Saturday, March 7, 2015

Swimmingepdia - Cursuri gratuite online de invatare-perfectionare a inotului sportiv



Video matematica cu Proful online – profesor Ioan URSU
D.le Prof., Constat cu bucurie ca sunteti deja printre pretinii mei; am intalnit o relatare ds. activitatea dv. si m-am bucurat mai ales ca si eu, parintii mei, pana in 1973 am fost bacauani [am stat pe str. Bancii, vecin cu casa Bacovia] Eu ca antrenor de inot, acum pensionar la aproape 80 de ani, mai activez [mai ales in weekend, cand am lectii practice la bazinul Tenis Club din Buc.] dar ideie mi s-a parut execelenta versus dorinta mea de a-mi impartasi exeprienta in folosul altora.... Cum as putea proceda ca pe pagina mea [nici nu stiu cum sa-i mai zic ca nu-s atat de preceput...] "despre inot-swimmingpedia", sa lansez o asemenea activitate, evident gratuita si... online deci? Fiti amabil si scrieti-mi la email <scanave@yahoo.com. cateva idei care ar trebui sa le pun in practica, Va multumesc
==========
    [ LA BACAU L-AM AVUT PROF. PE DL. POSTOLACHE...., ANII '50] VA VOI MAI CAUTA, ACUM INCEP 'CERCETAREA'... O ZI BUNA
02/ INCEP A VA CUNAOSTE SITE-UL SI ACTIVITATEA....; ESTE F. REUSITA
03/ Stimate Domnule Profesor...,., {'la inot' cu matematica...., glumesc},
Ce parere aveti ds. asta... [cred ca pareri avem cu totii.., timpul ne omoara....]
Am conceput o formula [matematica...?] de testare a eficientei unui inotator sportiv de performanta. Inspiratia mi-a venit de la un aforism antic {'Festina lente'..., Suetonius/ 'Viata a 12 Caezari'/ 'Grabeste-te... incet'] si dela o cerinta, de bun simt, cunoacuta la inot : cine face miscarile grabit si 'zgarie' sau 'boxeza' apa nu va fi bun inotator - din contra, cine aluneca si nu se grabeste cu orice pret [este vb. ds. tehnica corecta] acela va avea primele reusite care apoi ele pot fi dezvoltate etc., adica ‘grabeste-te... incet’, parca se leaga de ceea ce facem noi in apa...
Astfel,
Am considerat, grosso-modo, corpul inotatorului ca o mica ambarcatiune, 'o nava' in miniatura si am “pozat” legile hidrodinamicei [adica formula Froude-Reynolds de calculare a Rezistentei opusa de apa la Viteza de inaintare ... fiind stiut ca, cresterea Vitezei se realizeaza in ‘progresie aritmetica’ fapt care determina o crestere a Rezistentei dar in ‘progresie geometrica’.., de aici si consecintele pregatirii asidue in companie unei tehnici eficiente [!] 
Deci, efortul depus este din ce in ce in mai mare, dar capacitatea biologica de a rezista la efort este perfectibila prin antrenament / din pacate si prin doping..., dpdv motric miscarile, tehnica trebuie sa fie eficienta si bineinteles ‘cea mai corecta’..

 Iata cum am gandit eu ca am putea evalua obiectiv eficienta{vezi Rev. EFS nr.3/1983+ nr. 2/87}.
In consecinta, am considerat ca la inot [sau chiar alte discipline sportive cu miscari ciclice] singurele elemente obiective care pot avea valori matematice sunt - TIMPUL {Viteza} si TEMPO-ul [Nr. de miscari] – ambele evaluate pe unitate de spatiu / in cazul inotului... o lungime de bazin, adica 50m. 
Aceste doua elemente [Timp/Tempo] sunt variabile iar spiritul sportiv, competitia face ca ele sa aibe sens descrescator [mai putine secunde, mai putine miscari]; pare fortat, dar, mai ales la incepatori sau la cei cu ‘trecut ‘ sportiv [Veteranii/Masters...], nefiind vorba de o ‘lupta pe viata sau moarte’ pentru un record ci dor pentru o justa autoapreciere..., cerinta de a inota corect si cu un tempo convenabil, se poate accepta.

In acest sens, initial, am considerat ca eficienta va fi data de un numar cat mai mic de secunde + un numar din ce in ce mai mic de miscari; astfel a rezultat prima forma a acestui rationament cu formula Timp+Tempo = Eficienta...; dar pt ca valoarea eficientei, luata ca nota [ca la scoala] era invers proportionala cu valoarea ei {suma rezultata era din ce in ce mai mica} am scazut suma dintr-o constanta si astfel am dar sens ’crescator’, mai obisnuit pentru copii sau tineri si am introdus, aleator, cifra 100 (K) {deci daca un inotator parcurgea odata 50 m., in 33 sec. cu 25 de miscari (=58 pct.) si alta data reusea 31“ cu 24 miscari(=55 pct.) valoarea noua nu arata corect o cresterre ci o scadere si nu era convingator,  pt cei neinitiait, ca lor le-a crescut eficienta; pt acest motiv, banal, am ales o Konstanta (100)}

Dar apoi, mi-am dat seama ca si aceasta valoare (K=100) ar putea fi inlocuita cu o alta constanta, care are intaietate, ea fiind  de ordin stric personal si cu  reala stabilitate timp. 

Asa am calculat  “Indicele Personal de Alunecare” (IPA) care reprezinta  corect biotipul uman aflat in apa [ am scazut din lungimea corpului asezat in pozitie tipica de inot(pluta ventrala cu bratele intinse inainte) ... suma Nr. de Kg. care si ele ar fi de dorit sa fie cat mai putine /obezii nu pot face performanta + Numarul dat de masurarea (ca la croitor) a circumferintei subaxilare { un corp ingust va determina o Rezistenta mai mica din partea apei}

Am comunicat si publicat acest material in Rev. EFS, revista noastra de specialitate, si am ‘oferit-o’ antrenorilor....; dar ea nu a avut succes si era normal – ‘cine sa mai stea sa numele si miscarile..?’, fapt care a facut ca acest concept sa ramana pur teoretic si incomod de-al folosi... 

DAR dupa cativa ani [1995] am gasit acelas mod de a gandi la americani, doar ca la ei formula de calcul nu era asa simpla {aduni mental secunde cu miscari si stii ce eficienta ai avut...}, la ei erau formule, tabele care obligau sportivul sa iasa din apa si sa faca urmarirea pe un perete unde erau afisate tabelele. Deci eu cred ca formula mea, conventionala, era mai fiabila decat ce au propus cei de peste Ocean, dar si ei s-au poticnit deoarece ‘NU ERA CINE SA NUMERE MISCARILE’....

Asa s-a intamplat ca in 2009..., cand eu deja trimisesem, prin email,  la foarte multa lume acest concept..., sa apara un mult dorit ceas de mana care putea numara si miscarile inotatorului !!! [ nu pot crede ca britanicii au ‘copiat’ ideia mea sau a americanilor, dar cred ca a fost o intamplare fericita si eu am fost bucuros / am cumaprat imediat un ceas POOL-MATE, asa se numeste produsul de la SWIMOVATE] si chiar am inceput sa-i fac publicitate, recomandandu-l antrenorilor si chiar sportivilor...

Inchei cu prepzentare formulei, in forma actuala. Ea se numeste , in romaneste, ‘Testarea eficientei biomecanice la inot’ {dar eu am preferat acronimul englezesc  BEST – ‘the Biomechanical Efficiency Swimming Test’, suna mai ‘best’....}, care este asa:

BEST = IPA – [TIMP+TEMPO] .....= puncte; la care IPA reprezinta = Lungimea totala a inotatorului intins in pozitie de plutire ventrala (L) – [Numarul de Kg. pe uscat (G) + Nr. de cm. ale Circumferintei subaxilare (Q)] ; [deci -IPA = L – [G+Q]

Domnule Profesor, daca ati reusit sa lecturati acest referat [poate neinteresant sau arid pt un ‘civil ca dv.’...?], am o mare rugaminte care tot incerc s-o cer la cei ca dv.,  dar nimeni nu mi-a raspuns frank pana acum: este acest concept o ‘tampenie’ sau chiar are o justificare cat de cat obiectiva ?

Nu am de gand sa fac din ‘verdictul’ dv., un argument cu care sa conving ‘lumea’..., vreau, simplu si doar la nivel personal, sa stiu daca am ‘gandit bine au ba’....?

Va multumesc,
Prof. Mircea Olaru , Buc, 0722476223 @= scanave@yahoo.com
===========================

Saturday, January 24, 2015

B.E.S.T. - The BIOMECHANICAL EFFICIENCY SWIMMING TEST



B.E.S.T.  =
- The BIOMECHANICAL EFFICIENCY  SWIMMING TEST;  
Formula BEST = IPA  - {Nr. Seconds (Time) + Nr. Movements (Stroke)} / 50m.

The concept B.E.S.T. aphorism has originally the meaning 'Festina Lente' "Hurry slowly" {Suetonius "Life of 12 Caesarus "}.

The famous aphorism may have when swimming, a significant application - 'swim highest speed - using the fewest moves' = efficiency, maximum efficiency.

This scheme calls for making the correct moves swimmer swimming technique is poor when the number of movements will increase and so will decrease the amount of benefit BEST!

Swimming so it can get a high yield movement. Basically athlete development, is a unique blend between 'performance' (50m speed - Time) and 'Mastery' - the most accurate technique to cover the distance of 50m.

Performing on the distance of 50m it is not too complicated but having the correct technique is already directly endeavor to swim irreproachable. Many people  know to swim ... but not everyone can swim right .... !!!

* This climate can lead swimmer orientation towards a possible 'beauty contest' Swimming -designed differently, differently than classical performance, strict, no matter how accomplished, as happens in official competitions .. (see maximal effort, the use of illegal means, doping ... etc.!).

Note subjectivity inherent in any competition 'beauty' can get a genuine spirit of fair play by organizing series of perfectly equal competition in almost equal values of the index using IPA ..

This equality can be evaluated mathematically using IPA criteria (ie personal value, constant, calculated annually), so the race will take place between swimmers conceptually equal or almost equal biomotor (IPA).

SO:

the BEST-Concept (published in the 'EFS Magasine', No 3/1983, Bucharest) could be part of the official sports activities swimming System {Age groups, Masters Competitions, etc.}

Relations between 'effort' and 'technical', closely followed, indicating that these two categories are directly influencing one another. It is known that fatigue damages ... technical execution, and "correct technique" does not produce fatigue!

When swimming, since this is a sports complex combination (effort / technical) amine relationships should be carefully planned so directed by exercising, deeper, to one side (only the 'effort' or not, only the 'art') not to bring disruption in the evolution of a willing swimmer to swim faster and better.

In these circumstances it is interesting requirement for coaches to exclude the temptation to force preparing children [with effort in preparing Seniors] by programming, use some type of 'effort', at optimum level acceptable for the pre-puberty period  - in the company of benefits 'technique' of the highest quality.

This optimal climate is found in the concept of methodological, organizational, suggestively called 'BEST' (abbreviation for The Biomechanical Efficiency Swimming Test) which represents an innovative approach to testing the technical capacity of an individual who wants to know exactly, mathematically, where he arrived in its shares reaching a certain perfection forward in the water.

Swimming optimal efficiency is achieved when trying to achieve a higher speed of the movement in company economy, that is,
'the highest speed - the fewest moves' ...!
                                     according to the formula:
BEST = IPA  minus {No. Seconds + No. Movements} / 50m.

Applying this behavior if the water gives the performer advance certain that proper technique is especially suitable personal capacity of effort; preparing children for compliance 'formula', we forbid overload (hasty executions, forced, "first at all costs ...") and requires the use of optimal effort (long tempo, sliding track, rowing powerful and accurate : i.e. - the correct technique).
============   

BEST Definision
Les Difinisions du BEST           
BEST - Definitionen
Definitii BEST

1. The corect swim-technique means the efficiency of the movements in the water; it can be calculated by this way: add the number of the Seconds(Time) and the number of the Stroke-cicles (by 50m) and this sume will be extracted from the other constant sume the value of the Index of the Personal Gliding (IPG). That mean the BEST formule ist so:  IPG – {’T’ + ’S’}

1. La tehnique corecte de la nage implique l’efficience du mouvement dans l’eau.
’’Tester l’efficience / l’efficacite biomecanique dans l’eau’’ [ The
Biomechanical Efficiency Swimming Test B.E.S.T. ....] ce calcule comme suit:
- aditioner le temps (’T’) au les mouvement (par 50m) (’M’), la
somme se deduit d’une valeur constante l’Indice Personel de Glisse (I.P.G.) c’este a dire, la formule BEST: IPG – [’T’+’M’] = ...offre le meilleur resultat, (points BEST).


1. Die korrekte Technik setzt eine effiziente Fortbewegung im Wasser voraus...”Testen der biomechanischen Effizienz beim Schwimmen” (best) Diese wird wie folgt berechnet: wir addieren die zwei Werte (”Zeit” und ”Züge”); die Summe wird aus einer Konstante  Persönlicher Gleit Index (PGI). D.h.: { 100/PGI } – { Zeit + Züge } =........BEST punkte.

1. Tehnica corecta inseamna eficienta de miscare in apa…
“testarea eficientei biomecanice la inot”(BEST) se calculeaza astfel:
adun ‘timpul’(‘T’) cu ‘vaslirile’(‘V’) suma lor o scad dintr-o valoare
constanta Iindicele Personal de Alunecare (IPA). adica - IPA  { Ttimp + Vasliri } = ...BEST puncte

=============

2/The objectivity of the ‘best formula’ results from this new exercise of logic: ‘we add two value (Time+Stroke), this values have their sense descendent (!)…, and, after we substrate this sum from one constant value IPG points’.
In this mod we can obtain (very easy, by mental way) the supreme value of the swimming efficiency.

2. La logique du BEST et son objectivite: J’additionne deux valeurs, deux quantites , le Temps ’T’. et le mouvement ’M’. (des cicles de bras pour Libre et pour le Dos 2 bras alternative, pour Brasse et pour Papillon une cicle concomitente, seulmant), cette 2 valeur qui ont un sens (desirable...!) decroissants et apres je deduis de la valeur constante (anterieur calcule) IPG’] et j’obtiens (tres facile et vite / by mental way...) la valeur de la prestation dans l’eau.

2/ Die Objektivität des Konzeptes und der Formel ”BEST” baut auf
die folgende Logik auf: „ wir addieren zwei Größen, (Zeit + Züge),
* die einen absteigenden Sinn verzeichnen. Diese werden nachher
von der Konstante „PGI” abgezogen. Das Ergebnis (einfach + schnell / mental way...) stellt den Wert der Leistung im Wasser dar.

2/ Obiectivitatea conceptului si a formulei ‘BEST’ rezida din urmatoarea logica: ‘adun doua marimi, (timpul / ’T’ + vaslirile / ’V’) care au sens descrescator(!), - dupa care, le scad din constanta ‘IPA’ si obtin (facil + repede / mental way ...) valoarea prestatiei in apa’.


3/The index personal of gliding (IPG) is lake a ‘credit card’ (the validity is minimum one year): with this IPG we can organize the series of the race in perfect ‘faire-play’ (indifferent of the age) the competitors with same or appropriate values will be introduce in the same series …the periodical calcul of this IPG formula is found with regarding to the hydrodynamics principle (Reynolds+Froude), so: ‘’from the value of the maximum longer of the body (ventral float position)(L.) we will substrate the sum of the Nr. of Kgr. (weight) with the Q. (nr. of cm. of the circumference of the upper thorax in deep expiration). ‘L.’– ( ‘Kgr.’ + ‘Q.’)

3. L’indice de la Glisse dans l’eau (IPG) este une valeur constante,
comme un card banquare, qui le calcule annuellement: ’L.’ - la somme resulte par addition de ’Kgr.’+ ’Q.’, c’est a dire: [ L. - [ Kgr. + Q ] = la valeur anuelle plus constante de IPG en points....
’L.’ – longuer maximale du corp entierre (la possision fondamentale de nage- planche de flotation du corp sur le ventre ou sur le dos verrifie surterrre);
’Kgr.’ - Kilogrames du corp, sur terre;
’Q.’ – le diametre en cm. de la cage thoracique en expir profonde, et le resultat de cette formule que l’on nomme Indice Personel de Glisse (IPG) dans l’eau, avec ses point et d’une valeur constante, annuelle.


3/ „Der Persönliche Gleitindex” (PGI ist wie eine Kreditkarte, die 1
Jahr gültig ist (kard-annual)). „L” = die maximale Körperlänge / ventral float position; „kgr” = das Gewicht in Kilogramm  + „Q” = Durchmesser/cm des oberen Brustkorbabschnittes bei tiefer Ausatmung

3/“Indicele Personal de Alunecare(IPA este ca un kard-annual)
Calculat astfel :‘L.’ – (kgr. + Q), in care - ‘L.’ = lungimea maxima a corpului / pluta intinsa, ventral  din care se scade suma  ’Nr.Kgr.’ (greutatea in kilograme) + ‘Q.’ = diametrul / cm. subaxilar in expiratie profunda = the “Index of Personal Gliding “ (IPG)

==============

4/The valability of the Index Personal of Gliding (IPG) results from that all criteria selected to make the series for the challenge was selected from the normal natural selection:
*when the longer of the body is big…
*when the weight of the body is light...
when the frontal section of the body is small
the float, the gliding and the swimming speed will be more efficiency to advance better withone correct technique !


* 4. L’application (calculation) annuelle du kard IPG non peliee du
genne, et de l’age du suject (!), sont donnes comme une unique
critere pour departager / organiser les eventuellle competitions (des
series avec une real ’fraire-play’) de concurs de ’excelence tehnique de nage’ par 50m, car ce sont les criteres induits par la selection
naturelle:
- plus que le corp est long .....
- plus que le corp est leger....
- plus que le corp est etroit ....
cet corp peut glisse et avance plus bien, plus efficace !

4/ Die Gültigkeit des „kard-annual” (PGI – Persönlicher GleitIndex),
unabhängig von Geschlecht oder Alter der Angewiesenen..., ist darauf zurückzuführen: die Kriterien, die ausgewählt wurden, um zu
bestimmen, inwiefern die „annual kard” als Instrument zur
Unterscheidung von Leistungen oder Veranstaltung von Schwimm-
Wettkämpfen verwendet werden kann, gehen auf die natürliche
Auswahl zurück:
je länger ein Körper ist (l.),
je leichter ein Körper ist (kgr),
je schmaler ein Körper ist (q.),
desto effizienter wird er schwimmen, gleiten oder sich im Wasser fortbewegen.

4/ aplicabilitatea ‘annual kard-(ului)’(IPG – Index of Personal Gliding ), indiferent de varsta subiectilor …, este data de faptul ca criteriile alese, pentru folosirea sa ca instrument de departajare / organizare a intrecerilor de inot sportiv , sunt cele induse in selectia naturala:
# cu cat un corp este mai lung (l.),
# cu cat un corp este mai usor, (gr.)
# cu cat un corp este mai ingust (q.) cu atat mai eficient pluteste, aluneca sau inainteaza !

Numararea ciclurilor de vaslire se poate face in mod liber (vizual) sau cu un ‘counter’ mecanic / electronic (PoolMate/Swimovate) care sa simplifice contabilizarea mentala si deci a unor eventuale erori.
(variante)
 ---------------------------------------- 
http://swimming-synergy.blogspot.com/2015/01/best-biomechanical-efficiency-swimming.html,

Bibliografie selectiva:
M. Sgrumala, I. Bidoaie –‘Proiectarea navelor mici, Ed. Tehnica, Buc. 1978, p.17,
(Principiul Reynolds – Froude, bibl.: Saunders, N-York, 1957))
M.Olaru – INOT – manual metodic, Ed. Sport-Turism, 1982, p.184,
M.Olaru – Rev E.F.S. nr 3/1983 p.49 "Testarea eficientei biomecanice la inot'.
M.Olaru – Rev E.F.S. nr. 2/1987, p.27 'Ierarhizarea numerica a prestatiilor inotatorilor'.
M.Olaru – 'Să nu ne temen de apă', Ed. Sport-Turism, 1988, p.90, sport-book
M.Olaru – Note de curs-inot, Univ. Ecologica Buc., Ed. Universitara, 1991, p. 123
M.Olaru – Afise editate de FRN & Canada Swimming Natation,1995, color, 4000
E.Hines – 'Fitness Swimming', Human Kinetics, p.27, ('Swimming Golf'), 1995.
D. Hannula- “ Coaching Swimming succesfully’’, p.78 ( Minimum-Nr-.swims),1995
M.Olaru – Rev.'Stiinta Sportului', ed CCPS, nov 1999, Referat - ‘Un nou concept in pregatirea inotatoriilor'.
M.Olaru – ‚’Despre inot… cu Mircea Olaru’,CD+4 postere, ed. SSE, 2007, 1000 ex.
M. Olaru – referat la sesiunea de comunicari a Univ. Spiru Haret, Buc, 2008
’Testarea eficientei biomecanice la inot’
E. Maglisho – ’Stroke Counting Drills’’, from Swimming Fastes, Hk Book ,2003
ooOoo

==================
by LINKEDIN


·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
[by Google translate...] Hi Dan, I was almost sure that your question will be addressed, in turn, the 4 stroke- swimming sport ....
Frankly, I expected this, even eagerly, because I want to give you a comment less expected, here it is:
„Question asked by Dan Lynch beautiful ...... it is a simple question and yet a difficult question as the title of a good book about swimming ...

I am almost 80 years old and about. 65 of them I spent in the water or on the edge of the pool.
For me, the question of Dan, is universally valid, not only for Freestyle but also for all other sports swimming techniques.

* Respecting the FINA rules of the contest is to know that we have 4 different stroks of competition ... but in terms Biomotric, we have, analytically only: 2 positions of the body [ventral,dorsal] and all rowing limbs, which actually resemble one if they think their propulsive effect {agree with the explanation given by Doc. Counsilman - helicoidally character of the movement of swimming?} (A).

* If you want to be appreciated as a good swimmer, you first need to know to slip easily through the water as if someone invisible pulls a rope ... [B],

* When you finish the race, even with a world record ... it does not look tired breathing hard[C].

To understand these three important requirements, I have in mind three words retained in a German study, from the beginning of my career as swimming coach, these are three adjectives: "DEEP", "STRONG" and "SELDOM".

Generally this means that the body must submit without damaging the technique:

* because of rowing as 'deep' (I) [not 'delete' water, and the body 'well sunk' to lose as much weight / Archimedes]

* because of rowing as 'strong' (II) {end of each movement should be vigorous, consistent with a final 'whipped'} and

* due to movements to ensure 'effective advance' (III) {i.e. a requirement to respond optimally balanced against the expression: - "swim with the fastest speed with as few moves" / see The Concept of Biomechanical Efficiency Swimming Test (BEST ) calculated mathematically to a constant value given by staff sliding Index (IPA)} ....

http://swimming-synergy.blogspot.com/2015/01/best-biomechanical-efficiency-swimming.html,

In conclusion: If anyone agrees with the above link and read .... I can say that swimming is, for me, first of all, "The Art of breathing", without effort!

In my opinion the most important element in the competition, is breathing, respiratory comfort, i.e. without mechanical fatigue without the 'oxygen debt', as if they did not swim {The Golden rule here is due to swimming: "How much air inhale as much air must expire "}.

So I think I answered the question of Dan and thank you ...[sorry for my Google translate] 
i
  • Cu 11 zile în urmă
Roberto G., Mark Moody apreciază aceasta 

==================
·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
If you want contact me, please send email at : scanave@yahoo.com

  • Cu 4 zile în urmă
Dan Lynch apreciază aceasta
==============
·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
In agreement with the percentages of time assigned to each stroke, from 4 to in event IM, well tested and optimized percentages used by Canadian specialists in a race IM (400m especially) is correctly made whether to swim Dolfin consume approx. 22.5% of the total time(sec/"), 25.0% for Backstroke, 30.0% for Breastroke and 22.5% for to Crawl ...
have a nice day... Mircea

  • Cu 3 zile în urmă
Dan Lynch, Dr Richard N. apreciază aceasta
================   
·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
You can not get a good swimmer in individual-mixtly if you can not swim the Breastroke very, very good ....
===================   
·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
In agreement with the percentages of time assigned to each stroke, from 4 to in event IM, well tested and optimized percentages used by Canadian specialists in a race IM (400m especially) is correctly made whether to swim Dolfin consume approx. 22.5% of the total time(sec/"), 25.0% for Backstroke, 30.0% for Breastroke and 22.5% for to Crawl ...
have a niec day... Mircea

  • Cu 3 zile în urmă
Dan Lynch, Dr Richard N. apreciază aceasta
===========     
·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
Sorry, I'm obligate to repeat one more time:
Mircea Olaru

"In agreement with the percentages of time assigned to each stroke, from 4 to in event IM, well tested and optimized percentages used by Canadian specialists in a race IM (400m especially) is correctly made whether to swim Dolfin consume approx. 22.5% of the total time(sec/"), 25.0% for Backstroke, 30.0% for Breastroke and 22.5% for to Crawl ..."

have a nice day... Mircea

  • Cu 2 zile în urmă
Dan Lynch apreciază aceasta
===============
·  Mircea Olaru
pensionar, in weekend la Tenis Club 2000
Sorry, I'm obligate to repeat one more time:
Mircea Olaru

"In agreement with the percentages of time assigned to each stroke, from 4 to in event IM, well tested and optimized percentages used by Canadian specialists in a race IM (400m especially) is correctly made whether to swim Dolfin consume approx. 22.5% of the total time(sec/"), 25.0% for Backstroke, 30.0% for Breastroke and 22.5% for to Crawl ..."

have a nice day... Mircea

  • Cu 2 zile în urmă
Dan Lynch apreciază aceasta