1RM calculation.

[MisterSuperGod]

While Meso was going through database pains last night, i started searching the web and came across a pretty cool site.

According to the info i provided, i'm stronger than 70% of people in my age range for some of my lifts. Surprising, 'cause i'm not very big, nor very strong, IMO, but 'yay me' anyway.

They have a 1RM calculator. i don't test my 1RM, but i'm curious to know if it's even remotely accurate to what it's telling me.

Would a few of you that know your 1RM for any of your lifts like to plug in that info on the site and let me know if it's accurate?

One Rep Max Calculator - Strength Level

i appreciate it, guys. Thank you.

 

[MindlessWork]

It's because you are a supergod

Jokes aside I've never really figured out my 1RM's for my lifts so this is a nice gem you found and it can be a useful tool.

 

[Perrin Aybara]

Depends on how many reps in a set you're using. A 2-5 rep set should be pretty accurate. The higher the reps the less accurate it's going to be.

 

[Havah]

While Meso was going through database pains last night, i started searching the web and came across a pretty cool site.

According to the info i provided, i'm stronger than 70% of people in my age range for some of my lifts. Surprising, 'cause i'm not very big, nor very strong, IMO, but 'yay me' anyway.

They have a 1RM calculator. i don't test my 1RM, but i'm curious to know if it's even remotely accurate to what it's telling me.

Would a few of you that know your 1RM for any of your lifts like to plug in that info on the site and let me know if it's accurate?

One Rep Max Calculator - Strength Level

i appreciate it, guys. Thank you.

Says I m weak as hell, sounds pretty acurate to me

 

[LeoTC]

Week seven of a twelve week program to bring myself back to baseline after two years being detrained.

Initially struggled at 205B/300S/135PP/315D

Yeah, I lost a lot.

Blew away my goals for each of the four after the first three weeks, waved goodbye this week.

So my best multi-rep Max for DL was 385/2. Plugged that in and got back a 1RP of 396.

I 'PR'd'at 455 this afternoon.

320/2 on my Squat returned 329. I hit 385 two days ago.

So...yeah.

 

[Ironlord]

Depends on the person really, and the way you train. I find that most 1rm calculators underestimate my max by around 20-30lbs, yet for my training partner they usually overshoot his max.

He has more endurance in his muscles and can usually out rep me with moderate weights but I outlift him in max attempts.

 

[Mayne]

Week seven of a twelve week program to bring myself back to baseline after two years being detrained.

Initially struggled at 205B/300S/135PP/315D

Yeah, I lost a lot.

Blew away my goals for each of the four after the first three weeks, waved goodbye this week.

So my best multi-rep Max for DL was 385/2. Plugged that in and got back a 1RP of 396.

I 'PR'd'at 455 this afternoon.

320/2 on my Squat returned 329. I hit 385 two days ago.

So...yeah.

That is because you are vastly underestimating your actual 2 RM, there are more accurate tools but if your 1 RM is 455, 385 is ~85% of your 1 RM which means that you have to be able to do more than double. There are of course things like muscle build up (fibres) that play a role, training method an all that. If you are training in the usually highest beneficial range of 1 to 10 reps on the bigger movements with decent periodisation the formulas have decent approximation but are usually optimal with higher loads and experienced athletes. Check Kirill Sarychev for example, his 4 RM bench is 300 (that is in kilograms) and his 1 RM 6 weeks later is 335, with an estimation of 327 as per the formula. Thing is you have to really work at or around your 1 RM often enough to be able to approximate or know.

 

[Mac11wildcat]

These calculators do a pretty bad job in my experience. Gotta spend some serious time in the 1-4rep range to get any real idea. Too many personal factors contribute to this.

 

[jaymaximus]

There's an app for that, 1RM

 

[LeoTC]

That is because you are vastly underestimating your actual 2 RM, there are more accurate tools but if your 1 RM is 455, 385 is ~85% of your 1 RM which means that you have to be able to do more than double. There are of course things like muscle build up (fibres) that play a role, training method an all that. If you are training in the usually highest beneficial range of 1 to 10 reps on the bigger movements with decent periodisation the formulas have decent approximation but are usually optimal with higher loads and experienced athletes. Check Kirill Sarychev for example, his 4 RM bench is 300 (that is in kilograms) and his 1 RM 6 weeks later is 335, with an estimation of 327 as per the formula. Thing is you have to really work at or around your 1 RM often enough to be able to approximate or know.

They weren't 2RMs actually, just the highest I'd recorded based on my programming over the last, then, seven weeks.

The point was to plug in numbers and see how close or far off the calculator was.

Recorded 1RM prior to hitting 455 the other day was 425. Which is why I'd programmed 385 at 90%.

Basically throwing out the fact that most of the calculators are more or less shit. Estimates are never going to be truly accurate or really all that relevant.

Way better to work backward from an actual max, not a theoretical one.

 

[Mayne]

They weren't 2RMs actually, just the highest I'd recorded based on my programming over the last, then, seven weeks.

The point was to plug in numbers and see how close or far off the calculator was.

Recorded 1RM prior to hitting 455 the other day was 425. Which is why I'd programmed 385 for my last week of the training wave.

I could have thrown in any personal training data. The point was basically that most max calculators are kind of bullshit.

In my experience and people I train with which are usually powerlifters and ex-weightlifters or generally people looking to get stronger and working out in the lower rep ranges the 1 RM projection is usually just underestimating the actual by 1% to 2% if using a limited to 10 RM tool, all the ones which go higher aren't going to do

 

[cfreetenor]

Skews 10-20lbs lower on every lift for me.