Cataloged Exercises by Primary Muscle Group

PlainExercise shows the distribution of cataloged exercises across primary muscle groups in the Free Exercise Database. Rendered server-side from a live SELECT against the exercises table grouped by primary_muscle.

Research period: 2026-05-17

Compiled byPlainExercise Editorial, Exercise Science Editorial Team · May 17, 2026

Methodology

We queried the PlainExercise exercises table at server render time and pulled the columns muscle, exercise_count. The query ranks records by exercise_count DESC and returns the top 10. Every numeric value rendered on this page derives from a live SELECT against the production exercises table — no figure is hardcoded, and the table refreshes whenever the underlying open datasets (Free Exercise DB and wger.de) are re-ingested.

See the methodology page for the complete ETL pipeline, source vintage, and column lineage.

The ranked top 10

Every row below is rendered from a live SELECT against the 10-row result returned by the query in the frontmatter above. Refresh the page after an ETL run to see the latest values.

#	Primary muscle group	Cataloged exercises
1	quadriceps	148
2	shoulders	127
3	abdominals	93
4	chest	84
5	hamstrings	79
6	triceps	71
7	biceps	53
8	lats	38
9	middle back	34
10	calves	28

Source: Free Exercise DB — Free Exercise Database — JSON catalogue of cataloged strength-training exercises. Values are queried live from the PlainExercise SQLite snapshot at request time; the snapshot is refreshed by the portal ETL pipeline. Free Exercise DB — Free Exercise Database — JSON catalogue of cataloged strength-training exercises. Values are queried live from the PlainExercise SQLite snapshot at request time; the snapshot is refreshed by the portal ETL pipeline.

Findings

Top entity in the ranking

The top-ranked record in this dataset is quadriceps, with a value of 148 on the Cataloged exercises column. The full top-10 set is rendered in the table above. Every value derives from the underlying exercises table; no number is hardcoded into this page. When the Free Exercise DB publishes a revision and our ETL pipeline reingests, the ranking and the prose around it update on the next page load.

Distribution shape

The gap between the top-ranked record (148) and the 10th-ranked record (28) 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-10 cut is summarized in the aggregate context section below and explored in the linked entity profiles.

Aggregate context

Across the full exercises population, the aggregate query returns the following summary statistics. These anchors situate the top-10 ranking against the underlying population: how many records exist in total, what the sum of the ranking column is across all qualifying rows, and what the mean per-record value looks like. The methodology page documents the exact filter applied by the aggregate query (records with null or zero values on the ranking column are excluded). The aggregate row is computed by the same database engine that renders the ranking above, against the same snapshot.

Source provenance

The records in this ranking originate from Free Exercise DB, specifically the Free Exercise Database — JSON catalogue of cataloged strength-training exercises. PlainExercise ingests the source vintage published by the agency, transforms it into a normalized SQLite schema, and serves it from a read-only snapshot. Every render of this page is a fresh SELECT against that snapshot — there is no static export carrying stale numbers, and the edge cache lifetime is bounded by the portal middleware so that a reingested dataset propagates within hours. The methodology page documents the source URL, the vintage date, and the transformation steps applied during ETL.

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

Counts reflect the Free Exercise Database open catalogue, not the universe of all known strength-training exercises. The catalogue emphasizes mainstream gym-based exercises (barbell, dumbbell, cable, machine, bodyweight); it under-represents rehabilitation, gymnastics, Olympic-style movement variations, and specialty-equipment training. Primary-muscle assignment in the catalogue uses the original dataset's classification — many exercises recruit multiple muscle groups, and reasonable practitioners disagree about which is 'primary' (e.g., bench press is classified as chest-primary here but trains triceps and anterior deltoid significantly). Counts should not be read as recommendations — having more cataloged biceps-isolation exercises than glute-isolation exercises reflects the historical emphasis of the bodybuilding-oriented exercise literature, not the relative importance of those muscle groups in a balanced program.

Cataloged Exercises by Primary Muscle Group

Research question

Methodology