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Related Experiment Video

Updated: Jan 15, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
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Binning ensemble curves in vector coding analysis compounds information loss: Examples and recommendations.

C Dane Napoli1, Michael A Busa2, Richard E A van Emmerik1

  • 1Department of Kinesiology, University of Massachusetts Amherst, USA.

Journal of Biomechanics
|October 10, 2025
PubMed
Summary
This summary is machine-generated.

Binning pooled data in vector coding analysis preserves motion variability information, unlike binning the ensemble curve. Standardizing binning procedures is recommended for accurate coordination pattern characterization.

Keywords:
BinningCoordinationCoupling angleMovement variabilityVector coding

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Area of Science:

  • Biomechanics
  • Movement Analysis
  • Data Analysis Techniques

Background:

  • Vector coding quantifies relative motion using coupling angles.
  • Categorizing coupling angles (in-phase, anti-phase) is increasingly common.
  • The method of data binning (pooled data vs. ensemble curve) impacts results.

Purpose of the Study:

  • To highlight the effects of binning pooled data versus the ensemble curve in vector coding.
  • To demonstrate how binning choices influence the characterization of coordination patterns.
  • To provide recommendations for standardizing vector coding binning procedures.

Main Methods:

  • Conceptual and empirical examples illustrating binning effects.
  • Comparison of results from binning pooled coupling angle data.
  • Comparison of results from binning the ensemble (mean) coupling angle curve.

Main Results:

  • Binning pooled data retains information on within- and between-cycle variability.
  • Binning the ensemble curve can obscure crucial variability.
  • Mischaracterization of coordination patterns can occur when binning the ensemble curve.

Conclusions:

  • The choice of binning strategy significantly affects vector coding outcomes.
  • Binning pooled data is superior for preserving motion variability insights.
  • Standardized binning protocols are necessary for reliable vector coding analysis.