Lab 1

1. Lab 1 Assessing Anaerobic Capabilities Using the Wingate Test

2. Wingate Anaerobic Test (WanT) • Is the most popular anaerobic test • Gauges the energy produced during phosphagen breakdown (ATP-PC system) and anaerobic glycolysis

3. Three measures derived from the WanT 1. Peak power • Reflects the phosphagen component • Is the greatest work performed during any five-second period 2. Mean power • Reflects the glycolytic and phosphagen components • Is the total work performed during the 30-second test 3. Fatigue Index • Reflects the anaerobic fatigue capabilities of the active muscle • Higher fatigue index indicates a greater proportion of fast-twitch fibers

4. 150 lb. healthy female in her mid-twenties Seconds Revolutions 0-5 8 5-10 9 10-15 8 15-20 7 20-25 6 25-30 5 Example for Peak Power, Mean Power, and Fatigue Index Computations

5. Peak Power Formula 0.075 kg resistance x kg of body weight x 6 (the distance in m traveled by the cycle ergometer flywheel in one revolution) x greatest number of revolutions of the flywheel in a 5-second period = peak power kgm · 5 sec-1 To convert to watts: peak power kgm · 5 sec-1 x 12 / 6.12

6. Peak Power Example • 150 lb. healthy female in her mid-twenties 0.075 x 68 = 5 x 6 = 30 x 9 = 270 kgm · 5 sec-1 x 12 / 6.12 = 529.4 Watts Percentile rank = 80 (Table 1.1)

7. Mean Power Formula 0.075 kg resistance x kg of body weight x 6 x number of revolutions of the flywheel in the 30-second period = mean power kgm · 30 sec-1 To convert to Watts: Mean power kgm · 30 sec-1 x 2 / 6.12

8. Mean Power Example • 150 lb. healthy female in her mid-twenties 0.075 x 68 = 5 x 6 = 30 x 43 = 1290 kgm · 30 sec-1 x 2 / 6.12 = 421.5 Watts Percentile rank = 80 (Table 1.2)

9. Fatigue Index Formula greatest work in 5-sec. period − lowest work performed in 5-sec. period greatest work in 5-sec. period x 100

10. Fatigue Index Example 9 − 5 = 4/9 = .444 x 100 = 44.4 Percentile rank = 80 (Table 1.1)