Just to veer slightly off topic- a question for exile. So do push ups not totally obliterate the pectorals in the way a chest workout (with weights) would?
No, they don't—unless you augment your own upper body weight by adding a `passenger' of respectable weight, or (something I used to do for fun), with a couple of wheels sitting on your back, kept in place by the friendly gym staff while you do your pushups.
Think of a pushup as a full-range upside-down bench press using your own (or augmented) upper body weight. Then yes, if you use additional weight that adds up to a significant increase over your own body weight (that extra 90lbs, for example), you will be getting a major increase in your workout.
But look, there's a point here that I think needs to be addressed, and it may not be a popular one in the context of this thread involving a challenge predicated on a `proper military' form of the pushup. Think of it this way...
• Assume that the purpose of an upper body workout is to increase total upper body strength (not necessarily true, but a reasonable starting point, no?)
• Consider the well-documented fact of muscle physiology that the body will increase muscle mass only in response to serious discomfort and limitation of capability when all available strength resources are being utilized (i.e., if you've got something left in reserve, then no matter how much effort you expend, you will not experience hypertrophy; see Sisco and Little's books for the literature on the exercise physiology experiments that document this point).
• Consider also the fact that since a full range rep, such as a `proper military pushup' demands, takes you into leverage ranges which force you to max out on weights that are less than you can lift if you restrict your workout to your biomechanically optimal range (in a bench, say, the top 3 or 4 inches of your benching range), so that you are not lifting the maximum weight that your fully recruited neuromuscular resources would allow you to lift, you wind up gaining no additional lean muscle mass from such reps (again, Sisco and Little cite evidence to show that the body will simply `pull the plug' on a weight that cannot be lifted do to excessive `mechanical disadvantage', as the engineers would say, even if this weight is far within your abilities if you can access it in a range of motion which gives you optimal leverage).
• It follows that doing `proper' pushup reps (therefore full range reps) will not allow you to augment your normal pushup weight nearly as much as a restricted range pushup (i.e., you will not be able to add as much weight to your back, by balance wheels or having cooperative assistants sitting on your back, as you would doing only the top 3 inches or so of the pushup rep), and therefore—this is the payoff—doing such pushups, while it may provide a usefule measure of training success, is not an efficiet training method.
Now, if it's just a matter of putting unaugmented upper body weight through its paces, none of this is an issue; right now, I can do 100 full range pushups in less than 2 minutes, but doing that does me little actual good, because it doesn't increase my lean muscle mass, which is what I'm always primarily interested in. In other words, my own body weight isn't enough to challenge my physiology to add more muscle, period. You might say, yes, that's all very well for you, but what about people who can't shift their own body weight over a full rep range that many times in that time frame? And my response would be, there's a much faster way to do it. Do limited range reps in a power rack with 50–100 more than your body weight for six weeks, and it's very likely that at the end of that time, you'll be able to do 100 full-range reps at your own body weight with relative ease.
Definitely by Christmas.
I'm not trying to be a wet blanket, really; I think setting this kind of goal for onesself is a great thing, in fact, is the
only way forward—the secret of life, as we get older, is, unfortunately,
march or die. We have to keep annexing new ground, because our biology is trying to get us to shut down after our mid-thirties, and the only way we can fight that is very aggressively, by taking on projects such as this. I just think that the value of the 100-pushup test is as a
benchmark, rather than as a training regime. For the latter, there are vastly more effective approaches, though, as I say, they take you into the... um,
discomfort zone... more than you probably want to be there. But the good side is, over time, you find your tolerance for that kind of discomfort increases somewhat, enough to keep you in the game.
It took me a very long time to do push ups properly during class. I would avoid putting too much strain on the pecs during them- and I did this all on purpose!!! I was always worried about over training the pectorals, and preferred to focus on it's development through my chest workout about halfway through the week. Then at the tail end of the week (after the chest workout) I would avoid putting any strain at all on the pecs during pushups, for fear of undoing my hard work with the weights.
You can't really overtrain the pecs with pushups. Overtraining is a very specific thing; and on the whole, overtraining is overworked as a hazard. The deal on overtraining is, it consists of taxing your resources to the point where you are running a constant deficit, without ever giving your system a chance to recover physiologically. Very few people do this, or are
capable of sustaining the discomfort level necessary to do this. I'm a bit of a fanatic about high-intensity training, yet I can safely say that in the eleven or so years I've been running intervals and doing various H.I.T. weightlifting routines, I've never once been in an overtraining mode. The thing is, you can't overtrain for muscle growth by doing things that implicate only endurance—and if you train weights properly, your pushups will be an endurance exercise for your pecs, not a strength exercise. So don't worry about overtraining. If you do pushups twice a week for extended numbers, you should be fine.
I am not so bad now, but I always feel like I shouldn't be doing so many pushups in addition to to a chest workout each week!!! But I just give them all I have now, and love them!!!
Well, that's probably true, but the point is, if you're doing a heavy free weight routine for pecs, you simply deplete your available strength resources by doing pushups, resources you need for your proper chest workout. Definitely you can tire yourself out doing pushups, but really your pectoral muscle growth will come from your free weight barbell bench press exercise at greater than your body weight. So it makes sense to hold off on the pushups while you're doing the free weights, simply so you don't tire yourself out. The point is, in line with what I was saying before, overtraining would involve your doing your high intensity routine sooner than would allow full recovery; this will put you in a kind of `negative numbers' in training which is a lot nastier than simply being overfatigued. Full recovery is essential before muscle group—`compensation' in weight-training jargon—takes place.
But there's no harm in every so often trying to knock out a set of 100 or so pushups just to see how you're getting on. If you can do limited range benches at 50 lbs or more above your body weight, you're strong enough that a few pushups isn't going to seriously compromise your strength utilization.
As for the 100 pushups by XMas. Very possible! Although I've never counted my max. I know I can do 60 in a row. I accept the challenge to add 40 more!!!
I think 100 continuous pushups is a good check of your progress—a benchmark, as I say. But for long term, serious gains, don't overlook the advantages that that power rack in the corner of your gym can give you (or the dipping stand, where you can do short-range, heavily weighted dips safely...)