Effects of a Personalized Fitness Recommender System Using Gamification and Continuous Player Modeling: System Design and Long-Term Validation Study.

JMIR Serious Games · 2020 · PMC7708084 · PMID 33200994

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a strong trendno p-value reported

The popularity of computer games and their engaging nature has created a strong trend to use games for nonentertainment purposes [ 5 ].

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.