The assessment of center of mass and center of pressure during quiet stance: Current applications and future directions

This perspective article provides a brief review of our understanding of how center of pressure (CoP) and center of mass (CoM) are traditionally utilized to measure quiet standing and how technological advancements are allowing for measurements to be derived outside the confines of a laboratory sett...

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Bibliographic Details
Published in:Journal of biomechanics 2021-06, Vol.123, p.110485-110485, Article 110485
Main Authors: Richmond, Sutton B., Fling, Brett W., Lee, Hyunglae, Peterson, Daniel S.
Format: Article
Language:English
Subjects:
Algorithms
Balance
Center of mass
Center of pressure
Dimensional stability
Inertial monitoring units
Innovations
Kinematics
Laboratories
Motion capture
Multidimensional methods
Nervous system
Portable force plate
Postural control
Posture
Questions
Sensors
Sheep
Stability analysis
Technological change
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Summary:This perspective article provides a brief review of our understanding of how center of pressure (CoP) and center of mass (CoM) are traditionally utilized to measure quiet standing and how technological advancements are allowing for measurements to be derived outside the confines of a laboratory setting. Furthermore, this viewpoint provides descriptions of what CoP and CoM outcomes may reflect, a discussion of recent developments in selected balance outcomes, the importance of measuring instantaneous balance outcomes, and directions for future questions/research. Considering the enormous number and cost of falls annually, conclusions drawn from this perspective underscore the need for more cohesive efforts to advance our understanding of balance performance. As we refine the technology and algorithms used to portably assess postural stability, the question of which measurement (i.e. CoP or CoM) to utilize seems to be highly dependent on the question being asked. Further, the complexity of the question appears to span multiple disciplines and cultivate exploration of the intrinsic mechanisms of stability. Recently developed multi-dimensional methods for assessing balance performance may provide additional insight into balance, improving our ability to predict balance impairments and falls outside the laboratory and in the clinic. However, additional work will be necessary to understand the clinical significance and predictive capacity of these outcomes in various fall-prone populations.
ISSN:0021-9290
1873-2380
DOI:10.1016/j.jbiomech.2021.110485