Capriotti P V, Sherman W M, Lamb D R
Sport and Exercise Sciences Section, School of Physical Activity and Educational Services, The Ohio State University, Columbus, USA.
Med Sci Sports Exerc. 1999 Jun;31(6):913-5. doi: 10.1097/00005768-199906000-00023.
We determined the number of trials on consecutive days required to establish high reliability of an intermittent high-intensity cycling test in subjects unfamiliar with multiple-sprint exercise. We also examined the extent to which this reliability could be maintained for 6 d.
Five untrained men performed a multiple-sprint test (10 x 7 s, with each sprint separated by 30 s) on each of four consecutive days (days 1-4), then rested for 6 d, and finally performed two additional tests on consecutive days (days 11 and 12). For statistical comparisons (analyses of variance), mean power outputs during sprints 8, 9, and 10 (MP8-10) on each test day were calculated for each of the 4th, 5th, and 6th seconds of the sprints, i.e., MP8-10(4th), MP8-10(5th), and MP8-10(6th). Peak power during each sprint was also examined.
For days 3 and 4, values for MP8-10(4th), MP8-10(5th), and MP8-10(6th) were greater than on day 1 (P < 0.05). MP8-10(6th) on day 2 was also greater than on day 1 (P < 0.05). There were no differences in MP8-10 among days 2, 3, 4, 11, and 12. Also, peak power on day 1 was lower (P < 0.05) than peak power for all other days, which were not different from one another. The coefficients of variation (CV) for MP8-10 on day 3 versus day 4 were 3.3%, 2.5%, and 2.9% for MP8-10(4th), MP8-10(5th), and MP8-10(6th), respectively. The CV for MP8-10(4th), MP8-10(5th), and MP8-10(6th) on days 4, 11, and 12 ranged from 2.1 to 3.9%, with an overall mean of 3.1%. The greatest CV for MP8-10 was 5.2% for MP8-10(6th) on days 2 versus 3 and 2 versus 4. The mean CV for peak power for all pairwise combinations of days 4, 11, and 12 was 2.8%.
In conclusion, satisfactory reliability of intermittent cycling tests is achieved after two familiarization sessions identical to the tests, and that reliability can be maintained for 6 d.
我们确定了在不熟悉多次冲刺运动的受试者中建立间歇性高强度自行车测试高可靠性所需的连续测试天数。我们还研究了这种可靠性在6天内能够维持的程度。
五名未经训练的男性在连续四天（第1 - 4天）中的每一天都进行一次多次冲刺测试（10次，每次7秒，每次冲刺间隔30秒），然后休息6天，最后在连续两天（第11天和第12天）再进行两次测试。为了进行统计比较（方差分析），计算了每次测试日冲刺8、9和10期间的平均功率输出（MP8 - 10），分别针对冲刺的第4、5和6秒，即MP8 - 10(4th)、MP8 - 10(5th)和MP8 - 10(6th)。还检查了每次冲刺期间的峰值功率。
在第3天和第4天，MP8 - 10(4th)、MP8 - 10(5th)和MP8 - 10(6th)的值高于第1天（P < 0.05）。第2天的MP8 - 10(6th)也高于第1天（P < 0.05）。在第2、3、4、11和12天之间，MP8 - 10没有差异。此外，第1天的峰值功率低于所有其他天（P < 0.05），而其他天之间没有差异。第3天与第4天相比，MP8 - 10(4th)、MP8 - 10(5th)和MP8 - 10(6th)的变异系数（CV）分别为3.3%、2.5%和2.9%。第4、11和12天MP8 - 10(4th)、MP8 - 10(5th)和MP8 - 10(6th)的CV范围为2.1%至3.9%，总体平均值为3.1%。MP8 - 10的最大CV是第2天与第3天以及第2天与第4天相比时MP8 - 10(6th)的5.2%。第4、11和12天所有两两组合的峰值功率平均CV为2.8%。
总之，在进行两次与测试相同的适应性训练后，间歇性自行车测试可获得令人满意的可靠性，并且该可靠性可维持6天。
