The Functional Movement Screen™ (FMS™) is a clinical instrument designed to use movement behaviors to screen individuals for injury risk. Current rater certification programs focus on extensive, individualized training, which may not be appropriate in all screening contexts.
The purpose of this research was to examine the effect of a two-hour FMSTM training seminar on measures of reliability between previously untrained scorers.
Repeated measures, descriptive cohort study.
Four novice raters completed a two-hour training course administered by an FMS™-certified, licensed physical therapist. The novices and the instructor then scored a group of 16 individuals on the seven FMS™ component tests on two separate occasions. Interrater reliability was assessed for FMS™ component scores using Fleiss’ kappa and Krippendorff’s α. Interrater reliability for the FMS™ composite score was assessed using a two-way ICC for agreement (a priori significance level=0.05).
Reliability ranged from fair to almost perfect (kappa) for Deep Squat (0.61 Day 1, 0.79 Day 2), Shoulder Mobility (0.90 Day 1, 1.00 Day 2), Active Straight Leg Raise (0.53 Day 1, 0.69 Day 2), and Trunk Stability Push Up (0.48 Day 1, 0.49 Day 2) on both testing occurrences (p
Findings suggest that a brief training seminar may be sufficient to ensure acceptable reliability in many, but not all, of the FMS™ component tests and composite score.
Levels of Evidence
Harper BA, Glass SM. Item-level and Composite-level Interrater Reliability of Functional Movement ScreenTM Scores Following Condensed Training in Novice Raters. IJSPT. 2021;16(4):1016-1024. https://doi.org/10.26603/001c.25793
Table 1. FMS™ item score tallies by rater for each day. Raters R1-R4 are the novice raters. R5 is the expert rater. DS = Deep Squat; HS = Hurdle Step; ILL = Inline Lunge; SM = Shoulder Mobility; ASLR = Active Straight Leg Raise; TSPU = Trunk Stability Push Up; RS = Rotary Stability.
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Table 2. Interrater reliability statistics for Day 1 FMS™ item scores. DS = Deep Squat; HS = Hurdle Step; ILL = Inline Lunge; SM = Shoulder Mobility; ASLR = Active Straight Leg Raise; TSPU = Trunk Stability Push Up; RS = Rotary Stability.
table-3-interrater-reliability-statistics-for-day-2-fms-item-scores.html (5 kB)
Table 3. Interrater reliability statistics for Day 2 FMS™ item scores. DS = Deep Squat; HS = Hurdle Step; ILL = Inline Lunge; SM = Shoulder Mobility; ASLR = Active Straight Leg Raise; TSPU = Trunk Stability Push Up; RS = Rotary Stability.
table-4-interrater-reliability-for-day-1-and-day2.html (1 kB)
Table 4. Interrater reliability for Day 1 and Day2. Intraclass correlation coefficients (two-way models for agreement) calculated separately for Day 1 and Day 2 FMS™ composite scores.
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