Relações entre desempenho em 200m nado crawl e variáveis cinéticas do teste de nado estacionário

Abstract

RESUmO O objetivo deste estudo é relacionar o desempenho (DES) em 200m nado crawl e variáveis cinéticas do teste de nado estacionário (TNE): impulso total (IMP), taxa de variação de impulso (TIMP) e pico de força (PF). De 12 nadadores competitivos (idade média de 18,3 ± 2,9 anos) foram obtidos IMP, TIMP, PF e DES em 200m nado crawl (este transformado em unidades pontuais).

Repetibilidade e aplicação de testes de nado estacionário para nadadores recreacionais

“…This was used to determine the maximum force (the highest force value recorded in the test) and the average force (arithmetic mean of force values recorded in the test). In addition to these variables, in the tethered swimming test with full crawl stroke, the mean impulse was determined as the area under the force-time curve 10 . Of the three 50-m tests, only the one that presented the shortest time was analyzed, being determined by the average of the two times obtained by timekeepers.…”

“…The tethered swimming test has been used by coaches and researchers to evaluate swimmers 3,5,6 , since, considering crawl stroke, the test presents some similarities with non-tethered (free) swim for stroke rate and for some physiological responses such as blood lactate concentration, heart rate and subjective perception of effort 6,8,9 . In addition, several studies have identified an association between the outcome of the tethered swimming test and sports performance 3,10 and have verified the test repeatability for competitive swimmers 7,8,11 .…”

“…Thus, considering the large number of recreational swimmers and that the tethered swimming test may be useful for coaches to evaluate the technique and force production by swimmers, the aims of this study were to verify the repeatability of the tethered swimming test for the upper limbs (arm stroke), lower limbs (leg kicking) and full crawl stroke, and to verify the association between performance over the 50-m test and tethered swimming tests with recreational swimmers. According to previous studies with competitive swimmers 3,7,8,10,11 , it has been hypothesized that there is repeatability for the tests and that there is also an association between the results of the tethered swimming test performed with crawl stroke and crawl stroke performance of recreational swimmers.…”

Interpretation of Propulsive Force in Tethered Swimming Through Principal Component Analysis

“…In fact, this parameter has been considered in regression models that included it as a swimming performance predictor variable, [2][3][4] regardless of the competitive level and/or style of the athletes assessed, similar to the findings recorded in running 11 and jumping. 12 Knowing that impulse is calculated by the product of force and time, visualized from the area under the force-time curve, 10 changes in impulse, in swimming, are subject to the modification of the following five fundamental parameters: 1 minimum force, force generated at the start of the propulsive action, 2 peak force, largest magnitude of force generated in the propulsive action, 3 time to peak force and rate of force development, 4 and duration of the propulsive action.…”

Relação entre a força propulsora e a velocidade nos quatro estilos competitivos da natação

“…O estudo clássico de Magel (1970) MOTA, 2010;COSTILL et al, 1980;DOPSAJ et al, 2002;MARINHO;GOMES, 1999;MARINHO, 2002 MARINHO;ANDRIES JÚNIOR., 2004; SIDNEY; PELAYO; ROBERT, 1996; SEIFERT; TOUSSAINT; ALBERTY, SHNITZLER; CHOLLET, 2010;). Embora os outros estilos competitivos já tenham sido estudados anteriormente (MOROUÇO et al, 2008, 2011, YEATER et al, 1981 nenhuma atenção foi dada ao desempenho envolvendo membros superiores e inferiores.…”