Congenital muscular torticollis(CMT) is a common musculoskeletal condition in infancy that may result in asymmetrical posture and weight-bearing patterns, limited cervical range of motion, and delayed motor development. This randomized controlled trial aims to investigate the effects of weight shift training on upper extremity weight-bearing symmetry in infants with CMT.
A total of 30 infants aged 6 to 12 months diagnosed with CMT will be randomly assigned to either an experimental group(n = 15) or a control group(n = 15). The experimental group will receive weight shift training in prone and sitting positions in addition to stretching exercises, while the control group will receive stretching exercises only. Both groups will participate in 30-minute intervention sessions three times per week for eight weeks.
The primary outcome is upper extremity weight-bearing symmetry, which will be assessed using the Balancia software system. Secondary outcomes include motor development assessed by the Alberta Infant Motor Scale(AIMS), head tilt angle, and passive cervical rotation range of motion. The findings of this study may provide evidence regarding the effectiveness of weight shift training in improving postural symmetry and motor function in infants with congenital muscular torticollis.
Diagnosed with congenital muscular torticollis by a physician
Head tilt angle of 15 degrees or greater and limitation of passive cervical rotation range of motion
Able to independently maintain the prone position and demonstrate asymmetrical upper extremity weight bearing
Diagnosed with non-muscular torticollis, including postural torticollis or ocular torticollis
Presence of congenital cervical spine abnormalities or neurological complications
Any medical condition that may interfere with participation in the intervention or outcome assessments
Parallel
Weight Shift Training
Other interventionWeight shift training will be performed in prone and sitting positions to facilitate symmetrical weight bearing and postural control in infants with congenital muscular torticollis.
Stretching Exercise
Other interventionStretching exercises will be performed to improve head tilt and cervical range of motion in infants with congenital muscular torticollis.
Symmetry of Upper Extremity Weight Bearing in the Prone Position
Symmetry of Upper extremity weight bearing in the prone position will be assessed using the Balancia software system. Weight bearing distribution between the left and right upper extremities will be measured.
Head tilt
Head tilt will be measured to evaluate postural asymmetry associated with congenital muscular torticollis.
Cervical rotation passive range of motion
Cervical rotation passive range of motion will be measured using standard clinical assessment procedures.
Motor Development Assessed by the Alberta Infant Motor Scale
Motor development will be assessed using the Alberta Infant Motor Scale. The Alberta Infant Motor Scale is an observational measure of infant motor development with scores ranging from 0 to 58, where higher scores indicate better motor development.
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