1rm...

[Scarface30]

I thought about this in the gym yesterday, and it may be a dumb question with an obvious answer, but say you have two different people that have the same squat 1RM of 225lbs. Does that mean their 6RMs, 10RMs, etc... would be the same also? Or would weight matter, as in maybe one person weighs 160, while the other weighs 220.

Or does this question have the obvious answer I think it does...

 

[Ben dur]

well

let me give you an example

thursday i maxed out on my deadlift
i lifted 455lbs

my buddy Ryan can also lift 455


ryan weighs about 170 and he is about 5'9"
i weigh a little more ~176-178 and am about 5'11"

our 1rm is verrrrry close if not equal

however
when we lift lower weight
he can almost always do more reps than i

for example 315 he repped 10x for 3 sets
i however could only do 6x 6x and 5x

interesting eh?

is this along the lines of your question?

 

[Double D]

People may train differently all the time then lay under 225, one may do it for 10 and the other for 8 and their max may still be the same. WHen you get upwards of 10 reps I think it has alot to do with endurance. For instance I do 405 for a 1rm, but there are some days I can only do 315 for 7 then others I can do it for 12. Wierd huh?

 

[Ben dur]

People may train differently all the time then lay under 225, one may do it for 10 and the other for 8 and their max may still be the same. WHen you get upwards of 10 reps I think it has alot to do with endurance. For instance I do 405 for a 1rm, but there are some days I can only do 315 for 7 then others I can do it for 12. Wierd huh?

i hate you

 

[Scarface30]

Ahh, gotcha.

Makes sense, but at the same time strange. I guess like Malley said it has a lot to do with endurance/someone's work capacity.

And if you're wondering, what I thought was the obvious answer was wrong.

 

[SkinsFan21]

Im sorry if your question has already been answered, but to make a long answer short??? It doesn???t matter what your 1rm is. Ignore those on-line calculators; what u can lift is what you can lift. If you guys really wanna test each other, yall are strong enuff to do a 225 max out comp. Me and my buds do that every once in a while. If yall try that lemme know how that works out.

 

[Built]

Another factor that can tie into this is the state of your diet. While cutting, your 1RM may not change all that much - but your rep range on higher volume work will suffer bigtime unless you drop the weight. Add the calories back and your work capacity will increase in short order.

 

[readyformore]

lol when i used to bench 300 pounds as my one rep max i could barely bench press 205 like 8 times.. i can lift it now 4 times and my max is no where near 300 lol it all depends on the person and there stamina and how much energy they have ect ect

 

[Gazhole]

Some people have very poor maximal strength in certain lifts aswell.

For example, i can get 3 reps at 154lbs on Military Press fairly easily, but it i add even 5 lbs to that, i can't get it off my shoulders, no matter what the calculations say i SHOULD be able to lift.

 

[P-funk]

The further away from the 1RM you go on percentage charts, the less accurate they are. A variety of factors make that so.

patrick

 

[stepaukas]

if your after being overall fit, why not train for both? 1 day a week do te very heavy stuff, four or five days later do the high rep stuff..
i remember years ago reading an article on steve reeves. sometimes in his training he would do half his body weight for max reps.
if he weighed 220#, he did 110# for military presses, 110# for benches etc..
and he said when he did the leg presses, he was on there for lots of minutes..
very very hard training. gotta shock the body and mix it up he said.
i dont think hardly any of us do this for a living. its personal goals and a hobby to stay fit..
we all have to punch the time clock tomorrow morning..why not experiement.

 

[Scarface30]

The further away from the 1RM you go on percentage charts, the less accurate they are. A variety of factors make that so.

patrick

That's another thing I was wondering about, because on certain things, like hang cleans for example, I "calculated" 60% of my 1RM (with an online calculator) for a certain amount of reps, but it was definitely WAY too heavy.

What sort of factors are we talking about? Malley, Built, Gaz, etc.. gave some reasons, but what are some of other major factors? I know that's a broad question, but I'm just interested in knowing some for the sake of knowing.

 

[T_man]

The CNS also comes into play. There's so many variables.
Speed of reps, form, technique, arm/leg length, past training, ATP recycling speed etc etc etc

 

[gtbmed]

What type of factors come into play?

Just my guess, but the CNS is a huge factor. Your body's proportions and movement patterns also play a role IMO. Another is your body's ability to deal with lactate buildup/muscular fatigue.

 

[P-funk]

That's another thing I was wondering about, because on certain things, like hang cleans for example, I "calculated" 60% of my 1RM (with an online calculator) for a certain amount of reps, but it was definitely WAY too heavy.

What sort of factors are we talking about? Malley, Built, Gaz, etc.. gave some reasons, but what are some of other major factors? I know that's a broad question, but I'm just interested in knowing some for the sake of knowing.

- individuality in muscle fiber type percentage
- individuality in muscular fatigue
- variations between energy system demands
- nutrition
- training program
- residual fatigue from previous days of lifting
- adaptation to specific demands of training

lots of crap....

patrick

 

[Scarface30]

Alright, cool. Thanks fellas.

 

[CowPimp]

I think the essence of his original question was, "Should I factor bodyweight into a movement where it contributes significantly to the weight moved." Sure, it makes a difference. I can't remember where I read this or how accurate it is, but I recall something like 3/4 of one's bodyweight is moved during a squat; it seems reasonable enough.

So, if you really wanted you could factor this into the weights you lift if you calculate based on percentages of 1RM. So let's say you take a 200 pound male and he has a 1RM of 350 on the squat. 200*.75=150. So, the true 1RM is about 500 combined bodyweight with external load. So if you wanted to do some ME work @ 90% or above, then it wouldn't be your traditional 315 (350*.9=315). It would be (500*.9)-150 = 300. Makes sense to me.