Kevin Lieberthal1, Kade L Paterson2, Jill Cook3, Zoltan Kiss4, Michael Girdwood3, Elizabeth J Bradshaw5. 1. Australian Catholic University, Faculty of Health Sciences, Melbourne, Australia; Physio@Central Park, Melbourne, Australia. 2. Centre for Health, Exercise and Sports Medicine, University of Melbourne, Victoria, Australia. 3. La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Australia. 4. Previously affiliated with Imaging @ Olympic Park, Melbourne, Australia. 5. Deakin University, Centre for Sport Research, School of Exercise and Nutrition Sciences, Melbourne, Australia; Auckland University of Technology, Sport Performance Research Institute New Zealand, Auckland, New Zealand. Electronic address: liz.bradshaw@deakin.edu.au.
Abstract
OBJECTIVES: This study investigated the prevalence of tendon pathology and associated factors in experienced, high mileage male endurance runners with no history of Achilles tendon pain. DESIGN: Cross-sectional study. SETTING: Achilles tendinopathy is a debilitating running injury affecting 50% of distance runners over their lifetime. It is diagnosed through a clinical examination and imaging, usually grey scale ultrasound (US) imaging. US imaging studies have shown that pathological changes can occur in asymptomatic individuals with no tendon pain. PARTICIPANTS: Thirty seven male runners who had never had Achilles tendon pain. MAIN OUTCOME MEASURES: Participants completed a running history survey, had their height, body mass, waist circumference, and ankle dorsiflexion range of movement (ROM) measured, and their tendons were assessed (normal, abnormal) using US imaging. RESULTS: Almost half (46%) of these asymptomatic distance runners had at least one abnormal tendon. The runners with tendon pathology had significantly (p = 0.024) more years of running training (abnormal: median 20 years, interquartile range 6-25.5) than runners with no pathology (normal: median 7 years, interquartile range 5-15). No other significant differences between the groups were identified. CONCLUSIONS: Asymptomatic male distance runners had a high incidence of tendon pathology. Increased running years was associated with pathology in the Achilles tendon...
OBJECTIVES: This study investigated the prevalence of tendon pathology and associated factors in experienced, high mileage male endurance runners with no history of Achilles tendon pain. DESIGN: Cross-sectional study. SETTING:Achilles tendinopathy is a debilitating running injury affecting 50% of distance runners over their lifetime. It is diagnosed through a clinical examination and imaging, usually grey scale ultrasound (US) imaging. US imaging studies have shown that pathological changes can occur in asymptomatic individuals with no tendon pain. PARTICIPANTS: Thirty seven male runners who had never had Achilles tendon pain. MAIN OUTCOME MEASURES: Participants completed a running history survey, had their height, body mass, waist circumference, and ankle dorsiflexion range of movement (ROM) measured, and their tendons were assessed (normal, abnormal) using US imaging. RESULTS: Almost half (46%) of these asymptomatic distance runners had at least one abnormal tendon. The runners with tendon pathology had significantly (p = 0.024) more years of running training (abnormal: median 20 years, interquartile range 6-25.5) than runners with no pathology (normal: median 7 years, interquartile range 5-15). No other significant differences between the groups were identified. CONCLUSIONS: Asymptomatic male distance runners had a high incidence of tendon pathology. Increased running years was associated with pathology in the Achilles tendon...
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