Gender effect on the relationship of time limit at 100% ??VO2max with other bioenergetic characteristics

Billat, Véronique; Beillot, J.; Jan, Jacqueline; Rochcongar, P.; Carré, François

doi:10.1097/00005768-199608000-00016

Cited by 67 publications

(60 citation statements)

References 24 publications

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“…This was not so in a study performed on adult high-level male and female middle-distance runners (49 and 40 ml kg Ϫ1 for the males and females, respectively, pϾ0.05) [7]. However, this last study was performed on a treadmill, and no studies have compared the anaerobic work capacity between genders on the track in elite athletes.…”

mentioning

confidence: 93%

“…However, this study [5] included in Wilkie's model, standard values for maximal anaerobic capacity and a VO 2 max , which were measured on a cycle ergometer or on a treadmill while the performance and the energy cost of running were measured on the track. It is well known, however, that VO 2 max is lower in cycling compared with a running exercise [6] and that the energy cost of running on a treadmill is not similar to running on a track [7,8]. Since this study was performed 10 years ago [5], technological progresses have made it possible to measure all the factors in field experiments by using breath-by-breath portable oxygen analyzers [8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…) [14], this is less reliable concerning the anaerobic work capacity [7,15,16]. A significant difference was reported between trained male and female adolescents [17].…”

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confidence: 99%

“…, so that the exhaustion occurs within 20 minutes for each subject [7]. The velocity increments between the stages were set at 1 km h Ϫ1 .…”

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confidence: 99%

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Energetics of Middle-Distance Running Performances in Male and Female Junior Using Track Measurements

Billat

Lepretre

Heugas

et al. 2004

JJP

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Middle-distance running performances (800-1,500 m) relies on both aerobic and anaerobic metabolisms [1]. The relative contribution of each metabolic pathway during a middle-distance run has already been reported in elite athletes, but the performance was for males only performing on a treadmill [2]. Weyand et al. [3] have demonstrated that middle-distance performances depended more on aerobic capacity than on anaerobic capacity. Indeed, Weyand et al. [3] have shown that, in sub-elite runners (2 min 01 sϮ5 s and 2 min 32 sϮ6 s over 800 m for males and females), the peak oxygen deficit was a moderately strong predictor of middle-distance performances (38 and 27% of the variance of the performances over 800 and 1,500 m). Therefore, the energetic factors of performance were expressed with different units: the anaerobic one was reported as capacity (the "anaerobic work capacity" in J), and the aerobic one was expressed as a power (the "maximal aerobic power" in W).Wilkie's model (see method section) gives a physiological background of the hyperbolic function between the total power output (Ė r ) and the exercise duration. According to Wilkie's equation of [4], the aerobic and anaerobic factors of performance can be calculated with the same dimension because it allows the aerobic power (Ė r max aero ) to be distinguished from the Japanese Journal of Physiology, 54, 125-135, 2004 Key words: anaerobic, maximal oxygen uptake, gender, adolescence. Abstract:The aim of this study was to determine the energetic factors of middle-distance running performance in junior elite runners according to gender and by using measurements from on-track performances. Fifteen elite runners (8 males and 7 females) were investigated by means of an incremental test and an all-out run over 600 m performed with a 2-d interval.We calculated (1) the aerobic maximal power (Ė r max aero , in W kg Ė r max aero explained most of the variance in the performance (the personal best performed 8 weeks later) between genders: 65 and 79% over 800 m (T 800 ) and 1,500 m (T 1,500 ). For females, Ė r max aero explained most of the variance of T 1,500 (r 2 ϭ0.66), and Ė r max anaero improved this prediction (r 2 ϭ0.84). No energetic factor predicted the performance on 800 m run in males. In elite junior athletes, the energetic model with individual data measured over an all-out 600 m performed on a track, provides an explanation for most of the variance in middle-distance running performances between genders. The distinction between aerobic power and anaerobic power allowed an improvement in the prediction of middle-distance running performances. [The Japan-

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Section: Introductionmentioning

confidence: 99%

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Energetics of Middle-Distance Running Performances in Male and Female Junior Using Track Measurements

Billat

Lepretre

Heugas

et al. 2004

JJP

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“…A EM é pouco sensível na predição de desempenho, e sua variação (15%) 9 influencia a iVO 2 max mesmo em grupos de atletas com valores similares de VO 2 max 20 . A iVO 2 max também não apresentou correlação com o desempenho (4km r= -0,33, p=0,239 20km r= -0,13, p=0,649), ao contrário dos achados de alguns autores 9,22 que consideram a iVO 2 max capaz de predizer desempenho em provas de curta duração (3-5min), tendo em vista a grande contribuição aeróbia (>84%) em provas de 1500m em corredores 18 . Entretanto, devemos enfatizar a contribuição relativa dos sistemas energéticos aeróbio e anaeróbio nas distâncias das provas que foram analisadas.…”

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Relação entre índices fisiológicos aeróbios e desempenho em provas de curta e média

Sangali

Campos

Gobbo

et al. 2013

Rev. Bras. Cineantropom. Desempenho Hum.

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Resumo -Poucos são os estudos que possibilitam verificar quais as respostas fisiológicas são associadas ao desempenho em uma amostra de ciclistas de elite nacional. Portanto, o objetivo do presente estudo foi determinar e relacionar diferentes índices fisiológicos aeróbios com o desempenho em testes contra relógio de 4 e 20km em ciclistas de alto nível. A amostra foi composta por 14 ciclistas profissionais de elite nacional do sexo masculino (28,5 ± 4,7 anos, 73,47 ± 8,29 kg, 176 ± 6,76 cm), que realizaram um teste progressivo em laboratório para a determinação do consumo máximo de oxigênio (VO 2 max: 62,23 ± 8,28 ml·kg·min -1 ), intensidade relativa ao VO 2 max (iVO 2 max: 500,83 ± 58,65 w), economia de movimento (EM: 0,1166 ± 0,0362 ml·kg·min·w -1 ) e 1º e 2º limiares ventilatórios (LV1: 348,21 ± 43,26 w; LV2: 417,86 ± 60,79 w, respectivamente). Também foram submetidos a duas provas de 4 e 20km contra relógio. Para correlação entre os índices fisiológicos e desempenho, foi utilizado o coeficiente de correlação de Pearson (p< 0,05). Não foi encontrada correlação entre os índices fisiológicos (VO 2 max absoluto e relativo, iVO 2 max, EM, LV1 e LV2) e o desempenho de 4km (r= 0.38; 0.16; -0.33; 0.20; -0.50; -0.20, respectivamente) (28.5 ± 4.7 years old, 73.47 ± 8.29 kg, 176 ± 6.76 cm), who performed a progressive test in laboratory to determine maximal oxygen consumption , intensity relative to VO 2 max (iVO 2 max: 500. 83 ± 58.65w), movement economy (EM: 0.1166 ± 0.0362 ml•kg•min•w-1), and the first and second ventilatory threshold (LV1: 348.21 ± 43.26 w; LV2: 417.86 ± 60.79 w, respectively (r= 0.38; 0.16; -0.33; 0.20; -0.50; -0.20, respectively) and 20 km (r= 0.24; 0.01; -0.13; -0.12; -0.48; -0.19, respectively) time trial in high level athletes. These results suggest that these variables are not able to explain the performance in time trials in the respective lengths, probably due to the subjects' homogeneity.

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Factors Influencing Endurance Performance, Strength, Flexibility and Coordination

Mittleman¹,

Zacher²

2000

Women in Sport

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Gender effect on the relationship of time limit at 100% ??VO2max with other bioenergetic characteristics

Cited by 67 publications

References 24 publications

Energetics of Middle-Distance Running Performances in Male and Female Junior Using Track Measurements

Energetics of Middle-Distance Running Performances in Male and Female Junior Using Track Measurements

Relação entre índices fisiológicos aeróbios e desempenho em provas de curta e média

Factors Influencing Endurance Performance, Strength, Flexibility and Coordination

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