The objective today is to obtain experimental data that is close to the previous trial's.
Test subject: Rider 1001. Weight: 165 lbs. Height: 5'11 ft. Knob: 2.74 lb. Procedure: I followed the protocol that we developed and used in familiarization test. Discrepancy: The cadence sensor was off and inaccurate, so we used power 109 +- 10 to determine the fatigue time. Data Results: Time to Fatigue 05:07.00 Percent difference from Control Trial 1: 6.1% Conclusion: The testing did not go as well as we had expected, mainly because the cadence was off so the discrepancy is greater than 5%.
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The Objective today is to attain the first trial data for the fatigue time test of TruGrit tea.
Subject: Rider 1001. Weight: 168 lbs. Height: 5'11 ft. Knob 2.73 lb. Data Results: Average cadence 86.3 RPM. Time to Fatigue 05:27.02 Percent difference from Familiarization test: (Initial-X)/Initial x 100% = 0.03% difference. Conclusion: The trial went incredibly well today from all the set up to testing, and the tiny percent difference indicated good data from today's testing. The objective of today was to get the subject to be familiar with the protocol.
Protocol: 1. Let subject have unknown tea at 10:50. 2. Subject comes to lab and changes clothes. 3. Researchers check tire pressure (100), rider data, wire, position, etc. 4. Measure the subject's weight without shoes on. 5. Do calibration test for 10 min. 6. Warm up test for 10 min at 195 wattage. 7. Use the restroom if needed. 8. Start Fatigue test at 309 wattage. 9. Determine the fatigue time, end and save test report. Gear: big chain ring and 5 cog in the rear Average cadence 87 RPM. *The first minute of Fatigue test does not require 309 wattage. Conclusion: The familiarization test was a success that we obtained accurate data with great protocol. Familiarisation test result: Fatigue time 5:27:01 min Objective: Collecting data of VO2 max and power test for the subject.
Subject: 167 lb, 6 ft, 52 years old. Methodology and Material: We used metabolic cart, mask and tubes to detect oxygen consumption for determining VO2 max of the subject. Compute Trainer and the software Racermate were also used with the bike to measure the power output of the subject. First, we ran calibration test for the bike with Racermate, and calibration test for the metabolic cart. Meanwhile, gas test was operated on the metabolic cart. We chose the Male20min training program for the subject, which includes about 8 minutes of warm up and 12 minutes of ascending speed and power input demand. Then, the subject wore the mask and had the tube on the mask attached to the metabolic cart sensor, starting to cycle with the program chosen. The R value of the subject has to be greater than 1.10, representing the real effort that the subject puts in. Besides, we decided on two ways that could identify the VO2 max for the subject. One is if the subject can no longer maintain 90 RPM on the bike; the other one is that if the VO2 measurement is not increasing by 2 mL/min/kg at one-minute interval, since VO2 max is determined over one-minute interval. Data: We chose to have the data be sorted in 15 seconds for one interval. The subject's VO2 max is at 15 minutes, with 55.15 mL/min/kg and 325 watts power input. Future trials: For the future trials, the subject will cycle at 95% of his VO2 max to ascertain the fatigue time of the subject. The project will be a blind test that the subject is given unknown tea to drink one hour before testing, excluding psychological effects. Conclusion: The internship went really well today and we got some wonderful data, so next week we will start our familiarisation trial. |
AuthorClass of 2019 at Emma Willard School. Archives
May 2018
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