Publications by authors named "Brett Toresdahl"

Endurance events are popular worldwide and have many health benefits. However, runners and Para athletes may sustain musculoskeletal injuries or experience other health consequences from endurance events. The American Medical Society for Sports Medicine (AMSSM) Runner Health Consortium aimed to generate consensus-based survey items for use in prospective research to identify risk factors for injuries in runners and Para athletes training and competing in endurance events.

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Background: The relationship between self-reported symptoms and the severity of patellar tendon abnormality (PTA) as seen on magnetic resonance imaging and ultrasound is unclear, but biomechanical testing may resolve this.

Purpose: To (1) compare land-jump limb biomechanics between pre- and postseason timepoints, (2) assess whether seasonal changes in biomechanics are associated with seasonal changes in PTA and symptom severity, and (3) explore models that identify seasonal changes in PTA and symptoms with seasonal changes in biomechanics in collegiate basketball players.

Study Design: Cohort study; Level of evidence, 2.

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Background: Patellar tendinopathy is a degenerative condition that predominantly affects jumping athletes. Symptoms may be subtle or nonexistent at preseason, but structural abnormalities may be present. Assessing patellar tendon abnormality (PTA) through magnetic resonance imaging (MRI) and ultrasound (US) and classifying symptoms using the Victorian Institute for Sport Assessment-Patellar tendon (VISA-P) may provide useful insights if combined with biomechanics measurements.

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Objectives: The purpose of this study was to describe injury patterns and healthcare utilisation of marathon runners.

Methods: This was a previously reported 16-week prospective observational study of runners training for the New York City Marathon. Runners completed a baseline survey including demographics, running experience and marathon goal.

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Article Synopsis
  • Lower extremity bone stress injuries (BSIs) are prevalent in high-impact athletes, and traditional imaging methods have limitations in assessing their healing process.
  • This study hypothesizes that serial ultrasonography (US) can effectively track changes in BSIs over time, linking these changes to pain levels and the ability to return to sports.
  • Results show that US can provide objective healing measures, with findings correlating well with clinical symptoms and recovery, suggesting US could be an advantageous tool for monitoring BSIs compared to standard imaging techniques.
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Objective: The objective of this study is to describe the incidence of injuries and illnesses sustained during the Beijing Winter Olympic Games from 4 February 2022 to 20 February 2022.

Methods: We recorded the daily number of athlete injuries and illnesses (1) through the reporting of all National Olympic Committee (NOC) medical teams and (2) in the polyclinic and medical venues by the Beijing 2022 medical staff.

Results: In total, 2848 athletes (1276 women, 45%; 1572 men, 55%) from 91 NOCs were followed prospectively for the occurrence of injury and illness.

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Objective: Training patterns are commonly implicated in running injuries. The purpose of this study was to measure the incidence of injury and illness among marathon runners and the association of injuries with training patterns and workload.

Methods: Runners registered for the New York City Marathon were eligible to enrol and prospectively monitored during the 16 weeks before the marathon, divided into 4-week 'training quarters' (TQ) numbered TQ1-TQ4.

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Purpose Of Review: To review the prevalence, short- and long-term impact of exercise on blood pressure, and the evaluation and treatment of hypertension in competitive athletes.

Recent Findings: Due, in part, to inconsistencies in measurement and the definitions used, the true prevalence of hypertension is unknown as reports range from 0 to 83%. With recent changes in the blood pressure guidelines, the proportion of athletes that meet criteria for elevated blood pressure or stage 1 hypertension has increased dramatically with over one-third of collegiate and professional athletes meeting criteria for hypertension.

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Background: Coronavirus disease 2019 (COVID-19) affects multiple organ systems. Whether and how COVID-19 affects the musculoskeletal system remains unknown. We aim to assess the association between COVID-19 and risk of injury.

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Objectives: To survey runners and triathletes about their willingness to resume in-person racing during the COVID-19 pandemic, health concerns related to mass races and changes in running patterns since the start of the pandemic.

Design: An electronic survey was distributed from 15 July to 1 September 2020 to runners and triathletes by New York Road Runners, ASICS North America, and race medical directors, and through social media.

Participants: Runners and triathletes 18 years of age or older who participated in at least one race in 2019.

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Background: There is a high incidence of performance-related musculoskeletal disorders in musicians that may be reduced via education programs. However, the efficacy of formalized injury prevention programs has not been rigorously studied.

Purpose: To assess the feasibility and effect of a formalized injury prevention education workshop on incidence and severity of musculoskeletal pain in a cohort of musician-students attending an intensive summer music festival compared to controls.

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The use of telehealth has increased as a result of the COVID-19 pandemic. As sports at all levels resume, sports medicine physicians may be interested in how telehealth can be used for concussion care. : We sought to assess how telehealth has been used in the baseline testing, diagnosis, and/or management of concussion.

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Objectives: To determine how baseline characteristics of first-time marathon runners and training patterns are associated with risk of injuries during training and the race.

Methods: First-time adult marathon runners who were registered for the 2017 New York City Marathon were monitored starting 12 weeks prior to the race. Baseline data collection included demographics and running experience.

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Article Synopsis
  • Bone stress injuries (BSIs) are common in runners, and their recovery often involves modifying activity levels, but the impact of actual activity measurement during recovery hasn't been explored.
  • A study monitored the physical activity and pain levels of 18 runners with a new BSI over 30 days using an activity tracker, revealing they averaged over 10,000 steps daily regardless of the type of injury.
  • The results showed no correlation between daily activity and pain levels, suggesting that while runners remain active during recovery, measuring their activity could still help clinicians provide better guidance.
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The role of the sports medicine physician has been challenged in several ways during the COVID-19 pandemic, potentially eroding a sense of well-being. Four universal human needs related to flourishing and a sense of life satisfaction are the framework we use to examine the effects of a pandemic on sports medicine clinicians. We offer two evidence-based practices to promote well-being and resilience within each of the four universal needs.

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Despite the worldwide popularity of running as a sport for children, relatively little is known about its impact on injury and illness. Available studies have focused on adolescent athletes, but these findings may not be applicable to preadolescent and pubescent athletes. To date, there are no evidence or consensus-based guidelines identifying risk factors for injury and illness in youth runners, and current recommendations regarding suitable running distances for youth runners at different ages are opinion based.

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The COVID-19 pandemic has resulted in significant morbidity and mortality around the world. The spectrum of COVID-19 is broad, from clinical disease requiring intensive medical care to less severe symptoms that are treated with supportive care. The majority of COVID-19 cases fall into the mild-to-moderate category, with symptoms lasting less than 6 weeks.

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Article Synopsis
  • COVID-19, caused by the SARS-CoV-2 virus, is a pandemic that primarily affects the respiratory system, though it can have severe implications for other organ systems, including musculoskeletal health.
  • While many infected individuals show mild or no symptoms, some experience long-lasting effects on their quality of life, similar to issues seen in the past with the related SARS-CoV-1 virus.
  • This article aims to summarize existing musculoskeletal problems linked to both SARS and COVID-19, while leveraging computational models and biochemical studies to predict potential long-term impacts of SARS-CoV-2 infection on musculoskeletal cells.
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Objective: To compare cardiovascular screening policies of Australian elite sporting organizations.

Design: Online survey.

Setting: Elite/professional sports in Australia.

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