Skin the Cat: A Complete Guide From First Rep to Advanced Variations

Quick Intro

Skin the cat, also called the German hang, is a Calisthenics exercise performed by hanging from a bar or rings with the legs and arms both straight, then slowly rotating the body backward through the shoulders until the legs swing under and behind the arms into an inverted hang.

Equipment Needed

Skin the cat can be done on gymnastics rings or a pull-up bar. One apparatus is enough.

Why Skin the Cat Matters

Flexibility is the main demand of skin the cat, since rotating straight legs backward through the arms demands shoulder range well beyond what a simple hang requires. Strength and coordination come with it, reflecting the grip and body control needed to keep the straight-leg position stable through the whole rotation.

When to Do It

This exercise fits naturally into the early part of an upper body or mobility session, once the shoulders are warm but before they’ve taken on heavier pulling or pressing work, since the rotation asks the joint to move through an end-range position best handled while fresh. It also stands well on its own as a dedicated shoulder mobility practice.

• A current or past shoulder dislocation, or general shoulder instability. Rotating through an extended range behind the torso is exactly the kind of motion that can aggravate a joint that already lacks stability.
• Straight-leg rotation attempted before the tucked version feels controlled. Keeping the legs extended adds meaningful leverage on the shoulders that the tucked version doesn’t create, so building comfort there first is worth the extra step.
• A hang that still feels unfamiliar or uncomfortable overhead. Spending time simply hanging with full extension before adding any rotation keeps the early learning curve more manageable.

Getting Ready

Loosen the shoulders first with a minute or two of arm circles, letting the range grow a little larger with each pass. Follow that with one or two calm reps of the tucked rotation, since re-establishing that pattern with bent knees makes the straight-leg version considerably easier to feel out once the legs extend.

The pace of the rotation is what matters most here: this movement carries the shoulder through an unusually deep range of extension, and any added speed turns a mobility drill into a risk for the shoulder capsule.

Step-by-Step Instructions

1. Grip and extend. Take an overhand grip on the bar or rings and hang with both arms and both legs fully straight.

2. Tip into the rotation. Lead with the hips, letting them drop backward and travel underneath the shoulders while the legs stay locked straight and swing along with them.

3. Clear the arms. Keep rotating until the legs swing fully past the arms and settle into the inverted German hang position, the body now facing the opposite way from where it started.

4. Return the same way. Retrace the same arc back to the upright hang, keeping the pace on the way out just as unhurried as it was going in.

How Many, How Often

Controlling the shoulder tension through the whole arc matters more than how many reps get done, since rushing the rotation with momentum trains far less capacity than a slow, deliberate pass builds.

Modifications and Variations

Skin the cat carries one variation, an easier regression.

Easier: Tuck Skin the Cat. Performs the same backward rotation with the knees pulled to the chest, cutting the torque on the shoulders by shortening the lever the legs create.

Progression path: Tuck Skin the Cat leads into Skin the Cat.

Common Mistakes to Avoid

Letting momentum carry the rotation instead of controlling it with the shoulders. Any added speed turns what should be a controlled mobility pattern into a risk for the shoulder capsule, since this range already sits close to the joint’s outer limit. Keeping the whole arc slow protects the joint doing most of the work.

Pushing into the full straight-leg range before the shoulders are ready for it. Forcing the extension before the tucked version feels easy and controlled adds strain to a joint capsule that hasn’t built the range yet. Spending time on the tucked rotation first lets that range develop gradually.

Letting gravity finish the return rather than reversing it deliberately. Dropping quickly back to the upright hang skips the controlled portion of the exercise that builds shoulder strength through the return path. Retracing the arc at the same unhurried pace used going in trains the movement in both directions.

After Your Set

Clasping both hands loosely behind the back and lifting them gently away from the body opens the chest and the front of the shoulders after they’ve spent the whole set in extension. A few slow, deliberate shoulder rolls in the opposite direction afterward help the joints settle back into a comfortable range.

Going Deeper

What separates this from its tucked counterpart is leverage. A straight leg travels a much longer arc through the same rotation, and that added length turns a modest range demand into a considerably larger one on the same joint.

Progress on this movement tends to stall in one specific way: the shoulders’ available range, not grip or pulling strength, decides how far the straight-leg rotation can go, so plenty of upper body strength doesn’t guarantee an easy time here. Dedicated mobility work targeting the overhead and behind-the-body range, done alongside continued rotation practice, is what moves this forward.

Someone who already rotates comfortably with the knees tucked can typically manage a controlled straight-leg pass within a handful of weeks of focused shoulder work, and a fully smooth rotation with a calm pause at the bottom generally follows within another month or two beyond that.

How to Know You’re Improving

Four checkpoints mark progress on skin the cat:

1. Both legs stay locked straight for the entire arc, with no bending at the knees to shortcut the rotation
2. The legs swing cleanly past the arms without any forcing or shoulder strain
3. 5 reps flow at one steady, controlled pace in both directions
4. A brief pause at the bottom of the German hang feels stable rather than shaky

A rep only counts as clean when both legs stay straight and the pace holds steady from the first inch of rotation to the last. Reps add up to progress only once the full range arrives without any forcing.

Muscles Worked

• Latissimus Dorsi (the broad muscle of the mid and lower back, controlling the full backward rotation with straight legs)
• Pectoralis Major (the chest muscle, taken to a deep stretch as the shoulders rotate toward the end of their range)
• Biceps Brachii (the muscle at the front of the upper arm, keeping the elbows locked through the whole rotation)
• Rotator Cuff (the small muscles that stabilize the shoulder joint, holding the joint safe at the extreme of its range)
• Teres Major (a small muscle under the shoulder blade, supporting the shoulder as the arms pass behind the body)

FAQ

Does this require serious pulling strength? Not as much as the straight-leg image suggests. Some strength and coordination are needed, but shoulder flexibility is the leading factor (see Why Skin the Cat Matters above).

Why does straightening the legs make such a difference compared to the tucked version? A straight leg extends the lever the hips rotate through, which multiplies the torque reaching the shoulder even though the rotation pattern itself hasn’t changed.

Is the German hang a different exercise from this one? No. It’s another name for the paused position at the bottom of this same rotation, once the legs have swung fully past the arms.

Can rings replace a bar for this, or the other way around? Yes. Either works, and one alone is enough to hang from (see Equipment Needed above).

What usually holds people back here even when their strength is solid? Shoulder range, more often than raw strength, decides how far the rotation goes, which is why dedicated mobility work tends to pay off more than extra pulling volume (see Going Deeper above).