Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
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©Journal of Sports Science and Medicine ( 2026 )  25 ,  235  -  261   DOI: https://doi.org/10.52082/jssm.2026.235

Research article
ChatGPT Outperforms Personal Trainers in Answering Common Exercise Training Questions
Brecht D’hoe1, , Daniel Kirk2, Jan Boone3, Alessandro Colosio4
Author Information
1 Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
2 Department of Twin Research & Genetic Epidemiology, King's College London, St Thomas Hospital, Westminster Bridge Road, London SE1 7EH, UK
3 Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium
4 Inter-University Laboratory of Human Movement Biology, Université Saint-Etienne, Saint-Etienne, France

Brecht D’hoe
✉ Department of Movement and Sports Sciences, Ghent University, Watersportlaan 2, Ghent, 9000, Belgium
Email: brecht.dhoe@ugent.be
Publish Date
Received: 09-08-2025
Accepted: 18-12-2025
Published (online): 01-03-2026
Narrated in English
 
 
ABSTRACT

Since its launch, the chatbot ChatGPT has gained significant popularity and may serve as a valuable resource for evidence-based exercise training advice. However, its capability to provide accurate and actionable exercise training information has not been systematically evaluated. This study assessed ChatGPT’s proficiency by comparing its responses to those of human personal trainers. Nine currently active level 4 (European Qualification Framework (EQF)) personal trainers (PTs) submitted their most frequently asked exercise training questions along with their own answers to them, and these questions were then posed to ChatGPT (version 3.5). Responses from both sources were evaluated by 18 PTs and 9 topic experts, who rated them on scientific correctness, actionability, and comprehensibility. Scores for each criterion were averaged into an overall score, and group means were compared using permutation tests. ChatGPT outperformed PTs in six of nine questions overall, with higher ratings in scientific correctness (5/9), comprehensibility (6/9), and actionability (5/9). In contrast, none of the responses from PTs were higher than those from ChatGPT for any question or metric. Our results suggest that ChatGPT can be used as a tool to answer questions that are frequently asked to PTs, and that chatbots may be useful for delivering informational support relating to physical exercise.

Key words: Artificial Intelligence, exercise, natural language processing, machine learning, training guidance


           Key Points
  • ChatGPT outperformed personal trainers in answering six of nine exercise training-related questions.
  • Scores were consistently higher for ChatGPT across all metrics measured, including scientific correctness, actionability and comprehensibility.
  • Large language models may be useful tools to support personal trainers and trainees by providing comprehensible and scientifically correct answers to frequently asked exercise training questions.
 
 
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