Case Report

Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report

Volume: 9 Number: 3 July 30, 2026

Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report

Abstract

Purpose: This case report aims to evaluate the early motor repertoire and selective motor control of an infant exposed to acute metabolic acidosis to determine their neurodevelopmental risk. Method: A 12-week-old male infant, previously hospitalized in the neonatal intensive care unit due to hypoactivity and metabolic acidosis on the third postnatal day, was referred for a physiotherapy assessment at three months of age. A neurodevelopmental evaluation was conducted using a four-minute video recording of the infant in an alert, unstimulated, supine position. The early motor repertoire was assessed via the Motor Optimality Score-Revised (MOS-R), and selective motor control was evaluated using the Baby Observational Selective Control Appraisal (BabyOSCAR). Findings: The infant achieved a MOS-R score of 13 and a total BabyOSCAR score of 19. These clinical scores collectively indicated that the infant was at a high risk for impaired neurodevelopment, suggesting that the history of acute metabolic acidosis may have disrupted early motor system organization and altered spontaneous movement quality. Conclusion: Combining early motor repertoire and selective motor control assessments in infants exposed to metabolic acidosis offers a valuable clinical approach for the early identification of neurodevelopmental risk, though larger longitudinal studies are needed to validate these findings.

Keywords

Acidosis, Metabolic, Child Development, Infant, Diseases, Motor Skill

Supporting Institution

N/A

Ethical Statement

This study was prepared as a case report. Ethical committee approval was not required. Informed consent was obtained from the parents.

Thanks

We would like to express our gratitude to Assoc. Prof. Dr. Halil Tuna Akar for his valuable support.

References

  1. Alkan, H., Kahraman, A., & Mutlu, A. (2021). Early spontaneous movements of infants with hypoxic-ischemic encephalopathy. Pediatric Physical Therapy, 33(1), 18-22. [CrossRef] [PubMed]
  2. Boscarino, G., Esposito, S., & Terrin, G. (2026). Administration of Sodium Bicarbonate in Critically Ill Newborns: A Systematic Review and Meta-Analysis. Journal of Personalized Medicine, 16(1), 26. [CrossRef] [PubMed]
  3. Bruggink, J. L. M., Van Spronsen, F. J., Wijnberg-Williams, B. J., & Bos, A. F. (2009). Pilot use of the early motor repertoire in infants with inborn errors of metabolism: outcomes in early and middle childhood. Early Human Development, 85(7), 461-465. [CrossRef] [PubMed]
  4. Crowle, C., Jackman, M., & Morgan, C. (2023). The general movements motor optimality score in high-risk infants: a systematic scoping review. Pediatric Physical Therapy, 35(1), 2-26. [CrossRef] [PubMed]
  5. Einspieler, C., Bos, A. F., Krieber-Tomantschger, M., Alvarado, E., Barbosa, V. M., Bertoncelli, N., & Marschik, P. B. (2019). Cerebral palsy: early markers of clinical phenotype and functional outcome. Journal of Clinical Medicine, 8(10), 1616. [CrossRef] [PubMed]
  6. Kahraman, A., Livanelioğlu, A., Kara, Ö. K., & Yurdakök, M. (2020). Are general movements at 3-5 months correlated and compatible with the Bayley-III at 1,5-2 years age?. The Turkish Journal of Pediatrics, 62(1), 89–93. [CrossRef] [PubMed]
  7. Kahraman, A., Mutlu, A., & Livanelioğlu, A. (2020). Assessment of motor repertoire in 3-to 5-month-old infants with obstetric brachial plexus lesion. Pediatric Physical Therapy, 32(2), 114-119. [CrossRef] [PubMed]
  8. Kahraman, A., Mutlu, A., & Livanelioğlu, A. (2024). General movements in spinal muscular atrophy type 1. Physiotherapy Theory and Practice, 40(6), 1249-1255. [CrossRef] [PubMed]
  9. Kahraman, A., & Porsnok, D. (2021). Reflection of the brain development of ınfants with cerebral palsy in their motor repertoire in the fidgety period: a pilot study. Hacettepe University Faculty of Health Sciences Journal, 8(1), 124-133. [CrossRef]
  10. Kraut, J. A., & Madias, N. E. (2012). Treatment of acute metabolic acidosis: a pathophysiologic approach. Nature Reviews Nephrology, 8(10), 589-601. [CrossRef] [PubMed]
APA
Kahraman, A., & Çankaya, Ö. (2026). Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report. International Journal of Disabilities Sports and Health Sciences, 9(3), 235-238. https://doi.org/10.33438/ijdshs.1932688
AMA
1.Kahraman A, Çankaya Ö. Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report. International Journal of Disabilities Sports &Health Sciences. 2026;9(3):235-238. doi:10.33438/ijdshs.1932688
Chicago
Kahraman, Aysu, and Özge Çankaya. 2026. “Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report”. International Journal of Disabilities Sports and Health Sciences 9 (3): 235-38. https://doi.org/10.33438/ijdshs.1932688.
EndNote
Kahraman A, Çankaya Ö (July 1, 2026) Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report. International Journal of Disabilities Sports and Health Sciences 9 3 235–238.
IEEE
[1]A. Kahraman and Ö. Çankaya, “Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report”, International Journal of Disabilities Sports &Health Sciences, vol. 9, no. 3, pp. 235–238, July 2026, doi: 10.33438/ijdshs.1932688.
ISNAD
Kahraman, Aysu - Çankaya, Özge. “Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report”. International Journal of Disabilities Sports and Health Sciences 9/3 (July 1, 2026): 235-238. https://doi.org/10.33438/ijdshs.1932688.
JAMA
1.Kahraman A, Çankaya Ö. Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report. International Journal of Disabilities Sports &Health Sciences. 2026;9:235–238.
MLA
Kahraman, Aysu, and Özge Çankaya. “Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report”. International Journal of Disabilities Sports and Health Sciences, vol. 9, no. 3, July 2026, pp. 235-8, doi:10.33438/ijdshs.1932688.
Vancouver
1.Aysu Kahraman, Özge Çankaya. Critical Components of Motor Development in an Infant Exposed to Acute Metabolic Acidosis: Early Motor Repertoire and Selective Motor Control in a Case Report. International Journal of Disabilities Sports &Health Sciences. 2026 Jul. 1;9(3):235-8. doi:10.33438/ijdshs.1932688