Diablo Crossfit -- Crossfit Games 2008

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Sports

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• diablo crossfit
• Crossfit Games

[marklind94596]

The kip is used because 1) it is a more powerful movement (it moves the mass more quickly), and 2) it can be repeated rapidly within time bounds.

It's a simple math problem. Consider you and I are doing pullups. I use the kip, and kip my chest to the bar "anyhow" complete 100 of them within 2 minutes. You do some other method (dead hang, for example), and are able to crank out only 30 in that same time frame since they are slower and exhaust your lats and biceps to failure.

[marklind94596]

Who has completed more "work=force*distance" in that 2 minutes (over time)? Simple. It's me. What if you complete the 100, but it just takes you 10 minutes instead of 2? That's fine, but across that 2 minutes, I've expended more Power (work over time).

Of course, if we're doing a PFT for the Marines who do NOT allow kipping pullups, I had better also be training my dead hang pullups or I'll be toast.

We do also train dead hang pullups (some more than others), but again, it's not about pullups.

[SAINTWS6]

While I understand your point, it is still entirely possible to complete a pullup in an explosive manner without resorting to using momentum gained from torqueing your entire body in rapid motions. Obviously, the rules permit any type of pullup, so it's a mute point.

[marklind94596]

There's a lot of talk about this from people who view these kinds of pullups from the outside. It's actually quite a complex argument. You see, we do pullups like this, and it really has NOTHING to do with actual pullups.

Crossfit's goal is to "increase work capacity across broad time and modal domains". That is, we're training the whole person, not just part of a person (traditional training usually refers to 'target muscles', etc.)

[SAINTWS6]

I think that's more or less what I was getting at. These pullups are for me a little wild to even be a kipping pullup. These people are pretty much just swinging to build as much momentum as possible to get up to the required chest touch height. It's also entirely possible to make a pullup explosive without using a kipping style.

[banjax80]

Kipping pullup and strict pullup. Two different movements, two different purposes. Kipping requires more aspects of athleticism than a strict pullup. Strict pullups emphasize strength, which is important. But, so is flexibility, coordination, endurance, and efficiency. True the form on some of these pullups is reckless, but that is a decision made by the individual competitor in this situation. It is definitely not coached by crossfit.

[SAINTWS6]

I'm sorry, but swinging around like a monkey is NOT doing a pullup. You can argue all day about the rules saying you only have to "touch you chest to the bar", but IMO building momentum by swinging your legs around and throwing yourself up there is not a pullup. I think they should have been "strict" pullups. If too many people can't do them from a dead hang, then too dang bad, go quit.