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The primary purpose of this article is to expand the discussion about the role of science, clinical thinking, the state of the discipline, and the manner in which evidence-based practice may aid in the development of the field of sport psychology. Rejecting pseudoscientific principles and embracing sound scientific standards of research and practice will result in an increasingly fresh and vibrant field from which greater innovation and evolution can occur. This innovation will inevitably lead to a renewed commitment to theory building, as the evolving scientific database will drive new ways of thinking about the myriad of issues presented by athletic clientele. By embracing the evidence-based practice philosophy, not only will sound scientific advancements emerge, but most importantly, the overall well-being of our athletic clientele will be enhanced.

Evidence-based practice (EBP) is a growing movement in the health and educational disciplines that recommends emphasis on research outcomes during decision making in practice. EBP is made possible through evidence based research (EBR), which attempts to synthesize the volume and scientific rigor of intervention effectiveness. With the purpose of assessing the impact of this movement on adapted physical activity, this article (a) describes EBP/EBR and outlines its methodological development, (b) provides an historical perspective of EBP/EBR in APA, (c) examines EBR quality indicators in the review literature published in Adapted Physical Activity Quarterly, (d) identifies and synthesizes thematic domains appearing in these review articles, and (e) discusses practical examples of professional issues in APA arising from a lack of EBR.

The evidence-based practice (EBP) movement has been extremely influential over the last 20 years. Fields like medicine, physiotherapy, occupational therapy, nursing, psychology, and education have adopted the idea that policy makers and practitioners should use interventions that have demonstrated efficiency and effectiveness. This apparently straightforward idea is beginning to affect adapted physical activity; however, researchers and practitioners in our field often appear to be unaware of fundamental questions related to them. The major purpose of this paper is to outline and discuss 10 of these fundamental questions. This analysis leads us to conclude that EBP is a good direction to pursue in adapted physical activity if we develop a type of EBP congruent with the main tenets of our field.

We previously reported an increase in skeletal muscle protein synthesis during fasted and fed recovery from nonexhaustive aerobic exercise (Harber et al., 2010). The current study examined skeletal muscle intracellular signaling in the same subjects to further investigate mechanisms of skeletal muscle protein metabolism with and without feeding following aerobic exercise. Eight males (VO_2peak: 52 ± 2 ml⁻¹.kg⁻¹.min⁻¹) performed 60-min of cycle ergometry at 72 ± 1% VO_2peak on two occasions in a counter-balanced design. Exercise trials differed only in the postexercise nutritional intervention: EX-FED (5kcal, 0.83g carbohydrate, 0.37g protein, 0.03g fat per kg body weight) and EX-FAST (noncaloric, isovolumic placebo) ingested immediately and one hour after exercise. Muscle biopsies were obtained from the vastus lateralis at rest (on a separate day) and two hours postexercise to assess intracellular signaling via western blotting of p70S6K1, eEF2, 4EBP1, AMPKα and p38 MAPK. p70S6K1 phosphorylation was elevated (p < .05) in EX-FED relative to REST and EX-FAST. eEF2, 4EBP1, AMPKα and p38 MAPK signaling were unaltered at 2h after exercise independent of feeding status when expressed as the ratio of phosphorylated to total protein normalized to actin. These data demonstrate that feeding after a nonexhaustive bout of aerobic exercise stimulates skeletal muscle p70S6K1 intracellular signaling favorable for promoting protein synthesis which may, as recent literature has suggested, better prepare the muscle for subsequent exercise bouts. These data provide further support into the role of feeding on mechanisms regulating muscle protein metabolism during recovery from aerobic exercise.