstrates that these methods and procedures can work. Pilot Studies,Pilot Study,Pilot Project,Project, Pilot,Projects, Pilot,Studies, Pilot,Study, Pilot
D002547 Cerebral Palsy A heterogeneous group of nonprogressive motor disorders caused by chronic brain injuries that originate in the prenatal period, perinatal period, or first few years of life. The four major subtypes are spastic, athetoid, ataxic, and mixed cerebral palsy, with spastic forms being the most common. The motor disorder may range from difficulties with fine motor control to severe spasticity (see MUSCLE SPASTICITY) in all limbs. Spastic diplegia (Little disease) is the most common subtype, and is characterized by spasticity that is more prominent in the legs than in the arms. Pathologically, this condition may be associated with LEUKOMALACIA, PERIVENTRICULAR. (From Dev Med Child Neurol 1998 Aug;40(8):520-7) Diplegic Infantile Cerebral Palsy,Little Disease,Monoplegic Cerebral Palsy,Quadriplegic Infantile Cerebral Palsy,Spastic Diplegia,CP (Cerebral Palsy),Cerebral Palsy, Athetoid,Cerebral Palsy, Atonic,Cerebral Palsy, Congenital,Cerebral Palsy, Diplegic, Infantile,Cerebral Palsy, Dyskinetic,Cerebral Palsy, Dystonic-Rigid,Cerebral Palsy, Hypotonic,Cerebral Palsy, Mixed,Cerebral Palsy, Monoplegic, Infantile,Cerebral Palsy, Quadriplegic, Infantile,Cerebral Palsy, Rolandic Type,Cerebral Palsy, Spastic,Congenital Cerebral Palsy,Diplegia, Spastic,Infantile Cerebral Palsy, Diplegic,Infantile Cerebral Palsy, Monoplegic,Infantile Cerebral Palsy, Quadriplegic,Little's Disease,Monoplegic Infantile Cerebral Palsy,Rolandic Type Cerebral Palsy,Athetoid Cerebral Palsy,Atonic Cerebral Palsy,Cerebral Palsies, Athetoid,Cerebral Palsies, Dyskinetic,Cerebral Palsies, Dystonic-Rigid,Cerebral Palsies, Monoplegic,Cerebral Palsy, Dystonic Rigid,Cerebral Palsy, Monoplegic,Diplegias, Spastic,Dyskinetic Cerebral Palsy,Dystonic-Rigid Cerebral Palsies,Dystonic-Rigid Cerebral Palsy,Hypotonic Cerebral Palsies,Hypotonic Cerebral Palsy,Mixed Cerebral Palsies,Mixed Cerebral Palsy,Monoplegic Cerebral Palsies,Spastic Cerebral Palsies,Spastic Cerebral Palsy,Spastic Diplegias
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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