He, J. A., & Lerner, A. L. (2015, June), Introducing Uncertainty Analysis in Elbow Biomechanics: A Work in Progress at Two Educational Levels  Paper presented at 2015 ASEE Annual Conference & Exposition, Seattle, Washington. 10.18260/p.24368

\bibitem{asee_peer_24368}
  He, J. A., \& Lerner, A. L. (2015, June), \emph{Introducing Uncertainty Analysis in Elbow Biomechanics: A Work in Progress at Two Educational Levels}
  Paper presented at 2015 ASEE Annual Conference \& Exposition, Seattle, Washington.
  10.18260/p.24368

Jessica Ann He and Amy L Lerner.  "Introducing Uncertainty Analysis in Elbow Biomechanics: A Work in Progress at Two Educational Levels".  2015 ASEE Annual Conference & Exposition, Seattle, Washington, 2015, June.  ASEE Conferences, 2015.  https://peer.asee.org/24368 Internet.  23 Feb, 2025

\bibitem{asee_peer_24368}
  Jessica Ann He and Amy L Lerner.
  "Introducing Uncertainty Analysis in Elbow Biomechanics: A Work in Progress at Two Educational Levels".
  \emph{2015 ASEE Annual Conference \& Exposition, Seattle, Washington, 2015, June}.
  ASEE Conferences, 2015.
  https://peer.asee.org/24368 Internet.  23 Feb, 2025

@INPROCEEDINGS{asee_peer_24368
author = "Jessica Ann He and Amy L Lerner"
title = "Introducing Uncertainty Analysis in Elbow Biomechanics: A Work in Progress at Two Educational Levels"
booktitle = "2015 ASEE Annual Conference \& Exposition"
year = "2015"
month = "June"
address = "Seattle, Washington"
publisher = "ASEE Conferences"
note = {https://peer.asee.org/24368}
number = {10.18260/p.24368}
}

TY  - CPAPER
AB  -              Introducing Uncertainty Analysis in Elbow Biomechanics:                  A Work in Progress at Two Educational Levels         The educational goal of our research is to facilitate active learning during the introduction ofproblem-solving while incorporating uncertainty and variability in biomechanical analysis. In thisresearch, we have defined uncertainty as the inaccuracy in a model that stems from natural variability ininput parameters and imprecision in measurement techniques. At the high school level, learningobjectives include basic concepts of uncertainty in the context of biomechanics, including momentcalculations, weight estimations, and use of significant figures. At the college level, the learningobjectives include application of Analysis of Variance (ANOVA) to conduct sensitivity analyses andquantify the statistical significance in the observed effects.         Evaluation of our high school teaching model was conducted on two days with 28 high schoolstudents from the Upward Bound program at our university. The 60 minute module focused oncalculating the required force of the biceps muscle to hold up an apple at 90 degrees. Instruction beganwith a 10-15 minute lecture that introduced uncertainty, elbow biomechanics, anatomy, momentcalculations, and use of significant figures. The active learning component involved three differentinteractive workstations. Station 1 calcuated the biceps force with a PASCO mechanical arm system.Station 2 guided students to calculated the biceps force in models of their own arms and measurements ofapples. Station 3 calculated the biceps force in an average, small, and large sized person. Finally, themodule concluded with a discussion of the measurements and resulting calculations as well as a video ofa recently released prosthetic arm. Uncertainty was introduced in the measurement techniques and tools,as well as in the natural variability found in apples and humans. Effectiveness of the high school teachingmodule was evaluated based on results from an identical pre- and post- test that assessed the students’knowledge on moments, significant figures, relative weight dimensions, uncertainty, and interest inBiomedical Engineering. Results were evaluated based on a paired t-test (p<0.05 from both days. This demonstratesthe module is flexible and highly effective at introducing uncertainty analysis in elbow biomechanics. Theresults also revealed greater interest in Biomedical Engineering.         Our college level module will be evaluated with juniors in a BME course: BiomedicalComputation & Statistics in Spring 2015. The module will follow a similar format, but will emphasize theapplication of ANOVA statistics to a sensitivity analysis in elbow biomechanics modeling. The modulewill be incorporated into a lab exercise that introduces human variability, model customization,uncertainity, and sensitivity analysis on total model variance. Implementation of the college teachingmodule is still a work in progress, however the lab exercise has been scheduled and materials developed.This sensitivity-based ANOVA analysis is central to the Design of Experiments method used by manymedical device industries and is also emerging rapidly in the biomechanics research field. Both teachingmodules have been designed for dissemination to the engineering education community.       Figure 1. Results from Day 1 and Day 2       of the teaching module with a comparison       between the identical pre- and post-test  
AU  - Jessica Ann He
AU  - Amy L Lerner
CY  - Seattle, Washington
DA  - 2015/06/14
PB  - ASEE Conferences
TI  - Introducing Uncertainty Analysis in Elbow Biomechanics: A Work in Progress at Two Educational Levels
UR  - https://peer.asee.org/24368
DO  - 10.18260/p.24368
ER  -