How we create our content
EresFitness is a training app founded by Antonio Vladimir García Álvarez, a certified personal trainer with over 7 years of experience. Exercise pages, guides and blog articles are published under the EresFitness brand and follow these principles.
What we publish
Exercise pages with video, muscles worked and step-by-step technique; muscle group guides; ready-to-use routines in the app; and training articles. Everything is informational content designed to help you train with good form, whether you are a beginner or advanced.
How we produce it
We choose topics based on what people who train search for most, and we prioritize basic, safe exercises. We explain technique in clear steps, in plain language, and pair every exercise with a video.
Sources and evidence
When a claim depends on research, such as which exercise activates a muscle the most, we rely on studies published in scientific journals and on systematic reviews, and we cite the sources at the end of our guides. We only use a study for what it actually measured.
Expert review
Our exercise guides are reviewed by a certified personal trainer before they are published, and we say so next to the content.
Tools and artificial intelligence
We use digital tools, including artificial intelligence, to support research, translation and writing. No content is published without being reviewed by a person.
Updates and corrections
We review our content when new evidence appears or when we find a mistake. If you spot something that needs fixing, write to us from the contact page.
Important notice
Our content does not replace an assessment by a doctor, a physical therapist or an in-person trainer. If you have an injury or a health condition, or you are pregnant, talk to a professional before starting an exercise program.