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ChatGPT Outperforms Personal Trainers in Answering Common Exercise Training Questions.

Brecht D'hoe¹, Daniel Kirk², Jan Boone¹

¹Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium.

Journal of Sports Science & Medicine

|February 19, 2026

Summary

This summary is machine-generated.

ChatGPT, a popular chatbot, can provide accurate and actionable exercise advice, outperforming human personal trainers in a recent study. This suggests chatbots may be valuable tools for evidence-based physical exercise information and support.

Keywords:

Artificial Intelligence exercise machine learning natural language processing training guidance

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Area of Science:

Exercise Science
Artificial Intelligence
Digital Health

Background:

The increasing popularity of AI chatbots like ChatGPT presents opportunities for health information dissemination.
However, the accuracy and utility of AI-generated exercise advice require systematic evaluation.

Purpose of the Study:

To assess the proficiency of ChatGPT (version 3.5) in providing evidence-based exercise training advice.
To compare ChatGPT's responses against those from certified human personal trainers.

Main Methods:

Nine personal trainers (PTs) provided common exercise questions and their expert answers.
ChatGPT was queried with these questions, and its responses were compared to PTs' answers.
Evaluations by 18 PTs and 9 topic experts rated responses on scientific correctness, actionability, and comprehensibility.

Main Results:

ChatGPT outperformed human PTs in overall scores for six out of nine questions.
ChatGPT received higher ratings for scientific correctness (5/9), comprehensibility (6/9), and actionability (5/9).
No PT responses surpassed ChatGPT's performance across any question or metric.

Conclusions:

ChatGPT demonstrates significant capability in answering frequently asked personal trainer questions.
AI chatbots show potential as effective tools for delivering informational support regarding physical exercise.