BME100 f2014:Group16 L3

From OpenWetWare

Jump to: navigation, search
BME 100 Fall 2014 Home
People
Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3
Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6
Course Logistics For Instructors
Photos
Wiki Editing Help
Image:BME494_Asu_logo.png


Contents

OUR TEAM

Christopher Saar
Christopher Saar
Romann Arizmendi
Romann Arizmendi
Gurpaul Sidhu
Gurpaul Sidhu
Leslie Bernardino
Leslie Bernardino
Sheania Morgan
Sheania Morgan
Emily Angeles Mancinas
Emily Angeles Mancinas

LAB 3A WRITE-UP

Descriptive Statistics

Table
Table


































































Analysis

For the temperature readings, the Paired T-Test result was 0.00000000 meaning that there is a statistically significant difference between the temperature readings on the Spree and Gold Standard Thermometers. For both data sets, a paired t-test was chosen because the same subject was tested and there were not multiple groups being analyzed. Moreover, the Pearson r-coefficient for the temperature graph was 0.09 meaning that there was nearly no relationship between the two methods of temperature measurement. Alternatively, the t-test result for heart rate yielded a value of 0.49 meaning that there was not a statistically significant difference between the Spree headband and the Gold Standard. Furthermore, the R- value of 0.96 depicts a nearly perfect linear correlation between the two methods of heart rate monitoring.




Results

Table
Table









Table
Table










Table
Table









Table
Table









Table
Table









Table
Table





































































































Summary/Discussion

One design flaw with the Spree was when preparing for the trials, the bluetooth connectivity did not always work and impeded groups from being able to get any data at all. It also froze briefly in the middle of the trials which subsequently threw off some of the readings. Another problem with the connectivity is that when the app itself when looking for other members phones, it would only find some of the phones but not all. So overall, the connectivity needs to be improved. The Spree device also does not accurately record temperature and was significantly different from the gold standard readings. This is because the Spree measures temperature on the surface of the skin and the skin is constantly regulating body temperature and would not be able to give an accurate value for actual internal body temperature. Aesthetically the device itself was not satisfactory because it is worn on the subjects forehead which can be inconvenient for the user. Though this does not affect the readings or accuracy of the product, it does effect the marketability. A less conspicuous design would lead to greater sales.




LAB 3B WRITE-UP

Target Population and Need

The target market of the TWX Temperature Wrist Extreme is a focused towards athletics and fitness focused on performance and endurance ages 18-55. Accurate body temperature is correlated with heart rate can establish a point of reference for athletes to measure the effectiveness of their core performance. The TWX satisfies the need for accurate internal temperature which has traditionally be inaccurate or represented by colors or arbitrary numerical values.




Device Design

This diagram illustrates three different views of the TWX wristband along with a close up of the logo. The material on the outside is shown to differ from the material present on the inner circumferential surface of the band.
This diagram illustrates three different views of the TWX wristband along with a close up of the logo. The material on the outside is shown to differ from the material present on the inner circumferential surface of the band.
























Inferential Statistics

The paired, 2 tailed t-test returned a p value of 0.995 meaning that there is no significant statistical difference between the average temperature readings of TWX and the Gold Standard. Furthermore, the standard deviations of TWX and Gold Standard were nearly identical meaning that the precision of both devices are comparable.

DATA
DATA


















Graph

Scatter Graph
Scatter Graph
















BAR Graph
BAR Graph




















Personal tools