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Rafael Squillantini, Brielle Ringle and Julie Cavallario

Lichtenberg et al. 12 Study Title The Diagnostic Accuracy of the Lever Sign for Detecting Anterior Cruciate Ligament Injury Accuracy of the Lever Sign Test in the Diagnosis of Anterior Cruciate Ligament Injuries Does the Lever Sign Test Have Added Value for Diagnosing Anterior Cruciate Ligament Ruptures

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Liam Anderson, Graeme L. Close, Matt Konopinski, David Rydings, Jordan Milsom, Catherine Hambly, John Roger Speakman, Barry Drust and James P. Morton

Maintaining muscle mass and function during rehabilitation from anterior cruciate ligament injury is complicated by the challenge of accurately prescribing daily energy intakes aligned to energy expenditure. Accordingly, we present a 38-week case study characterizing whole body and regional rates of muscle atrophy and hypertrophy (as inferred by assessments of fat-free mass from dual-energy X-ray absorptiometry) in a professional male soccer player from the English Premier League. In addition, in Week 6, we also quantified energy intake (via the remote food photographic method) and energy expenditure using the doubly labeled water method. Mean daily energy intake (CHO: 1.9–3.2, protein: 1.7–3.3, and fat: 1.4–2.7 g/kg) and energy expenditure were 2,765 ± 474 and 3,178 kcal/day, respectively. In accordance with an apparent energy deficit, total body mass decreased by 1.9 kg during Weeks 1–6 where fat-free mass loss in the injured and noninjured limb was 0.9 and 0.6 kg, respectively, yet, trunk fat-free mass increased by 0.7 kg. In Weeks 7–28, the athlete was advised to increase daily CHO intake (4–6 g/kg) to facilitate an increased daily energy intake. Throughout this period, total body mass increased by 3.6 kg (attributable to a 2.9 and 0.7 kg increase in fat free and fat mass, respectively). Our data suggest it may be advantageous to avoid excessive reductions in energy intake during the initial 6–8 weeks post anterior cruciate ligament surgery so as to limit muscle atrophy.

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Sandra J. Shultz and Randy J. Schmitz

athletic population with and without anterior cruciate ligament injury . American Journal of Sports Medicine, 46 ( 7 ), 1606 – 1616 . PubMed ID: 29733680 doi:10.1177/0363546518768753 10.1177/0363546518768753 Ardern , C.L. , Taylor , N.F. , Feller , J.A. , & Webster , K.E. ( 2014 ). Fifty

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Larry D. Field and Felix H. “Buddy” Savoie III

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Maria Angelika Peer and Nigel Gleeson

neuromuscular control and increase functional joint stability are therefore a critical component in conditioning and rehabilitation programs designed to assist in injury prevention. 8 , 11 Noncontact mechanisms have consistently accounted for more than 70% of serious ligament injuries, 12 , 13 with the

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Jatin P. Ambegaonkar, Sandra J. Shultz, David H. Perrin and Mark R. Schulz

Edited by Mary Barnum

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Brian Powell, Wendy Hurd and Lynn Snyder-Mackler

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Gregory D. Myer, Kevin R. Ford and Timothy E. Hewett

Edited by Tricia J. Hubbard