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F-26 Free Communication/Poster - Cycling Physiology: JUNE 1, 2007 1: 00 PM - 6: 00PM ROOM: Hall E

Reliable WAnT time about competitive abilities performed by elite racing cyclists in Korea

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Board #83 June 1 2:00 PM - 3:30 PM

Kim, Jong Kyu; Cho, Hyun C.; Kang, Seoung K.; Jung, Seung H.

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Medicine & Science in Sports & Exercise: May 2007 - Volume 39 - Issue 5 - p S446
doi: 10.1249/01.mss.0000274763.18220.b6
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The wingate anaerobic test (WAnT) has been well used to measure anaerobic performance ability in athletes. Our previous studies showed that the WAnT over 30s, such as 45s, 60s, and 75s, resulted in higher percentile error in mean power (25%) and rate of fatigue (40%). The most reliable results indicated that the WAnT should be done within 30s. Additionally, to our knowledge, the reliability of test times of WAnT has not been tested in Asians.

PURPOSE: To find out an optimal effort testing time of WAnT in Korean elite racing cyclists using electro-magnetically braked cycle ergometer (Lode B.V., Netherlands).

METHODS: Twenty seven professional cyclists (Age: 32.80 ± 6.2 years, Height: 174.7 ± 5.2 cm and weight: 77.6 ± 7.5 kg) from the top 100th in the first half of the year 2006 volunteered for this study. 10s, 20s and 30s of the WAnT were performed twice on separate days with a rest period of 6 days between the two test days. On a test day, all the participants had 3min warm-up at 60rpm with 100W resistance followed by a 3min rest. The main test started by a signal alarm sound given when the participant's heart rate reached between 120 ∼ 125 bpm after the 5min pre-test period at 60rmp with 100W. Mean power and peak power were recorded by the Lode software (Wingate V. 1.0.7). Mean powers were analyzed for reliability over 2 visits of 10s, 20s and 30s using limits of agreement (LOA), and LOAs of 10s, 20s and 30s were compared.

RESULTS: The mean ± SD for 1st and 2nd visits of 10s, 20s and 30s were 1038.4 ± 150.6W and 1050.6 ± 150W, 907.9 ± 127.9W and 901.3 ± 135.4W, and 791.5 ± 102.8W and 792.2 ± 111.2W respectively. Percentiles of random errors declined linearly with increased test times; 10s (13.4%), 20s (10.4%) and 30s (7.7%).

CONCLUSION: Using an electro-magnetically braked cycle ergometer to measure anaerobic power in professional Korean cyclists showed that the 30s WAnT is more reliable than 10s or 20s. Thus, with our previous studies, 30seconds should be used as the optimal effort testing time of WAnT in Korean elite cyclists.

© 2007 American College of Sports Medicine