Force Plate Measurement
Force Plate Measurement - Related Videos
11:31
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Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The purpose of this experiment is to demonstrate forces on bodies as the result of changes in the linear momentum of the flow around them using a control volume formulation [1, 2]. The control volume analysis focuses on the macroscopic effect of flow on engineering systems, rather than the detailed description that could be achieved with a differential...
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04:56
Real-Time Force Measurement Between Emulsion Droplets During Enzymatic Breakdown
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FAQs
Calibrated sensors register the ground-reaction forces and moments produced at the contact surface. These measurements are combined to calculate the center of pressure, which represents where the net interaction with the surface is acting at a given time. Tracking its position over time provides a quantitative description of how a person adjusts posture or shifts weight.
Moments capture the turning effects generated when a person interacts with the surface, adding information beyond the magnitude of ground-reaction forces alone. Their measurement helps characterize the mechanical demands associated with maintaining posture and producing movement. In neuroscience experiments, this contributes to a more complete assessment of motor coordination and postural control.
Changes in the center of pressure over time reflect how a participant regulates balance while standing or shifting weight. Comparing these patterns across tasks or participant groups can reveal differences in postural control without relying only on visual observation. This is especially relevant when examining motor behavior associated with sensory or neurological impairment.
The technique supplies objective force, moment, and center-of-pressure data during controlled standing, weight-shifting, or walking activities. Researchers can examine how these measurements change when postural control or motor coordination is affected. Such comparisons help characterize disease-related changes in balance and movement and provide quantitative evidence for neuroscience investigations.
A typical workflow begins with a calibrated force plate, followed by a participant performing a selected activity such as standing, shifting weight, or walking. The system records forces and moments generated at the surface, after which center-of-pressure changes can be calculated over time. The resulting measurements are then interpreted in relation to balance, posture, or movement.
Force plate measurement can be applied during quiet standing, deliberate weight shifts, and walking, allowing investigators to study different aspects of motor behavior. Standing emphasizes postural control, weight shifting probes coordinated movement, and walking extends the assessment to gait. Selecting among these behaviors lets researchers match the measurement to the neurological or rehabilitation question.
Because it produces objective measurements of balance and movement, the method can help researchers examine whether postural control, coordination, or gait changes after rehabilitation. Repeated assessments can describe movement-related outcomes in quantitative terms. It is also useful for studying disease-related changes, linking observed functional differences to measurable force, moment, and center-of-pressure behavior.