How many reps of the tuck skin-the-cat should you do when you are new to the exercise?

Start with 2 to 3 sets of 3 to 4 slow reps, pausing briefly in the inverted German-hang position before reversing back up. Add reps only once the descent is fully controlled with no sudden drop at the bottom.

What if I don't have rings or a bar for skin-the-cat?

Gymnastics rings are the traditional choice since they let the shoulders rotate freely, but a plain pull-up bar works too, just with a bit less freedom of movement. Without either to hang from, this specific shoulder-rotation skill has no good floor substitute, so build shoulder mobility and hanging tolerance first and add it once a bar or rings are available.

What does the tuck skin-the-cat build, and when should you avoid it?

It develops the compression strength and backward shoulder mobility the full straight-body skin-the-cat demands, serving as the entry point into that skill. Avoid it with any shoulder instability or a history of dislocation, since rotating the shoulders through this much range under load stresses exactly that kind of joint.

Intermediate

Tuck Skin-the-Cat

Pulling the knees into a tight tuck shortens the lever so you can learn the backward shoulder rotation of skin-the-cat with far less strain. The abs work hard to initiate the inversion and control the reversal, while the lats and shoulders manage the deep range. It builds the compression and shoulder mobility that the full straight-body version demands. Move slowly and stay well inside your comfortable shoulder range.

Equipment: Pull-Up Bar
Body part: Abs, Lats
Type: Functional, Strength
Browse by muscle: Lower Rectus Abdominals, Latissimus Dorsi
Browse by movement: Core Brace

How to do it

1
Hang from rings or a bar with an overhand grip and set the shoulders down.
2
Pull the tucked knees up and toward the chest to begin the inversion.
3
Continue rotating backward through the shoulders, keeping the knees tightly tucked.
4
Let the body pass through until you reach a compact inverted German-hang position.
5
Reverse the motion under control, using the abs to pull back up to the start.
6
Breathe steadily and never let the shoulders drop suddenly into the bottom.

Tips

Keep the knees glued to the chest to keep the lever short and the movement controlled.
Move slowly through the shoulder rotation and back off if you feel a sharp stretch.
Initiate the roll with the abs, not by throwing the legs over.

Variations

Common mistakes

The knees drift away from the chest mid-rotation, lengthening the lever right as the shoulders are moving through their most vulnerable range.
Throwing the legs over with momentum instead of curling them up with the abs turns a controlled inversion into an uncontrolled drop into the German hang.
The shoulders relax and let gravity finish the rotation in the last few degrees, dropping suddenly into the bottom position instead of arriving there under control.
Skipping straight to rings on the first attempts, before the movement is grooved on a bar, adds ring instability on top of a pattern that's not yet automatic.
The reversal back to the top gets attempted before full range is comfortable in the bottom position, rushing past the position that needs the most familiarity.

Frequently asked

How many reps of the tuck skin-the-cat should you do when you are new to the exercise?: Start with 2 to 3 sets of 3 to 4 slow reps, pausing briefly in the inverted German-hang position before reversing back up. Add reps only once the descent is fully controlled with no sudden drop at the bottom.
What if I don't have rings or a bar for skin-the-cat?: Gymnastics rings are the traditional choice since they let the shoulders rotate freely, but a plain pull-up bar works too, just with a bit less freedom of movement. Without either to hang from, this specific shoulder-rotation skill has no good floor substitute, so build shoulder mobility and hanging tolerance first and add it once a bar or rings are available.
What does the tuck skin-the-cat build, and when should you avoid it?: It develops the compression strength and backward shoulder mobility the full straight-body skin-the-cat demands, serving as the entry point into that skill. Avoid it with any shoulder instability or a history of dislocation, since rotating the shoulders through this much range under load stresses exactly that kind of joint.

Related exercises

Other movements among FitRay's 2,000+ exercises that load the same target muscle — same equipment and level first.

All Abs exercises