Are Low-Demand Tasks Appropriate for Comprehensive Movement Pattern Evaluation and Injury Risk Prediction?

The Functional Movement Screen (FMS) is a screening instrument developed to identify basic movement dysfunctions that may increase musculoskeletal injury risk potential. To date there are no published normative values for the FMS in dancers; consequently, this study sought to establish those values in addition to identifying the prevalence and nature of movement dysfunction in collegiate dancers. The functional movement proficiency of 111 collegiate dancers was determined using the FMS, which provides three variables of interest: 1. FMS total score, 2. number of asymmetries (unequal performance of right and left sides), and 3. number of movement pattern dysfunctions. Total FMS scores ranged from 11 to 20 out of 21 possible points, with a mean of 16.42 (SD = 1.72). Forty-four percent of dancers presented with one or more asymmetries and 43% demonstrated one or more dysfunctional movement patterns. The active straight-leg raise was the most proficiently performed movement pattern, while the deep squat, hurdle step, and rotary stability were the least proficient. Functional Movement Screen outcome scores indicated that dysfunctional movement patterns and asymmetries exist in collegiate dancers. Additional research is needed to establish normative FMS scores for the different genres and levels of dance and establish the relationship between FMS scores and injury risk potential, and if that relationship is established, determine the efficacy of the FMS to develop intervention programs for injury prevention.

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A Study on the Key Performance Factors of Passenger Airbag and Injury Risk Prediction Technique Development

Transactions of Korean Society of Automotive Engineers ◽

10.7467/ksae.2013.21.5.130 ◽

2013 ◽

Vol 21 (5) ◽

pp. 130-135

Author(s):

Dongkyou Park

Keyword(s):

Risk Prediction ◽

Injury Risk ◽

Performance Factors ◽

Prediction Technique ◽

Passenger Airbag ◽

Technique Development

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Kinematic and Electromyographic Activity Changes during Back Squat with Submaximal and Maximal Loading

Applied Bionics and Biomechanics ◽

10.1155/2017/9084725 ◽

2017 ◽

Vol 2017 ◽

pp. 1-8 ◽

Cited By ~ 14

Author(s):

Hasan U. Yavuz ◽

Deniz Erdag

Keyword(s):

Repeated Measures ◽

Injury Risk ◽

Vastus Lateralis ◽

Knee Extensor ◽

Gluteus Maximus ◽

Movement Pattern ◽

Erector Spinae ◽

Electromyographic Activity ◽

Vastus Medialis ◽

Significant Difference

The aim of this study was to investigate the possible kinematic and muscular activity changes with maximal loading during squat maneuver. Fourteen healthy male individuals, who were experienced at performing squats, participated in this study. Each subject performed squats with 80%, 90%, and 100% of the previously established 1 repetition maximum (1RM). Electromyographic (EMG) activities were measured for the vastus lateralis, vastus medialis, rectus femoris, semitendinosus, biceps femoris, gluteus maximus, and erector spinae by using an 8-channel dual-mode portable EMG and physiological signal data acquisition system (Myomonitor IV, Delsys Inc., Boston, MA, USA). Kinematical data were analyzed by using saSuite 2D kinematical analysis program. Data were analyzed with repeated measures analysis of variance (p<0.05). Overall muscle activities increased with increasing loads, but significant increases were seen only for vastus medialis and gluteus maximus during 90% and 100% of 1RM compared to 80% while there was no significant difference between 90% and 100% for any muscle. The movement pattern in the hip joint changed with an increase in forward lean during maximal loading. Results may suggest that maximal loading during squat may not be necessary for focusing on knee extensor improvement and may increase the lumbar injury risk.

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