Caracterização da curva do lactato sanguíneo e aplicabilidade do modelo Dmax durante protocolo progressivo em esteira rolante

Pires, Flávio de Oliveira; Lima‐Silva, Adriano Eduardo; Gagliardi, João Fernando Laurito; Barros, Ronaldo Vilela; Kiss, Maria Augusta P. D.

doi:10.1590/s1517-86922006000200003

Cited by 7 publications

(6 citation statements)

References 30 publications

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“…Denadai et al (18) verified that the V 3.5 presented no significant difference related to the MLSS, whereas Pires et al (34) compared the V 3.5 and V DMAX and found no significant difference between the methods, besides that the authors verified a significant correlation between them (r = 0.65; p , 0.05). Corroborating with this finding, in this study, the method proposed by Cheng et al (16) presented a very large correlation with other laboratory methods (Table 4), indicating the possibility of using this method to predict the AT.…”

Section: Discussionmentioning

confidence: 97%

Validity of Carminatti's Test to Determine Physiological Indices of Aerobic Power and Capacity in Soccer and Futsal Players

Dittrich

Silva²,

Castagna³

et al. 2011

Journal of Strength and Conditioning Research

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The aim of this study was to verify the validity of a new progressive distance and fixed time test (Carminatti's test [TCAR]) in estimating the main physiological indices of aerobic fitness in team-sport players. Thirty professional national level team-sport players (n = 12 futsal players and 18 soccer players) volunteered to participate in this study. The subjects performed the TCAR and a laboratory incremental treadmill test (ITT). The TCAR required subjects to complete repeated sets of 5 × 12-second shuttle-running bouts at progressive speed until volitional exhaustion. Each 12-second bout and series were separated by a 6- and 90-second recovery periods, respectively. The initial distance was set at 15 m and was progressively increased by 1 m each set. The ITT commenced at a velocity of 9.0 km·h(-1) and was increased by 1.2 km·h(-1) each 3 minutes until volitional exhaustion. Peak TCAR running velocity resulted not significantly (p > 0.05) different from speed at VO2max (vVO2max) during ITT. Peak TCAR running velocity was significantly correlated (p < 0.01) with vVO2max (r = 0.55) and VO2max (r = 0.51). No significant differences were found (p > 0.05) among the mean values of velocity and heart rate at the anaerobic threshold, estimated in the TCAR test and measured in the ITT. In light of this study results, the TCAR can be considered as a viable field test to estimate aerobic power and capacity in team-sports players. The limited devices and space required by TCAR warrant consideration for those strength and conditioning professionals who deal with team sports.

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Section: Discussionmentioning

confidence: 97%

Validity of Carminatti's Test to Determine Physiological Indices of Aerobic Power and Capacity in Soccer and Futsal Players

Dittrich

Silva²,

Castagna³

et al. 2011

Journal of Strength and Conditioning Research

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“…Contudo, divergiram de Pires et al 29, em que a função exponencial foi a que melhor se ajustou à curva lactato--intensidade para 70% de seus avaliados.…”

Section: Discussionunclassified

“…As concentrações de lactato nos diferentes limiares ficaram entre 3,6-4,3mM (Tabela1), demonstrando a fidedignidade dos métodos, inclusive da PSE DMáx . Essas concentrações se assemelham a outros estudos que apresentaram concentrações entre 3,5-5mM 3,13,19,20,29 .…”

Section: Discussionunclassified

“…A identificação do LAn pela cinética da PSE precisa ser mais investigada, inclusive comparando à outras escalas de PSE, pois Fabre et al 25 determinaram a PSE DMáx a partir da escala CR-100, adaptada de Borg 22 , que empregamos neste estudo, devido ao maior número de publicações científicas utilizando-a em conjunto na determinação do LAn em exercícios de características cíclicas [23][24][25][26][27]29,30 e ER 13,24 .…”

Section: Discussionunclassified

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Limiar Anaeróbio a Partir Da Pse Em Exercício Resistido Por Modelos Matemáticos

Arsa

Cambri

Silva

et al. 2016

Rev Bras Med Esporte

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reSUmoIntrodução: O limiar anaeróbio é comumente identificado em exercícios cíclicos, contudo, também pode ser determinado no exercício resistido (ER) por diferentes métodos, e assim, estimar a carga de trabalho relacionada ao estresse metabólico. No entanto, sua identificação a partir de outros métodos como o modelo matemático da DMáx e principalmente por variáveis mais acessíveis, como a percepção subjetiva de esforço (PSE), ainda não foi analisada. Objetivo: Comparar o limiar de lactato (LL) identificado pelo método de inspeção visual (LL IV ) com o método da DMáx aplicado nas respostas do lactato (LL DMáx ) e da PSE (PSE 12/13 e PSE DMáx ) durante exercício resistido incremental. Métodos: Dez praticantes de ER (24,8 ± 3,0 anos) foram submetidos ao teste de uma repetição máxima (1-RM) e a um teste incremental no leg-press, obtendo-se a PSE e o lactato em cada estágio. Resultados: Foi possível identificar o limiar anaeróbio por todos os métodos, entre 30% a 40% de 1-RM. As cargas absolutas, concentrações de lactato sanguíneo e PSE não foram diferentes entre os métodos empregados e apresentaram boa concordância entre si. Conclusão: É possível identificar o limiar anaeróbio tanto por inspeção visual quanto pelo modelo matemático de DMáx para o lactato e PSE, ampliando as possibilidades de determinação do limiar anaeróbio no exercício resistido por métodos de baixo custo e não invasivos.descritores: limiar anaeróbio; esforço físico; treinamento de resistência. ABSTRACT introduction: the anaerobic threshold is commonly identified in cyclic exercises, however it can also be identified on resistance exercise (re) by different methods, and thus can estimate the workload related to metabolic stress. however, its identification by other methods such as mathematical model of dmax and primarily by more accessible variables such as perceived exertion (Pe) has not yet been analyzed. objective: to compare the lactate threshold (lt) identified by visual inspection method (lt

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“…Two measures of the lactate threshold (LT) were calculated using the D-max method graph to observe the performance outcomes. 19,20 In this study, LTs were classified by 2 mM zone as lactate threshold 1 (LT 1 ) low intensity and >4 mM lactate threshold 2 (LT 2 ) as high intensity. Seiler identified the first low-intensity training zone (LITz) as a stable BLa at ~2 mM.…”

Section: 18mentioning

confidence: 99%

Effects of 4 Weeks High-Intensity Training on Running and Cycling Performance in Well-Trained Triathletes

Mallol¹,

Mejuto²,

Norton³

et al. 2017

Sport Exerc Med Open J

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Introduction: The aim of this study was to investigate the effect of a 4 week high-intensity interval training (HIIT) program on running and cycling performance. HIIT is a training method which can be used to improve physical fitness in less time, and reduced training volume, than traditional endurance training. HIIT allows athletes to accumulate time at higher training intensities, which is difficult to achieve when training in a continuous method. Methods: Twelve well-trained triathletes completed 4 traditional training weeks as a control period. They were then randomly assigned to a bike or run HIIT program completing 2 HIIT sessions each week. A 20-minute cycling time trial and maximal aerobic power test on the treadmill were measured before and after the HIIT program. Results: Both bike and run HIIT group achieved an increase of 6.7 and 2.1% in velocity at 2 mM and a decrease of 6.4 and 8.4% in the HR variable at 2 mM, respectively. Velocity peak decreased 1.9% in the run HIIT group and 1.8% for HR at 4 mM. Velocity peak decreased ~2% in the bike group and maintained HR maximum while there was a small reduction in the run group. For cycle time trial, the bike HIIT group demonstrated a significant improvement in average velocity (8.8%), whereas, velocity was slightly lower in the run training group (-3.5%). Conclusion: A 4-week bike HIIT program improved running performance in moderate to welltrained triathletes. However, in our study, the cycle performance was not enhanced by a 4-week HIIT running program, this may be due to the accumulated fatigue for the run group subjects.

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Caracterização da curva do lactato sanguíneo e aplicabilidade do modelo Dmax durante protocolo progressivo em esteira rolante

Cited by 7 publications

References 30 publications

Validity of Carminatti's Test to Determine Physiological Indices of Aerobic Power and Capacity in Soccer and Futsal Players

Validity of Carminatti's Test to Determine Physiological Indices of Aerobic Power and Capacity in Soccer and Futsal Players

Limiar Anaeróbio a Partir Da Pse Em Exercício Resistido Por Modelos Matemáticos

Effects of 4 Weeks High-Intensity Training on Running and Cycling Performance in Well-Trained Triathletes

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