Besides the experimental testing, we discussed how the methodologies section of my presentation should look like, and we came up with the subject's basic information as well as the participant instructions, according to the health questionnaire.
Procedure: referred to the protocol post Results: Press on force 2.73 lb Time to fatigue 05:19.1 Weight 164 lb We also checked the tire force, humidity, and temperature.
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Here comes more testings!
My mentor and I started reviewing our projects throughout the semester, and we drafted a rough outline for the presentation. As usual, we followed the protocol and acquired the data results as below Press on force 2.75 lbs Weight 165 lbs Height 5'11 ft Time to fatigue 05:22.4 Objective today: Control 3 Trials and go over Mean values as well as the standard deviation.
Process: We followed the designated protocol and obtained the following data results. Weight 165 lbs Heigh 5'11 ft Press on force 2.76 lb Time to exhaustion 05:59.9 Mean value for control tea testings: 331.307 seconds Standard Deviation: 21.808 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%. 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. Because my mentor missed the 11:00 shuttle driving from Sage College at Albany to Sage College at Troy, he came at 11:45 and I have to leaver at 12:00 due to a debate workshop at Shen.
We had a conversation about Mr. Borowsky's invitation and suggestion of having students from the Taylor School to observe our experiment process. Although we both agree that more exposure to science will encourage more children's potentials and interests, we think that to prioritize our subjects' opinion on being observed and our pace of the research are more beneficial. In addition, my mentor mentioned that the possible subjects he emailed had said that Tuesday afternoons don't work that well. Therefore, I offered that if Tuesday afternoons don't always work, I can go to the lab over weekends and perform the test with higher efficiency. I emailed my mentor last week about the debate team workshop at Shen high school, and he generously let me go to the workshop and catch up later after Spring break. We will have more email contacts over Spring break about the subject testing. Since Mr. Borowsky would collaborate with us, we did further research on the what methodologies other studies used. We have most of the equipment for the research, including several bikes, a cycle ergometer, a metabolic cart, and other minor tools. The goal for today is to look up how other research determine the fatigue time for subjects.
Most of the published studies indicate that the subject will do an incremental cycling test, measured by a cycle ergometer. The incremental exercise will eventually (some have 4 stages of increase from the warm-up pace to VO2 power pace, some have 6) lead up to the subject's VO2 pace rate, and the fatigue time is determined when the subject can no longer continue at the VO2 power pace. Our agenda for the rest of the semester is drafted as below; 1. Measure the subject's VO2 max, power, warm-up pace. 2. Do two familiar trials with cycling test. 3. Do two Control Tea test. 4. Do two TruGrit Tea test. 5. Analyze the results and conclude. Thus, our protocol will be 1. Run few control tests with metabolic cart. 2. Measure the subject's VO2 max, power, threshold pace, warm-up pace. 3. Have the subject drink either the control tea or the TruGrit tea depending on if it is a control tea trial or TruGrit tea trial. 4. Do familiar trials with cycling incremental test of 4 paces. 5. Determine the fatigue time. Some details that we have to decide on are: 1. Whether or not we should control the subject's diet. We have discussed that we may have the subject eat and drink the same food within the 2 hours before coming to the experiment. 2. The amount of tea we give to the subject. We think that 2 cups of tea may cause the subjects to urinate, so 1 cup of tea may be a better choice. |
AuthorClass of 2019 at Emma Willard School. Archives
May 2018
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