Abstract
The objective of the present study was to determine the relationship between time limit (Tlim) at VO2Max velocity (VVO2Max) and the variables VO2Max, VVO2Max, running economy (RE), ventilatory threshold (VT), strength test (9-10 maximum repetitions), velocity at maximal anaerobic running test (VMART), vertical jump test and body fat percentage. The sample was composed of 18 male volunteers, aged between 18 and 45 years old, non-athletes, but physically active. The study was carried out during fi ve visits, on non-consecutive days and at approximately the same time each day: visit 1 - signature of informed consent form, medical history, anthropometric assessment, aerobic power test and familiarization with Tlim test; visit 2 - RE test and Tlim test; visit 3 - familiarization with VMART test; visit 4 - familiarization with vertical jump and 9-10 maximum repetition tests and VMART test; visit 5 - vertical jump and 9-10 maximum repetition tests. Low (r = 0.220 to – 0.359) and non-signifi cant correlations (p = 0.281 to 0.935) were observed between Tlim and the selected variables, characterizing the low predictive value of Tlim for the sample studied. Thus, and because of the considerable inter-individual variability in Tlim, no variable was identifi ed that was capable of satisfactorily predicting Tlim.
Highlights
The objective of the present study was to determine the relationship between time limit (Tlim) at VO2Máx velocity (VVO2Máx) and the variables VO2Máx, VVO2Máx, running economy (RE), ventilatory threshold (VT), strength test (9-10 maximum repetitions), velocity at maximal anaerobic running test (VMART), vertical jump test and body fat percentage
A partir das argumentações de Noakes[3], outras variáveis com características neuromusculares e não-aeróbias foram associadas à endurance aeróbia, como a força e a potência muscular, a potência nãoaeróbia e as propriedades elásticas da musculatura[4]
Considera-se um objeto de estudo interessante, determinar se esta variação no T V lim VO2Máx pode ser explicada devido a diferenças em componentes de origem cardiorespiratória, neuromuscular e/ou composição corporal
Summary
DETERMINANTS OF TIME LIMIT AT VELOCITY CORRESPONDING TO VO2MAX IN PHYSICALLY ACTIVE INDIVIDUALS. O objetivo do presente estudo foi determinar a relação do tempo limite (Tlim) na velocidade do VO2Máx (VVO2Máx) com as variáveis VO2Máx, VVO2Máx, economia de corrida (EC), limiar ventilatório (LV), força isotônica (determinada pelo teste de 9-10 RM), velocidade no teste máximo de corrida anaeróbica (VMART), impulsão vertical e percentual de gordura (%G). A amostra foi composta por 18 voluntários do sexo masculino, com idade entre 18 e 45 anos, não atletas, regularmente ativos. Foram observadas correlações baixas (r = 0,220 a - 0,359) e não significativas (p = 0,281 a 0,935) entre Tlim e as diversas variáveis selecionadas, o que caracteriza uma baixa qualidade preditiva para o TLim na amostra estudada. Neste sentido e tendo em vista a considerável variabilidade inter-indivíduos do TLim, não foi encontrada uma variável que pudesse predizê-lo satisfatoriamente. Palavras-chave: Resistência física; Corrida; Consumo de oxigênio; Composição corporal; Força muscular
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