The Ontario cohort study of running-related injuries

Article Abstract:

A study was conducted of 1,680 runners who enrolled as part of the sign-up procedure for two community road races in Ontario, Canada. These volunteers were followed during the next 12 months for running-related injuries to their musculoskeletal systems. Questionnaires were distributed on the day of the race and many of the participants in the study also received a brief physical examination by a group of trained nonphysician observers. The runners also received a follow-up letter stating the purpose of the study and offering a lottery ticket as an incentive for participation, a strategy that has been found to be effective. The questionnaire covered training, warm-up and cool-down practices, other sports activity, terrain, occupation, shoe type, height and weight, type and number of races run, smoking status, and history of injury in the previous year. The risk of injury during the year was high; 48 percent experienced at least one injury during the study. Of these, 46 percent were recurrences of past injuries and the rest were new. The site of injury included: knee (27 percent), foot (16 percent), ankle (15 percent), back (11 percent), hip (9 percent) and thigh (7 percent). Participation in sports other than dancing and ice skating was not related to the risk of running- injury. There was also no relationship between measurements of body configuration and injury. Risk of injury was highly associated with running more than 40 miles per week, owning more than two pair of running shoes, and with previous injury. These data confirm that the risk of injury in runners is high.

Ankle, Ankle injuries, Knee, Knee injuries, Back, Foot, Foot injuries

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Predicting lower-extremity injuries among habitual runners

Article Abstract:

Habitual runners were recruited from a list of individuals wishing to be notified of road races in the state of South Carolina. Each selected individual was mailed a consent form and a questionnaire that requested information on present and past running history. Runners agreeing to participate were sent a monthly running log and newsletter. Injury, for purposes of this study, was defined as a problem that caused a change in running behavior, a visit to a physician or the use of medication. From the data provided a measure of body conformation, the body mass index, was calculated and correlated with injury. During the year-long study, 252 men (52 percent) and 48 women (49 percent) reported injuries. The most significant predictor of running-related injury was running 40 or more miles per week. There was also a strong likelihood of injury if an injury had been sustained during the previous year. The data reveal that novice runners and seasoned runners experience approximately the same rate of injury. However, the lowest rate of injury was among men who had been running for the greatest period of time. The findings of this study are in conformity with the other studies.

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Assessing diagnostic classification in an emergency department: implications for daily time series studies of air pollution

Article Abstract:

A study obtained seven independent assessments of diagnosis for 92 records of nontraumatic emergency department visits in Saint John, New Brunswick, Canada. The hospital database was 1.18 times as likely as six external physician raters to classify visits as cardiorespiratory, asthma, cardiac, and others.

Surveys, Identification and classification, Circulatory system, Hospital patients, Lung diseases, Cardiopulmonary system, Respiratory system, Cardiac arrest

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