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Peter Peeling, Martyn J. Binnie, Paul S.R. Goods, Marc Sim and Louise M. Burke

these underpinning factors are accounted for, and the athlete reaches a training maturity and competition level where marginal gains determine success, a role may exist for the use of evidence-based performance supplements. Although an array of supplements are marketed for the enhancement of sports

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Insook Kim, Phillip Ward, Oleg Sinelnikov, Bomna Ko, Peter Iserbyt, Weidong Li and Matthew Curtner-Smith

-Hammond & Bransford, 2005 ; Kennedy, 2016 ; Ward, 2016 ). Mirroring the larger educational community, there have been calls for sport pedagogists to develop this kind of evidence-based practice for physical educators to employ ( Hastie, 2016 ; Institute of Medicine, 2013 ; McKenzie & Lounsbery, 2013 ; Ward, 2013

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Ahmed Al-Emadi, Nicholas D. Theodorakis, Donna Pastore, Abdellatif Sellami and Abdulaye Diop

% CI = .01 – .04). All items had factor loadings >.50, and they loaded on the appropriate factors. An exception was the rewards item “lack of educational programs for coaches.” Also, all t-values were statistically significant (≥±1.96) indicating preliminary evidence of convergent validity. In addition

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Jennifer Campbell, Stephanie Rossit and Matthew Heath

in online corrections. Once again, such results provide some evidence of a loVF advantage for movement planning but not online control. An identified feature of the dorsal stream is the processing of visual information at the time of response cuing (i.e., real-time control; Westwood & Goodale, 2003

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Brian D. Seiler, Eva V. Monsma and Roger D. Newman-Norlund

This study extended motor imagery theories by establishing specificity and verification of expected brain activation patterns during imagery. Eighteen female participants screened with the Movement Imagery Questionnaire-3 (MIQ-3) as having good imagery abilities were scanned to determine the neural networks active during an arm rotation task. Four experimental conditions (i.e., KINESTHETIC, INTERNAL Perspective, EXTERNAL Perspective, and REST) were randomly presented (counterbalanced for condition) during three brain scans. Behaviorally, moderate interscale correlations were found between the MIQ-3 and Vividness of Movement Imagery Questionnaire-2, indicating relatedness between the questionnaires. Partially confirming our hypotheses, common and distinct brain activity provides initial biological validation for imagery abilities delineated in the MIQ-3: kinesthetic imagery activated motor-related areas, internal visual imagery activated inferior parietal lobule, and external visual imagery activated temporal, but no occipital areas. Lastly, inconsistent neuroanatomical intraindividual differences per condition were found. These findings relative to recent biological evidence of imagery abilities are highlighted.

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Duane Knudson, Bruce Elliott and Tim Ackland

Applied research in kinesiology that can truly inform professional practice places high demands on researchers. Clear citation of research evidence is required to design meaningful research and is particularly important in the interpretation of evidence in proposing how the new results may be applied in sport, exercise, or physical activity. This paper summarizes principles for accurate citation of research evidence in justifying and designing applied research in kinesiology; it also proposes an evidence-based practice approach for interpreting the strength of evidence for the application potential of research results. Improved application of kinesiology research is important to advance recognition of the field and support for kinesiology professions.

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Marco Beato, Stuart A. McErlain-Naylor, Israel Halperin and Antonio Dello Iacono

This review summarizes the current evidence regarding postactivation potentiation (PAP) strategies using flywheel eccentric overload (EOL) exercises. The first section covers the PAP phenomenon, its underpinning neurophysiological mechanisms, and commonly used PAP protocols. The second section

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Lori Bolgla and Terry Malone

Objective:

To provide evidence regarding the therapeutic effects of exercise on subjects with patellofemoral-pain syndrome (PFPS).

Data Sources:

Evidence was compiled with data located using the Medline, CINAHL, and SPORTDiscus databases from 1985 to 2004 using the key words patellofemoral pain syndrome, exercise, rehabilitation, and strength.

Study Selection:

The literature review examined intervention studies evaluating the effectiveness of exercise in subjects specif-cally diagnosed with PFPS. Articles were selected based on clinical relevance to PFPS rehabilitation that required an intervention of a minimum of 4 weeks.

Data Synthesis:

The review supports using exercise as the primary treatment for PFPS.

Conclusions:

Evidence exists regarding the use of isometric, isotonic, isokinetic, and closed kinetic chain exercise. Although clinicians have advocated the use of biofeedback and patella taping, there is limited evidence regarding the efficacy of these interventions on subjects diagnosed with PFPS.

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Scott W. Cheatham, Keelan R. Enseki and Morey J. Kolber

Context:

Hip arthroscopy has become an increasingly popular option for active individuals with recalcitrant hip pain. Conditions that may be addressed through hip arthroscopy include labral pathology, femoral acetabular impingement, capsular hyperlaxity, ligamentum teres tears, and the presence of intra-articular bodies. Although the body of literature examining operative procedures has grown, there is a paucity of evidence specifically on the efficacy of postoperative rehabilitation programs. To date, there are no systematic reviews that have evaluated the available evidence on postoperative rehabilitation.

Objective:

To evaluate the available evidence on postoperative rehabilitation programs after arthroscopy of the hip joint.

Evidence Acquisition:

A search of the PubMed, CINAHL, SPORTDiscus, ProQuest, and Google Scholar databases was conducted in January 2014 according the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for reporting systematic reviews.

Evidence Synthesis:

Six studies met the inclusion criteria and were either case series or case reports (level 4 evidence) that described a 4- or 5-phase postoperative rehabilitation program. The available evidence supports a postoperative period of restricted weight bearing and mobility; however, the specific interventions in the postoperative phases are variable with no comparison trials.

Conclusion:

This review identified a paucity of evidence on postoperative rehabilitation after hip arthroscopy. Existing reports are descriptive in nature, so the superiority of a particular approach cannot be determined. One can surmise from existing studies that a 4- to 5-stage program with an initial period of weight-bearing and mobility precautions is efficacious in regard to function, patient satisfaction, and return to competitive-level athletics. Clinicians may consider such a program as a general guideline but should individualize treatment according to the surgical procedure and surgeon guidelines. Future research should focus on comparative trials to determine the effect of specific postoperative rehabilitation designs.

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Paul R. Geisler and Todd Lazenby

Clinical practice in sports medicine is often guided by axioms or paradigms of practice, some of which have persisted over time despite a lack of objective evidence to support their validity. Evidence-based practice compels practicing clinicians to not only seek out and produce evidence that informs their decision-making, but also to challenge existing paradigms of thought and practice, especially when favorable treatment outcomes remain elusive. Insidious, load induced lateral knee pain around the iliotibial band in runners, cyclists, military personnel, rowers, and other athletes has for decades now been conceptualized as iliotibial band friction syndrome, a biomechanically based and unsubstantiated paradigm based on Renne’s 1975 theory that the iliotibial band slips back and forth over the lateral femoral epicondyle during flexion and extension movements of the knee, primarily irritating the underlying bursa and even the iliotibial band itself. Newer evidence about the anatomy and biomechanics of the iliotibial band, the physiology of the condition, and interventional outcomes is now available to challenge that long-held paradigm of thought for iliotibial band related pathology. Given this plethora of new information available for clinical scientists, iliotibial band impingement syndrome is proposed here as a new, evidence-informed paradigm for evaluating and treating this problematic overuse syndrome.