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Published on: June 1, 2015
Early spontaneous leg movements in infants born with and without myelomeningocele
Nicholas Rademacher1, David P Black, Beverly D Ulrich
1Division of Kinesiology, University of Michigan, Ann Arbor, MI 48109-2214, USA.
Insights
Infants with myelomeningocele (MMC) show less leg movement activity compared to typically developing infants. Further research is needed to explore therapeutic interventions for improving spontaneous leg movement and control in babies with MMC.
Area of Science:
- Developmental Pediatrics
- Pediatric Neurology
- Movement Science
Background:
- Myelomeningocele (MMC) is a complex congenital condition affecting neurological and motor development.
- Understanding early motor patterns in infants with MMC is crucial for timely intervention.
- Spontaneous leg movements provide insights into neuromuscular control and development.
Purpose of the Study:
- To quantitatively and qualitatively compare spontaneous leg movements in infants with myelomeningocele (MMC) versus typically developing (TD) infants.
- To analyze movement frequency, duration, velocity, jerk, and acceleration peaks in both groups.
- To identify differences in motor activity indicative of developmental variations.
Main Methods:
- A cohort of 9 infants with MMC and 12 TD infants were observed.
- Leg movements were recorded using a 6-camera system during 5-minute supine sessions at 1, 3, and 6 months of age.
- Movement parameters including displacement, velocity, duration, and acceleration peaks were analyzed.
Main Results:
- Infants with MMC exhibited leg movements of shorter duration and fewer acceleration peaks compared to TD infants.
- TD infants displayed asymmetrical interlimb movement frequencies, a pattern also observed in the lower symmetrical frequencies of infants with MMC.
- These findings suggest a reduction in overall spontaneous motor activity in infants with MMC.
Conclusions:
- Infants diagnosed with myelomeningocele demonstrate significantly depressed spontaneous leg movement activity.
- The observed motor differences highlight the impact of MMC on early neuromuscular development.
- Further investigation is warranted to determine the efficacy of therapeutic interventions in enhancing spontaneous activity and leg control in infants with MMC.
Purpose:
To compare quantity and quality of spontaneous leg movements during early infancy in babies with myelomeningocele (MMC) and babies with typical development (TD).
Methods:
Nine infants with MMC and 12 with TD moved spontaneously while supine for 5 minutes at ages 1, 3, and 6 months. We used a 6-camera system to monitor leg movements. Resultant leg displacement and velocity were used to determine movement frequency and, for each movement, duration, distance, peak velocity, jerk, and number of acceleration peaks.
Results:
Movements of infants with MMC were shorter in duration with fewer acceleration peaks than their peers. Asymmetrical interlimb frequencies in infants with TD resulted in one leg moving more than the other, which was similar to the lower symmetrical interlimb frequencies of infants with MMC.
Conclusions:
Infants with MMC show depressed movement activity. Further research is needed to determine if therapy can facilitate spontaneous activity and leg control.
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