The Transition from Aerobic to Anaerobic Metabolism

Skinner, James S.; Mclellan, Thomas H.

doi:10.1080/02701367.1980.10609285

Cited by 468 publications

(343 citation statements)

References 43 publications

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“…Simultaneamente ao TE máximo, foram continuamente coletados o fluxo de ar expirado e amostras dos gases inspirados e expirados pelo indivíduo a cada ciclo respiratório, através de um analisador de gases computadorizado ( 25 .…”

Section: Métodosunclassified

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Comportamento da freqüência cardíaca e da sua variabilidade durante as diferentes fases do exercício físico progressivo máximo

Alonso

Forjaz²,

Rezende³

et al. 1998

Arq. Bras. Cardiol.

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Purpose -Heart rate variability (HRV) has been studied at rest as a non-invasive tool for the assessment of cardiac autonomic control and, its attenuation is related to cardiovascular risk. However, during exercise, when important neural changes take place, HRV behaviour is not well established. The aim of this investigation was to study the heart rate (HR) and HRV responses during the different metabolic phases of maximal graded exercise in young men.Methods -Seventeen men (age 28±6 years) were submitted to a graded cardiopulmonary exercise test in a cycloergometer (30W/3min). To study HR and HRV (standard-deviation) Métodos -Dezessete homens (28±6 anos) realizaram teste ergoespirométrico máximo em cicloergômetro (30W/ 3min), determinando-se a FC e a VFC (desvio-padrão) através da onda eletrocardiográfica, amplificada e gravada batimento a batimento em computador, numa freqüên-cia da 125Hz (AT/Codas).Resultados [1][2][3][4] . Estudos recentes 5-8 têm demonstrado que a diminuição da VFC está relacionada a um maior índice de morbidade e mortalidade cardiovascular. Por essas razões, muitos autores têm se ocupado em utilizar manobras respiratórias 9 , mudanças de posição 10,11 e bloqueios farmacológicos do sistemas nervosos simpático e parassimpático 10 , na tentativa de investigar a VFC.

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Section: Métodosunclassified

“…O PCR foi determinado no minuto durante o exercício em que a curva de VE/VCO 2 atingiu o seu valor mínimo, antes de começar a subir, e a de PetCO 2 atingiu o seu maior valor antes de começar a diminuir 25 .…”

Section: Métodosunclassified

Comportamento da freqüência cardíaca e da sua variabilidade durante as diferentes fases do exercício físico progressivo máximo

Alonso

Forjaz²,

Rezende³

et al. 1998

Arq. Bras. Cardiol.

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“…Aerobic-anaerobic threshold was also used for evaluation of capacity of aerobic energy metabolism with submaximal workload. Aerobic-anaerobic thres hold means the transitional point from aerobic to anaerobic energy metabolism in muscle (Skinner and Mclellan, 1980). In our study, the point of 4 mmols/l of the serum lactic acid concentration was used to determine the aerobic-anaerobic threshold.…”

Section: Discussionmentioning

confidence: 97%

Transition of physical fitness in wheelchair marathon competitors over several years

1989

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SummaryTwenty eight stress tests for 14 wheelchair marathon competitors were performed to determine their physical fitness just before the Oita International wheelchair mara thon since 1984. All the subjects were wheelchair-bound Japanese males and workers at Sun Industry. Oxygen consumption at the maximal workload was significantly larger than that of non-athletic paraplegics and the mean values were 35·0 ± 4·8 ml/kg in competitors and 22·6 ± 5·0 ml/min/kg in non-athletic paraplegics. Eight competitors had more than 2 stress tests and 6 of them had 3 tests from 1984 to 1987. The oxygen consumption at the maximal workload of their third test was very high (46·5 ± 6·8 ml/min/kg) equal to highly trained paraplegics, and was larger than the result of the first test significantly. Their physical fitness was reduced signifi cantly during the off season, however their physical fitness was maintained at a satisfactory higher level than that of non-athletes. This study demonstrated that individual training for wheelchair marathoners had improved the competitors' physi cal fitness over several years.

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“…The third theory explaining the existence of lactate threshold is related to the recruitment of fast-twitch muscle fibers during intense exercise [19]. It is hypothesized that the enzyme promoting the LDH reaction in "fast" fibers has more propensity in converting pyruvic acid to lactic acid than the enzyme in "slow" fibers [20]. Thus, as "fast" fibers are recruited during intense exercise, more lactic acid is produced.…”

Section: Discussionmentioning

confidence: 99%

Kinetics of Post-Exercise Excess CO2 Production and Substrate Oxidation in Two Dysglycemic and Euglycemic Older Women A Case Study.

Gribok¹,

Rumpler²,

DiPietro³

2017

Diabetes Case Rep

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The Transition from Aerobic to Anaerobic Metabolism

Cited by 468 publications

References 43 publications

Comportamento da freqüência cardíaca e da sua variabilidade durante as diferentes fases do exercício físico progressivo máximo

Comportamento da freqüência cardíaca e da sua variabilidade durante as diferentes fases do exercício físico progressivo máximo

Transition of physical fitness in wheelchair marathon competitors over several years

Kinetics of Post-Exercise Excess CO2 Production and Substrate Oxidation in Two Dysglycemic and Euglycemic Older Women A Case Study.

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