Dr Mel Siff Discusses the Best Personal Training Certifications

Author: Dr Mel Siff Blog  //  Category: Dr Siff on Science, Dr Siff on Training Theory

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Periodically some list members ask for advice about which certification to
seek – well, the following research study showed that NSCA and ACSM appeared
to be the best options and recommended that higher levels of formal
educational training should be regarded as highly advisable for all fitness
certification schemes.

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J of Strength & Conditioning Research: Vol 16, No 1, pp. 19–24

Malek, MH, Nalbone DP, Berger DE, Coburn JW Importance of health science
education for personal fitness trainers.

ABSTRACT

Using a questionnaire developed for the current study, the Fitness
Instructors Knowledge Assessment (FIKA©), we examined relations between
commonly used indicators of knowledge (training and experience) and actual
knowledge in the five areas of (a) nutrition, (b) health screening, (c)
testing protocols, (d) exercise prescription, and (e) general training
knowledge regarding special populations. FIKA provided reliable measures of Read more…

Dr Mel Siff Questions Accuracy of New Weightlifting Formulas

Author: Dr Mel Siff Blog  //  Category: Main Content

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It was most interesting to note in the latest issue of the NSCA’s Journal of
Strength & Conditioning Research that several well-known Finnish scientists
have developed another weightlifting comparison formula after analysing those
developed by others such as Sinclair and myself. In certain places I have
considered it appropriate to comment on this paper, either to make
corrections or to simplify what was written.

I have included only the most relevant excerpts for my commentary – those who
wish to read the entire article can do so in the Journal.

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Kauhanen H, Komi PV & Haekkinen K. Standardization and validation of the body
weight adjustment regression equations in Olympic weightlifting.

J of Strength & Conditioning Research: Vol 16, No 1, pp 58-74

ABSTRACT

The problems in comparing the performances of Olympic weightlifters arise
from the fact that the relationship between body weight and weightlifting
results is not linear. In the present study, this relationship was examined
by using a nonparametric curve fitting technique of robust locally weighted
regression (LOWESS) on relatively large data sets of the weightlifting
results made in top international competitions. Power function formulas were Read more…

Dr Mel Siff Talks Language and Popularisation

Author: Dr Mel Siff Blog  //  Category: Dr Siff on Science, Main Content

This is a follow-up to a discussion about peer review and the NSCA’s journals

Has the situation changed? In the August 2000 S&C Journal, the NSCA
published its latest guideline for all of its members: “The National Strength
and Conditioning Association’s Basic Guidelines for the Resistance Training
of Athletes”.

This article discussed periodisation in detail and referred to “linear” and
“non-linear” periodisation models that are not classically accepted
definitions and terminology (by the Russians and early architects of
periodisation theory). Moreover, there were semantic errors in defining
linearity as the authors of the article did. Linearity never even existed in
the long term periodisation models used by any of the Russian authorities,
since it has been well known that all of the models that have ever been used
involve CURVILINEAR changes in intensity and volume. It has also been well
known that adaptation is not a linear process.

The article stated that: “The linear model is the most classic model of
periodisation…. the linear model of periodization varies the intensity over
several weeks (or microcycles) of training….. A nonlinear periodization
model varies the intensity and volume over the week.” By no stretch of the
semantic imagination, are these acceptable definitions of linearity and
nonlinearity. Of course, we can do with language anything that we like, but
there do happen to be certain existing rules, conventions and guidelines that
should not be ignored in a reviewed publication. We have to remember that
review always examines the content and linguistic correctness of any
publication, so one cannot simply ignore the latter. If one does change the
rules, then one comments on that fact.

In introducing the “nonlinear” model, the authors omitted the fact that
variations may also be performed at the level of multiple training sessions
offered in a single day (e.g. see Matveev’s book “Fundamentals of Sports
Training”, 1977). This was even done in the “classical” model to which they
referred and it has been a very important factor in the progress of Russian
and Bulgarian weightlifters and various other athletes

In the section on the “linear model” of periodisation, the authors wrote:
“…it should be noted that the weekly fluctuations occur such that …” A
fluctuation implies changes up and down, and implies that the changes are not
at all linear. How can fluctuations exist in a “linear” model, unless those
fluctuations are linear? If that was what the authors meant, then they
should have stated that fact, because the term “linearity” is not extant in an
y of the classical works on periodisation.

LANGUAGE ISSUES

I may sound pedantic or fussy about such details, but one of my jobs at my
former university and on various scientific committees was to annually edit
and review many hundreds of professional articles, research projects, books
and speeches by senior students, university staff and commercially employed
scientists and engineers. I have probably reviewed and edited more than 10
000 such articles in my 20 years as a professional communications specialist,
so I became intimately aware of the importance of linguistic acceptability.

My university became so concerned about the problem of dubious communication
and language skills among its engineering, science and commerce students that
it set up compulsory semester or year long courses in “Professional
Communication” which students had to pass in written and oral communication.
This involved me in editing a textbook called “Professional Communication”
that is still used quite widely in my former homeland, S Africa.

After several years of living in the USA, I am very concerned about the
extremely poor command of the English language here – only a few weeks ago, a
news article stated that 30 years ago teenagers in the USA had a vocabulary
that was about THREE times larger than that of the teenagers of today. Last
night, a TV report commented that the level of English and Mathematical
skills in the USA has dropped to a ranking of below number 40 on the world
scale and that the failure rate in high school English is over 60 percent.
I am fully aware that the government and school boards are very concerned
about all of this – let us hope that the nation appreciates what this demise
in capabilities can mean for our nation.

While this may appear to be peripheral to the topics of strength science and
training which we discuss here, we have to remember that the effective
communication of all knowledge is central to the application and progress of
any discipline, so I will unabashedly continue to comment on cases where
improvement may be necessary. We cannot afford to accept something just
because our audiences “will get the general idea” of what we are trying to
say, least of all in a journal which is trying to be recognised as the leader
in its field.

PERIODISATION INFORMATION

The NSCA Training Guidelines article gave prolific detail on its own authors’
concepts of periodisation and modified versions of it made by various NSCA
members, but failed to give any references or summaries of the definitive
original models of periodisation by its pioneers in Russia – other than a
little by Zatsiorsky and Vorobyev. The name of Matveev (or Matveyev), the
greatest popularist of periodisation theory is not mentioned once, nor are
any of the important models of Bondrachuk, Arosiev, and Verkhoshansky. This
is tantamount to omitting mention of Einstein in discussions of relativity
physics. Instead, many references were made to articles or books on
periodisation written by one of the authors of the article.

While the article contained a great deal of useful information, there are
sections like that on periodisation (American: “periodization”) which would
certainly have profited from independent peer scrutiny. May I now ask,
Steven, if all articles in the S&C Journal are genuinely reviewed or are they
simply read through for the most glaring errors? I was very pleased that its
editor, Jeff Chandler, had the integrity and professionalism to admit that in
at least one case the review process was not be as thorough as it could have
been because of the stature of authors or their connections with the NSCA. I
trust that others will follow his example.

Dr Mel C Siff

Dr Mel Siff Talks Biomechanical Popularisation

Author: Dr Mel Siff Blog  //  Category: Dr Siff on Biomechanics

Recently an article “Toward an Understanding of Power” was written in the
NSCA’s Strength & Conditioning Journal (Oct 1999: 34-35), which contained
some curious biomechanical definitions and calculations. Here are a few of
them for your interest:

1. “For instance, in cleaning a weight, the velocity of the bar is equal to
its speed and the upward direction in which it moves.”

2. “Strength times speed equals power”

3. Work = force x distance, where Force = Mass lifted,
Distance = gravity x height of pull
Gravity = 9.8 m per sec squared

The article then used the above definitions to calculate power and hence
compare the power generated in the Weightlifting clean and the Powerlifting
deadlift, thus:

Power = Work/Time to execute lift

….but did not distinguish at all between mean power, power at any instant
and peak power during the lifts concerned (deadlifts and cleans).

Would anyone else care to comment on the material which I have quoted above?

In a letter to the editor of the journal, I stressed that one cannot casually
equate velocity (a vector) and the speed (a scalar) ,especially in
non-linear dynamic lifts, and that work is not simply Force x Distance in a
system in which force and direction of application of the force is changing
throughout the movement. I also pointed out the obvious errors in equating
Force with Mass and in defining Distance = gravity x height of pull (all of
this is nonsense).

The author of the article simply replied in the Aug 2000 issue of the same
Journal that:

” I had Dr L, chairman of the math/physics department at …….. University,
review the formula along with the comments. Dr L said that my calculations
are correct…… In trying to make the formula more understandable to
people with no background in math and physics, I had added a few extra words
for clarification purposes, which to a purist was not acceptable.”

Would anyone care to comment on this response, as well?

What concerns me is that this NSCA (National Strength & Conditioning Associati
on) publication reaches tens of thousands of its members all around the
world, many of whom do have at least 4 year degrees in physical education,
kinesiology, science, physical therapy and related fields. The NSCA
administrates and awards the CSCS (Certified Strength and Conditioning
Specialist) qualification and Personal Trainer certification. It is widely
regarded as the definitive source of strength training information for
strength coaches and includes many highly qualified scientists in its ranks,
yet it seems quite contented to allow seriously misinterpreted scientific
information to reach its members.

The NSCA is not unique in this regard. Many other certifying bodies and
training organisations in the strength and fitness realm reveal a similar
attitude that their members “are not scientists” and need not be given a
rigorous background to the simplified concepts that are taught to them.

Some lecturers on the popular fitness circuit have casually confused torque,
moments, couples, force-couples and many other standard mechanics
terminology, yet, when I have tried to point out their errors, they have
simply responded with personal attacks. In a different way, the author of
that NSCA article (a prominent strength scientist in the USA and author of
several books) totally refused to accept that his definitions were
incorrect and misleading.

It seems as if many authorities in the fitness and
strength world consider that they never make mistakes and, if they do, they
should never admit them. Their standard method of handling anyone who
comments on their errors is to attack the messenger very emotively and to
totally ignore the incorrectness of the message. And so, the status quo
continues!

While popularisation of difficult concepts is vital for the general public
and some folk, such as the late Carl Sagan were masters at this, are these
organisations and lecturers not doing their members, clients and the
strength/fitness professions a grave disservice? Is there any solution to
this problem?

Dr Mel C Siff

Mel Siff Dismantling a Combined Strength Methods Training Article

Author: Dr Mel Siff Blog  //  Category: Blogs with Supertraining
Here is Mel Siff tearing someone a new one over the inaccuracies in an article that they wrote. —— ————-. Mike Berry, NSCA-CPT & Bill Ebben, MS, MSSW, CSCS. Introduction.