Bertuzzi Rômulo, Melegati Jorge, Bueno Salomão, Ghiarone Thaysa, Pasqua Leonardo A, Gáspari Arthur Fernandes, Lima-Silva Adriano E, Goldman Alfredo
Endurance Performance Research Group (GEDAE-USP), School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Systems and Software Group, Department of Computer Science, University of São Paulo, São Paulo, Brazil.
PLoS One. 2016 Jan 4;11(1):e0145733. doi: 10.1371/journal.pone.0145733. eCollection 2016.
The aim of the current study is to describe the functionality of free software developed for energy system contributions and energy expenditure calculation during exercise, namely GEDAE-LaB.
Eleven participants performed the following tests: 1) a maximal cycling incremental test to measure the ventilatory threshold and maximal oxygen uptake (V̇O2max); 2) a cycling workload constant test at moderate domain (90% ventilatory threshold); 3) a cycling workload constant test at severe domain (110% V̇O2max). Oxygen uptake and plasma lactate were measured during the tests. The contributions of the aerobic (AMET), anaerobic lactic (LAMET), and anaerobic alactic (ALMET) systems were calculated based on the oxygen uptake during exercise, the oxygen energy equivalents provided by lactate accumulation, and the fast component of excess post-exercise oxygen consumption, respectively. In order to assess the intra-investigator variation, four different investigators performed the analyses independently using GEDAE-LaB. A direct comparison with commercial software was also provided.
All subjects completed 10 min of exercise at moderate domain, while the time to exhaustion at severe domain was 144 ± 65 s. The AMET, LAMET, and ALMET contributions during moderate domain were about 93, 2, and 5%, respectively. The AMET, LAMET, and ALMET contributions during severe domain were about 66, 21, and 13%, respectively. No statistical differences were found between the energy system contributions and energy expenditure obtained by GEDAE-LaB and commercial software for both moderate and severe domains (P > 0.05). The ICC revealed that these estimates were highly reliable among the four investigators for both moderate and severe domains (all ICC ≥ 0.94).
These findings suggest that GEDAE-LaB is a free software easily comprehended by users minimally familiarized with adopted procedures for calculations of energetic profile using oxygen uptake and lactate accumulation during exercise. By providing availability of the software and its source code we hope to facilitate future related research.
本研究旨在描述为运动期间能量系统贡献和能量消耗计算而开发的免费软件GEDAE-LaB的功能。
11名参与者进行了以下测试：1）最大自行车递增测试，以测量通气阈值和最大摄氧量（V̇O2max）；2）在中等强度区域（通气阈值的90%）进行的自行车工作量恒定测试；3）在高强度区域（V̇O2max的110%）进行的自行车工作量恒定测试。在测试过程中测量摄氧量和血浆乳酸。分别根据运动期间的摄氧量、乳酸积累提供的氧能量当量以及运动后过量氧消耗的快速成分，计算有氧（AMET）、无氧乳酸（LAMET）和无氧非乳酸（ALMET）系统的贡献。为了评估研究者内部的差异，四名不同的研究者使用GEDAE-LaB独立进行分析。还提供了与商业软件的直接比较。
所有受试者在中等强度区域完成了10分钟的运动，而在高强度区域的疲劳时间为144±65秒。中等强度区域的AMET、LAMET和ALMET贡献分别约为93%、2%和5%。高强度区域的AMET、LAMET和ALMET贡献分别约为66%、21%和13%。对于中等强度和高强度区域，GEDAE-LaB和商业软件获得的能量系统贡献和能量消耗之间未发现统计学差异（P>0.05）。组内相关系数（ICC）显示，对于中等强度和高强度区域，这四名研究者的这些估计值具有高度可靠性（所有ICC≥0.94）。
这些发现表明，GEDAE-LaB是一款免费软件，对于那些对使用运动期间的摄氧量和乳酸积累来计算能量概况的既定程序稍有了解的用户来说很容易理解。通过提供该软件及其源代码，我们希望促进未来的相关研究。
