Post-analysis methods for lactate threshold depend on training intensity and aerobic capacity in runners. An experimental laboratory study

Fernandes, Tiago Lazzaretti; Nunes, Romulo dos Santos Sobreira; Abad, César Cavinato Cal; Silva, Andrea Clemente Baptista; Souza, Larissa Silva; Silva, Paulo Roberto Santos; Neto, Cyro Albuquerque; Irigoyen, Maria Cláudia; Hernandez, Arnaldo José

doi:10.1590/1516-3180.2014.8921512

Cited by 6 publications

(8 citation statements)

References 32 publications

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“…The maximum oxygen consumption is one of the most common, and a detailed study of the lactate threshold is either utilized for this purpose and depends on training intensity and aerobic capacity of the runners. 2 In conclusion, this research field is in state of the art with new apparatus such as thermography to measure skin temperature, the amount of sweat in the skin (the phenomena controlled by the body to increase the energy transfer to the environment). The internal temperature has been proven to be difficult to properly evaluate only with traditional methods.…”

Section: Results Of Previous Analyses and Future Workmentioning

confidence: 99%

“…Lavoisier (1743-1794) showed that humans generate heat by a combustion process resulting in the production of carbon dioxide and consumption of oxygen 1 . VO 2 max, running economy, fractional utilization of VO 2 max and lactate threshold are used for health status, evaluation of training intensity and improving the performance of endurance in athletes 2,3 . Study of body temperature, energy balance and thermodynamics may also be useful for predictions of aerobic threshold and exercise prescriptions for health issues 2 .…”

Section: Introductionmentioning

confidence: 99%

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Clinical Application of Thermography for Energy Balance in Athletes – State of the Art and New Paradigms

Fernandes

Hernandez

Neto

et al. 2018

Rev Bras Med Esporte

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This article aims to describe the evolution of techniques that have enabled the proper application of the Laws of Thermodynamics for physical activity and athletes. The objective is to propose performance indicators to help add information to the current indices used in medicine and sports, such as the lactate threshold and maximum oxygen consumption. A number of analyses of the results obtained by the group were carried out for this purpose. Moreover, a discussion regarding which techniques would provide a better response to the measurements was analyzed. Some examples are the substitution of the treadmill running test with the stationary bicycle (known performed work), and a literature search in order to measure internal temperature more accurately. Level of Evidence V; Expert opinion.

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Section: Results Of Previous Analyses and Future Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Clinical Application of Thermography for Energy Balance in Athletes – State of the Art and New Paradigms

Fernandes

Hernandez

Neto

et al. 2018

Rev Bras Med Esporte

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“…a stationary bicycle. Another point is the combination of the analysis proposed in [4,18]. Their results demonstrate a possible correlation between the medical indexes with the ones from thermodynamic.…”

Section: Methodsmentioning

confidence: 84%

“…These are lactate threshold, maximum oxygen consumption ( v O 2 ,max ) and ventilatory thresholds (VT1 and VT2). These are used as an evaluation instrument of training intensity and to develop the performance of endurance in athletes, with specific training [4].…”

Section: Introductionmentioning

confidence: 99%

Exergy efficiency on incremental stationary bicycle test: A new indicator of exercise performance?

Mady¹,

Igarashi²,

Neto³

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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The first and second laws of the thermodynamics were applied to the human body to evaluate the performance of subjects under different training levels. Ten cyclists were evaluated in the stationary bicycle with the indirect calorimetry analysis to obtain the metabolism on an energy and exergy basis. A distinguishing feature of this article is the evaluation of the exergy efficiency of the body with the knowledge of the real performed power and the internal temperature (measured tympanic temperature and calculated esophagus temperature). Regarding the skin temperature, an infrared camera was used to measure different parts of the body. Therefore, the phenomenological behavior of the body was assessed and used as a basis to apply the exergy analysis. Results indicate that the destroyed exergy can be an indicator of performance when compared with maximum oxygen consumption. Nevertheless, more experiments must be carried out to proper state if there is a correlation. Eventually, the exergy efficiency was calculated for all subjects, and its value was around 23 to 28%.

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“…26 [17], 혈중으로 배출되어 혈중 농도가 급격하게 상승하며 [18], 운동 시 혈중 젖산 수치의 증가는 운동강도와 비례하는 것으로 알려져 있다 [19]. 또한 유산소성 운동 능 력 지표로 젖산역치가 이용되어 왔으며 [20,21]…”

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The Comparisons of Blood Lactate Concentration and Removal Rate after Aerobic and Anaerobic Maximal Exercise

Kim¹,

Kim²,

Kim³

et al. 2017

Exerc Sci

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This study examined blood lactate concentration and removal rate after aerobic and anaerobic maximal exercise test in sedentary middle-age women. METHODS: Ten sedentary middle-age women (aged 52.7±3.3 years) were performed after aerobic (Aero group) and anaerobic maximal exercise (Anaero group) test, VO2max test and Wingate test, by cross-over repeated design with biweekly. The blood was collected from cardinal veins at before and immediately after test for measurement of lactate and lactate dehydrogenase (LDH). And it was also collected from fingertip at before, immediately after and then recovery 5, 10, 15, 30 minutes after each maximal test. Lactate removal rate (%) were calculated by bellow formulas: ={1-[(Lactate at 30 minutes. after test-Resting lactate)/Increased lactate]}×100. RESULTS: The blood lactate concentration from fingertip after both maximal test significantly increased immediately after test (p<.001 respectively), and maintained until recovery of 30 minutes. after test (p<.01, p<.001 respectively) in spite of there were no significant differences between both Aero and Anaero group. There were also no significant differences between both test groups in blood maximum lactate (p=.090) and increased lactate concentration (p=.058). No significant differences were also observed between the two groups in lactate removal rate (p >.05). There are positive correlationship among muscle mass and blood maximum lactate and increased lactate concentration (p<.01). CONCLUSIONS: These results indicate that exercise was performed by anaerobic at end of test in VO2max test. Also suggested that the greater muscle mass may induce the more lactate accumulation, thereby increasing lactate tolerance.

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Post-analysis methods for lactate threshold depend on training intensity and aerobic capacity in runners. An experimental laboratory study

Cited by 6 publications

References 32 publications

Clinical Application of Thermography for Energy Balance in Athletes – State of the Art and New Paradigms

Clinical Application of Thermography for Energy Balance in Athletes – State of the Art and New Paradigms

Exergy efficiency on incremental stationary bicycle test: A new indicator of exercise performance?

The Comparisons of Blood Lactate Concentration and Removal Rate after Aerobic and Anaerobic Maximal Exercise

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