Gorilla Chin/Crunch
Gorilla Chin/Crunch is a intermediate-level compound in the strength category that primarily works the abs. It also recruits the biceps and lats. It is performed with bodyweight.


How to do it
- 1Hang from a chin-up bar using an underhand grip (palms facing you) that is slightly wider than shoulder width.
- 2Now bend your knees at a 90 degree angle so that the calves are parallel to the floor while the thighs remain perpendicular to it. This will be your starting position.
- 3As you exhale, pull yourself up while crunching your knees up at the same time until your knees are at chest level. You will stop going up as soon as your nose is at the same level as the bar. Tip: When you get to this point you should also be finishing the crunch at the same time.
- 4Slowly start to inhale as you return to the starting position.
- 5Repeat for the recommended amount of repetitions.
Muscles worked
Primary muscles in filled badges, secondary in grey. Tap for more exercises per muscle.
Tips and common mistakes
- •Keep your core braced and your spine neutral throughout the movement.
- •Add load only once you complete all reps with good form — progressive overload.
- •Initiate the pull from the target muscle rather than jerking with body momentum.
- •Prioritize full range of motion over heavy weight with partial reps.
Sets and reps
For hypertrophy: 3–4 sets × 8–12 reps with 1–2 reps in reserve (RPE 7–9) and 1–2 minutes rest. For strength: 3–5 × 4–6 with longer rest.