SoPhy: A wearable Technology for Lower Limb Assessment in Video Consultations of Physiotherapy
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The document describes SoPhy, socks with sensors and a web interface designed to enhance physiotherapists' ability to assess lower limb movements during video consultations. A study was conducted with 10 physiotherapists and 1 actor to test SoPhy versus video alone. Physiotherapists reported higher diagnostic confidence and needing fewer repetitions of exercises like squats when using SoPhy. It captured weight distribution, range of motion, and foot orientation data not available through video alone. The findings suggest wearable sensors can provide deeper insights during telehealth assessments.
![Fewer Repetitions of Exercises
Over video, I can see the person only from
one direction. [...] The sock system provides
me this detailed information irrespective of
how the person is standing or sitting. I did not
ask the patient to turn backwards or sideways
when I had the sock data - the system was
already doing it for me. (P3)
Wednesday, 10 May 17](https://image.slidesharecdn.com/sophy-chi2017-170510185119/85/SoPhy-A-wearable-Technology-for-Lower-Limb-Assessment-in-Video-Consultations-of-Physiotherapy-25-320.jpg)
SoPhy: A wearable Technology for Lower Limb Assessment in Video Consultations of Physiotherapy
- 1. SoPhy: A Wearable Technology for Lower Limb Assessment in Video Consultations of Physiotherapy Deepti Aggarwal, Weiyi Zhang, Thuong Hoang, Bernd Ploderer, Frank Vetere, Mark Bradford Wednesday, 10 May 17
- 2. Video Consultations of Physiotherapy van Dyk 2014; Yellowlees 2005 Wednesday, 10 May 17
- 3. Bodily Communication in Physiotherapy Wednesday, 10 May 17
- 4. ACM DIS 2016 Wednesday, 10 May 17
- 5. Lower Body Movements Wednesday, 10 May 17
- 6. Limited Understanding of Subtle Differences Weight Distribution Range of Movement Wednesday, 10 May 17
- 7. Focused on the Upper Torso Wednesday, 10 May 17
- 8. Focusing Camera Removes the Context Wednesday, 10 May 17
- 9. Reduced confidence in assessment Less effective treatment Aggarwal et al. 2016 Wednesday, 10 May 17
- 10. Research Aim How can we design technologies to enhance diagnostic confidence of physiotherapists for assessing lower limb movements during video consultations? Wednesday, 10 May 17
- 11. What to capture? Wednesday, 10 May 17
- 12. Key aspects of lower body movements Weight Distribution Range of Movements Foot Orientation Wednesday, 10 May 17
- 13. How to capture? Wednesday, 10 May 17
- 14. SoPhy SOcks for PHYsiotherapy Socks with sensors Web interface Wednesday, 10 May 17
- 16. SoPhy web-interface Wednesday, 10 May 17
- 17. Short video available at: https://vimeo.com/188358214 Wednesday, 10 May 17
- 18. Lab study Clinician’s room 10 physiotherapists & 1 actor (patient) Patient’s room Wednesday, 10 May 17
- 19. Study Design (2x2) Extreme pain Low pain Factors: Consultation Technology & Pain Levels Wednesday, 10 May 17
- 20. Study Design (2X2) Independent Variables Consultation Technology - with SoPhy & without SoPhy Pain Levels - extreme and low Dependent Variables Weight Distribution, Range of Movement, Foot Orientation, Confidence, #Repetitions Data Collection Interviews, Questionnaire, Video Recording Wednesday, 10 May 17
- 21. Tasks for Participants Assess the patient’s exercises Organize 4 video sessions Fill in a questionnaire (total 4) Wednesday, 10 May 17
- 22. Tasks for Actor Dorsiflexion & Plantarflexion 1-leg tip-toes & 2-leg tip-toes Squats Wednesday, 10 May 17
- 23. Increase in Confidence The sock system offered confirmation to my hypothesis. I used the strategy of first seeing the video and then form an assessment. After a couple of repetitions with video, I used the interface to confirm my assessment. (P8) Exercises with SoPhy without SoPhy Squats F(1,36) = 10.97, p<.01 M = 5.75, SD = 1.06 M = 4.17, SD = 1.13 Wednesday, 10 May 17
- 24. Fewer Repetitions of Exercises Exercises with SoPhy without SoPhy Dorsiflexion F(1,36) = 6.99, p<.05 M = 8.10, SD = 3.21 M = 11.25, SD = 4.54 Plantarflexion F(1,36) = 6.14, p<.05 M = 7.45, SD = 3.88 M = 10.60, SD = 4.24 Squats F(1,36) = 8.36, p<.01 M = 6.05, SD = 2.48 M = 8.05, SD = 3.18 Wednesday, 10 May 17
- 25. Fewer Repetitions of Exercises Over video, I can see the person only from one direction. [...] The sock system provides me this detailed information irrespective of how the person is standing or sitting. I did not ask the patient to turn backwards or sideways when I had the sock data - the system was already doing it for me. (P3) Wednesday, 10 May 17
- 26. Deeper Insights on Weight Distribution It’s always challenging to understand weight bearing because the pressure points are not visible. It’s easy in cases when the person is putting more weight on one foot than other. But it is difficult to understand how the pressure is distributed across the foot, is it on the heels, or on the balls. (P8) Wednesday, 10 May 17
- 27. Design Considerations Wednesday, 10 May 17
- 28. Revealing Foot Contours Wednesday, 10 May 17
- 29. Opportunities for Other Media Wednesday, 10 May 17
- 30. Conclusion Extension of video consultations beyond audio- visual medium First exploration to enhance the ability of physiotherapists during video consultations Wednesday, 10 May 17
- 31. Deployments at the Hospital Wednesday, 10 May 17