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The Effects of Weight Shift Training on the Symmetry of Upper Extremity Weight Bearing in the Prone Position in Infants With Congenital Muscular Torticollis

The Effects of Weight Shift Training on the Symmetry of Upper Extremity Weight Bearing in the Prone Position in Infants With Congenital Muscular Torticollis

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07663721
Enrollment
30
Registered
2026-06-23
Start date
2026-06-30
Completion date
2026-10-01
Last updated
2026-06-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Congenital Muscular Torticollis

Keywords

Congenital Muscular Torticollis, Weight Shift Training, Upper Extremity Weight Bearing Symmetry, Postural Control, Alberta Infant Motor Scale, Head Tilt, Cervical Range of Motion

Brief summary

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.

Detailed description

Congenital muscular torticollis(CMT) is a musculoskeletal condition characterized by unilateral shortening or tightness of the sternocleidomastoid muscle, resulting in head tilt, limited cervical range of motion, and postural asymmetry. Infants with CMT frequently demonstrate asymmetrical weight bearing patterns. Early physical therapy interventions, including stretching exercises, are widely used to improve cervical mobility and reduce postural asymmetry. However, interventions specifically targeting symmetrical weight bearing and postural control may provide additional benefits by promoting more symmetrical development in functional activities. Weight shift training encourages active transfer of body weight while maintaining postural stability. Improved weight bearing symmetry may contribute to more efficient motor development and functional movement patterns in infants with CMT. The purpose of this study is to determine whether the addition of weight shift training to conventional stretching exercises improves upper extremity weight-bearing symmetry, motor development, head posture, and cervical mobility in infants with congenital muscular torticollis. The findings of this study may provide evidence for the clinical effectiveness of incorporating weight shift training into rehabilitation programs for infants with CMT.

Interventions

OTHERWeight Shift Training

Weight shift training will be performed in prone and sitting positions to facilitate symmetrical weight bearing and postural control in infants with congenital muscular torticollis.

OTHERStretching Exercise

Stretching exercises will be performed to improve head tilt and cervical range of motion in infants with congenital muscular torticollis.

Sponsors

Sahmyook University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Participants will be randomly assigned to either the experimental group or the control group.

Eligibility

Sex/Gender
ALL
Age
6 Months to 12 Months
Healthy volunteers
No

Inclusion criteria

* 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

Exclusion criteria

* 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

Design outcomes

Primary

MeasureTime frameDescription
Symmetry of Upper Extremity Weight Bearing in the Prone PositionBaseline and Week 8Symmetry 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.

Secondary

MeasureTime frameDescription
Head tiltBaseline and Week 8Head tilt will be measured to evaluate postural asymmetry associated with congenital muscular torticollis.
Cervical rotation passive range of motionBaseline and Week 8Cervical rotation passive range of motion will be measured using standard clinical assessment procedures.
Motor Development Assessed by the Alberta Infant Motor ScaleBaseline and Week 8Motor 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.

Countries

South Korea

Contacts

CONTACTjunyeong Heo, PT
hamstering99@naver.com+82-10-4206-3290
PRINCIPAL_INVESTIGATORjunyeong Heo, PT

Sahmyook University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 27, 2026