Doherty M, Balmer J, Davison R C R, Robinson L, Smith P M
Department of Sport, Exercise and Biomedical Sciences, University of Luton, Luton, UK.
Int J Sports Med. 2003 Jul;24(5):366-71. doi: 10.1055/s-2003-40700.
Most fitness assessments either use a constant load to exhaustion (exercise capacity test) or an "all-out" effort (performance test). The purpose of this study was to determine the reliability of a high-intensity assessment that combined a constant load element with a performance test. Ten moderately trained male cyclists completed a ramp test to voluntary exhaustion in order to measure maximum minute power output (mean +/- s, 349.3 w +/- 55.0 w). On two other occasions subjects cycled at a constant load at maximum minute power output for 2-min immediately followed by a 1-min performance test. All tests were conducted on the subjects' own bicycles using a Kingcycle trade mark test rig. Power output was measured each second using SRM trade mark Power Cranks. The data were analysed by measuring the reliability of each 30 s of the 3-min test together with the peak power and the peak cadence achieved in the performance element of the test. There was no systematic bias in the data from trial 1 to trial 2 for any of the 6, 30 s blocks of the test, the peak power (mean, 95 % CI, 413.8 w, 357.8 - 469.7 w and 403.8 w, 339.9 - 467.6 w, trial 1 and trial 2, respectively) or peak cadence (95.0 rev x min(-1), 89.5 - 100.5 rev x min(-1) and 95.1 rev x min(-1), 90.0 - 100.1 rev x min(-1), trial 1 and trial 2, respectively). Mean (+/- s) total distance over the 3-min was 2.23 +/- 0.23 km and 2.26 +/- 0.26 km for trial 1 and trial 2 respectively (p > 0.05). The coefficients of variation ranged from 0.9 - 5.4 % and the intraclass correlation coefficients ranged from 0.96 - 0.99. It is concluded that in moderately trained subjects, the 3-min combination test provides reliable data and could therefore be used for short-term, high-intensity cycling intervention studies.
大多数体能评估要么采用恒定负荷直至力竭（运动能力测试），要么采用“全力”测试（表现测试）。本研究的目的是确定一种将恒定负荷元素与表现测试相结合的高强度评估的可靠性。十名训练有素的男性自行车运动员完成了递增负荷测试直至自愿力竭，以测量最大分钟功率输出（平均值±标准差，349.3瓦±55.0瓦）。在另外两次测试中，受试者以最大分钟功率输出的恒定负荷骑行2分钟，随后进行1分钟的表现测试。所有测试均在受试者自己的自行车上使用Kingcycle商标测试装置进行。使用SRM商标功率曲柄每秒测量一次功率输出。通过测量3分钟测试中每30秒的可靠性以及测试表现部分所达到的最大功率和最高踏频来分析数据。在测试的6个30秒时间段中的任何一个、最大功率（平均值，95%置信区间，分别为试验1时413.8瓦，357.8 - 469.7瓦，试验2时403.8瓦，339.9 - 467.6瓦）或最高踏频（分别为试验1时95.0转/分钟，89.5 - 100.5转/分钟，试验2时95.1转/分钟，90.0 - 100.1转/分钟）方面，从试验1到试验2的数据均无系统偏差。试验1和试验2在3分钟内的平均（±标准差）总距离分别为2.23±0.23千米和2.26±0.26千米（p>0.05）。变异系数范围为0.9 - 5.4%，组内相关系数范围为0.96 - 0.99。得出的结论是，对于训练有素的受试者，3分钟组合测试可提供可靠数据，因此可用于短期、高强度自行车骑行干预研究。
