The energetics of anaerobic muscle metabolism: a reappraisal of older and recent concepts
The energetics of anaerobic muscle metabolism: a reappraisal of older and recent concepts
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DOI：
10.1016/s0034-5687(99)00083-3
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发表时间：
1999-12-01
期刊：
影响因子：
--
通讯作者：
Ferretti, G
中科院分区：
文献类型：
--
作者：
di Prampero, PE;Ferretti, G
本文讨论了在一个充满活力的角度下，最近和更老的证据支持的经典概念，即“氧债务”，最初定义的Margaria等。（1933）[美国。J.Physiol.106，689-714]，由两个主要部分组成：半乳糖氧债，其半衰期为30秒量级，和乳酸氧债，其半衰期长得多，类似于运动后从血液中去除乳酸的半衰期（约15分钟）。特别是，两个随后的概念进行处理，即（i）血液中的血液乳酸盐积累的能量当量，由此产生的乳酸功率和乳酸能力的概念，和（ii）能量来源允许收缩的缺氧在开始的方波运动。根据最近在人类中的证据，重新讨论了乳酸氧缺乏的概念。从能量的角度讨论了超负荷运动期间和运动瞬变期间乳酸积累之间的相似性。(C)1999 Elsevier Science B. V.保留所有权利。
This paper discusses under an energetic perspective the recent and older evidence supporting the classical notion that the 'oxygen debt', as originally defined by Margaria et al. (1933) [Am. J. Physiol. 106, 689-714], consists of two major components: the alactic oxygen debt, with a half-time of the order of 30 sec, and the lactic oxygen debt, with a much longer half-time, similar to that of lactic acid removal from blood after exercise (approximate to 15 min). In particular, two ensuing concepts are treated, namely (i) the energetic equivalent of blood lactate accumulation in blood, whence the notions of lactic power and lactic capacity, and (ii) the energy sources allowing contraction of the oxygen deficit at the onset of square-wave exercise. The notion of alactic oxygen deficit is rediscussed on the basis of recent evidence in humans. The analogies between lactate accumulation during supramaximal exercise and during exercise transients are discussed under an energetic perspective. (C) 1999 Elsevier Science B.V. All rights reserved.