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Changes in balance strategy in the third trimester
Kaname Takeda1, Kiyomi Shimizu2, Masumi Imura3
1Division of Physical Therapy, Department of Rehabilitation Sciences, Faculty of Allied Health Sciences, Kansai University of Welfare Sciences, Japan.
Journal of Physical Therapy Science
|July 17, 2015
Summary
Pregnant women exhibit reduced forward reach distance and rely more on ankle strategies for balance. This shift from hip to ankle joint dominance occurs as pregnancy progresses, impacting their overall balance control.
Area of Science:
- Biomechanics
- Human Movement Science
- Pregnancy Studies
Background:
- Balance control is crucial for daily activities.
- Pregnancy-induced physiological changes may affect balance strategies.
- Understanding kinematic changes in balance during pregnancy is important for fall prevention.
Purpose of the Study:
- To investigate kinematic changes in balance strategies during pregnancy.
- To compare balance performance between pregnant and non-pregnant women.
- To analyze the evolution of balance strategies across pregnancy trimesters.
Main Methods:
- Utilized a 3D motion analysis system and force plates.
- Measured kinematics during the functional reach test (FRT).
- Compared parameters between eight pregnant and eight non-pregnant women across trimesters.
Main Results:
- Pregnant women demonstrated a shorter FRT compared to non-pregnant individuals.
- Reduced hip joint extension moments were observed in pregnant women.
- Increased ankle plantar flexion moments were noted in the third trimester of pregnancy.
Conclusions:
- Forward reach capacity is diminished during pregnancy.
- Balance maintenance shifts towards an ankle joint strategy over a hip joint strategy.
- Kinematic analysis reveals adaptive changes in balance control throughout pregnancy.
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