Exercises by Mechanic and Level
Compound vs isolation counts by beginner, intermediate, and expert tags from the Free Exercise DB extract.
Research period:
Research question
How does the Free Exercise Database distribute cataloged exercises across the mechanic (compound vs. isolation) and difficulty-level axes, and what does the distribution suggest about how the strength-training literature frames progression?
Methodology
This ranking is generated fresh from the PlainExercise dataset each time the page is requested. Records are ranked from highest to lowest and the top 10 are shown. Every number on this page comes directly from the current dataset, no figure is hardcoded, and the ranking updates automatically whenever the underlying open datasets (Free Exercise DB) are refreshed.
See the methodology page for the complete data process, source vintage, and column lineage.
Exercises by Mechanic and Level
Updated automatically as new data is published
The ranked top 9
Every row below reflects the current dataset. Refresh the page after new data is published to see the latest values.
| # | Difficulty level | Mechanic | Cataloged exercises |
|---|---|---|---|
| 1 | beginner | compound | 241 |
| 2 | beginner | isolation | 232 |
| 3 | intermediate | compound | 204 |
| 4 | intermediate | isolation | 62 |
| 5 | beginner | unspecified | 50 |
| 6 | expert | compound | 44 |
| 7 | intermediate | unspecified | 27 |
| 8 | expert | unspecified | 10 |
| 9 | expert | isolation | 3 |
Source: Free Exercise DB, Free Exercise Database, level / mechanic / category field documentation. Values are refreshed automatically whenever the source publishes updated data.
Findings
Top entity in the ranking
The top-ranked record in this dataset is beginner, with a value of 241 on the Cataloged exercises column. The full top-9 set is rendered in the table above. Every value comes directly from the current dataset; no number is hardcoded into this page. When the Free Exercise DB publishes a revision, the ranking and the prose around it update automatically.
Distribution shape
The gap between the top-ranked record (241) and the 9th-ranked record (3) characterizes how concentrated the top of the distribution is. Where the top value is many multiples of the median value of the visible set, the population is highly concentrated, a small number of entities accumulate the bulk of the measured quantity. Where the top and bottom of the visible set are close together, the distribution is relatively flat across the top end. The full distribution beyond this top-9 cut is summarized in the aggregate context section below and explored in the linked entity profiles.
Aggregate context
Across the full population behind this ranking, here are the summary statistics: how many records exist in total, the sum of the ranking metric across all qualifying records, and the mean per-record value. The methodology page documents the exact filter applied (records with null or zero values on the ranking metric are excluded). This aggregate row is computed from the same dataset that powers the ranking above.
Source provenance
The records in this ranking originate from Free Exercise DB, specifically the Free Exercise Database, level / mechanic / category field documentation. PlainExercise ingests the source vintage published by the agency and keeps this page in sync with it, there is no static export carrying stale numbers, and an updated dataset is reflected here within hours of publication. The methodology page documents the source URL, the vintage date, and the transformation steps applied during data processing.
Why this ranking matters
Rankings like this one let a reader scan a population quickly and identify outliers, concentrations, and patterns that warrant deeper investigation. The detail pages linked from each entity in the table above give the full per-entity context: time-series history where available, related metrics from adjacent tables, and links onward to the underlying source records. The methodology page explains how an entity earns inclusion in the dataset and how the ranking column is computed at the source.
What this analysis cannot tell us
Difficulty-level assignment (beginner / intermediate / expert) in the catalogue uses the original dataset's classification, which mixes movement-complexity, coordination-demand, and load-tolerance considerations into a single tag. A reasonable coach might re-classify many entries, overhead press is here classified across multiple levels depending on variation, but coaches at different gyms disagree about whether a strict press is beginner-appropriate or intermediate-appropriate. The mechanic axis (compound vs. isolation) captures whether the movement coordinates multiple major joints or works one joint in isolation; this is a useful programming distinction but not a quality judgment, both mechanics have a place in a balanced program. Heavy concentration of cataloged exercises at the beginner-compound and beginner-isolation buckets reflects the catalogue's emphasis on the foundational movement vocabulary rather than the relative importance of beginner versus advanced training.
Secondary cut from the same source
Cataloged exercises by training category
Sources
- Free Exercise Database (Yuhonas / GitHub) - https://github.com/yuhonas/free-exercise-db
- Original dataset metadata - https://github.com/yuhonas/free-exercise-db/blob/main/README.md
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, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.