Analysis of the exercise intention-behavior gap among college students using explainable machine learning

IntroductionThe physical fitness of college students is a growing global public health concern. A critical challenge in improving student fitness is addressing the intention-behavior gap–the disconnect between students' intentions to engage in physical activity and their actual behavior.Methods...

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Main Authors: Cui Cui, Jixin Yin
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Public Health
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Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2025.1613553/full
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author Cui Cui
Cui Cui
Jixin Yin
author_facet Cui Cui
Cui Cui
Jixin Yin
author_sort Cui Cui
collection DOAJ
description IntroductionThe physical fitness of college students is a growing global public health concern. A critical challenge in improving student fitness is addressing the intention-behavior gap–the disconnect between students' intentions to engage in physical activity and their actual behavior.MethodsThis study utilized survey data from TikTok-using college students, incorporating variables such as gender, academic grade, health belief perceptions, and planned behavior perceptions. Multiple machine learning models were developed to predict the presence of the intention-behavior gap. The performance of these models was evaluated, and SHapley Additive exPlanations (SHAP) was applied to the best-performing model to interpret feature importance.ResultsAmong the models tested, SHAP analysis revealed that perceived barriers were the most influential factor contributing to the intention-behavior gap. Furthermore, the results indicated that male students in higher academic grades, with fewer perceived barriers and stronger subjective norms regarding physical activity, were significantly less likely to exhibit this gap.DiscussionThese findings suggest that university health promotion strategies should focus on reducing perceived barriers, cultivating a supportive campus environment for physical activity, and optimizing the allocation of physical education resources. Such measures may effectively support the transformation of students' physical activity intentions into consistent, health-promoting behaviors.
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spelling doaj-art-050413ca96334367b25fc21f4c4c78bd2025-08-20T03:13:43ZengFrontiers Media S.A.Frontiers in Public Health2296-25652025-07-011310.3389/fpubh.2025.16135531613553Analysis of the exercise intention-behavior gap among college students using explainable machine learningCui Cui0Cui Cui1Jixin Yin2Department of Sports, Huanghe Jiaotong University, Jiaozuo, Henan, ChinaGangneung Wonju University, Gangneung, Gangwon Province, Republic of KoreaDepartment of Sports, Huanghe Jiaotong University, Jiaozuo, Henan, ChinaIntroductionThe physical fitness of college students is a growing global public health concern. A critical challenge in improving student fitness is addressing the intention-behavior gap–the disconnect between students' intentions to engage in physical activity and their actual behavior.MethodsThis study utilized survey data from TikTok-using college students, incorporating variables such as gender, academic grade, health belief perceptions, and planned behavior perceptions. Multiple machine learning models were developed to predict the presence of the intention-behavior gap. The performance of these models was evaluated, and SHapley Additive exPlanations (SHAP) was applied to the best-performing model to interpret feature importance.ResultsAmong the models tested, SHAP analysis revealed that perceived barriers were the most influential factor contributing to the intention-behavior gap. Furthermore, the results indicated that male students in higher academic grades, with fewer perceived barriers and stronger subjective norms regarding physical activity, were significantly less likely to exhibit this gap.DiscussionThese findings suggest that university health promotion strategies should focus on reducing perceived barriers, cultivating a supportive campus environment for physical activity, and optimizing the allocation of physical education resources. Such measures may effectively support the transformation of students' physical activity intentions into consistent, health-promoting behaviors.https://www.frontiersin.org/articles/10.3389/fpubh.2025.1613553/fullphysical activity promotioncollege studentintention-behavior gapexplainable machine learningfeature engineering
spellingShingle Cui Cui
Cui Cui
Jixin Yin
Analysis of the exercise intention-behavior gap among college students using explainable machine learning
Frontiers in Public Health
physical activity promotion
college student
intention-behavior gap
explainable machine learning
feature engineering
title Analysis of the exercise intention-behavior gap among college students using explainable machine learning
title_full Analysis of the exercise intention-behavior gap among college students using explainable machine learning
title_fullStr Analysis of the exercise intention-behavior gap among college students using explainable machine learning
title_full_unstemmed Analysis of the exercise intention-behavior gap among college students using explainable machine learning
title_short Analysis of the exercise intention-behavior gap among college students using explainable machine learning
title_sort analysis of the exercise intention behavior gap among college students using explainable machine learning
topic physical activity promotion
college student
intention-behavior gap
explainable machine learning
feature engineering
url https://www.frontiersin.org/articles/10.3389/fpubh.2025.1613553/full
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AT cuicui analysisoftheexerciseintentionbehaviorgapamongcollegestudentsusingexplainablemachinelearning
AT jixinyin analysisoftheexerciseintentionbehaviorgapamongcollegestudentsusingexplainablemachinelearning