Predictors of 5-km Race Performance in Division I Cross-Country Runners

2010 ◽  
Vol 42 ◽  
pp. 300
Author(s):  
Jamie Ghigiarelli
Keyword(s):  
Division I ◽  
Cross Country ◽  
Cross Country Runners ◽  
Race Performance

scholarly journals Relationship Between Hepcidin, Interluken-6, And Ferritin In Division-I Cross-country Runners Over A Competitive Season

2019 ◽  
Vol 51 (Supplement) ◽  
pp. 25
Author(s):  
Jesse A. Goodrich ◽  
Sewan Kim ◽  
Dillon J. Frisco ◽  
Kimberly Detwiler ◽  
Miguel Rueda ◽  
...  
Keyword(s):  
Division I ◽  
Competitive Season ◽  
Cross Country ◽  
Cross Country Runners

scholarly journals Seasonal Body Composition Changes in Division I Cross Country Runners

2019 ◽  
Vol 51 (Supplement) ◽  
pp. 909
Author(s):  
Katie R. Hirsch ◽  
Malia N.M. Blue ◽  
Gabrielle J. Brewer ◽  
Austin M. Peterjohn ◽  
Abbie E. Smith-Ryan
Keyword(s):  
Body Composition ◽  
Division I ◽  
Cross Country ◽  
Cross Country Runners ◽  
Composition Changes

scholarly journals A Two-year Examination Of Bone Mineral Density In Division I Cross-country Runners

2020 ◽  
Vol 52 (7S) ◽  
pp. 71-71
Author(s):  
Michael P. Martinez ◽  
William P. McCormack ◽  
Hawley C. Almstedt ◽  
Todd C. Shoepe
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Division I ◽  
Mineral Density ◽  
Cross Country ◽  
Cross Country Runners

Relationship Between Stress Fractures, Muscle Size, Quality, And Body Composition In Division I Cross-country Runners

2014 ◽  
Vol 46 ◽  
pp. 266-267
Author(s):  
Erica J. Roelofs ◽  
Abbie E. Smith-Ryan ◽  
Malia N. Melvin ◽  
Hailee L. Wingfield ◽  
Eric T. Trexler ◽  
...  
Keyword(s):  
Body Composition ◽  
Stress Fractures ◽  
Division I ◽  
Muscle Size ◽  
Cross Country ◽  
Cross Country Runners

scholarly journals Longitudinal Changes in Running Gait Asymmetries and Their Relationship to Personal Record Race Times in Collegiate Cross Country Runners

Symmetry ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1729
Author(s):  
Mikel R. Stiffler-Joachim ◽  
Stephanie A. Kliethermes ◽  
Jack A. Martin ◽  
Claire S. Tanaka ◽  
Ramsey Benkert ◽  
...  
Keyword(s):  
Ankle Dorsiflexion ◽  
Time Base ◽  
Reaction Forces ◽  
Ground Contact Time ◽  
Cross Country ◽  
Cross Country Runners ◽  
Hip Flexion ◽  
Race Performance ◽  
Hip Extension ◽  
Over Time

Minimizing between-limb asymmetries during running is often a goal of training, as increased asymmetries are related to decreased efficiency and increased energy expenditure. However, it is unknown if asymmetries change with increased running exposure or are related to actual race performance. The purpose of this study was to determine (1) if pre-season asymmetries changed year-to-year among collegiate cross country runners, and (2) if these asymmetries were associated with within-season personal records (PRs). Pre-season biomechanical test results and race performance data were analyzed for 54 unique runners (28 female) across six seasons, totaling 152 assessments (age: 19.1 (0.9) years, height: 1.71 (0.10) m, weight: 61.7 (7.7) kg (values = mean [standard deviation])). Biomechanical asymmetries included ground reaction forces; ground contact time; base of gait; foot inclination angle; and peak hip flexion, hip extension, hip adduction, pelvic drop, knee flexion, and ankle dorsiflexion. Year of collegiate eligibility was used to quantify training exposure. Asymmetries during running did not change across years of eligibility (p ≥ 0.12), except propulsive impulse, which decreased over time (p = 0.03). PR times were faster with decreased propulsive impulse asymmetry and increased AVLR and peak ankle dorsiflexion asymmetries. This is the first study to assess longitudinal asymmetries over time and provide potential targets for interventions aimed at modifying asymmetries to improve performance.

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