Exercise-related leg pain in collegiate cross-country athletes: extrinsic and intrinsic risk factors.
METHODS
Prospective cohort design.


OBJECTIVE
To determine in a sample of collegiate cross-country athletes (1) the percentage of athletes with history of exercise-related leg pain (ERLP) associated with running, (2) the incidence of ERLP during 1 season, (3) if factors including years of collegiate running, training distance, and gender are associated with ERLP, and (4) if there is a relationship between foot type and ERLP.


BACKGROUND
ERLP is a common overuse pain syndrome, but little evidence exists regarding the prevalence, incidence, and risk factors.


METHODS
Eighty-eight collegiate cross-country athletes (44 male, 44 female) from 5 Midwest universities consented to participate, Prior to the season, athletes completed a questionnaire and 3 measures of foot type were performed: navicular drop, medial longitudinal arch angle, and visual assessment of foot type. Athletes completed a postseason questionnaire regarding the season incidence of ERLP Statistical analyses of differences (t test, proportion test) and relationships (chi-square, relative risk) were conducted.


RESULTS
Prior to the season, 60 of the 88 athletes (68%) reported a history of ERLP with bilateral medial leg pain the most common ERLP presentation. Over 50% of the athletes with a history of ERLP reported that the pain had interfered with cross-country participation. Of the 67 postseason respondents, 38.8% reported ERLP incidence during the season. Most athletes (80.8%) who reported season incidence of ERLP had a previous history of ERLP There were no differences between athletes with and without a history of ERLP or season incidence of ERLP regarding years of collegiate running, training distance, gender, and foot measures.


CONCLUSIONS
ERLP history and season incidence was common among these cross-country athletes. The only risk factor identified for season incidence of ERLP was a history of ERLP.
Saint Louis University, Doisy College of Health Sciences, Department of Physical Therapy, St Louis, MO 63104, USA. reinking@slu.edu
Mark F
MF
Reinking
Tricia M
TM
Austin
Ann M
AM
Hayes
D000293:Adolescent; D000328:Adult; D012090:Cumulative Trauma Disorders / Q000150:complications* / Q000453:epidemiology / Q000503:physiopathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007866:Leg / Q000503:physiopathology*; D008297:Male; D010146:Pain / Q000453:epidemiology / Q000209:etiology* / Q000503:physiopathology; D010147:Pain Measurement; D015995:Prevalence; D011446:Prospective Studies; D012307:Risk Factors; D012420:Running / Q000293:injuries*; D011795:Surveys and Questionnaires; D014481:United States / Q000453:epidemiology