Roald Bahr
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View article: International Ski and Snowboard Federation (FIS) consensus statement on training and testing in competitive alpine and freestyle skiers and snowboarders
International Ski and Snowboard Federation (FIS) consensus statement on training and testing in competitive alpine and freestyle skiers and snowboarders Open
To enhance performance, increase resilience and prevent injuries, training and testing (T&T) are the most important strategies for preparing athletes for the demands of their sport. However, for competitive snow sports such as alpine skiin…
View article: Lessons Learned from Implementing Injury and Illness Surveillance in Professional Football: Introducing a New Implementation Framework
Lessons Learned from Implementing Injury and Illness Surveillance in Professional Football: Introducing a New Implementation Framework Open
View article: #<scp>ReadyToPlay</scp>: Risk Factors in the Norwegian Women's Premier League Football—Perceptions and Priorities of Club Stakeholders
#<span>ReadyToPlay</span>: Risk Factors in the Norwegian Women's Premier League Football—Perceptions and Priorities of Club Stakeholders Open
Women's premier league footballers have a high risk of injury. Risk management has been proposed as a framework for improving athlete health, through describing, assessing, and addressing potential risks. This article aim to describe the r…
View article: Out-of-hospital cardiac arrest in Norwegians aged 12–49 years: nationwide analysis of preceding symptoms and risk factors related to aetiology and pre-arrest exercise habits
Out-of-hospital cardiac arrest in Norwegians aged 12–49 years: nationwide analysis of preceding symptoms and risk factors related to aetiology and pre-arrest exercise habits Open
Background Out-of-hospital cardiac arrest (OHCA) in the young is a tragic event. Regular exercise reduces cardiovascular disease (CVD) risk but, at certain intensities and volumes, is associated with increased OHCA risk. Understanding symp…
View article: One‐Year Follow‐Up of Clinical and Morphological Outcomes in Elite Athletes With Early‐Stage Lower Extremity Tendinopathy
One‐Year Follow‐Up of Clinical and Morphological Outcomes in Elite Athletes With Early‐Stage Lower Extremity Tendinopathy Open
Little is known about early tendinopathy in elite athletes. This study aimed to investigate changes in clinical and ultrasonography outcomes over 1 year and assess the prognostic values of these outcomes at baseline with respect to tendino…
View article: Making, not breaking the young, aspiring athlete: the development of Prep to be PRO (Nærmere Best) – a Norwegian school-based educational programme
Making, not breaking the young, aspiring athlete: the development of Prep to be PRO (Nærmere Best) – a Norwegian school-based educational programme Open
Background The most talented young athletes often face challenges related to sports health problems (ie, injury and illness), largely due to inappropriate training, condensed competition schedules and high demands. Previous preventive meas…
View article: International Ski and Snowboard Federation consensus statement on warm-up and cool-down in competitive alpine and freestyle skiers and snowboarders
International Ski and Snowboard Federation consensus statement on warm-up and cool-down in competitive alpine and freestyle skiers and snowboarders Open
In diverse sports, warm-up (WUP) and cool-down (CD) activities are highly effective at improving performance-relevant factors and reducing the risk of injury when applied systematically; however, scientific evidence is widely lacking in sn…
View article: Injury and illness prevention practices in Qatar’s professional football clubs—implementation of the IP<sup>2</sup> NetWork
Injury and illness prevention practices in Qatar’s professional football clubs—implementation of the IP<sup>2</sup> NetWork Open
Background The Aspetar Sports Injury and Illness Prevention Programme introduced the Aspetar IP 2 NetWork, a customizable injury prevention programme for professional football clubs in Qatar during the 2020/2021 season. It includes 23 focu…
View article: Snow sports-specific extension of the IOC consensus statement: methods for recording and reporting epidemiological data on injury and illness in sports
Snow sports-specific extension of the IOC consensus statement: methods for recording and reporting epidemiological data on injury and illness in sports Open
The International Olympic Committee’s (IOC) consensus statement on ‘methods for recording and reporting of epidemiological data on injury and illness in sport’ recommended standardising methods to advance data collection and reporting cons…
View article: Long-term Prognosis of Patellar Tendinopathy (Jumper’s Knee) in Young, Elite Volleyball Players: Tendon Changes 11 Years After Baseline
Long-term Prognosis of Patellar Tendinopathy (Jumper’s Knee) in Young, Elite Volleyball Players: Tendon Changes 11 Years After Baseline Open
Background: The long-term prognosis of jumper's knee and whether structural changes in the patellar tendon persist is unknown. Purpose: To investigate whether limitations in knee function and structural changes persisted beyond the athleti…
View article: Clinical and Imaging Outcomes Over 12 Weeks in Elite Athletes With Early‐Stage Tendinopathy
Clinical and Imaging Outcomes Over 12 Weeks in Elite Athletes With Early‐Stage Tendinopathy Open
Knowledge of how to treat chronic tendinopathy has advanced in recent years, but the treatment of early tendinopathy is not well understood. The main purpose of this prospective observational study was to investigate if changes occur in cl…
View article: Evolution of injury burden in Qatari professional football— 8 season data from the Aspetar Injury and Illness SurveillanceProgramme
Evolution of injury burden in Qatari professional football— 8 season data from the Aspetar Injury and Illness SurveillanceProgramme Open
Prospectively collected injury surveillance data are essential for designing and implementing injury prevention programmes. We investigated the incidence, characteristics and patterns of professional football injuries in Qatar, providing d…
View article: Do not neglect injury severity and burden when assessing the effect of sports injury prevention interventions: time to paint the whole picture
Do not neglect injury severity and burden when assessing the effect of sports injury prevention interventions: time to paint the whole picture Open
View article: Time-loss injuries and illnesses at the FIFA world cup Qatar 2022
Time-loss injuries and illnesses at the FIFA world cup Qatar 2022 Open
The study aimed to analyse incidence and characteristics of time-loss injuries and illnesses during the FIFA World Cup Qatar 2022. Of 838 male football players, 705 consented to participate. Team medical staff reported 82 time-loss injurie…
View article: Comprehensive periodic health evaluations of 454 Norwegian Paralympic and Olympic athletes over 8 years: what did we learn?
Comprehensive periodic health evaluations of 454 Norwegian Paralympic and Olympic athletes over 8 years: what did we learn? Open
Objective A periodic health evaluation (PHE) is a comprehensive and multidisciplinary investigation of athlete health widely used in elite sport, but its contents and benefits can be questioned. This study aimed to determine the prevalence…
View article: #ReadyToplay: hamstring injuries in women’s football – a two-season prospective cohort study in the Norwegian women’s premier league
#ReadyToplay: hamstring injuries in women’s football – a two-season prospective cohort study in the Norwegian women’s premier league Open
In this two-season prospective cohort study (2020-2021), we aimed to describe the characteristics, clinical findings and magnetic resonance imaging (MRI) findings of hamstring injuries in the Norwegian women's premier league. Hamstring inj…
View article: Injury and illness among Norwegian Olympic athletes during preparation for five consecutive Summer and Winter Games
Injury and illness among Norwegian Olympic athletes during preparation for five consecutive Summer and Winter Games Open
Objective To describe the patterns of health problems among Norwegian Olympic candidates during their preparations for five consecutive Olympic Games (London 2012, Sochi 2014, Rio de Janeiro 2016, PyeongChang 2018 and Tokyo 2020). Methods …
View article: #ReadyToPlay: health problems in women’s football–a two-season prospective cohort study in the Norwegian premier league
#ReadyToPlay: health problems in women’s football–a two-season prospective cohort study in the Norwegian premier league Open
Objectives To describe the prevalence, incidence and burden of all health problems in the Norwegian women’s premier league. Methods During the 2020 and 2021 seasons, players in the Norwegian women’s premier league reported all health probl…
View article: Performing Nordic hamstring strength testing with additional weight affects the maximal eccentric force measured: do not compare apples to oranges
Performing Nordic hamstring strength testing with additional weight affects the maximal eccentric force measured: do not compare apples to oranges Open
Background Nordic hamstring test devices are commonly used to measure maximal eccentric hamstring force. The ability to control the final phase of the exercise has been adopted as a criterion to add weight when testing, without substantial…
View article: Exploring Growth, Maturity, and Age as Injury Risk Factors in High-Level Youth Football
Exploring Growth, Maturity, and Age as Injury Risk Factors in High-Level Youth Football Open
Rapid somatic growth and biological maturity status may affect injury patterns in youth football, yet firm conclusions cannot be drawn from the existing research. We aimed to explore growth velocity, maturity, and age as injury risk factor…
View article: Unsupervised field-based exercise challenge tests to support the detection of exercise-induced lower airway dysfunction in athletes
Unsupervised field-based exercise challenge tests to support the detection of exercise-induced lower airway dysfunction in athletes Open
Background Athletes are at risk for developing exercise-induced lower airway narrowing. The diagnostic assessment of such lower airway dysfunction (LAD) requires an objective bronchial provocation test (BPT). Objectives Our primary aim was…
View article: A 3‐year population‐based study of exercise‐related sudden cardiac arrest among 12‐ to 50‐year‐old Norwegians
A 3‐year population‐based study of exercise‐related sudden cardiac arrest among 12‐ to 50‐year‐old Norwegians Open
Introduction Regular exercise is associated with reduced risk of cardiovascular disease. Paradoxically, an increased risk of sudden cardiac arrest (SCA) is documented during or immediately after exercise and in athletes compared to the non…
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Issue Information Open
View article: Knee, Low Back, and Shoulder Problems Among University and Professional Volleyball Players: Playing With Pain
Knee, Low Back, and Shoulder Problems Among University and Professional Volleyball Players: Playing With Pain Open
Context The knee, low back, and shoulder account for most overuse injuries in volleyball. Previous researchers have used methodology that did not examine the extent of injury burden and effect on performance. Objective To develop a more ac…
View article: Issue Information
Issue Information Open
View article: Obstacles and opportunities for injury prevention in professional football in Qatar: exploring the implementation reality
Obstacles and opportunities for injury prevention in professional football in Qatar: exploring the implementation reality Open
Background Research focusing on reducing the risk of injuries has increased over the last two decades showing that prevention implementation in real life is challenging. Objective To explore the experience and opinions of professional foot…
View article: Associations between health problems and athlete burnout: a cohort study in 210 adolescent elite athletes
Associations between health problems and athlete burnout: a cohort study in 210 adolescent elite athletes Open
Objectives We studied associations between the burden of health problems and athlete burnout in a population of athletes from Norwegian Sport Academy High Schools. Methods This is a mixed prospective/retrospective cohort study. We included…
View article: 117 Groin injuries in women’s premier league football in Norway. A 2-year prospective cohort study describing clinical and imaging characteristics
117 Groin injuries in women’s premier league football in Norway. A 2-year prospective cohort study describing clinical and imaging characteristics Open
Introduction The primary aim of this study was to describe the clinical entities and imaging characteristics of groin injuries in women's football. Materials and Methods During the 2020 and 2021 seasons, players in the Norwegian women's pr…
View article: Football-specific extension of the IOC consensus statement: methods for recording and reporting of epidemiological data on injury and illness in sport 2020
Football-specific extension of the IOC consensus statement: methods for recording and reporting of epidemiological data on injury and illness in sport 2020 Open
Several sports have published consensus statements on methods and reporting of epidemiological studies concerning injuries and illnesses with football (soccer) producing one of the first guidelines. This football-specific consensus stateme…
View article: Fractures in professional footballers: 7-years data from 106 team seasons in the Middle East
Fractures in professional footballers: 7-years data from 106 team seasons in the Middle East Open
Epidemiological studies on fractures in European professional football (soccer) are in abundance. However, such data are lacking in Middle Eastern professional footballers and information on fracture treatment is scarce. The aim of this st…