[quote]Sentoguy wrote:
[quote]batman730 wrote:
[quote]Sentoguy wrote:
[quote]238 wrote:
Not able to watch the video at the moment, but…
[quote]spk wrote:
making you work harder, making the number of reps go higher. [/quote]
So the harder something is, the more reps of it you can do? If I’m reading this right then why is it that in every other movement the harder it is, the less reps I can do? E.g. if I squat 120 kg I get less reps than if I squat 100 kg.[/quote]
Yeah, I had the same reaction to that point.
Along the same lines, why is it that there are lots of videos of women doing their “1st pull-up” who perform a kipping pull-up, but very few of women doing a dead hang pull-up if kipping pull-ups are harder? Wouldn’t it make sense that if kipping pull-ups were indeed harder than dead hangs, that a whole lot of women would get a dead hang before getting a kipping pull-up? Just as you don’t see any videos of people getting their first pull-up performing a strict muscle-up or butterfly pull-up on rings. Why? Because those are harder variations of pull-ups, so people are going to have to achieve the easier variations first.
Another good counter example would be the fact that when you watch people do max sets of pull-ups, they all kip more the further into the set they go (as they start to fatigue and they therefore look for ways to make the exercise easier to allow them to continue going). If kipping were indeed harder, then you’d expect them to kip less the further into the set they went.[/quote]
Not advocating for kipping or Xfit particularly, however, in terms of WORK (as opposed to exertion): mathematically WORK = FORCE X DISTANCE. So if you must generate x amount of force to get your chin over the bar and you travel y distance in the process you will have done more total WORK if you do 30 kipping as opposed to 10 dead hang pullups as you will have travelled 3x the distance. In fact, you will have done significantly more work, as you will have generated much more force in accelerating yourself to the bar while kipping as opposed to from a dead hang.
Again, it’s the math. FORCE = MASS x ACCELERATION. So if your mass stays constant but you accelerate much faster you have generated more force. Of course, this doesn’t really tell the whole story because you have drastically changed how you are generating that force, thus making it much easier in terms of exertion. However exertion =/= work.
I still prefer dead hangs.
Edited[/quote]
Technically this is true, but that would be like someone doing “cheat curls” that more closely resemble underhand grip power cleans and claiming that since they were able to do three times as many with the same weight that this method was a superior way of curling. And, if by that they simply mean getting the bar from point A to point B as many times as possible with no concern for which muscles got the bar there, then they would technically be correct. But this method of curling still pales in comparison (and is much less impressive from a strength/performance perspective) to strict curling using only the arm flexors to move the weight in terms of strength development for those muscles; which is generally the reason people perform curls in the first place.
[/quote]
Yep, pretty much agree. As I said in my earlier response to Silyak, I was essentially playing Devil’s advocate here as I think dead hangs are generally more valuable for most people. I’ve noticed that xfitters like to toss physics around when explaining their methods/reasoning so I thought I’d give it a go. I agree that the primary point of resistance training is generally not to move weight from A to B any more than the primary purpose of running is transportation.
If your goal was simply to get up to the bar, jumping/kipping is obviously the way to go, but that’s not usually why we do pullups. Like I said, just messing around a little. Dead hangs FTW.