Who is behind these guides
Entrenador Personal 24 publishes evidence-based fitness guides for a Spanish and, now, English-speaking audience. The content is reviewed by Rubén and grounded in one simple rule: every practical claim is tied to peer-reviewed research, and we take no sponsorships — if we recommend something, it is because the evidence supports it.
Method. Each guide leads with the answer and the exact numbers, links its sources (PubMed), and is written and checked by a human. We update figures as the research and the market change, and we date them.