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首页> 美国卫生研究院文献>PLoS Clinical Trials >The 3-min all-out test is valid for determining critical power but not anaerobic work capacity in tethered running
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The 3-min all-out test is valid for determining critical power but not anaerobic work capacity in tethered running

机译：3分钟的全力测试对于确定关键功率有效，但对于系留运行中的无氧工作能力无效

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The purpose of the study was to investigate if the 3-min all-out test (3MT) is valid for obtaining critical power intensity (CP) and the amount of work that can be performed above CP (W’) on non-motorized treadmills in tethered running. Eight physically active individuals (24 ± 3 years; 78.3 ± 8.7 kg; 179 ± 5 cm; 9.0 ± 2.5% body fat) performed four different efforts at constant intensity to exhaustion in order to determine CP and W’. The mechanical power values obtained were subsequently plotted with their corresponding time to exhaustion (limit time) for application of three mathematical models: power hyperbolic versus time limit (Hyp), linear power versus 1/time (P vs 1/t) and linear work versus time limit (Ԏ vs t). The 3MT test was carried out on the last day to determine end power (EP) and anaerobic capacity (WEP) using this methodology. EP value of 181.7 ± 52 was similar (p = 0.486) to 178.2 ± 61 (CP Hyp), 191.4 ± 55 (Ԏ vs t) and 188.3 ± 55 (P vs 1/t). WEP value of 17.9 ± 4.8 was not similar (p = 0.000) to 50.2 ± 15.3 (CP Hyp), 44.8 ± 8.7 (Ԏ vs t) and 45.5 ± 8.4 (P vs 1/t). Positive results (r = 0.78–0.98 and ICC = 0.88–0.99) of Pearson correlation and intraclass correlation (ICC–absolute agreement) were found for aerobic applications of conventional CP and 3MT. For anaerobic data, only the three models of conventional CP were correlated (r = 0.76–0.93); however, W’ from the three models was not correlated with WEP (r = 0.37–0.52). The results of this study suggest that 3MT in tethered running on non-motorized treadmills is a valid test for estimating CP aerobic parameters in a single day of application but not anaerobic parameters of W’.
机译：这项研究的目的是调查3分钟的全面测试（3MT）是否对于获得临界功率强度（CP）以及在非电动跑步机上可以在CP之上完成的工作量（W'）有效。在束缚的运行中。八个身体活跃的个体（24±3岁； 78.3±8.7千克； 179±5厘米； 9.0±2.5％的身体脂肪）以恒定的强度进行了四次不同的努力，以测定精疲力竭和CP。随后将获得的机械功率值与相应的耗尽时间（极限时间）作图，以应用三个数学模型：功率双曲线与时间极限（Hyp），线性功率与1 /时间（P对1 / t）和线性功与时间限制（Ԏvs t）。在最后一天进行了3MT测试，以确定使用此方法的最终功率（EP）和厌氧能力（WEP）。 EP值181.7±52（p = 0.486）类似于178.2±61（CP Hyp），191.4±55（Ԏvs t）和188.3±55（P vs 1 / t）。 17.9±4.8的WEP值与50.2±15.3（CP Hyp），44.8±8.7（4 vs t）和45.5±8.4（P vs 1 / t）相似（p = 0.000）。对于常规CP和3MT的有氧应用，皮尔逊相关性和类内相关性（ICC绝对一致）的阳性结果（r = 0.78–0.98和ICC = 0.88–0.99）被发现。对于厌氧数据，仅常规CP的三个模型相关（r = 0.76-0.93）；但是，这三个模型的W’与WEP无关（r = 0.37–0.52）。这项研究的结果表明，在非电动跑步机上的拴系运行中3MT是评估单天施用CP有氧参数而不是W'的无氧参数的有效测试。

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