middle back strength

One Arm Chin-Up

An expert compound movement that trains the middle back with other equipment.

Force Type

Pull

direction of effort

Difficulty

Expert

training level

Variations

0

equipment swaps

Muscles

4

primary + secondary

The verdict

One Arm Chin-Up has 7-step instructions, among the most thoroughly documented of the 34 middle back exercises PlainExercise catalogues.

Ranked against the 34 middle back 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

#38 of 868

Most thoroughly documented

Numbered source steps, ranked across every documented exercise.

Instruction text

#90 of 868

Most thoroughly documented

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

How PlainExercise computes exercise placement

One Arm Chin-Up vs every catalogued exercise by instruction-text length

Where this record's instruction-character count sits among all 873 Free Exercise DB exercises with instructions, not a rating of the movement itself.

1,075 90th of 873 higher than 783 of 873 exercises

All exercises, banded by instruction-text character count

Each bar is a band; taller bars hold more exercises. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source Free Exercise DB · 2026-07-10

One Arm Chin-Up is documented from the Free Exercise DB (CC0) extract, last ingested July 2026. Classification, muscle roles and instruction text are source facts; the placement and cohort measures on this page are computed by PlainExercise and are not a rating of the movement.

What the One Arm Chin-Up Data Reveals · DEEP · PULL/COMPOUND

One Arm Chin-Up stands out on force direction, the first filter on this record.

Longer step lists usually mean finer setup cues, not a harder movement by themselves.

Across 34 catalogued middle back movements, the average instruction record is 676 characters and 4.2 steps; 22 of those (64.7%) clear the same ≥500-character rich bar used here. This page ranks #6 of 34 by instruction-character length (1.59× the cohort average).

Among the 122 exercises that also use other equipment, average instruction length is 535 characters; 5 of those peers are longer than this record. Equipment-matched peers are the honest comparison when you are choosing a substitute implement for the same pattern.

Other well-documented middle back movements (same ≥500-character bar):

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.

One Arm Chin-Up catalog footprint

Among 34 exercises whose primary muscle is middle back, One Arm Chin-Up ranks #17 by catalogued variation count. The upstream file attaches 2 images to this slug. See the step-count ranking for middle back for peer documentation depth.

Muscles worked

The Free Exercise DB classifies each muscle as primary or secondary. It does not measure activation, so we show involvement, not percentages.

Prime mover middle back
Also worked (3)
biceps forearms lats

Source: Free Exercise DB primary/secondary muscle classification. Actual recruitment varies by load and form.

Intensity context

For reference, here is where common activities sit on the MET intensity scale. One Arm Chin-Up 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. For this exercise, start out by placing a towel around a chin up bar.
  2. Grab the chin-up bar with your palm facing you. One hand will be grabbing the chin-up bar and the other will be grabbing the towel.
  3. Bring your torso back around 30 degrees or so while creating a curvature on your lower back and sticking your chest out. This is your starting position.v
  4. Pull your torso up until the bar touches your upper chest by drawing the shoulders and the upper arms down and back. Exhale as you perform this portion of the movement. Tip: Concentrate on squeezing the back muscles once you reach the full contracted position. The upper torso should remain stationary as it moves through space and only the arms should move. The forearms should do no other work other than hold the bar.
  5. After a second on the contracted position, start to inhale and slowly lower your torso back to the starting position when your arms are fully extended and the lats are fully stretched.
  6. Repeat this motion for the prescribed amount of repetitions.
  7. Switch arms and repeat the movement.

Common mistakes

  • Letting tempo drift under heavy load - even at advanced weights, a controlled One Arm Chin-Up rep (2-3s down, 1-2s up) still outperforms a rushed one for muscle tension and joint safety.
  • Cutting the range of motion short - moving the middle back through its full safe range on One Arm Chin-Up is what most reliably separates effective reps from wasted ones.
  • Treating a compound lift like an isolation movement - One Arm Chin-Up recruits multiple joints; bracing the core and engaging stabilizers matters as much as the prime movers.
  • Shrugging the shoulders up toward the ears on pull movements, keep shoulder blades down and back to load the correct muscles.
  • Breathing out of sync with the lift on One Arm Chin-Up - brace and inhale during the lowering phase, exhale on the exertion, especially important with other equipment where control matters most.

Who this is for

  • Experienced trainees who can load the movement safely and have mastered the progression ladder below
  • People who want to train the middle back and secondarily biceps, forearms
  • People who have access to other equipment

Who this is NOT for

  • People hunting equipment swaps, this record has none to offer; browse the peer middle back exercises for alternate patterns instead.
  • Anyone with acute pain in the joints or muscles involved, pain is a stop signal, not a soreness signal
  • Complete beginners, start with the progression ladder below and build the pattern before loading it
  • Anyone with a recent surgery, cardiovascular limitation, or pregnancy complication without physician clearance

Progression path

At this stage, progress comes from refining technique, reducing rest between sets, and periodizing intensity across training cycles rather than chasing heavier loads.

Safety notes · OTHER · PULL/COMPOUND · CEILING

  • Expert PULL compound pattern: prep the loaded joints specifically for One Arm Chin-Up, not only general cardio, before working weight.
  • Sharp or joint pain is a stop signal. Discontinue any set that compromises joint position under load.
  • At DEEP documentation depth (1,075 chars), progress load only after the 7-step sequence stays clean at the prior weight.
  • General information only. Consult a physician or certified trainer before starting any new exercise program.

Curated workout appearances

One Arm Chin-Up appears in 2 of the 186 curated workout routines on this site.

Nationwide exercises with similar documentation depth

Two Free Exercise DB peer sets for One Arm Chin-Up, drawn across all muscles (not the middle back-only related list below). Each metric produces a different neighborhood.

Using the one arm chin-up

Three ways to put it to work.

  • Train the middle back 2–3 times a week with 48+ hours between hard sets; pair this with other middle back movements for balanced development. All middle back exercises
  • Match the load and rep range to your goal, strength, size, or endurance each call for a different scheme. Strength vs hypertrophy
  • As a compound lift, this trains several muscles at once, anchor your session around it before isolation work. 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)