SOURCE 2026 | Program, Proceedings, and Highlights

Web-Based Information on Primary Ciliary Dyskinesia: A Global Systematic Analysis of Quality, Credibility, and Physical Activity Content Ethan Grant , M. Goutaki, V. Gkatzou, L. Peruque, F. Skinner, K. Eustis * , M. Elkins, H. McNeill, D. Santini, S. Brinkman, M. Biglin * , L. Kelly, L. Siqueira, J. M. Dickinson, A. P. Freire Project Mentor(s): Ana Paula Freire, PT, MSc, PhD Background: Quality of medical information on the internet is seldom reviewed, particularly regarding rare diseases. Primary Ciliary Dyskinesia (PCD) is a rare hereditary disease affecting the individual’s cilia’s ability to beat and effectively move mucus. The quality, credibility, and physical activity (PA) of recommendations present in PCD online resources have not previously been assessed. This study aimed to assess the features of web-based healthcare resources across the globe. Methods: 196 total websites related to PCD from 23 randomly selected countries have been reviewed, examining quality (DISCERN), credibility (JAMA Benchmarks), and physical activity information. Physical activity information presence was assessed, as well as information on frequency, intensity, time, and type (FITT) of PA. Results: Quality of websites exhibited an overall score of 2.5 ± 1.1 on a 5-point scale. The JAMA benchmarks found that of the 196 websites, only 40 (20.5%) met all 4 criteria, and 36 (18.5%) met none. Disclosure was most commonly omitted from publications, appearing only 48 times (24%), followed by authorship, which was only found in 110 websites (56%). Physical activity extractions revealed that 145 (73.98%) websites did not mention PA, and of the 51 (26.02%) that did mention PA, none addressed Intensity. Of the 51 websites mentioned PA, 45 (88.24%) did not specify how to exercise. Conclusion: The quality and credibility of online information resources for PCD are severely lacking. Furthermore, the PA recommendations present on these websites do not include frequency, intensity, time, or type, and most websites do not mention PA at all. Presentation Type: Poster Presentation (May 21, 9:30am–3:00pm) Keywords: Primary Ciliary Dyskinesia, Online Health Information Quality, DISCERN, Physical Activity Recommendations, Rare Disease SOURCE Form ID: 45 Sex Differences in Heart Rate and Rating of Perceived Exertion Over a 90-minute Treadmill Run Isabella Green, N. Herde 1* , R. Pritchett 1 , K. Pritchett 1 , T. Burnham 1 , J. Frank 2 1 Central Washington University, Ellensburg, WA; 2 Brooks Running, Seattle, WA Project Mentor(s): Robert Pritchett, PhD During prolonged exercise, the body experiences progressive physiological and perceptual changes commonly reflected by Heart Rate (HR) and Rate of Perceived Exertion (RPE). Heart Rate serves as a physiological measurement of workload, while Rate of Perceived Exertion (Borg 6-20 scale) is a subjective measurement of intensity. PURPOSE: To examine the difference in RPE and HR between males and females in highly trained recreational athletes over a 90-minute treadmill run at first lactate threshold (LT1). METHODS: Highly trained runners were recruited for this study based on strict training and performance guidelines ( n = 14; 8 F, 6 M). Participants completed two visits. The first visit included a graded treadmill test to determine the first lactate threshold (LT1) and a graded treadmill test to determine V̇O2peak (ml O2• kg - 1• min -1). The second visit consisted of a 90-min treadmill run at LT1. Heart rate (bpm), blood lactate (mmol/L), and ratings of perceived exertion (Borg RPE scale, 6-20) were recorded. RESULTS: No significant differences were found in HR ( p = .849) and RPE ( p = .777) over 90-min run between sexes ( p > 0.05). CONCLUSION: These findings suggest similar physiological (HR) and perceptual (RPE) changes between sexes over a 90-minute treadmill run. Presentation Type: Poster Presentation (May 21, 9:30am–3:00pm) Keywords: RPE, HR SOURCE Form ID: 80

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