Triceps beginner isolation e-z curl bar

EZ-Bar Skullcrusher

A beginner isolation movement that trains the triceps with an EZ curl bar.

Force Type

Push

isolation

Difficulty

Beginner

isolation

Variations

0

equipment swaps

Muscles

2

primary + secondary

The verdict

EZ-Bar Skullcrusher has 4-step instructions, documented to a similar depth as most of the 71 triceps exercises PlainExercise catalogues.

Ranked against the 71 triceps exercises PlainExercise currently catalogues, not the full exercise-science literature.

Catalog lens

Two ways this record sits in the source corpus

These are placement measures for the documented record, not a score for exercise quality, safety, or suitability.

Instruction steps

#439 of 868

4 numbered source steps; the longest instruction list ranks #1.

Instruction text

#626 of 868

A separate character-length placement prevents step count from standing in for explanatory detail.

How PlainExercise computes exercise placement

Triceps

EZ-Bar Skullcrusher is a beginner isolation movement that trains the Triceps along with forearms. It requires an EZ curl bar. There are 0 known variations and 8 peer exercises that target the same primary muscle.

  • 1 of 9 exercises targeting the Triceps
  • Level: beginner

PlainExercise cross-links 0 variations and 8 peer exercises sharing the same primary muscle.

What the EZ-Bar Skullcrusher Data Reveals · DOC · PUSH/ISOLATION

EZ-Bar Skullcrusher opens on mechanic class: ISOLATION push work for triceps with 1 catalogued assistant, joint involvement separates this page from isolation peers.

4 steps land in the middle third (4–5) of the catalogue, enough detail to compare form without the longest upstream essays.

EZ-Bar Skullcrusher is classified as a beginner-level isolation movement with a push force profile, primarily training the Triceps with secondary engagement of the forearms. The canonical form requires an EZ curl bar in the strength category. Within the triceps cohort, 9 catalogued movements share the primary target; no alternate-equipment variations are catalogued yet.

Context matters: taxonomy (level, mechanic, force, musculature, equipment) does not account for individual biomechanics, joint history, or recovery. Common-mistake framing below is derived from classification fields, not case-specific coaching. Not medical or personal-training advice. Consult a physician or certified trainer before starting, especially with injuries, cardiovascular conditions, recent surgery, or pregnancy.

Exercise profile

Profile attributes for EZ-Bar Skullcrusher
Attribute Value
Difficultybeginner
Mechanicisolation
Forcepush
Equipmente-z curl bar
Categorystrength
Primary muscleTriceps
Secondary muscles1
Variations available0

Source: Free Exercise DB (CC0); profile derived per exercise record.

EZ-Bar Skullcrusher catalog footprint

Among 71 exercises whose primary muscle is triceps, EZ-Bar Skullcrusher ranks #18 by catalogued variation count (0 listed heres). The upstream file attaches 2 images to this slug. See the step-count ranking for triceps for peer documentation depth.

Muscles worked

According to the Free Exercise DB classification, EZ-Bar Skullcrusher trains the triceps as the prime mover, with 1 muscle assisting. The source classifies muscles as primary or secondary, it does not measure activation, so we show involvement, not percentages.

Prime mover Triceps
Also worked (1)
forearms
Level: beginner Mechanic: isolation Force: push

Source: Free Exercise DB primary/secondary muscle classification. Involvement, not measured activation, actual recruitment varies by load and form.

Intensity context

For reference, here is where common activities sit on the MET intensity scale. EZ-Bar Skullcrusher does not have a measured MET in the source data, its intensity depends on the load and effort you use. Estimate calories for any activity with the calorie calculator.

MET Intensity Zones, Exercise Intensity Chart Horizontal bar chart showing how six common exercises map to four MET intensity zones: Light (1-3 MET), Moderate (3-6 MET), Vigorous (6-9 MET), and Very Vigorous (9+ MET). Walking at 3.5 MET falls in Moderate; Jump Rope at 12.3 MET reaches Very Vigorous. Light Moderate Vigorous Very Vigorous 0 3 6 9 12 15 MET (Metabolic Equivalent of Task) Walking 3.5 Cycling 6.8 Jogging 7 Swimming 9.8 Jump Rope 12.3 Light (0-3 MET) Moderate (3-6 MET) Vigorous (6-9 MET) Very Vigorous (9-+ MET)

MET values from the Compendium of Physical Activities (Ainsworth et al., 2011). A general reference scale, not a rating of this specific movement.

How to do it

  1. Using a close grip, lift the EZ bar and hold it with your elbows in as you lie on the bench. Your arms should be perpendicular to the floor. This will be your starting position.
  2. Keeping the upper arms stationary, lower the bar by allowing the elbows to flex. Inhale as you perform this portion of the movement. Pause once the bar is directly above the forehead.
  3. Lift the bar back to the starting position by extending the elbow and exhaling.
  4. Repeat.

Common mistakes

  • Rushing through reps before the pattern is grooved - at this stage, a slow, controlled tempo (2-3s down, 1-2s up) on EZ-Bar Skullcrusher teaches the nervous system the movement far faster than speed does.
  • Cutting the range of motion short - moving the triceps through its full safe range on EZ-Bar Skullcrusher is what most reliably separates effective reps from wasted ones.
  • Using momentum instead of muscle, isolation movements like EZ-Bar Skullcrusher reward strict form. If you're swinging the weight, it's too heavy.
  • Flaring elbows excessively on push movements, tucked elbows protect the shoulder joint and transfer more force into the target muscles.
  • Breathing out of sync with the lift on EZ-Bar Skullcrusher - brace and inhale during the lowering phase, exhale on the exertion, especially important with an EZ curl bar where control matters most.

Who this is for

  • People new to resistance training who want to build a foundation in the movement pattern
  • People who want to train the Triceps and secondarily forearms
  • People who have access to an EZ curl bar

Who this is NOT for

  • People hunting equipment swaps, PlainExercise lists 0 catalogued variations for EZ-Bar Skullcrusher; browse 8 peer triceps exercises for alternate patterns instead.
  • Anyone with acute pain in the joints or muscles involved, pain is a stop signal, not a soreness signal
  • People with unresolved injuries in the loaded joints, seek clearance from a physical therapist first
  • Anyone with a recent surgery, cardiovascular limitation, or pregnancy complication without physician clearance

Progression path

Once EZ-Bar Skullcrusher feels comfortable with your current load, progress by (a) adding reps until you can complete 12+ per set, (b) increasing resistance by 2.5-5%, (c) moving to harder variations such as single-limb or longer lever versions, and eventually (d) stepping up to intermediate-level movements that train the same muscle.

Safety notes · E-Z-CURL-BAR · PUSH/ISOLATION · FLOOR

  • On PUSH/ISOLATION triceps work, warm up 5–10 minutes before loading EZ-Bar Skullcrusher; keep first sets light until the path feels automatic.
  • Sharp or joint pain is a stop signal. Muscle soreness during sets is normal; pain is not.
  • Beginners on E-Z-CURL-BAR gear: cut volume before cutting form, drop a set rather than rush reps.
  • General information only. Consult a physician or certified trainer before starting any new exercise program.

Nationwide exercises with similar documentation depth

Two Free Exercise DB peer sets for EZ-Bar Skullcrusher, drawn across all muscles (not the triceps-only related list below). Each metric produces a different neighborhood.

Other exercises that target the Triceps.

See all Triceps exercises.

Using the ez-bar skullcrusher

A beginner isolation movement for the triceps - here's how to put it to work.

  • Train the triceps 2–3 times a week with 48+ hours between hard sets; pair this with other triceps movements for balanced development. All triceps exercises
  • Match the load and rep range to your goal, strength, size, or endurance each call for a different scheme. Strength vs hypertrophy
  • As an isolation movement, use it to target the triceps directly after your compound lifts. Compound vs isolation

Form before load. If a movement causes sharp or joint pain, stop and substitute a safer alternative, this is general information, not medical or training advice.

Source: Free Exercise DB (CC0) open exercise catalogue, 2026.

Exercise composition and corpus terciles computed by PlainExercise from catalogued records; see the methodology page.

Disclaimer: General information only. Consult a physician or certified trainer before starting any new exercise program.

Data as of: July 2026 (last ingest from source)