Injury history, sex, and performance on the functional movement screen and Y balance test

Department

Athletic Training

Document Type

Article

Publication Source

Journal of Athletic Training

Publication Date

2015-01-01

Volume

50

Issue

5

First Page

475

Last Page

485

Abstract

© by the National Athletic Trainers' Association, Inc. Context: Research is limited regarding the effects of injury or surgery history and sex on the Functional Movement Screen (FMS) and Y Balance Test (YBT). Objective: To determine if injury or surgery history or sex affected results on the FMS and YBT. Design: Cross-sectional study. Setting: Athletic training facilities. Patients or Other Participants: A total of 200 National Collegiate Athletic Association Division I female (n = 92; age = 20.0 ± 1.4 years, body mass index = 22.8 ± 3.1 kg/m2) and male (n = 108; age = 20.0 ± 1.5 years, body mass index = 27.0 ± 4.6 kg/m2) athletes were screened; 170 completed the FMS, and 190 completed the YBT. Intervention(s): A self-reported questionnaire identified injury or surgery history and sex. The FMS assessed movement during the patterns of deep squat, hurdle step, in-line lunge, shoulder mobility, impingement-clearing test, straight-leg raise, trunk stability push-up, press-up clearing test, rotary stability, and posterior-rocking clearing test. The YBT assessed balance while participants reached in anterior, posteromedial, and posterolateral directions. Main Outcome Measure(s): The FMS composite score (CS; range, 0-21) and movement pattern score (range, 0-3), the YBT CS (% lower extremity length), and YBT anterior, posteromedial, and posterolateral asymmetry (difference between limbs in centimeters). Independent-samples t tests established differences in mean FMS CS, YBT CS, and YBT asymmetry. The Mann-Whitney U test identified differences in FMS movement patterns. Results: We found lower overall FMS CSs for the following injuries or surgeries: hip (injured = 12.7 ± 3.1, uninjured = 14.4 ± 2.3; P = .005), elbow (injured = 12.1 ± 2.8, uninjured = 14.3 ±2.4; P = .02), and hand (injured = 12.3 ± 2.9, uninjured = 14.3 ±2.3; P = .006) injuries and shoulder surgery (surgery = 12.0 ±1.0, no surgery = 14.3 ± 2.4; P < .001). We observed worse FMS movement pattern performance for knee surgery (rotary stability: P = .03), hip injury (deep squat and hurdle: P < .042 for both), hip surgery (hurdle and lunge: P < .01 for both), shoulder injury (shoulder and hand injury: P < .02 for both), and shoulder surgery (shoulder: P < .02). We found better FMS movement pattern performance for trunk/back injury (deep squat: P = .02) and ankle injury (lunge: P = .01). Female athletes performed worse in FMS movement patterns for trunk (P < .001) and rotary (P = .01) stability but better in the lunge (P = .008), shoulder mobility (P < .001), and straight-leg raise (P < .001). Anterior asymmetry was greater for male athletes (P = .02). Conclusions: Injury history and sex affected FMS and YBT performance. Researchers should consider adjusting for confounders.

Keywords

Athletic injuries, Sex differences, Surgery history

DOI

10.4085/1062-6050-49.6.02

https://doi.org/10.4085/1062-6050-49.6.02

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