Reproducibility of running time to exhaustion at &amp;OV0312;O2max in subelite runners

Billat, Véronique; Renoux, Jean C.; Pinoteau, Jacques; Petit, Bernard; Koralsztein, J. P.

doi:10.1249/00005768-199402000-00018

Cited by 155 publications

(103 citation statements)

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“…hese have traditionally been shown to have poor reliability with coeicients of variation ranging from 15.1 to 25% [7,8] Similar indings have been reported in both cycling [9] and swimming [10]. Hinckson and Hopkins [17] used a variety of approaches to produce estimates of test-retest error of measurement calculated from times to exhaustion.…”

Section: Discussionmentioning

confidence: 78%

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A Novel Field Test to Determine Critical Speed

Galbraith¹,

Hopker²,

Jobson³

et al. 2011

J Sport Medic Doping Studie

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The aim of this study was to assess the reliability of a novel ield test of critical running speed (CS). Ten trained male distance runners completed a familiarisation trial plus three separate experimental trials on a standard 400 m athletics track. Each trial consisted of three distances (1200, 2400 and 3600 metres) that were selected to produce inishing times in the region of 3, 7 and 12 minutes respectively. Participants were instructed to cover the set distance in the fastest time possible. Participants rested for 30 minutes between efforts. Data were modelled using the linear distance-time model, described by the equation: d = (CS x t) + ARC, where: d = distance run (m), t = running time (s), and ARC = anaerobic running capacity (m). Results demonstrated a coeficient of variation (CV) of 2.0% (95% conidence limit (95% CL): 1.4-3.8%) for trials 2-1 and 1.3% (95% CL: 0.9-2.4%) for trials 3-2. There was no signiicant difference in CS (m s -1 ) across trials (P<0.05). The limits of agreement were ±0.27m s -1 of the measure for trials 2-1 and ±0.18 m s -1 for trials 3-2. ARC proved to be less reliable with a group CV of 18.4% (95% CL: 13.5-39.9%) for trials 2-1 and 9.8% (95% CL: 7.0-19.6%) for trials 3-2. Although the assessment of ARC is less reliable, CV data are similar to those reported previously during laboratory-based testing.

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Section: Discussionmentioning

confidence: 78%

“…Constant speed trials have been shown to have poor reliability with coeicients of variation ranging from 15.1% to 25% [7,8]. his is supported by similar research in both cycling and swimming, which also demonstrated the poor reliability of constant power/speed trials [9,10].…”

Section: Introductionmentioning

confidence: 76%

A Novel Field Test to Determine Critical Speed

Galbraith¹,

Hopker²,

Jobson³

et al. 2011

J Sport Medic Doping Studie

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“…Grande parte das evidências acerca da relação entre T lim V VO2Máx com as variáveis independentes, investigadas no presente estudo, envolveram grupos de atletas [9][10][11][12] , ao passo que somente a pesquisa de Blondel et al 20 apresentou uma amostra com características similares (i.e. estudantes de educação física).…”

Section: Discussionunclassified

Determinantes do tempo limite na velocidade correspondente a VO2máx em indivíduos fisicamente ativos

Ribeiro

Santos²,

Lima

2008

Rev. Bras. Cineantropom. Desempenho Hum.

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RESUMOO objetivo do presente estudo foi determinar a relação do tempo limite (T lim ) na velocidade do VO 2Máx (V VO2Máx ) com as variáveis VO 2Máx , V VO2Máx , economia de corrida (EC), limiar ventilatório (LV), força isotônica (determinada pelo teste de 9-10 RM), velocidade no teste máximo de corrida anaeróbica (V MART ), 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. O estudo foi realizado em cinco visitas, em dias não consecutivos e aproximadamente no mesmo horário, compostas de: visita 1 -assinatura do termo de consentimento, anamnese, avaliação antropométrica, teste de potência aeróbia e familiarização ao teste de T lim ; visita 2 -teste de EC e teste de T lim ; visita 3 -familiarização ao teste de V MART ; visita 4 -familiarização aos testes de impulsão vertical e 9-10 RM e teste de V MART ; visita 5 -testes de impulsão vertical e 9-10 RM. Foram observadas correlações baixas (r = 0,220 a -0,359) e não signifi cativas (p = 0,281 a 0,935) entre T lim e as diversas variáveis selecionadas, o que caracteriza uma baixa qualidade preditiva para o T Lim na amostra estudada. Neste sentido e tendo em vista a considerável variabilidade inter-indivíduos do T Lim , não foi encontrada uma variável que pudesse predizê-lo satisfatoriamente.Palavras-chave: Resistência física; Corrida; Consumo de oxigênio; Composição corporal; Força muscular. ABSTRACTThe objective of the present study was to determine the relationship between time limit (T lim ) at VO 2Máx velocity (V VO2Máx ) and the variables VO 2Máx , V VO2Máx , running economy (RE), ventilatory threshold (VT), strength test (9-10 maximum repetitions), velocity at maximal anaerobic running test (V MART ), 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 T lim test; visit 2 -RE test and T lim test; visit 3 -familiarization with V MART test; visit 4 -familiarization with vertical jump and 9-10 maximum repetition tests and V MART 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 T lim and the selected variables, characterizing the low predictive value of T lim for the sample studied. Thus, and because of the considerable inter-individual variability in T lim , no variable was identifi ed that was capable of satisfactorily predicting T lim .

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“…Even using welltrained cyclists, Jeukendrup et al [23] reported CoV values ranging between 17 and 40%. In contrast with TTE protocols, testing protocols that employ a fixed quantity of work, distance or time are reported to be more reliable [2,17,23,28,33,34]. However, we recognise that in conducting the present study we have based our field estimates of CP on laboratory estimates derived through TTE protocols.…”

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confidence: 94%

High Agreement between Laboratory and Field Estimates of Critical Power in Cycling

et al. 2013

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Karsten, B., Jobson, S. A., Hopker, J., Jimenez, A., Beedie, C. (2014). High Agreement between Laboratory and Field Estimates of Critical Power in Cycling. International Journal of Sports Medicine, 35 (4), 298-303The purpose of this study was to investigate the level of agreement between laboratory-based estimates of critical power (CP) and results taken from a novel field test. Subjects were fourteen trained cyclists (age 40 +/- 7 yrs; body mass 70.2 +/- 6.5 kg; O-2max 3.8 +/- 0.5 L center dot min(-1)). Laboratory-based CP was estimated from 3 constant work-rate tests at 80%, 100% and 105% of maximal aerobic power (MAP). Field-based CP was estimated from 3 all-out tests performed on an outdoor velodrome over fixed durations of 3, 7 and 12 min. Using the linear work limit (W-lim) vs. time limit (T-lim) relation for the estimation of CP1 values and the inverse time (1/t) vs. power (P) models for the estimation of CP2 values, field-based CP1 and CP2 values did not significantly differ from laboratory-based values (234 +/- 24.4 W vs. 234 +/- 25.5 W (CP1); PpublishersversionPeer reviewe

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Reproducibility of running time to exhaustion at &OV0312;O2max in subelite runners

Cited by 155 publications

References 0 publications

A Novel Field Test to Determine Critical Speed

A Novel Field Test to Determine Critical Speed

Determinantes do tempo limite na velocidade correspondente a VO2máx em indivíduos fisicamente ativos

High Agreement between Laboratory and Field Estimates of Critical Power in Cycling

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