BME100 s2015:Group7 9amL3
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LAB 3A WRITE-UP
Measurement taken from the oral thermometer and the pulse oximeter, and compared to the results taken from the Spree Band sensor and program. The data used in the analysis are taken from 4 volunteers, performing varies type of exercises; then compared to the Golden Standard of results. The first set of data are taken during each volunteer's resting period, before the start of the experiment; one reading every two minutes using each equipment stated, for five readings. Afterward, the each volunteers are asked to begin performing with the viscosity of exercises varying; with readings every 5 minutes, for 12 readings. The final set of data recorded is during the volunteer's cool-down period, where each volunteers are asked to rest and maintain normal heart rate; with each reading taken every two minutes, for 5 readings.
t score = -3.70390720479888
p value 0.00034491042362702
mean: Gold Standard = 94.8835, Spree = 101.9515
stdev: Gold Standard = 30.8409, Spree = 34.33868
standard error: Gold Standard = 2.941, Spree = 3.274
r^2 value = 0.6867
t score -8.25
p value = 1.5 *10^-12
mean Gold Standard = 97.25, Spree = 98.329
st dev Gold Standard = 1.19, Spree = 0.496
Std error Gold Standard = .127, Spree = 0.053
r^2 = 0.0245
The differences between the Spree and the Pulse Oximeter were found to be statistically significant. Because the p value of the differences between the groups was less that 5%, the two groups can be said to be different.
Additionally, the r values measuring the correlation between the two measurements was pitifully low, leading to the conclusion that the Spree does not effectively measure heart rate or temperature accurately.
In the Spree:
♦Connectivity is unreliable; possible improvement would be connections over Wi-fi.
♦Temperature recording is inconsistent; possible recommendation will be a removable head-thermometer in the band.
Additionally, the spree consistently over-estimates the heart rate of the user.
LAB 3B WRITE-UP
Target Population and Need
The target population include professional athletes and their trainers. Because of the expense and superior measurement the average athlete and trainer have no need for such advanced readings. Device will accurately test: heart rate, temperature, calories burned, acceleration, velocity, distance, blood pressure, breathing rate and sweat index.
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