Associations Between Functional and Isolated Performance Measures in College Women’s Soccer Players

2017 ◽  
Vol 26 (5) ◽  
pp. 376-385 ◽  
Author(s):  
Ryan S. McCann ◽  
Kyle B. Kosik ◽  
Masafumi Terada ◽  
Megan Q. Beard ◽  
Gretchen E. Buskirk ◽  
...  
Keyword(s):  
Data Collection ◽  
Lower Extremity ◽  
Athletic Training ◽  
Performance Measures ◽  
Functional Performance ◽  
External Rotation ◽  
Soccer Players ◽  
Hip Strength ◽  
Data Collection And Analysis ◽  
Women's Soccer

Context:The Star Excursion Balance Test (SEBT) and Functional Movement Screen (FMS) are functional performance measures capable of predicting lower-extremity injury risk. While suboptimal SEBT and FMS performances are influenced by multiple factors, the contribution of hip strength and flexibility to these tests is mostly unknown. Examination of hip strength and flexibility influences on the SEBT and FMS may direct clinicians to better methods of correcting functional deficits.Objective:Determine the relationships of isometric hip strength and hip passive range of motion (PROM) with functional performance measures.Design:Cross-sectional.Setting:Athletic training facility.Participants:43 NCAA Division I women’s soccer players (19.65 ± 1.12 y; 166.93 ± 3.84 cm; 60.99 ± 4.31 kg) volunteered.Data Collection and Analysis:All participants were tested bilaterally in the SEBT; the deep squat, in-line lunge, hurdle step, and straight leg raise, comprising a lower-extremity FMS (FMS-LE); hip internal and external rotation PROM; and isometric hip extension strength (HEXT). The mean of the 3 averaged, normalized SEBT scores was used as a composite score. Pearson product moment correlations assessed relationships of SEBT and FMS-LE scores with PROM and HEXT. Significance was set a priori at P < .05.Results:Pearson correlations revealed anterior (ANT) SEBT scores had a low negative association with HEXT (r = –0.33,P = .004) and a low positive association with hip internal rotation PROM (PROM-IR) (r = .43,P = .003). All other correlations were negligible.Conclusions:Flexibility training aimed at PROM-IR may contribute to improved ANT scores. Targeting HEXT and hip external rotation PROM are likely not preferred means of correcting deficits in SEBT and FMS-LE performance.

Landing Kinematics and Isometric Hip Strength of Individuals With Chronic Ankle Instability

2019 ◽  
Vol 40 (8) ◽  
pp. 969-977 ◽  
Author(s):  
Ryan S. McCann ◽  
Masafumi Terada ◽  
Kyle B. Kosik ◽  
Phillip A. Gribble
Keyword(s):  
Lower Extremity ◽  
Ankle Instability ◽  
External Rotation ◽  
Peak Torque ◽  
Chronic Ankle Instability ◽  
Initial Contact ◽  
Level Of Evidence ◽  
Hip Strength ◽  
Hip Kinematics ◽  
Rotation Strength

Background: Chronic ankle instability (CAI) is associated with hip strength deficits and altered movement in the lower extremity. However, it remains unclear how hip strength deficits contribute to lateral ankle sprain (LAS) mechanisms. We aimed to compare lower extremity landing kinematics and isometric hip strength between individuals with and without CAI and examine associations between hip kinematics and strength. Methods: Seventy-six individuals completed 5 single-leg landings, during which we collected three-dimensional ankle, knee, and hip kinematics from 200 milliseconds pre–initial contact to 50 milliseconds post–initial contact. We calculated average peak torque (Nm/kg) from 3 trials of isometric hip extension, abduction, and external rotation strength testing. One-way analyses of variance assessed group differences (CAI, LAS coper, and control) in hip strength and kinematics. Pearson product moment correlations assessed associations between hip kinematics and strength. We adjusted the kinematic group comparisons and correlation analyses for multiple comparisons using the Benjamini-Hochberg method. Results: The CAI group exhibited less hip abduction during landing than LAS copers and controls. The CAI group had lower hip external rotation strength than LAS copers ( P = .04, d = 0.62 [0.05, 1.17]) and controls ( P < .01, d = 0.87 [0.28, 1.43]). Effect sizes suggest that the CAI group had deficits in EXT compared with controls ( d = 0.63 [0.06, 1.19]). Hip strength was not associated with hip landing kinematics for any group. Conclusion: Altered landing mechanics displayed by the CAI group may promote mechanisms of LAS, but they are not associated with isometric hip strength. However, hip strength deficits may negatively impact other functional tasks, and they should still be considered during rehabilitation. Level of Evidence: Level III, case-control study.

Prediction of Lower Extremity Injury in Collegiate Women’s Soccer Players

2016 ◽  
Vol 48 ◽  
pp. 37
Author(s):  
Ryan S. McCann ◽  
Kyle B. Kosik ◽  
Masafumi Terada ◽  
Megan Q. Beard ◽  
Gretchen E. Buskirk ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Soccer Players ◽  
Lower Extremity Injury ◽  
Extremity Injury ◽  
Women's Soccer

scholarly journals A Compound Hop Index for Assessing Soccer Players’ Performance

2022 ◽  
Vol 11 (1) ◽  
pp. 255
Author(s):  
Łukasz Oleksy ◽  
Aleksandra Królikowska ◽  
Anna Mika ◽  
Maciej Kuchciak ◽  
Daniel Szymczyk ◽  
...  
Keyword(s):  
Performance Measures ◽  
Functional Performance ◽  
Body Height ◽  
Test Battery ◽  
Soccer Players ◽  
Hop Tests ◽  
Hop Test ◽  
Z Scores ◽  
Single Score ◽  
Soccer Team

Athletes regularly have to pass a series of tests, among which one of the most frequently used functional performance measures are single-leg hop tests. As the collected individual results of tests constitute a large amount of data, strategies to decrease the amount of data without reducing the number of performed tests are being searched for. Therefore, the study aimed to present an effective method to reduce the hop-test battery data to a single score, namely, the Compound Hop Index (CHI) in the example of a soccer team. A male, first-league soccer team performed a battery of commonly used single-leg hop tests, including single hop and triple hop for distance tests and the six-meter timed hop test. Gathered data, including Limb Symmetry Indexes of the three tests, normalized to body height for the single- and triple-hop-tests distance separately for right and left legs, and the time of the six-meter timed hop test separately for right and left legs were standardized to z-scores. Consecutively, the z-scores were averaged and formed CHI. The developed CHI represents a novel score derived from the average of z-scores that significantly reduces, clarifies, and organizes the hop performance-measures data.

Reliability of the Hand-Held Dynamometer During Hip Isometric Strength Testing Both With and Without a Stabilization Strap

2020 ◽  
Vol 25 (1) ◽  
pp. 37-42
Author(s):  
Megan Q. Beard ◽  
Samantha A. Boland ◽  
Phillip A. Gribble
Keyword(s):  
Lower Extremity ◽  
Clinical Setting ◽  
External Rotation ◽  
High Reliability ◽  
Isometric Strength ◽  
Strength Testing ◽  
Hip Strength ◽  
Lower Extremity Injuries ◽  
Hip Abduction ◽  
Extremity Injuries

Decreased hip strength is often present in patients with chronic overuse lower extremity injuries. The hand-held dynamometer (HHD) can be used in a clinical setting to quantify hip strength; however, reliability of the device remains unclear. The purpose of this study was to determine the interexaminer and intersession reliability of a HHD when measuring isometric hip abduction (HABD) and external rotation (HER) strength, both with and without a fixed strap. The HHD had good to high reliability regardless of examiner, session, or stabilization when measuring HABD (ICC = 0.885–0.977) and HER (ICC = 0.879–0.958) isometric strength. HHD is an appropriate instrument for measuring isometric hip strength.

scholarly journals Increased Lower Extremity Injury Risk Associated With Player Load and Distance in Collegiate Women’s Soccer

2021 ◽  
Vol 9 (10) ◽  
pp. 232596712110482
Author(s):  
Michelle Xiao ◽  
Jessica N. Nguyen ◽  
Calvin E. Hwang ◽  
Geoffrey D. Abrams
Keyword(s):  
Lower Extremity ◽  
Ncaa Division I ◽  
High Speed ◽  
Injury Risk ◽  
Division I ◽  
Soccer Players ◽  
Lower Extremity Injury ◽  
Extremity Injury ◽  
Total Distance ◽  
Women's Soccer

Background: There is limited research regarding the impact of workload on injury risk specific to women’s soccer. Wearable global positioning system (GPS) units can track workload metrics such as total distance traveled and player load during games and training sessions. These metrics can be useful in predicting injury risk. Purpose: To examine the relationship between injury risk and player workload as collected from wearable GPS units in National Collegiate Athletic Association (NCAA) Division I women’s soccer players. Study Design: Case-control study; Level of evidence, 3. Methods: Lower extremity injury incidence and GPS workload data (player load, total distance, and high-speed distance) for 65 NCAA Division I women’s soccer players were collected over 3 seasons. Accumulated 1-, 2-, 3-, and 4-week loads and acute-to-chronic workload ratios (ACWR) were classified into discrete ranges by z-scores. ACWR was calculated using rolling averages and exponentially weighted moving averages (EWMA) models. Binary logistic regression models were used to compare the 7:28 rolling average and EWMA ACWRs between injured and noninjured players for all GPS/accelerometer variables. The prior 1-, 2-, 3-, and 4-week accumulated loads for all GPS/accelerometer variables were compared between the injured and uninjured cohorts using 2-sample t tests. Results: There were a total of 53 lower extremity injuries that resulted in lost time recorded (5.76/1000 hours “on-legs” exposure time; 34 noncontact and 19 contact injuries). The prior 2-week (7242 vs 6613 m/s2; P = .02), 3-week (10,533 vs 9718 m/s2; P = .02), and 4-week (13,819 vs 12,892 m/s2; P = .04) accumulated player loads and 2-week (62.40 vs 57.25 km; P = .04), 3-week (90.97 vs 84.10 km; P = .03), and 4-week (119.31 vs 111.38 km; P = .05) accumulated total distances were significantly higher for injured players compared with noninjured players during the same time frames. There were no significant differences in player load, total distance, or high-speed distance ACWR between injured and noninjured players for both the rolling averages and EWMA calculations. Conclusion: Higher accumulated player load and total distance, but not ACWR, were associated with injury in women’s soccer players.

Coping Strategies Used by Athletic Training Majors to Manage Clinical and Academic Responsibilities

2015 ◽  
Vol 20 (3) ◽  
pp. 4-12 ◽  
Author(s):  
Stephanie M. Mazerolle ◽  
Thomas G. Bowman ◽  
Carrie Fister
Keyword(s):  
Data Collection ◽  
Coping Strategies ◽  
Training Program ◽  
Athletic Training ◽  
Time Management ◽  
Training Programs ◽  
Strong Support ◽  
Online Questionnaire ◽  
Data Collection And Analysis ◽  
Stress Relieving

Context:Athletic training majors are at risk for experiencing elevated stress, frustrations, and eventual burnout. Evidence suggests that stressors can accumulate over time, but academic standing can plausibly influence experiences with stress.Objective:Gain information related to coping strategies used by athletic training majors to manage their stress and frustrations to prevent burnout.Design:Online qualitative study.Setting:Athletic training programs.Patients or Other Participants:10 sophomores, 9 juniors, and 4 seniors completed the online questionnaire. The athletic training majors were recruited from four institutions with accredited programs.Data Collection and Analysis:Data were collected in March 2013 via asynchronous online interviewing via QuestionPro. All participants responded to the same set of 25 questions and data were analyzed following a general inductive approach. The questionnaire was reviewed by a peer and piloted. Multiple analyst coding was completed.Results:We identified an overarching theme of personal coping strategies, which athletic training majors used to manage and cope with their stressors. These strategies were simply considered outside the confines of the athletic training program itself, and included outside support networks, physical outlets, and time management skills. We acknowledged athletic training majors also employed stress-relieving strategies that were facilitated within or by the athletic training program itself. Specifically, our participants noted that they received support from peer and programmatic personnel (preceptors, faculty).Conclusions:Athletic training majors must develop personal strategies that can help them best alleviate their stressors, but also must have strong support in place especially within their athletic training programs. We recommend that athletic training majors reflect upon what strategies work best for them and to find hobbies and personal interests that help them de-stress and rejuvenate from their demanding workloads.

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