Title: Systematic review of the reliability and validity of clinically relevant movement assessment tools: Rubric and 2D video analysis of single-leg squats and step-down tasks
Name: Erin Lally
Primary Presenters: Erin Marie Lally
College of Health Sciences
Research Doctorate (PhD)
Faculty Sponsor(s): Jennifer Earl-Boehm, PhD, ATC, FNATA, Program Director, Master of Science in Athletic Training Program, University of Wisconsin-Milwaukee

Systematic review of the reliability and validity of clinically relevant movement assessment tools: Rubric and 2D video analysis of single-leg squats and step-down tasks

Lally EM, Ericksen HM, Earl-Boehm JE: University of Wisconsin Milwaukee

Context: Poor lower extremity (LE) biomechanics are predictive of increased risk of injury. Clinicians analyze the single-leg squat (SLS) and step-down (SD) with rubrics and 2D video assessments to identify these poor LE biomechanics. The evidence on measurement properties of movement assessment tools is not strongly outlined. Measurement properties must be established before movement assessment tools are recommended for clinical use. Therefore, the purpose of this study was to systematically review the current evidence on measurement properties of rubrics and 2D assessments used to analyze a SLS and SD. Methods: The search strategy was developed and refined in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. The electronic search was performed in PubMed, SportDiscus, and Web of Science databases from 2004 until January 2021. The COSMIN 4-phase procedure was used to complete this systematic review. These phases assess the methodological quality and statistical results of eligible studies and synthesize the overall evidence on measurement properties. Results: A total of 1,330 studies were retrieved from the database searches. Forty-four studies were included after screening for those that did not meet eligibility criteria. Knee frontal plane projection angle (kFPPA) has acceptable reliability and validity. The Chmielewski rubric (ChR) has unacceptable reliability. The remaining rubrics and 2D measurements synthesized have inconclusive or conflicting results regarding their reliability and validity. Discussion: kFPPA is recommended to analyze the SLS and SD as it is reliable and valid. The ChR is not recommended for analyzing the SLS and SD in the clinical setting as it is unreliable. Most movement assessment tools that yielded indeterminate results. Within the literature, standardized language, methods, and reporting of movement assessment tool reliability and validity is inconsistent. This review is the first we know of that proposed guidelines to remedy these inconsistencies. Word count: 295