CrossFit and rhabdomyolysis: A case series of 11 patients presenting at a single academic institution |
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| Affiliation: | 1. Feinberg School of Medicine, Northwestern University, USA;2. Department of Neurosurgery, Northwestern Memorial Hospital, Northwestern Medicine, USA;1. UC Research Institute for Sport and Exercise, University of Canberra, Australia;2. Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Australia;3. Centre for Research on Ageing, Health and Wellbeing, Australian National University, Australia;4. School of Psychology, University of New South Wales, Australia;5. Neuroscience Research Australia, Australia;1. Institute for Health and Sport, Victoria University, Australia;2. Institute for Clinical Exercise and Health Science, University of the West of Scotland, UK;3. Division of Biomedical Science, Institute of Health Research and Innovation, University of the Highlands and Islands, UK;4. Clinical & Experimental Sciences, Faculty of Medicine, NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, UK;1. Physical Activity Exchange, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, UK;2. Department of Sport and Physical Activity, Edge Hill University, UK;3. Diabetes Research Centre, University of Leicester, Leicester General Hospital, UK;4. NIHR Leicester Biomedical Research Centre, UK;5. Alliance for Research in Exercise, Nutrition and Activity (ARENA), Sansom Institute for Health Research, Division of Health Sciences, University of South Australia, Australia;1. School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University, Kingston upon Thames, UK;2. LGC, Middlesex, UK;1. Faculty of Tourism and Recreation, Gdansk University of Physical Education and Sport, Poland;2. Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, South Africa;3. Applied Physiology Unit, Military Institute of Hygiene and Epidemiology, Poland;4. Faculty of Physical Education, Gdansk University of Physical Education and Sport, Poland;5. Faculty of Physiotherapy, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland |
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| Abstract: | ObjectivesCrossFit is an increasingly popular high intensity work out program geared towards high repetition and intensity done in short intervals. Recently, documented cases of rhabdomyolysis (muscle necrosis and extreme muscle breakdown) after CrossFit participation have become increasingly concerning to physicians and participants alike.DesignRetrospective cohort study.MethodsAll patients who presented to the main hospital at a major academic center complaining of an injury sustained performing CrossFit between June 2010 and June 2016 were identified by the key phrases ‘CrossFit’, ‘crossfit’, ‘Crossfit’ or ‘cross fit’.Results523 patients incurred injuries associated with CrossFit activities. 11 patients presented to our institution ultimately received a diagnosis of rhabdomyolysis (2.1%). The average age of Rhabdomyolysis patient was 34.9 years, with 81.9% of patients being male. The average BMI was 24.2, and the average experience level was beginner (54.5%). The most common presenting symptom was dark urine (90.9%), followed by upper extremity pain (54.5%). Average symptom duration was 2.9 days with 81.8% of patients presenting initially to the ED. The average hospital stay was roughly 2.9 days, and patients had an average of 1.44 clinical follow up visits.ConclusionCrossFit participation poses significant risks to participants including exercise induced rhabdomyolysis. Further study is needed in order to raise awareness of this issue and further quantify risk factors that may promote injury during participation. |
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| Keywords: | CrossFit Rhabdomyolysis Exercise induced injury High-intensity workout |
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