Exercise Guides
How PlainExercise reads the Free Exercise DB catalog: tagged inventory versus primary-muscle count, and how each exercise record is labeled.
Open data: exercise-catalog-statistics.csv (Free Exercise DB extract · CC BY 4.0).
According to the Free Exercise DB corpus on PlainExercise, Shoulders is #1 of 18 by tagged inventory (335 records) at primary-count #2 (127) ≠ Quadriceps #1 primary (148 records, tagged #4 at 227).
- Shoulders is #1 of 18 by tagged inventory (335 records) at primary-count #2 (127) ≠ Quadriceps #1 primary (148 records, tagged #4 at 227).
- Guides translate catalog labels; they do not prescribe a program.
- Free Exercise DB (CC0) live extract
How to Read an Exercise Page
A tour of what each field on a PlainExercise detail page means, so you can extract what you need at a glance.
How to Choose the Right Exercise for Your Goal
A practical decision tree for picking movements based on goal, equipment, experience, and injury history.
Building a Weekly Workout Split
Upper/lower, push/pull, full-body, how to pick a split that matches your time, recovery, and goals.
Home Exercise Essentials, What You Actually Need
What equipment to buy (and skip) for a home gym, ordered by value-per-dollar.
Safer Alternatives for Common Injuries
General guidance on training around knee, shoulder, and lower-back pain. Not medical advice.
Progression: How to Know When to Advance
The signals that tell you it is time to add weight, switch exercises, or change your program.
Compound vs Isolation: When to Use Each
The tradeoffs between multi-joint and single-joint exercises, and how to blend them in a program.
Training for Strength vs Hypertrophy vs Endurance
How rep ranges, rest, and volume change depending on whether you want to lift heavier, grow bigger, or work longer.
Methodology
According to the open-licensed Free Exercise DB (CC0), our guides draw on over 870 catalogued movements across 20 muscle groups and 16 equipment types, with reference terminology aligned to NIH/NLM MeSH and CDC physical-activity guidance. Exercise details, muscle mappings, and equipment categories come directly from those datasets, so each claim traces back to its source. See our methodology for the full process.
The aim is plain language: we translate the structured exercise data into guidance a general reader can act on, and where sources differ or update over time, we flag the variation where it appears.
Why PlainExercise Publishes Guides
The exercise data on this site is faithful to its open-licensed sources, but a raw record, force type, mechanic, level, muscle list, rarely explains how to actually train with it. These guides translate the structured data into plain English: how to choose an exercise for a goal, how compound and isolation movements differ, how to progress safely, and how to work around common injuries. Each is anchored to the underlying dataset and to established exercise-science fundamentals, so a beginner can follow it and an experienced lifter can quickly confirm the reasoning.
What You Will Find Here
Every guide focuses on a single, practical question, usually something a visitor might type into a search engine. We anchor specific claims to the underlying dataset or to established exercise-science fundamentals, and we do not invent numbers or quote unreliable secondary sources. If you notice a factual drift or a sentence where our summary disagrees with the source, email the correction and we will update the guide.
Guides Are Not Professional Advice
Reading a guide is a good first step, it orients you to the vocabulary, the process, and the known edge cases. It is not a substitute for talking to a licensed professional. Guides here do not establish a professional relationship, do not constitute advice tailored to your circumstances, and do not account for recent changes that may not yet be reflected in the upstream dataset. Use them to understand what you are looking at and to form better questions to bring to a qualified advisor.
How We Decide What to Write
We pick guide topics by looking at real visitor questions, search queries that land on the site without a good destination, emails from readers asking for explainers, and patterns in the data that deserve a sustained write-up. We favor topics where a short, honest, well-cited guide genuinely helps over topics that merely drive traffic. When we get a topic wrong, we correct it and note the update; when we get feedback that a guide missed an angle, we add a section rather than rewriting from scratch.
Every figure on PlainExercise is compiled from public exercise-science and biomechanics references, no number is typed in by an editor. This page draws directly on the Free Exercise DB catalogue, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology & changelog, or report a data error.