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Updated: Jun 10, 2026
Non-Invasive Modulation and Robotic Mapping of Motor Cortex in the Developing Brain
Published on: July 1, 2019
Effects of different early intervention strategies guided by GMOS, PDMS-2, or their combination on motor outcomes in
Suwei Ren1, Ping Gan2,3, Yanyan Cai3
1Department of Rehabilitation, Northern Jiangsu People's Hospital Affiliated to Yangzhou University (Northern Jiangsu People's Hospital), Yangzhou, China.
Insights
Early intervention using both General Movement Optimality Score (GMOS) and Peabody Developmental Motor Scales-2 (PDMS-2) significantly improved motor skills in preterm infants with periventricular-intraventricular hemorrhage (PIVH). This combined approach offers superior outcomes by 12 months corrected age.
Area of Science:
- Neonatal neurology
- Developmental pediatrics
- Rehabilitation medicine
Background:
- Periventricular-intraventricular hemorrhage (PIVH) is a major complication in preterm infants, leading to significant neurodevelopmental challenges.
- Early detection and intervention are crucial for optimizing motor outcomes in this high-risk population.
Purpose of the Study:
- To evaluate the efficacy of early intervention programs guided by the General Movement Optimality Score (GMOS) and the Peabody Developmental Motor Scales-2 (PDMS-2), individually or in combination, for preterm infants with PIVH.
- To compare these interventions against standard care in improving motor development.
Main Methods:
- A prospective, stratified, randomized controlled trial involving 75 preterm infants with PIVH.
- Infants were assigned to four groups: standard care, GMOS-guided intervention, PDMS-2-guided intervention, or a combined GMOS + PDMS-2 guided intervention.
- Motor outcomes (Fine Motor Quotient and Gross Motor Quotient) were assessed using the PDMS-2 at corrected ages of 6 and 12 months.
Main Results:
- No significant differences were noted at 3 months corrected age.
- At 6 months corrected age, the combined GMOS + PDMS-2 group showed a significantly higher Fine Motor Quotient (FMQ) compared to the control group.
- By 12 months corrected age, the combined intervention group demonstrated significantly superior FMQ and Gross Motor Quotient (GMQ) compared to both the control and GMOS-only groups, with large effect sizes.
Conclusions:
- A combined early intervention strategy guided by both GMOS and PDMS-2 leads to significantly better motor outcomes at 12 months corrected age in preterm infants with mild PIVH.
- This integrated approach shows promise as a model for enhancing early motor development in this vulnerable population.
Objective:
Periventricular-intraventricular hemorrhage (PIVH) is a common and serious complication in preterm infants, significantly increasing the risk of adverse neurodevelopmental outcomes. This study aimed to investigate whether early intervention programs guided by the General Movement Optimality Score (GMOS), the Peabody Developmental Motor Scales-2 (PDMS-2), or their combination, are associated with superior motor development in preterm infants with PIVH compared to standard care.
Methods:
In this prospective, stratified, randomized controlled trial, 103 preterm infants (gestational age < 37 weeks) with PIVH were screened. After applying the inclusion and exclusion criteria, 75 infants were enrolled, stratified by hemorrhage severity, and randomly allocated to one of four intervention groups: a Control group receiving standard early intervention; a GMOS group receiving standard intervention plus GMOS-guided therapy; a PDMS-2 group receiving standard intervention plus PDMS-2-guided therapy; and a GMOS + PDMS-2 group receiving standard intervention plus therapy guided by both tools. The primary outcomes, Fine Motor Quotient (FMQ) and Gross Motor Quotient (GMQ), were assessed using the PDMS-2 at corrected age (CA) 6 and 12 months. GMOS and general movements (GMs) were also evaluated at CA 1 and 3 months.
Results:
The four groups were comparable at baseline regarding key demographic and perinatal factors, major neonatal morbidities, clinical course, and initial neuromotor assessment scores (all p > 0.05). While no significant differences were observed at CA 3 months, the GMOS + PDMS-2 group demonstrated a significantly higher FMQ than the Control group at CA 6 months (median difference: 7.5 points, p = 0.006). By CA 12 months, significant differences emerged among the groups (p < 0.001 for both FMQ and GMQ), with large effect sizes (η2 > 0.21). The GMOS + PDMS-2 group significantly outperformed both the Control group (FMQ median difference: 11.5 points; GMQ: 9.0 points; p < 0.001) and the GMOS-only group (FMQ: 9.0 points; GMQ: 7.0 points; p < 0.001).
Conclusion:
A combined early intervention strategy, dynamically guided by both GMOS and PDMS-2, is associated with significantly superior motor outcomes at 12 months CA in preterm infants with mild PIVH compared to standard care or interventions guided by either tool alone, suggesting that this combined approach may represent a promising model for optimizing early motor outcomes at 12 months CA in this high-risk population.
