FMS Scores Change With Performers' Knowledge of the Grading Criteria—Are General Whole-Body Movement Screens Capturing "Dysfunction"?. Issue 11 (November 2015)

• Record Type: Journal Article
• Authors: Frost, David M.; Beach, Tyson A.C.; Callaghan, Jack P.; McGill, Stuart M.
• Is Part Of: Journal of strength and conditioning research. Volume 29:Issue 11(2015)
• Publication Date: 2015-11
• Subjects: firefighter -- injury -- prevention -- prediction -- risk; Physical education and training -- Periodicals; Weight training -- Physiological aspects -- Periodicals; Physical fitness -- Periodicals; 613.7
• DOI: 10.1097/JSC.0000000000000211
• Languages: English
• ISSNs: 1064-8011

Abstract

Abstract : Abstract: Frost, DM, Beach, TAC, Callaghan, JP, and McGill, SM. FMS scores change with performers' knowledge of the grading criteria—Are general whole-body movement screens capturing "dysfunction"? J Strength Cond Res 29(11): 3037–3044, 2015—Deficits in joint mobility and stability could certainly impact individuals' Functional Movement Screen (FMS) scores; however, it is also plausible that the movement patterns observed are influenced by the performers' knowledge of the grading criteria. Twenty-one firefighters volunteered to participate, and their FMS scores were graded before and immediately after receiving knowledge of the movement patterns required to achieve a perfect score on the FMS. Standardized verbal instructions were used to administer both screens, and the participants were not provided with any coaching or feedback. Time-synchronized sagittal and frontal plane videos were used to grade the FMS. The firefighters significantly ( p < 0.001) improved their FMS scores from 14.1 (1.8) to 16.7 (1.9) when provided with knowledge pertaining to the specific grading criteria. Significant improvements ( p < 0.05) were also noted in the deep squat (1.4 [0.7]–2.0 [0.6]), hurdle step (2.1 [0.4]–2.4 [0.5]), in-line lunge (2.1 [0.4]–2.7 [0.5]), and shoulder mobility (1.8 [0.8]–2.4 [0.7]) tests. Because a knowledge of a task's grading criteria can alter a general whole-body movement screen score, FMS or otherwise, observed changes may not solely reflect "dysfunction." The instant that individuals are provided with coaching and feedback regarding their performance on a particular task, the task may lose its utility to evaluate the transfer of training or predict musculoskeletal injury risk.