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MYO ARMBAND FOR
PHYSIOTHERAPY HEALTHCARE:
A CASE STUDY USING GESTURE
RECOGNITION APPLICATION
Mithileysh Sathiyanarayananan
Sharanya Rajan
COMSNETS 2016
Bangalore, India
INTRODUCTION
• Since there is a need for innovative and new medical
technologies in the healthcare, we identified Thalmic’s “MYO
Armband”, which is used for gaming systems and controlling
applications in mobiles and computers.
• We can exploit this development in the field of medicine and
healthcare to improve public health care system.
MYO
• We spotted “MYO diagnostics”, a computer-based application
developed by Thalmic labs to understand Electromyography (EMG)
lines (graphs), bits of vector data, and electrical signals of our
complicated biology inside our arm.
• The human gestures will allow to gather huge amount of data and
series of EMG lines which can be analysed to detect medical
abnormalities and hand movements.
MYO ARMBAND
Source: MYO
MYO HAND GESTURES AND MAP
APPLICATIONS
• The design of interactive maps shows
some conventions related to touch
screen gestures as Zoom, Panning,
Focusing, among other commands;
• When transporting up these interactions
to a navigation using hands and arms,
changes are needed in the systems.
MYO HAND GESTURES
MYO RECOGNITION APPROACH
• The recognition approach in MYO is based on sensors and the
use of physical objects to capture the movements of the hand.
• It is characterized by using a process called electromyography
(EMG); identifying the gesture by moving the arm muscles.
Based on the electrical impulses generated by muscles, 8 EMG
sensors in MYO are responsible to recognize and perform each
gesture.
STUDY METHOD
• First set of questionnaire addressed in the research presents the
results of the SUS model (System Usability Scale), in order to
understand the performance of medical students (users) to the
software;
• Aiming at the comprehension of the ergonomic aspects of
gestural interaction through the MYO, a second set of
questionnaire was developed.
• Both questionnaires used Likert Scale.
Screenshot of the MYO Diagnostics application: before the
gesture movements. Source: MYO
Screenshot of the MYO Diagnostics application: after the
gesture movements. Source: MYO
STUDY 1 RESULTS
In this study, SUS score is 69.21(Based on the SUS model, score below 64 are
not acceptable). Based on the results,
•Medical students were interested in using MYO in their day-to-day life and
happy to suggest to the patients in future.
•Medical students felt MYO was easy to use but they felt it was unnecessarily
complex.
•Medical students felt they don’t need support of a technical person to assist
them when they use MYO.
•Medical students felt there was lot of inconsistency in MYO connector
(probably because of latency issues).
•Medical students felt confident using MYO but they needed to learn a lot of
things before they could get going with it.
STUDY 2 RESULTS
• Social Acceptability: We were interested to know how the user feels when using
MYO Armband to analyse his/her own movements. So, the question was asked
“would you like to use the MYO in your day to-day life and will you recommend to
your patients in the future?”. The results were positive, the participants (medical
students) supported the use of MYO.
• Ease of use and learning: We were interested to know if the application was easy
to learn using MYO. So, the question was asked “Is the gestures used in the
application easy to learn?”. The participants opinionated that they were not very
difficult to learn (mode = 4, median = 4, standard deviation = 0.55). We also
noticed that the device does not have a precise answer to gestures executed
(displays latency) sometimes confusing interpreted gestures and generating
frustration in users.
STUDY 2 RESULTS (CONTD.)
• Comfort and ability to perform gestures: Participants felt comfortable not only
when using the device but when performing gestures with the same (mode = 5,
median = 5, standard deviation = 0.67).
• Stress/Effort: to analyze this criteria, the Likert scale was changed to the following
classifications: the effort = 1 and stress / painful = 5. Thus participants felt some
effort is needed to perform the gesture commands.
CONCLUSION AND FUTURE
WORKS
• the wearable device has a potential to be used in the medical field but
needs improvement in the physical device (MYO) and the software.
• the accuracy of gestures execution should be optimized;
• the execution of actions must be performed with considerable
emphasis, leading to an interaction which can lead to fatigue and
discomfort to the user.
THANKS
Mithileysh Sathiyanarayananan
M.Sathiyanarayanan@brighton.ac.uk
Sharanya Rajan
Sharu.rajan043@gmail.com
Always lead a healthy life!

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MYO Armband for Physiotherapy Healthcare: A Case Study Using Gesture Recognition Application

  • 1. MYO ARMBAND FOR PHYSIOTHERAPY HEALTHCARE: A CASE STUDY USING GESTURE RECOGNITION APPLICATION Mithileysh Sathiyanarayananan Sharanya Rajan COMSNETS 2016 Bangalore, India
  • 2. INTRODUCTION • Since there is a need for innovative and new medical technologies in the healthcare, we identified Thalmic’s “MYO Armband”, which is used for gaming systems and controlling applications in mobiles and computers. • We can exploit this development in the field of medicine and healthcare to improve public health care system.
  • 3. MYO • We spotted “MYO diagnostics”, a computer-based application developed by Thalmic labs to understand Electromyography (EMG) lines (graphs), bits of vector data, and electrical signals of our complicated biology inside our arm. • The human gestures will allow to gather huge amount of data and series of EMG lines which can be analysed to detect medical abnormalities and hand movements.
  • 5. MYO HAND GESTURES AND MAP APPLICATIONS • The design of interactive maps shows some conventions related to touch screen gestures as Zoom, Panning, Focusing, among other commands; • When transporting up these interactions to a navigation using hands and arms, changes are needed in the systems.
  • 7. MYO RECOGNITION APPROACH • The recognition approach in MYO is based on sensors and the use of physical objects to capture the movements of the hand. • It is characterized by using a process called electromyography (EMG); identifying the gesture by moving the arm muscles. Based on the electrical impulses generated by muscles, 8 EMG sensors in MYO are responsible to recognize and perform each gesture.
  • 8. STUDY METHOD • First set of questionnaire addressed in the research presents the results of the SUS model (System Usability Scale), in order to understand the performance of medical students (users) to the software; • Aiming at the comprehension of the ergonomic aspects of gestural interaction through the MYO, a second set of questionnaire was developed. • Both questionnaires used Likert Scale.
  • 9. Screenshot of the MYO Diagnostics application: before the gesture movements. Source: MYO
  • 10. Screenshot of the MYO Diagnostics application: after the gesture movements. Source: MYO
  • 11. STUDY 1 RESULTS In this study, SUS score is 69.21(Based on the SUS model, score below 64 are not acceptable). Based on the results, •Medical students were interested in using MYO in their day-to-day life and happy to suggest to the patients in future. •Medical students felt MYO was easy to use but they felt it was unnecessarily complex. •Medical students felt they don’t need support of a technical person to assist them when they use MYO. •Medical students felt there was lot of inconsistency in MYO connector (probably because of latency issues). •Medical students felt confident using MYO but they needed to learn a lot of things before they could get going with it.
  • 12. STUDY 2 RESULTS • Social Acceptability: We were interested to know how the user feels when using MYO Armband to analyse his/her own movements. So, the question was asked “would you like to use the MYO in your day to-day life and will you recommend to your patients in the future?”. The results were positive, the participants (medical students) supported the use of MYO. • Ease of use and learning: We were interested to know if the application was easy to learn using MYO. So, the question was asked “Is the gestures used in the application easy to learn?”. The participants opinionated that they were not very difficult to learn (mode = 4, median = 4, standard deviation = 0.55). We also noticed that the device does not have a precise answer to gestures executed (displays latency) sometimes confusing interpreted gestures and generating frustration in users.
  • 13. STUDY 2 RESULTS (CONTD.) • Comfort and ability to perform gestures: Participants felt comfortable not only when using the device but when performing gestures with the same (mode = 5, median = 5, standard deviation = 0.67). • Stress/Effort: to analyze this criteria, the Likert scale was changed to the following classifications: the effort = 1 and stress / painful = 5. Thus participants felt some effort is needed to perform the gesture commands.
  • 14. CONCLUSION AND FUTURE WORKS • the wearable device has a potential to be used in the medical field but needs improvement in the physical device (MYO) and the software. • the accuracy of gestures execution should be optimized; • the execution of actions must be performed with considerable emphasis, leading to an interaction which can lead to fatigue and discomfort to the user.