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Author Spotlight: Enhancing the Offspring Health in Rats with Maternal Exercise During Pregnancy
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Maternal Exercise Rescues Fetal Akinesia-Impaired Joint and Bone Development.

Christopher J Panebianco1,2,3, Yuming Huang4, Nidal Khatib4,5

  • 1Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology
|December 13, 2025
PubMed
Summary
This summary is machine-generated.

Maternal exercise significantly improves fetal skeletal development, even in cases of impaired fetal movement. This research highlights exercise as a potential therapeutic strategy for skeletal defects.

Keywords:
bioreactorbonedevelopmentfetal akinesiajointsmaternal exercisemechanobiologyplacentasplotch‐delayed mice

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Area of Science:

  • Developmental biology
  • Mechanobiology
  • Exercise physiology

Background:

  • Fetal movements are crucial for skeletal development, and impaired movement can lead to defects.
  • Current interventions for fetal skeletal conditions are limited.

Purpose of the Study:

  • To investigate the role of maternal exercise in regulating fetal skeletal development.
  • To explore maternal exercise as a potential intervention for skeletal defects caused by impaired fetal movement.

Main Methods:

  • Maternal wheel running exercise was performed in wild-type and Splotch-delayed (Spd) mice models.
  • Fetal skeletal development, joint morphogenesis, and bone development were assessed.
  • Bioreactor mechanical stimulation of explanted limbs was used to isolate mechanical effects.

Main Results:

  • Maternal exercise stimulated joint and bone development in wild-type fetuses.
  • In Spd mice with fetal akinesia, maternal exercise rescued skeletal development and prevented bone resorption.
  • Mechanical stimulation of explanted limbs mimicked the effects of maternal exercise on joint morphogenesis.

Conclusions:

  • Maternal exercise is a key regulator of fetal skeletal development.
  • This study provides a model for investigating skeletal developmental mechanobiology.
  • Maternal exercise holds therapeutic potential for skeletal conditions arising from impaired fetal movement.