A Randomized Trial Assessing the Effect of Exercise on Residents' Podcast Knowledge Acquisition and Retention.
Academic medicine : journal of the Association of American Medical Colleges(2023)
Abstract
PURPOSE:Podcasts are commonly used by residents as part of their learning, with many listening concomitantly with other activities (e.g., driving and exercise). The effects of exercise on learning are controversial, with some suggesting potential benefit and others suggesting impaired learning. This study examined whether exercise influences knowledge acquisition and retention among resident physicians listening to a podcast while exercising versus those with undistracted listening.
METHOD:This multicenter, randomized, crossover trial assessed emergency medicine residents across 5 U.S. institutions from September 2022 to January 2023. Residents were randomized to a group that listened to one 30-minute podcast while seated or a group that listened to a 30-minute podcast while engaging in 30 minutes of continuous aerobic exercise, with stratification by site and postgraduate year. Within 30 minutes of completing the podcast, they completed a 20-question multiple-choice test. They subsequently crossed over to the other intervention and listened to a different 30-minute podcast followed by another 20-question test. Each podcast focused on emergency medicine-relevant journal articles that had not been covered in journal club or curriculum at any sites. Residents also completed a 40-question delayed recall test with separate questions on both podcasts at 30 days.
RESULTS:Ninety-six residents were recruited for the study, with 95 (99.0%) completing the initial recall portion and 92 (97.0%) completing the delayed recall tests. No statistically significant differences were found between the exercise and seated cohorts on initial recall (74.4% vs 76.3%; d = -0.12; 95% CI, -0.33 to 0.08; P = .12) or delayed recall (52.3% vs 52.5%; d = -0.01; 95% CI, -0.22 to -0.19; P = .46).
CONCLUSIONS:Exercising while listening to podcasts did not appear to meaningfully affect knowledge acquisition or retention at 30 days when compared with listening while seated and undistracted.
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