Poster Session

A Descriptive Study of Men’s Lacrosse Head Impacts Based on Field Positioning

Location

Memorial Ballroom, Hall Campus Center

Access Type

Campus Access Only

Entry Number

8

Start Date

4-10-2019 12:00 PM

End Date

4-10-2019 1:15 PM

College

College of Health Sciences

Department

Athletic Training

Abstract

Context: Head impacts have become an area of prominent research. Many studies have investigated head impacts in football with little research regarding men’s lacrosse players.

Objective: To investigate head impacts of men’s lacrosse players based on field positioning.

Design: Descriptive Epidemiology

Setting: Collegiate Lacrosse Fields Participants: 23 NCAA III men’s lacrosse athletes (age=20.70±1.20 years, height=175.96±34.27 cm, weight=84.04±6.25 kg)

Interventions: Participants wore xPatch sensors during practices and games with video confirmation.

Main Outcome Measures: We determined frequency differences by calculating incidence rates (IRs) and incidence rate ratios (IRRs) with corresponding 95% confidence intervals (CI95). We determined the effect of field location on head impact magnitudes of player linear acceleration (PLA) and player rotational acceleration (PRA).

Results: We found an overall IR of 2.22 (CI95 1.98-2.49). The midfield center had the highest IR of 480.59 (CI95 439.28-521.90). The defensive crease had the lowest IR of 10.17 (CI95 4.16-16.17; IRR=47.27, CI95=26.02-85.89). Field location significantly altered the combined dependent variables (F20,2140 =2.47, P< .01, �2=.02). Field location altered linear acceleration (F1071,1071 =1.94, P=.037, �2=.02) but not rotational acceleration (F1071,1071 =1.45, P=.151, �2=.01, 1-�=.74). Post-hoc test revealed that head impacts received in the middle defensive zone created higher PLA (26.20±2.20) compared to the midfield center (18.17±.54, P=.022).

Conclusion: Players engaging in activity in the midfield center are at a higher risk of sustaining head impacts. Differences found within PLA between midfield center and defensive middle may be because of the manner of play occurring in these two areas of the field.

Faculty Mentor(s)

Dr. Thomas Bowman
Dr. Debbie Bradney

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Apr 10th, 12:00 PM Apr 10th, 1:15 PM

A Descriptive Study of Men’s Lacrosse Head Impacts Based on Field Positioning

Memorial Ballroom, Hall Campus Center

Context: Head impacts have become an area of prominent research. Many studies have investigated head impacts in football with little research regarding men’s lacrosse players.

Objective: To investigate head impacts of men’s lacrosse players based on field positioning.

Design: Descriptive Epidemiology

Setting: Collegiate Lacrosse Fields Participants: 23 NCAA III men’s lacrosse athletes (age=20.70±1.20 years, height=175.96±34.27 cm, weight=84.04±6.25 kg)

Interventions: Participants wore xPatch sensors during practices and games with video confirmation.

Main Outcome Measures: We determined frequency differences by calculating incidence rates (IRs) and incidence rate ratios (IRRs) with corresponding 95% confidence intervals (CI95). We determined the effect of field location on head impact magnitudes of player linear acceleration (PLA) and player rotational acceleration (PRA).

Results: We found an overall IR of 2.22 (CI95 1.98-2.49). The midfield center had the highest IR of 480.59 (CI95 439.28-521.90). The defensive crease had the lowest IR of 10.17 (CI95 4.16-16.17; IRR=47.27, CI95=26.02-85.89). Field location significantly altered the combined dependent variables (F20,2140 =2.47, P< .01, �2=.02). Field location altered linear acceleration (F1071,1071 =1.94, P=.037, �2=.02) but not rotational acceleration (F1071,1071 =1.45, P=.151, �2=.01, 1-�=.74). Post-hoc test revealed that head impacts received in the middle defensive zone created higher PLA (26.20±2.20) compared to the midfield center (18.17±.54, P=.022).

Conclusion: Players engaging in activity in the midfield center are at a higher risk of sustaining head impacts. Differences found within PLA between midfield center and defensive middle may be because of the manner of play occurring in these two areas of the field.