Evaluating inter- and intra-rater reliability in assessing upper limb compensatory movements post-stroke: creating a ground truth through video analysis?
2024

Assessing Movement Quality After Stroke

Sample size: 22 publication Evidence: moderate

Author Information

Author(s): Lena Sauerzopf, Celina G. Chavez Panduro, Andreas R. Luft, Benjamin Kühnis, Elena Gavagnin, Tim Unger, Christopher Easthope Awai, Josef G. Schönhammer, Jürgen Degenfellner, Martina R. Spiess

Primary Institution: ZHAW Zurich University of Applied Sciences

Hypothesis

Can therapists reliably assess compensatory movements in stroke patients using video analysis?

Conclusion

The study found moderate to excellent reliability in assessing specific movement phases, but wide credible intervals suggest results may not be replicable.

Supporting Evidence

  • Inter-rater reliability was good for reaching, drinking, and returning phases.
  • Intra-rater reliability was excellent for the drinking phase.
  • Wide credible intervals indicate uncertainty in reliability results.
  • Therapists had varying interpretations of compensation levels.
  • Video analysis may not capture all aspects of movement quality.

Takeaway

This study looked at how well therapists can judge movements of stroke patients by watching videos, and while they did well in some areas, there were big differences in their ratings.

Methodology

Therapists evaluated video-recorded performances of a standardized drinking task and rated compensatory movements using a continuous scale.

Potential Biases

Potential biases may arise from the subjective nature of visual assessments and the lack of defined criteria for compensation levels.

Limitations

The wide credible intervals indicate uncertainty in the reliability results, and the study's sample size may limit generalizability.

Participant Demographics

{"gender":{"female":2,"male":5},"age_mean":67.14,"age_sd":13.9,"more_affected_side":{"right":3,"left":3,"both":1}}

Statistical Information

Confidence Interval

0.31 to 1

Digital Object Identifier (DOI)

10.1186/s12984-024-01506-7

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