5 New Messages
Digest #4643
Messages
Sun Dec 9, 2012 12:36 am (PST) . Posted by:
"Martin Huizing" martinhuizing1
You jump 2 times on a force plate or contact mat, using 2 different extra weights, for example 1 x with 0kg, 1 x with 10kg.
The results are extrapolated to a 1RM, see http://www.galileo2000.nl/1RM_PowerTester.pdf.
Not only will you receive the theoretical 1RM, but also the whole theoretical force-velocity relationship.
The force-velocity in bench press was studied by Jidovtseff:
Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
the load-velocity relationship for 1RM prediction. J Strength
Cond Res 24(x): 000–000, 2009—The purpose of this study
was to investigate the ability of the load-velocity relationship to
accurately predict a bench press 1 repetition maximum (1RM).
Data from 3 different bench press studies (n = 112) that
incorporated both 1RM assessment and submaximal load-
velocity profiling were analyzed. Individual regression analysis
was performed to determine the theoretical load at zero
velocity (LD0). Data from each of the 3 studies were analyzed
separately and also presented as overall group mean.
Thereafter, correlation analysis provided quantification of the
relationships between 1RM and LD0. Practically perfect
correlations (r = ;0.95) were observed in our samples,
confirming the ability of the load-velocity profile to accurately
predict bench press 1RM.
I tested it with a force plate and contact mat, and it works perfectly for jumping also.
Therefore I developed a software to do this calculation, including a comparison to earier test sessions, so to study the development.
Please note, that the 1RM depends on more than just muscle strength, and also depends on other qualities like mental toughness, stability and technique.
An athlete can be able to squat a certain 1RM from muscle strength, but can lack in other qualities mentioned.
As 1RM is used mainly to determine the optimal weight for submaximal training, this is a relatively safe alternative.
Cheers,
Martin Huizing
The Netherlands
________________________________
From: Giovanni Ciriani <Giovanni.Ciriani@Gmail.com >
To: Supertraining@yahoogroups.com
Sent: Monday, December 3, 2012 5:21 PM
Subject: Re: [Supertraining] Re: 1 Rep Max
How do you do that? Can you give some detail please?
Giovanni Ciriani - West Hartford, CT - USA
On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@yahoo.com >wrote:
> **
>
>
> You can perform 2 jumps with different weights and measure the height on a
> force plate or contact mat. From the results, you can calculate the 1RM for
> squat. Other 1RM are related to this squat 1RM.
>
>
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
The results are extrapolated to a 1RM, see http://www.galileo2
Not only will you receive the theoretical 1RM, but also the whole theoretical force-velocity relationship.
The force-velocity in bench press was studied by Jidovtseff:
Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
the load-velocity relationship for 1RM prediction. J Strength
Cond Res 24(x): 000–000, 2009—The purpose of this study
was to investigate the ability of the load-velocity relationship to
accurately predict a bench press 1 repetition maximum (1RM).
Data from 3 different bench press studies (n = 112) that
incorporated both 1RM assessment and submaximal load-
velocity profiling were analyzed. Individual regression analysis
was performed to determine the theoretical load at zero
velocity (LD0). Data from each of the 3 studies were analyzed
separately and also presented as overall group mean.
Thereafter, correlation analysis provided quantification of the
relationships between 1RM and LD0. Practically perfect
correlations (r = ;0.95) were observed in our samples,
confirming the ability of the load-velocity profile to accurately
predict bench press 1RM.
I tested it with a force plate and contact mat, and it works perfectly for jumping also.
Therefore I developed a software to do this calculation, including a comparison to earier test sessions, so to study the development.
Please note, that the 1RM depends on more than just muscle strength, and also depends on other qualities like mental toughness, stability and technique.
An athlete can be able to squat a certain 1RM from muscle strength, but can lack in other qualities mentioned.
As 1RM is used mainly to determine the optimal weight for submaximal training, this is a relatively safe alternative.
Cheers,
Martin Huizing
The Netherlands
____________
From: Giovanni Ciriani <Giovanni.Ciriani@
To: Supertraining@
Sent: Monday, December 3, 2012 5:21 PM
Subject: Re: [Supertraining] Re: 1 Rep Max
How do you do that? Can you give some detail please?
Giovanni Ciriani - West Hartford, CT - USA
On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@
> **
>
>
> You can perform 2 jumps with different weights and measure the height on a
> force plate or contact mat. From the results, you can calculate the 1RM for
> squat. Other 1RM are related to this squat 1RM.
>
>
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
Sun Dec 9, 2012 12:37 am (PST) . Posted by:
"efreem3407@aol.com" powerlifter4231
Group,
As a person who trains the powerlifts I don't max that often. Once a month to once every 2 months. Most of the year I train moderately heavy with 3 rep sets in the bench press, squat, and deadlift. I train so that I peak my strength during the summer months when I do my heaviest lifting. If I am going to compete in a competition that is not during the summer months I will peak my strength for that competition so that I am lifting my heaviest for that competition. For my own body, I find that lifting maximal weights 100% of the time is not productive and can lead to injuries. I try to stay in the 55-85% of max most of the time and only when I start training for a competition do I peak; meaning I start training maximal lifts more and increase my lifts to what I want to hit in competition. I hope this makes sense.
Edwin Freeman, Jr.
San Francisco, USA
-----Original Message-----
From: deadliftdiva <deadliftdiva@comcast.net >
To: Supertraining <Supertraining@yahoogroups.com >
Sent: Wed, Dec 5, 2012 12:01 pm
Subject: Re: [Supertraining] Re: 1 Rep Max
I'm going to jump in here with a couple of comments as well.
With newer lifters, 1 rep max is highly variable as the form and other major
components are not as firmly grounded as they get later in the athlete's
performance. I have always heard folks remark that the first three to five years
of a powerlifter (for example) career, the advances come fairly quickly, the
athlete has not truly got a 1 rep max usually for at least 3 years. That is, the
athlete can find good ways to advance the 1 rep max fairly quickly by changes in
form to refine it, eating, or program changes. The influence then of using other
aids (PED, equipment additions for some) also will significantly
accelerate/advance 1 rep max gains.
Rest is another variable that is often overlooked before testing for a 1 rep
max. Some athletes will need more rest before a competition, some thrive on
less.
Consistent eating before training, then using that same eating before a test
also can be helpful.
Stress from outside sources should be considered as well, this influences sleep.
Were I to take a newer athlete to test for a 1 rep max, I wouldn't look for the
max lift for at least a year - the first meets would be exploratory, based on
gym lifts AND working on building confidence. For the confidence to attempt a
true 1 rep max and fail a lift or two is part of the learning experience and
part of building that confidence needed to truly expand your lifting toward what
you cannot believe you do in your daily life, but you do as an athlete on the
platform.
Were I to need just an estimate for program building for an athlete, I'd go with
a challenging triple and then use that, take about 10 percent more as the top
guess for a single, if the risk/reward is not proper for a true max out. Some
folks do not need to risk or strain to the point of possible form break down
simply for well, less necessary reasons. I'd also be sure to use sufficient
spotters and make sure also not to permit with most people short of competition
PL a TRUE grind out max effort.
The Phantom
aka Linda Schaefer Hanley, CMT/RMT, competing powerlifter
Denver, Colorado, USA
----- Original Message -----
From: "Brock" <brockleggins@hotmail.com >
To: Supertraining@yahoogroups.com
Sent: Tuesday, December 4, 2012 10:33:32 AM
Subject: [Supertraining] Re: 1 Rep Max
My first question is, what is the purpose of the 1RM test? If it is being used
to calculate the next block of training, then obviously accuracy is valued, but
not entirely necessary. Is the person a powerlifter? Weightlifter? How long have
they been training? Do you want a training max or contest max?
If they are an athlete using resistance training to improve for their sport, a
precise 1RM is unnecessary. Anything close will do. If they haven't been
training very long, they don't need to perform a 1RM.
My general recommendation for 1RM testing - start with the barx10, then work
your way up making fairly small jumps, sets of 3-5 reps. As you get closer to
the number you are planning on, drop down to singles or doubles. Take 3 attempts
at a max (don't all have to be the same number).
You're overthinking this.
Brock Leggins
Norwalk, IA
--- In Supertraining@yahoogroups.com , Martin Mark <mcm.fitness@...> wrote:
>
> Is there a protocol for conducting a one rep max test. I woiuld think that
> if the test is not done the exact same way each time it is administered the
> results will not be accurate. If no such protocol exists, can I have some
> thoughts on how you may conduct this proceedure......Thanks for your
> help.....Martin C. Mark, CFT
> Fort Lauderd
>
>
> [Non-text portions of this message have been removed]
>
[Non-text portions of this message have been removed]
------------------------------------
Modify/cancel your subscription at:
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Sign all letters with full name & city of residence if you
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[Non-text portions of this message have been removed]
As a person who trains the powerlifts I don't max that often. Once a month to once every 2 months. Most of the year I train moderately heavy with 3 rep sets in the bench press, squat, and deadlift. I train so that I peak my strength during the summer months when I do my heaviest lifting. If I am going to compete in a competition that is not during the summer months I will peak my strength for that competition so that I am lifting my heaviest for that competition. For my own body, I find that lifting maximal weights 100% of the time is not productive and can lead to injuries. I try to stay in the 55-85% of max most of the time and only when I start training for a competition do I peak; meaning I start training maximal lifts more and increase my lifts to what I want to hit in competition. I hope this makes sense.
Edwin Freeman, Jr.
San Francisco, USA
-----Original Message-----
From: deadliftdiva <deadliftdiva@
To: Supertraining <Supertraining@
Sent: Wed, Dec 5, 2012 12:01 pm
Subject: Re: [Supertraining] Re: 1 Rep Max
I'm going to jump in here with a couple of comments as well.
With newer lifters, 1 rep max is highly variable as the form and other major
components are not as firmly grounded as they get later in the athlete's
performance. I have always heard folks remark that the first three to five years
of a powerlifter (for example) career, the advances come fairly quickly, the
athlete has not truly got a 1 rep max usually for at least 3 years. That is, the
athlete can find good ways to advance the 1 rep max fairly quickly by changes in
form to refine it, eating, or program changes. The influence then of using other
aids (PED, equipment additions for some) also will significantly
accelerate/advance 1 rep max gains.
Rest is another variable that is often overlooked before testing for a 1 rep
max. Some athletes will need more rest before a competition, some thrive on
less.
Consistent eating before training, then using that same eating before a test
also can be helpful.
Stress from outside sources should be considered as well, this influences sleep.
Were I to take a newer athlete to test for a 1 rep max, I wouldn't look for the
max lift for at least a year - the first meets would be exploratory, based on
gym lifts AND working on building confidence. For the confidence to attempt a
true 1 rep max and fail a lift or two is part of the learning experience and
part of building that confidence needed to truly expand your lifting toward what
you cannot believe you do in your daily life, but you do as an athlete on the
platform.
Were I to need just an estimate for program building for an athlete, I'd go with
a challenging triple and then use that, take about 10 percent more as the top
guess for a single, if the risk/reward is not proper for a true max out. Some
folks do not need to risk or strain to the point of possible form break down
simply for well, less necessary reasons. I'd also be sure to use sufficient
spotters and make sure also not to permit with most people short of competition
PL a TRUE grind out max effort.
The Phantom
aka Linda Schaefer Hanley, CMT/RMT, competing powerlifter
Denver, Colorado, USA
----- Original Message -----
From: "Brock" <brockleggins@
To: Supertraining@
Sent: Tuesday, December 4, 2012 10:33:32 AM
Subject: [Supertraining] Re: 1 Rep Max
My first question is, what is the purpose of the 1RM test? If it is being used
to calculate the next block of training, then obviously accuracy is valued, but
not entirely necessary. Is the person a powerlifter? Weightlifter? How long have
they been training? Do you want a training max or contest max?
If they are an athlete using resistance training to improve for their sport, a
precise 1RM is unnecessary. Anything close will do. If they haven't been
training very long, they don't need to perform a 1RM.
My general recommendation for 1RM testing - start with the barx10, then work
your way up making fairly small jumps, sets of 3-5 reps. As you get closer to
the number you are planning on, drop down to singles or doubles. Take 3 attempts
at a max (don't all have to be the same number).
You're overthinking this.
Brock Leggins
Norwalk, IA
--- In Supertraining@
>
> Is there a protocol for conducting a one rep max test. I woiuld think that
> if the test is not done the exact same way each time it is administered the
> results will not be accurate. If no such protocol exists, can I have some
> thoughts on how you may conduct this proceedure..
> help.....Martin C. Mark, CFT
> Fort Lauderd
>
>
> [Non-text portions of this message have been removed]
>
[Non-text portions of this message have been removed]
------------
Modify/cancel your subscription at:
http://groups.
Sign all letters with full name & city of residence if you
wish them to be published!
Yahoo! Groups Links
[Non-text portions of this message have been removed]
Sun Dec 9, 2012 6:23 am (PST) . Posted by:
"Giovanni Ciriani" gciriani
Martin, the link is not working. I will read the studies, but based on math
alone you cannot obtain the force-velocity curve with two points. It's a
hyperbolic curve for which you one needs at least three points. Besides
that an experimental curve will need even more points because of sampling
errors.
Giovanni Ciriani - West Hartford, CT - USA
On Sat, Dec 8, 2012 at 4:09 AM, Martin Huizing <martinhuizing1@yahoo.com >wrote:
> **
>
>
> You jump 2 times on a force plate or contact mat, using 2 different extra
> weights, for example 1 x with 0kg, 1 x with 10kg.
> The results are extrapolated to a 1RM, see
> http://www.galileo2000.nl/1RM_PowerTester.pdf.
> Not only will you receive the theoretical 1RM, but also the whole
> theoretical force-velocity relationship.
>
> The force-velocity in bench press was studied by Jidovtseff:
> Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
>
> the load-velocity relationship for 1RM prediction. J Strength
> Cond Res 24(x): 000–000, 2009—The purpose of this study
> was to investigate the ability of the load-velocity relationship to
> accurately predict a bench press 1 repetition maximum (1RM).
> Data from 3 different bench press studies (n = 112) that
> incorporated both 1RM assessment and submaximal load-
> velocity profiling were analyzed. Individual regression analysis
> was performed to determine the theoretical load at zero
> velocity (LD0). Data from each of the 3 studies were analyzed
> separately and also presented as overall group mean.
> Thereafter, correlation analysis provided quantification of the
> relationships between 1RM and LD0. Practically perfect
> correlations (r = ;0.95) were observed in our samples,
> confirming the ability of the load-velocity profile to accurately
> predict bench press 1RM.
>
> I tested it with a force plate and contact mat, and it works perfectly for
> jumping also.
> Therefore I developed a software to do this calculation, including a
> comparison to earier test sessions, so to study the development.
>
> Please note, that the 1RM depends on more than just muscle strength, and
> also depends on other qualities like mental toughness, stability and
> technique.
> An athlete can be able to squat a certain 1RM from muscle strength, but
> can lack in other qualities mentioned.
> As 1RM is used mainly to determine the optimal weight for submaximal
> training, this is a relatively safe alternative.
>
> Cheers,
>
> Martin Huizing
> The Netherlands
>
> ________________________________
> From: Giovanni Ciriani <Giovanni.Ciriani@Gmail.com >
> To: Supertraining@yahoogroups.com
> Sent: Monday, December 3, 2012 5:21 PM
> Subject: Re: [Supertraining] Re: 1 Rep Max
>
>
>
>
> How do you do that? Can you give some detail please?
> Giovanni Ciriani - West Hartford, CT - USA
>
> On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@yahoo.com
> >wrote:
>
> > **
>
> >
> >
> > You can perform 2 jumps with different weights and measure the height on
> a
> > force plate or contact mat. From the results, you can calculate the 1RM
> for
> > squat. Other 1RM are related to this squat 1RM.
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
alone you cannot obtain the force-velocity curve with two points. It's a
hyperbolic curve for which you one needs at least three points. Besides
that an experimental curve will need even more points because of sampling
errors.
Giovanni Ciriani - West Hartford, CT - USA
On Sat, Dec 8, 2012 at 4:09 AM, Martin Huizing <martinhuizing1@
> **
>
>
> You jump 2 times on a force plate or contact mat, using 2 different extra
> weights, for example 1 x with 0kg, 1 x with 10kg.
> The results are extrapolated to a 1RM, see
> http://www.galileo2
> Not only will you receive the theoretical 1RM, but also the whole
> theoretical force-velocity relationship.
>
> The force-velocity in bench press was studied by Jidovtseff:
> Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
>
> the load-velocity relationship for 1RM prediction. J Strength
> Cond Res 24(x): 000–000, 2009—The purpose of this study
> was to investigate the ability of the load-velocity relationship to
> accurately predict a bench press 1 repetition maximum (1RM).
> Data from 3 different bench press studies (n = 112) that
> incorporated both 1RM assessment and submaximal load-
> velocity profiling were analyzed. Individual regression analysis
> was performed to determine the theoretical load at zero
> velocity (LD0). Data from each of the 3 studies were analyzed
> separately and also presented as overall group mean.
> Thereafter, correlation analysis provided quantification of the
> relationships between 1RM and LD0. Practically perfect
> correlations (r = ;0.95) were observed in our samples,
> confirming the ability of the load-velocity profile to accurately
> predict bench press 1RM.
>
> I tested it with a force plate and contact mat, and it works perfectly for
> jumping also.
> Therefore I developed a software to do this calculation, including a
> comparison to earier test sessions, so to study the development.
>
> Please note, that the 1RM depends on more than just muscle strength, and
> also depends on other qualities like mental toughness, stability and
> technique.
> An athlete can be able to squat a certain 1RM from muscle strength, but
> can lack in other qualities mentioned.
> As 1RM is used mainly to determine the optimal weight for submaximal
> training, this is a relatively safe alternative.
>
> Cheers,
>
> Martin Huizing
> The Netherlands
>
> ____________
> From: Giovanni Ciriani <Giovanni.Ciriani@
> To: Supertraining@
> Sent: Monday, December 3, 2012 5:21 PM
> Subject: Re: [Supertraining] Re: 1 Rep Max
>
>
>
>
> How do you do that? Can you give some detail please?
> Giovanni Ciriani - West Hartford, CT - USA
>
> On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@
> >wrote:
>
> > **
>
> >
> >
> > You can perform 2 jumps with different weights and measure the height on
> a
> > force plate or contact mat. From the results, you can calculate the 1RM
> for
> > squat. Other 1RM are related to this squat 1RM.
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
Sun Dec 9, 2012 6:25 am (PST) . Posted by:
"carruthersjam" carruthersjam
Works fine without the full stop at the end:
http://www.galileo2000.nl/1RM_PowerTester.pdf
Jamie Carruthers
Wakefield, UK
--- In Supertraining@yahoogroups.com , Giovanni Ciriani <Giovanni.Ciriani@...> wrote:
>
> Martin, the link is not working. I will read the studies, but based on math
> alone you cannot obtain the force-velocity curve with two points. It's a
> hyperbolic curve for which you one needs at least three points. Besides
> that an experimental curve will need even more points because of sampling
> errors.
> Giovanni Ciriani - West Hartford, CT - USA
>
> On Sat, Dec 8, 2012 at 4:09 AM, Martin Huizing <martinhuizing1@...>wrote:
>
> > **
> >
> >
> > You jump 2 times on a force plate or contact mat, using 2 different extra
> > weights, for example 1 x with 0kg, 1 x with 10kg.
> > The results are extrapolated to a 1RM, see
> > http://www.galileo2000.nl/1RM_PowerTester.pdf.
> > Not only will you receive the theoretical 1RM, but also the whole
> > theoretical force-velocity relationship.
> >
> > The force-velocity in bench press was studied by Jidovtseff:
> > Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
> >
> > the load-velocity relationship for 1RM prediction. J Strength
> > Cond Res 24(x): 000â€"000, 2009â€"The purpose of this study
> > was to investigate the ability of the load-velocity relationship to
> > accurately predict a bench press 1 repetition maximum (1RM).
> > Data from 3 different bench press studies (n = 112) that
> > incorporated both 1RM assessment and submaximal load-
> > velocity proï¬ling were analyzed. Individual regression analysis
> > was performed to determine the theoretical load at zero
> > velocity (LD0). Data from each of the 3 studies were analyzed
> > separately and also presented as overall group mean.
> > Thereafter, correlation analysis provided quantiï¬cation of the
> > relationships between 1RM and LD0. Practically perfect
> > correlations (r = ;0.95) were observed in our samples,
> > conï¬rming the ability of the load-velocity proï¬le to accurately
> > predict bench press 1RM.
> >
> > I tested it with a force plate and contact mat, and it works perfectly for
> > jumping also.
> > Therefore I developed a software to do this calculation, including a
> > comparison to earier test sessions, so to study the development.
> >
> > Please note, that the 1RM depends on more than just muscle strength, and
> > also depends on other qualities like mental toughness, stability and
> > technique.
> > An athlete can be able to squat a certain 1RM from muscle strength, but
> > can lack in other qualities mentioned.
> > As 1RM is used mainly to determine the optimal weight for submaximal
> > training, this is a relatively safe alternative.
> >
> > Cheers,
> >
> > Martin Huizing
> > The Netherlands
> >
> > ________________________________
> > From: Giovanni Ciriani <Giovanni.Ciriani@...>
> > To: Supertraining@yahoogroups.com
> > Sent: Monday, December 3, 2012 5:21 PM
> > Subject: Re: [Supertraining] Re: 1 Rep Max
> >
> >
> >
> >
> > How do you do that? Can you give some detail please?
> > Giovanni Ciriani - West Hartford, CT - USA
> >
> > On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@...
> > >wrote:
> >
> > > **
> >
> > >
> > >
> > > You can perform 2 jumps with different weights and measure the height on
> > a
> > > force plate or contact mat. From the results, you can calculate the 1RM
> > for
> > > squat. Other 1RM are related to this squat 1RM.
> > >
> > >
> > >
> >
> > [Non-text portions of this message have been removed]
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>
http://www.galileo2
Jamie Carruthers
Wakefield, UK
--- In Supertraining@
>
> Martin, the link is not working. I will read the studies, but based on math
> alone you cannot obtain the force-velocity curve with two points. It's a
> hyperbolic curve for which you one needs at least three points. Besides
> that an experimental curve will need even more points because of sampling
> errors.
> Giovanni Ciriani - West Hartford, CT - USA
>
> On Sat, Dec 8, 2012 at 4:09 AM, Martin Huizing <martinhuizing1@
>
> > **
> >
> >
> > You jump 2 times on a force plate or contact mat, using 2 different extra
> > weights, for example 1 x with 0kg, 1 x with 10kg.
> > The results are extrapolated to a 1RM, see
> > http://www.galileo2
> > Not only will you receive the theoretical 1RM, but also the whole
> > theoretical force-velocity relationship.
> >
> > The force-velocity in bench press was studied by Jidovtseff:
> > Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
> >
> > the load-velocity relationship for 1RM prediction. J Strength
> > Cond Res 24(x): 000â€"000, 2009â€"The purpose of this study
> > was to investigate the ability of the load-velocity relationship to
> > accurately predict a bench press 1 repetition maximum (1RM).
> > Data from 3 different bench press studies (n = 112) that
> > incorporated both 1RM assessment and submaximal load-
> > velocity proï¬ling were analyzed. Individual regression analysis
> > was performed to determine the theoretical load at zero
> > velocity (LD0). Data from each of the 3 studies were analyzed
> > separately and also presented as overall group mean.
> > Thereafter, correlation analysis provided quantiï¬cation of the
> > relationships between 1RM and LD0. Practically perfect
> > correlations (r = ;0.95) were observed in our samples,
> > conï¬rming the ability of the load-velocity proï¬le to accurately
> > predict bench press 1RM.
> >
> > I tested it with a force plate and contact mat, and it works perfectly for
> > jumping also.
> > Therefore I developed a software to do this calculation, including a
> > comparison to earier test sessions, so to study the development.
> >
> > Please note, that the 1RM depends on more than just muscle strength, and
> > also depends on other qualities like mental toughness, stability and
> > technique.
> > An athlete can be able to squat a certain 1RM from muscle strength, but
> > can lack in other qualities mentioned.
> > As 1RM is used mainly to determine the optimal weight for submaximal
> > training, this is a relatively safe alternative.
> >
> > Cheers,
> >
> > Martin Huizing
> > The Netherlands
> >
> > ____________
> > From: Giovanni Ciriani <Giovanni.Ciriani@
> > To: Supertraining@
> > Sent: Monday, December 3, 2012 5:21 PM
> > Subject: Re: [Supertraining] Re: 1 Rep Max
> >
> >
> >
> >
> > How do you do that? Can you give some detail please?
> > Giovanni Ciriani - West Hartford, CT - USA
> >
> > On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@
> > >wrote:
> >
> > > **
> >
> > >
> > >
> > > You can perform 2 jumps with different weights and measure the height on
> > a
> > > force plate or contact mat. From the results, you can calculate the 1RM
> > for
> > > squat. Other 1RM are related to this squat 1RM.
> > >
> > >
> > >
> >
> > [Non-text portions of this message have been removed]
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>
Sun Dec 9, 2012 8:20 am (PST) . Posted by:
"Martin Huizing" martinhuizing1
Hi Giovanni,
Most theory books show a hyperbolic F-v relationship.
Sometimes practice shows you different.
If you jump up from the same CoM height with different weights, you will find a pretty perfect F-v relationship, which will bring you a nice hyperbolic F-height relationship.
In fact, the same F-v relationship you will find if you would measure Force and velocity at a given CoM height ('dip'), jumping from different CoM heights.
As far as I know, this has not been studied, or at least published yet.
It will also help in constructing the correct research setup.
I wrote an article about part of this some time ago (in Dutch): www.knkf.nl/media/files/KTdecember_2009.pdf.
Translated ... http://translate.google.nl/translate?hl=nl&sl=nl&tl=en&u=http%3A%2F%2Fwww.knkf.nl%2Fmedia%2Ffiles%2FKTdecember_2009.pdf ).
Cheers,
Martin Huizing
________________________________
From: Giovanni Ciriani <Giovanni.Ciriani@Gmail.com >
To: Supertraining@yahoogroups.com
Sent: Sunday, December 9, 2012 2:09 PM
Subject: Re: [Supertraining] Re: 1 Rep Max
Martin, the link is not working. I will read the studies, but based on math
alone you cannot obtain the force-velocity curve with two points. It's a
hyperbolic curve for which you one needs at least three points. Besides
that an experimental curve will need even more points because of sampling
errors.
Giovanni Ciriani - West Hartford, CT - USA
On Sat, Dec 8, 2012 at 4:09 AM, Martin Huizing <martinhuizing1@yahoo.com >wrote:
> **
>
>
> You jump 2 times on a force plate or contact mat, using 2 different extra
> weights, for example 1 x with 0kg, 1 x with 10kg.
> The results are extrapolated to a 1RM, see
> http://www.galileo2000.nl/1RM_PowerTester.pdf.
> Not only will you receive the theoretical 1RM, but also the whole
> theoretical force-velocity relationship.
>
> The force-velocity in bench press was studied by Jidovtseff:
> Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
>
> the load-velocity relationship for 1RM prediction. J Strength
> Cond Res 24(x): 000–000, 2009—The purpose of this study
> was to investigate the ability of the load-velocity relationship to
> accurately predict a bench press 1 repetition maximum (1RM).
> Data from 3 different bench press studies (n = 112) that
> incorporated both 1RM assessment and submaximal load-
> velocity profiling were analyzed. Individual regression analysis
> was performed to determine the theoretical load at zero
> velocity (LD0). Data from each of the 3 studies were analyzed
> separately and also presented as overall group mean.
> Thereafter, correlation analysis provided quantification of the
> relationships between 1RM and LD0. Practically perfect
> correlations (r = ;0.95) were observed in our samples,
> confirming the ability of the load-velocity profile to accurately
> predict bench press 1RM.
>
> I tested it with a force plate and contact mat, and it works perfectly for
> jumping also.
> Therefore I developed a software to do this calculation, including a
> comparison to earier test sessions, so to study the development.
>
> Please note, that the 1RM depends on more than just muscle strength, and
> also depends on other qualities like mental toughness, stability and
> technique.
> An athlete can be able to squat a certain 1RM from muscle strength, but
> can lack in other qualities mentioned.
> As 1RM is used mainly to determine the optimal weight for submaximal
> training, this is a relatively safe alternative.
>
> Cheers,
>
> Martin Huizing
> The Netherlands
>
> ________________________________
> From: Giovanni Ciriani <Giovanni.Ciriani@Gmail.com >
> To: Supertraining@yahoogroups.com
> Sent: Monday, December 3, 2012 5:21 PM
> Subject: Re: [Supertraining] Re: 1 Rep Max
>
>
>
>
> How do you do that? Can you give some detail please?
> Giovanni Ciriani - West Hartford, CT - USA
>
> On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@yahoo.com
> >wrote:
>
> > **
>
> >
> >
> > You can perform 2 jumps with different weights and measure the height on
> a
> > force plate or contact mat. From the results, you can calculate the 1RM
> for
> > squat. Other 1RM are related to this squat 1RM.
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
Most theory books show a hyperbolic F-v relationship.
Sometimes practice shows you different.
If you jump up from the same CoM height with different weights, you will find a pretty perfect F-v relationship, which will bring you a nice hyperbolic F-height relationship.
In fact, the same F-v relationship you will find if you would measure Force and velocity at a given CoM height ('dip'), jumping from different CoM heights.
As far as I know, this has not been studied, or at least published yet.
It will also help in constructing the correct research setup.
I wrote an article about part of this some time ago (in Dutch): www.knkf.nl/
Translated ... http://translate.
Cheers,
Martin Huizing
____________
From: Giovanni Ciriani <Giovanni.Ciriani@
To: Supertraining@
Sent: Sunday, December 9, 2012 2:09 PM
Subject: Re: [Supertraining] Re: 1 Rep Max
Martin, the link is not working. I will read the studies, but based on math
alone you cannot obtain the force-velocity curve with two points. It's a
hyperbolic curve for which you one needs at least three points. Besides
that an experimental curve will need even more points because of sampling
errors.
Giovanni Ciriani - West Hartford, CT - USA
On Sat, Dec 8, 2012 at 4:09 AM, Martin Huizing <martinhuizing1@
> **
>
>
> You jump 2 times on a force plate or contact mat, using 2 different extra
> weights, for example 1 x with 0kg, 1 x with 10kg.
> The results are extrapolated to a 1RM, see
> http://www.galileo2
> Not only will you receive the theoretical 1RM, but also the whole
> theoretical force-velocity relationship.
>
> The force-velocity in bench press was studied by Jidovtseff:
> Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using
>
> the load-velocity relationship for 1RM prediction. J Strength
> Cond Res 24(x): 000–000, 2009—The purpose of this study
> was to investigate the ability of the load-velocity relationship to
> accurately predict a bench press 1 repetition maximum (1RM).
> Data from 3 different bench press studies (n = 112) that
> incorporated both 1RM assessment and submaximal load-
> velocity profiling were analyzed. Individual regression analysis
> was performed to determine the theoretical load at zero
> velocity (LD0). Data from each of the 3 studies were analyzed
> separately and also presented as overall group mean.
> Thereafter, correlation analysis provided quantification of the
> relationships between 1RM and LD0. Practically perfect
> correlations (r = ;0.95) were observed in our samples,
> confirming the ability of the load-velocity profile to accurately
> predict bench press 1RM.
>
> I tested it with a force plate and contact mat, and it works perfectly for
> jumping also.
> Therefore I developed a software to do this calculation, including a
> comparison to earier test sessions, so to study the development.
>
> Please note, that the 1RM depends on more than just muscle strength, and
> also depends on other qualities like mental toughness, stability and
> technique.
> An athlete can be able to squat a certain 1RM from muscle strength, but
> can lack in other qualities mentioned.
> As 1RM is used mainly to determine the optimal weight for submaximal
> training, this is a relatively safe alternative.
>
> Cheers,
>
> Martin Huizing
> The Netherlands
>
> ____________
> From: Giovanni Ciriani <Giovanni.Ciriani@
> To: Supertraining@
> Sent: Monday, December 3, 2012 5:21 PM
> Subject: Re: [Supertraining] Re: 1 Rep Max
>
>
>
>
> How do you do that? Can you give some detail please?
> Giovanni Ciriani - West Hartford, CT - USA
>
> On Sun, Dec 2, 2012 at 4:07 AM, Martin Huizing <martinhuizing1@
> >wrote:
>
> > **
>
> >
> >
> > You can perform 2 jumps with different weights and measure the height on
> a
> > force plate or contact mat. From the results, you can calculate the 1RM
> for
> > squat. Other 1RM are related to this squat 1RM.
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
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