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Technical Brief

Soft Actuating Sit-to-Stand Trainer Seat

[+] Author and Article Information
A. Fraiszudeen

Department of Biomedical Engineering,
4 Engineering Drive 3,
Engineering Block 4(E4) #04-08,
Singapore 117583
e-mail: bieaf@nus.edu.sg

C. H. Yeow

Department of Biomedical Engineering,
4 Engineering Drive 3,
Engineering Block 4(E4) #04-08,
Singapore 117583
e-mail: rayeow@nus.edu.sg

1Corresponding author.

Contributed by the Mechanisms and Robotics Committee of ASME for publication in the JOURNAL OF MECHANISMS AND ROBOTICS. Manuscript received March 30, 2017; final manuscript received September 28, 2018; published online November 13, 2018. Assoc. Editor: Robert J. Wood.

J. Mechanisms Robotics 11(1), 014501 (Nov 13, 2018) (5 pages) Paper No: JMR-17-1081; doi: 10.1115/1.4041630 History: Received March 30, 2017; Revised September 28, 2018

In this paper, we propose a novel type of soft robot for sit to stand (STS) training, which is made with soft bellow actuators. Analysis with five healthy human subjects revealed that there is a statistically significant decrease in the peak and mean muscle activation signal from three out of the four groups of lower limb muscle for STS transition, namely, tibialis anterior, hamstrings, and quadriceps. The peak muscle activation decreased most drastically on the quadriceps muscle group (0.726 ± 0.467 to 0.269 ± 0.334). As reduced muscle activation signal correlates to less muscular effort required by the users, the results show the effectiveness of the device in partially supporting the STS transition of the subject, which subsequently serves as an STS trainer device.

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References

Baker, S. P. , and Harvey, A. , 1985, “ Fall Injuries in the Elderly,” Clin. Geriatr. Med., 1, pp. 501–512. [CrossRef] [PubMed]
Ortman, J. M. , Velkoff, V. A. , and Hogan, H. , 2014, “ An Aging Nation: The Older Population in the United State,” U.S. Department of Commerce, U.S. Census Bureau, Washington, DC, accessed Sept. 14, 2017, https://www.census.gov/prod/2014pubs/p25-1140.pdf
Wim, J. , Hans, B. , and Henk, S. , 2002, “ Determinants of the Sit to Stand Movement: A Review,” Phys. Ther., 82(9), pp. 866–879. https://academic.oup.com/ptj/article/82/9/866/2857650 [PubMed]
Engardt, M. , and Olsson, E. , 1992, “ Body Weight-Bearing While Rising and Sitting down in Patients With Stroke,” Scand. J. Rehabil. Med., 24(2), pp. 67–74. https://www.ncbi.nlm.nih.gov/pubmed/?term=1604264 [PubMed]
Gross, M. , Stevenson, P. , Charette, S. , Pyka, G. , and Marcus, R. , 1998, “ Effect of Muscle Strength and Movement Speed on the Biomechanics of Rising From a Chair in Healthy Elderly and Young Women,” Gait Posture, 8(3), pp. 175–185. [CrossRef] [PubMed]
Fleischer, C. , and Hommel, G. , 2008, “ A Human–Exoskeleton Interface Utilizing Electromyography,” IEEE Trans. Rob., 24(4), pp. 872–882. [CrossRef]
[Fattah, A. , Agarwal, S. , Catlin, G. , and Hemnett, J. , 2005, “ Design of Passive Gravity-Balanced Assistive Device for Sit to Stand Tasks,” ASME J. Mech. Des., 128(5), pp. 1128–1140.
Matjačić, Z. , Zadravec, M. , and Oblak, J. , 2015, “ Sit-to-Stand Trainer: An Apparatus for Training Normal-like Sit to Stand Movement,” IEEE Trans. Neural Syst. Rehabil. Eng., 24(6), pp. 639–649. [CrossRef] [PubMed]
An, Q. , Ishikawa, Y. , Nakagawa, K. , Kuroda, A. , Oka, H. , and Yamakawa, H. , 2012, “ Evaluation of Wearable Gyroscope and Accelerometer Sensor (PocketIMU2) During Walking and Sit-to-Stand Motions,” 21st IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN), Paris, Sept. 9–13, pp. 731–736.
Kamnik, R. , and Bajd, T. , 2004, “ Standing Up Robot: An Assistive Rehabilitative Device for Training and Assessment,” J. Med. Eng. Technol., 28(2), pp. 74–80. [CrossRef] [PubMed]
Quintero, H. A. , Farris, R. J. , and Goldfarb, M. , 2011, “ Control and Implementation of a Powered Lower Limb Orthosis to Aid Walking in Paraplegic Individuals,” IEEE International Conference on Rehabilitation Robotics (ICORR), Zurich, Switzerland, June 29–July 1, pp. 1–6.
Yamamoto, H. , Kadone, H. , and Suzuki, K. , 2015, “ Wearable Inflatable Robot for Supporting Postural Transitions in Infants Between Sitting and Lying,” IEEE International Conference on Robotics and Biomimetics (ROBIO), Zhuhai, China, Dec. 6–9, pp. 2289–2294.
Jatsun, S. , Savin, S. , and Yatsun, A. , 2016, “ Motion Control Algorithm for a Lower Limb Exoskeleton Based on Iterative LQR and ZMP Method for Trajectory Generation,” Fifth International Workshop on Medical and Service Robots (MESROB), Graz, Austria, July 4–6, pp. 305–317.
Majidi, C. , 2013, “ A Perspective—Current Trends and Prospects of the Future,” Soft Rob., 1(1), pp. 5–11.
Salah, O. , Asker, A. , Ahmed, M. R. , El-Bab, F. , Samy, M. F. , Ramadan, A. A. , Sessa, S. , and Ahmed, A. , 2013, “ Development of Parallel Manipulator Sit to Stand Assistive Device for Elderly People,” IEEE Workshop on Advanced Robotics and Its Social Impacts (ARSO), Tokyo, Japan, Nov. 7–9, pp. 27–32.
Baiden, D. , and Ivlev, O. , 2013, “ Human-Robot-Interaction Control for Orthoses With Pneumatic Soft-Actuators—Concept and Initial Trail,” IEEE International Conference on Rehabilitation Robotics, (ICORR), Seattle, WA, June 24–26.
Jeyasurya, J. , Loos, M. , Hodgson, A. , and Croft, E. , 2013, “ Comparison of Seat, Waist and Arm Sit-to- Stand Assistance Modality in Elderly,” J. Rehabil. Res. Develop., 50(6), pp. 835–844. [CrossRef]
Rutherford, D. , Hurley, S. , and Hubley-Kozey, C. , 2014, “ Sit-to-Stand Transfer Mechanics in Healthy Adults: A Comprehensive Investigation of a Portable Lifting Seat Device,” Disability Rehabil.: Assistive Technol., 11(2), pp. 158–165. [CrossRef]
Kamnik, R. , Bajd, T. , Williamson, J. , and Murray-Smith, R. , 2005, “ Rehabilitation Robot Cell for Multimodal Standing Up Motion Augmentation,” IEEE International Conference on Robot and Automation (ROBOT 2005), Barcelona, Spain, Apr. 18–22, pp. 2277–2282.
Burnfield, Y. , Shu, J. , Buster, T. , Taylor, A. , McBride, M. , and Krause, M. , 2012, “ Kinematic and Electromyographic Analyses of Normal and Device-Assisted Sit-to-Stand Transfers,” Gait Posture, 36(3), pp. 516–522.
Shum, K. , Crosbie, J. , and Lee, R. , 2005, “ Effect of Low Back Pain on the Kinematics and Joint Coordination of the Lumbar Spine and Hip During Sit-to- Stand and Stand-to-Sit,” Spine, 30(17), pp. 1998–2004. [CrossRef] [PubMed]
Mederic, P. , Vasqui, V. , Plumet, F. , and Bimaud, P. , 2005, “ Sit to Stand Transfer Assisting by an Intelligent Walking-Aid,” 7th International Conference on Climbing and Walking Robots (CLAWAR 2004), Madrid, Spain, Sept. 22–24, pp. 1127–1138.
Zhang, F. , Ferrucci, L. , Culham, E. , Metter, J. , Guralink, J. , and Desphande, N. , 2013, “ Performance on Five Times Sit to Stand Task as a Predictor of Subsequent Falls and Disability in Older Persons,” J. Aging Health, 25(3), pp. 478–492. [CrossRef] [PubMed]
Lisa, L. , Ellen, M. , Roger, D. , and Hillary, S. , 2001, “ Mobility Difficulties Are Not Only a Problem of Old Age,” J. Gen. Intern. Med., 16(4), pp. 235–243. [CrossRef] [PubMed]
Fraiszudeen, A. , and Yeow, C. H. , 2016, “ Soft Robotic Sit-to-Stand Trainer Seat,” Sixth IEEE International Conference on Biomedical Robotics and Biomechatronics (BioRob), Singapore, June 26–29, pp. 673–679.

Figures

Grahic Jump Location
Fig. 1

((a)–(d)) The soft actuating STS trainer seat: (a) two soft bellow actuators when fully deflated, (b) fully inflated, (c) the complete device when fully deflated, and (d) fully inflated

Grahic Jump Location
Fig. 2

Schematic diagrammed of the control system of the soft actuating STS trainer

Grahic Jump Location
Fig. 3

Operational work flow of the soft actuating STS trainer seat. User sits on the device. Upon activating the inflation button of the device, user is elevated to semistanding position at 45 deg. The user then stands upright on their own effort. To sit down, the user sits on the device fully inflated 45 deg at semistanding position. Upon activating the deflation button, the user is steadily declined to sitting down position at 0 deg.

Grahic Jump Location
Fig. 4

Peak and mean muscle activation of 4 lower limb muscle group: (a) quadriceps*, (b) gastrocnemius, (c) tibialis anterior*, and (d) hamstrings* (P < 0.05)

Grahic Jump Location
Fig. 5

Electromyography muscle activation profile of four lower limb muscle group: (a) quadriceps, (b) tibialis anterior, (c) hamstrings, and (d) gastrocnemius (P < 0.05)

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