The IPPT website says that the chin-up test is a test of “muscular strength and endurance of the upper limbs”. True. But it’s also more than that as you will find out.
The chin-up actually tests the entire upper body. (And even the lower body because it has to be kept stable for maximum performance).
Ok, some definitions before we start. We are going to call palms facing towards us grip chin-ups and palms facing away from us, pull-ups. If you have one of those chin-up bars with palms facing toward each other, that’s called a neutral grip.
A chin-up bar is essential for chin-up training. I know this sounds obvious, but like other IPPT stations, the chin-up is not only an exercise, it is also a test. And we do need to train in a manner specific to the test itself, especially as we get closer to the test date.
The chin-up (and all its grip variations) is of course an awesome exercise in itself. It trains just about every muscle in the upper body. Conversely, all the muscles in the upper body need to be strong in order to do well at chin-ups.
Here is the list of upper body strengths needed to perform chin-ups well. Just like the proverbial chain, any weakness in these muscles will impede your performance of the chin-up.
Starting from the hands…
Hands: Static crushing grip strength (there are several types of hand grip strength) and strength endurance.
Forearms: Static (no movement) and Dynamic (with movement) strength and strength endurance.
Upper Arms (Primarily the bicepss and the brachialis, the arm flexing muscles but also the brachio-radialis and pronator teres): Dynamic strength and strength endurance.
Back Muscles (Latissimus, Trapezius, Rhomboids): Dynamic Strength and strength endurance, and for the rhomboids and traps, static strength and strength endurance as well.
Core Muscles: Static strength endurance
That’s just about all the muscles in the upper body save the pectorals and the shoulders (which actually do have a stabilizing effect as well).
Oh yeah, in case it’s not obvious, being overweight will be a big disadvantage when it comes to performing chin-ups so get your nutrition in check if you want to progress.