Nitric oxide (NO) is a small free radical generated by a family of enzymes, the nitric oxide synthases (NOSs). Following injury to a tendon, NO is induced by all three isoforms of NOS and NOS activity ...

Background Occupational and leisure-time physical activity are considered to provide similar health benefits. The authors tested this hypothesis. Methods A representative sample of Danish employees ...

Objective: The biomechanics of the head for punches to the jaw and the risk of head injury from translational and rotational acceleration were studied. Methods: Seven Olympic boxers from five weight ...

2 Department of Physical Medicine and Rehabilitation, Mayo Clinic college of Medicine, Mayo Clinic Sports Medicine Center, Rochester, Minnesota, USA Background The use of diagnostic and interventional ...

Objective To study the injury characteristics in professional football and to follow the variation of injury incidence during a match, during a season and over consecutive seasons. Design Prospective ...

Hamstring injuries (HSIs) are the most common athletic injury in running and pivoting sports, but despite large amounts of research, injury rates have not declined in the last 2 decades. HSI often ...

Eligibility criteria We searched four databases (PubMed, Embase, SPORTDiscus and Web of Science) for randomised controlled trials, published until December 2019, examining the effect of β2-agonists on ...

1 Department of Sports Science and Physical Education, The Chinese University of Hong Kong 2 Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong Correspondence to: Dr Li, ...

Objectives To determine the association between surrogates of low energy availability (EA) and proposed health and performance outcomes of Relative Energy Deficiency in Sport (REDs) in a clinical ...

Correspondence to Dr Brent E Hagel, Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada; brent.hagel{at}albertahealthservices.ca Background ...

1 Puget Sound Sports and Spine Physicians, Seattle, Washington, USA and Department of Rehabilitation Medicine, University of Washington, Seattle 2 Puget Sound Sports and Spine Physicians and ...

Correspondence to Dr Kimberly G Harmon, Departments of Family Medicine and Orthopaedics and Sports Medicine, University of Washington, Seattle WA 98195, USA; kharmon{at}uw.edu Sport-related concussion ...