IRONPACK

Chin-Up

Muscles worked: Back, Biceps (assisted by forearms).

Chin-Up start position
START
Chin-Up finish position
FINISH

How to do it

  1. Grab the pull-up bar with the palms facing your torso and a grip closer than the shoulder width.
  2. As you have both arms extended in front of you holding the bar at the chosen grip width, keep your torso as straight as possible while creating a curvature on your lower back and sticking your chest out.
  3. As you breathe out, pull your torso up until your head is around the level of the pull-up bar.
  4. After a second of squeezing the biceps in the contracted position, slowly lower your torso back to the starting position; when your arms are fully extended.
  5. Repeat this motion for the prescribed amount of repetitions.

Coaching cues

The two cues IronPack shows on this exercise's card mid-workout:

Logging it

IronPack suggests working in the 5 to 10 rep range, progressing in 2.5 kg jumps when you own the top of the range. Bodyweight movement: log added weight only, and your records account for your logged bodyweight. Records are tracked automatically at every rep count from 1 to 12. Check your estimated 1RM from any hard set.

Related exercises

Track the chin-up properly

IronPack logs every set, tracks your records at every rep count, shows these form photos mid-workout, and turns the training into a card game you play with your mates.

Get IronPack free on the App Store
Free download, iPhone. Currently on the New Zealand App Store, wider rollout to follow.

Photos and steps: free-exercise-db (public domain). Cues, muscle weighting and logging guidance are IronPack's own app data. Last generated 2026-07-17.