Pullovers
Sources and review status
Review pending — this text hasn’t been signed off by a reviewer yet.
Historical reference: its only source is the original reference manual, and some of it may be out of date. Not used for AI answers until re-sourced.
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Shoulder-extension pullover listed for the latissimus dorsi and flagged "not effective" for the chest by the source — but current EMG research finds the opposite: it's primarily a chest exercise, more effective for pecs than lats.
Detail
The pullover is listed as an exercise for the latissimus dorsi via shoulder-joint extension (drawing the arm from a front-horizontal position down to the side). On the chest checklist, pullovers are flagged "(S) (Not effective)" — i.e., not an effective sternal-pec exercise. Pullovers occupy the "stretch" and "contracted" positions of the Positions-of-Flexion lats chart (Seated Row/Pullover). Performed with dumbbells or a Body Masters machine. In the Latissimus Dorsi Training checklist, the cable version of this straight-arm movement (cable lat extension / cable pullover) is called out as a good exercise specifically to reduce biceps involvement — since the elbow stays extended throughout, unlike the pulldown/row family which always recruits the elbow flexors secondarily.
Current research update (2026)
EMG evidence (Marchetti & Uchida 2011 and later work) finds the pullover's
muscle emphasis runs the other way from the source's classification: pectoralis
major (especially the sternal portion) is activated MORE than latissimus dorsi,
not less. It's better described as a chest exercise with real secondary lat
involvement, not a lat exercise that happens to touch the chest — and the "not
effective" flag on the chest checklist doesn't hold up against this evidence.
The straight-arm/reduced-biceps-involvement point for the cable version is
unaffected by this and still holds. See verification_note in this module's
frontmatter.
Key facts
- Current EMG evidence: pectoralis major (sternal portion especially) is activated more than the latissimus dorsi, so the pullover is a legitimate chest exercise with real secondary lat involvement.
- Historically classified (original manual): primary = latissimus dorsi (shoulder extension), secondary = pectoralis major, and flagged "not effective" for the chest. Both points are reversed by the EMG evidence.
- "Stretch"/"contracted" lat positions in the Positions-of-Flexion chart.
- The straight-arm (cable) version is specifically recommended to reduce biceps involvement, since the elbow never flexes.
Connections
- Latissimus Dorsi — secondary mover per current EMG evidence (was listed as primary by the source).
- Pectoralis Major — primary mover per current EMG evidence (the source listed this as secondary and flagged it "not effective").
- Lat Pulldown / Seated Rows — the more reliably lat-dominant alternatives if lat emphasis is the actual goal.
Promoted to spine
Already a structured record in the exercise spine — ex.dumbbell-pullover
(reference/fitness-foundation/spine/chest-iso.json) — modeled with pectoralis
major (sternal) and latissimus dorsi as CO-PRIMARY agonists, both "high"
emphasis. That record already matches the current EMG evidence in this
module's verification_note; it was simply never cross-linked here until now.
Sources
Corrections (1)
- 2026-10-24 — Summary and key facts aligned with the current research update (Phase 3 editorial). Exercise fields now follow the module's own EMG correction: primary pectoralis major, secondary latissimus dorsi (were the reverse); the 'not-effective' caution removed.
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