Comment on: “Sequential Changes in Scapular Range of Motion After an Intervention Using the KOJI AWARENESS Original ‘Wall Angel Slider’ Exercise”

Using the KOJI AWARENESS Original 'Wall Angel Slider' Exercise" published in the Journal of Sport Rehabilitation.The authors address an important topic concerning scapular mobility and glenohumeral joint function particularly through the innovative application of a reverse-action exercise approach.We would like to raise a specific methodological and interpretive concern regarding the attribution of the immediate postsession improvements in range of motion (ROM) to the Wall Angel Slider intervention.The authors report statistically significant increases in scapular upward rotation and glenohumeral external rotation immediately after the first exercise session.While these findings are noteworthy, the absence of a control or familiarization condition limits confidence that these immediate changes reflect a true intervention effect.Repeated goniometric ROM measurements conducted within a single session are known to be sensitive to positioning familiarity, tester-participant interaction, and short-term neuromotor priming, which may produce transient ROM increases independent of physiological adaptation. 2,3his issue merits scholarly discussion because the study design involved repeated measurements taken in close temporal proximity, without accounting for potential testing or warm-up effects.Previous work has demonstrated that short-term ROM changes can occur following repeated exposure to movement tasks or measurement procedures alone. 4Without controlling for these factors, there is a risk that the magnitude and interpretation of the immediate ROM gains may be overstated, potentially influencing how readers interpret the effectiveness of the intervention.Clarifying whether immediate ROM improvements represent genuine intervention-related responses or short-term measurement effects is essential to avoid over-interpretation of early outcome changes in short-duration exercise studies.We offer this commentary to promote methodological clarity and constructive scholarly dialogue.