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Deadlift/Squats on soft flooring equalling less weight lifted?

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Funky_monkeyIconDeadlift/Squats on soft flooring equalling less weight lifted?10-04-2018 @ 11:00 
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Member 160, 5120 posts
SQ 190, BP 137.5, DL 225
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Energy lost going into said flooring.

Bodyweight on tiles - 88.7
Bodyweight on rubber mats - 78.7

12% difference due to flooring.

I'm thinking the energy I'm putting into the floor is lost from mats. My bench is the strongest it's been for a very long time and hitting PBs, but deadlift is lagging at "normal" levels for me. Could this be due to energy lost to compress the mats instead of it going to the bar?

Do I make any sense?

Should I take off some rubber mats and deadlift on concrete to see if there's any serious difference to the weights I'm lifting?
LessThanLukeIcon...10-04-2018 @ 11:14 
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his poor male ego must be crushed
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How soft are the mats?
Wayne_CowdreyIcon...10-04-2018 @ 12:26 
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Still got a little bit of strength
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Could be due to your stabilising muscles having to work harder?
dannyboy73Icon...10-04-2018 @ 13:47 
Mask it or Casket !!
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SQ 240, BP 162.5, DL 255
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Could it be argued that you performing a slight deficit on the soft floor and having to pick 1-2 inches lower?
With my poverty pick Id certainly notice a difference. (your weight wont sink into the floor like a 200 plus loaded bar to counterbalance the effect...i think???)
93hopkinsonrIcon...10-04-2018 @ 14:03 
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Mr.Potato deadlift
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Having this exact problem at the moment mate. The gym owner put 2 inches of a foam like thing under where we deadlift and then a piece of ply and rubber mat over that. I’ve badically had no joy at all deadlifting since he did that and 2 adductor injuries which could be due to the slight movement?

I’m also an explosive puller from the ground but seem to have lost that power and am more of a “Savickas” slow type puller recently.

I’ve deadlifted a couple of times at different gym on a proper concrete floor and it feels better but I’ve lost strength.

So, my advice is to sort it out quickly and pull off something concrete if possible before you lose gains lol
Funky_monkeyIcon...10-04-2018 @ 15:12 
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LessThanLuke said:How soft are the mats?


Soft enough to make a significant difference to what the scales show when I'm weighing myself. They don't visibly squish at all. Here's a very similar product, the only difference is mine are 40x40cm.

http://nicebackyard.com/product/rubber-gym-mats-1mx1mx-20mm-bl...

I quite like the name of this website!
Funky_monkeyIcon...10-04-2018 @ 15:13 
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93hopkinsonr said:Having this exact problem at the moment mate. The gym owner put 2 inches of a foam like thing under where we deadlift and then a piece of ply and rubber mat over that. I’ve badically had no joy at all deadlifting since he did that and 2 adductor injuries which could be due to the slight movement?

I’m also an explosive puller from the ground but seem to have lost that power and am more of a “Savickas” slow type puller recently.

I’ve deadlifted a couple of times at different gym on a proper concrete floor and it feels better but I’ve lost strength.

So, my advice is to sort it out quickly and pull off something concrete if possible before you lose gains lol


I'm going to remove a few mats and lift off concrete the next time I'm doing heavy pulls.
JohnIcon...10-04-2018 @ 16:39 
#biggef
Member 5263, 3492 posts
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I've been thinking the same at our gym,I use rubber mats under the plate as the Centre is hard rubber but the sides are matts also the bloody bar rolls everywhere,not sure if it effects my 1rep in my situation just a pain,
PikefingersIcon...10-04-2018 @ 17:59 
Squatting isn't doing my back any good.
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Funky be careful about deadlifting straight onto your nice new concrete floor in your nice new gym. If you’re not using rubber-coated plates you will destroy the floor (I’ve done it before) and even rubber coated ones are likely to damage it.

I had this problem in my home gym after putting down very soft rubber matting (too soft to squat on) and I fixed it by putting down some very thick chip board section which had been left behind by builders.
FAT_SAMIcon...11-04-2018 @ 22:40 
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more like 'FAT TROLL'
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The only time I bombed out at a meet was when the floor was pretty soft.
ChrisMcCarthyIcon...12-04-2018 @ 08:33 
Lost his pen, then found his pen. #phew
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Your weight "changes" due to the way the scales settle differently on a soft surface - they are calibrated on a hard surface (generally) and even the tiny difference in distance (due to the way the physical structure of the scales bend) between the sensors add up to a large amount of difference on the display.
Funky_monkeyIcon...12-04-2018 @ 13:09 
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ChrisMcCarthy said:Your weight "changes" due to the way the scales settle differently on a soft surface - they are calibrated on a hard surface (generally) and even the tiny difference in distance (due to the way the physical structure of the scales bend) between the sensors add up to a large amount of difference on the display.


Would you say that there's any (more than 1%) difference in the actual energy require to shift a certain mass whilst on a soft surface? I mean will it affect my deads/squats?
ChrisMcCarthyIcon...12-04-2018 @ 14:30 
Lost his pen, then found his pen. #phew
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Funky_monkey said:
Would you say that there's any (more than 1%) difference in the actual energy require to shift a certain mass whilst on a soft surface? I mean will it affect my deads/squats?


Hard to say (would depend on material).

As long as it is not an actual safety concern (ie. so soft you could roll an ankle) I doubt it would make a tremendous difference...we know carpet causes difference on a scale but you wouldn't have any concern lifting on a carpet normally, would you?
IainKendrickIcon...12-04-2018 @ 15:38 
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some nice relaxing jazz.
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If I get this right- the harder the surface the greater reactive force.

That's why harder the surface on an athletics tracks the potentially faster times.

Guessing the softer the surface the dissipation of force in unwanted directions?
ChrisMcCarthyIcon...12-04-2018 @ 16:03 
Lost his pen, then found his pen. #phew
Member 4899, 2956 posts
IainKendrick said:If I get this right- the harder the surface the greater reactive force.

That's why harder the surface on an athletics tracks the potentially faster times.

Guessing the softer the surface the dissipation of force in unwanted directions?


Yes, the surface deforms and reforms more...given the length of time you are applying force in PL Vs Sprinting the effect will be somewhat less drastic.

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