Abstract
Standing from a chair is a demanding daily activity that many older adults find challenging because it requires large knee extension torques. Using a musculoskeletal model we first solve for the state trajectories that track the sit-to-stand movements of an older adult. Next, we solve for the state trajectories that predict a sit-to-stand movement by minimizing the sum of squared muscle activations. We use these simulation results to examine how well the predicted movements mimic the tracking solution and examine which of the nonlinear properties of muscle most affect the sit-to-stand movement.
Financial support from Carl Zeiss-Foundation is gratefully acknowledged.
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Notes
- 1.
Approved by the IRB of the medical faculty of Heidelberg University.
References
T. Pozaic, U. Lindemann, A.K. Grebe, W. Stork, Sit-to-stand transition reveals acute fall risk in activities of daily living. IEEE J. Transl. Eng. Health Med. 4, 1–1 (2016 Dec 1)
V. Norman-Gerum, J. McPhee, Constrained dynamic optimization of sit-to-stand motion driven by Bézier curves. J. Biomech. Eng. 140(12) (2018 Dec 1)
K. Mombaur, K.L. Hoang, How to best support sit to stand transfers of geriatric patients: Motion optimization under external forces for the design of physical assistive devices. J. Biomech. 58, 131–138 (2017 Jun 14)
M.F. Bobbert, D.A. Kistemaker, M.A. Vaz, M. Ackermann, Searching for strategies to reduce the mechanical demands of the sit-to-stand task with a muscle-actuated optimal control model. Clin. Biomech. 37, 83–90 (2016 Aug 1)
L.H. Sloot, M. Millard, C. Werner, K. Mombaur, Slow but Steady: Similar Sit-to-Stand balance at Seat-Off in older vs. younger adults. Front. Sports Act. Living 2 (2020)
M. Millard, A.L. Emonds, M. Harant, K. Mombaur, A reduced muscle model and planar musculoskeletal model fit for the simulation of whole-body movements. J. Biomech. 89, 11–20 (2019 May 24)
D.E. Anderson, M.L. Madigan, M.A. Nussbaum, Maximum voluntary joint torque as a function of joint angle and angular velocity: Model development and application to the lower limb. J. Biomech. 40(14), 3105–13 (2007 Jan 1)
T. Rantanen, T. Parkatti, E. Heikkinen, Muscle strength according to level of physical exercise and educational background in middle-aged women in Finland. Eur. J. Appl. Physiol. Occup. Physiol. 65(6), 507–512 (1992 Nov)
H.G. Bock, K.J. Plitt, A multiple shooting algorithm for direct solution of optimal control problems. IFAC Proc. Vol. 17(2), 1603–1608 (1984 Jul 1)
D.B. Leineweber, A. Schäfer, H.G. Bock, J.P. Schlöder, An efficient multiple shooting based reduced SQP strategy for large-scale dynamic process optimization: Part II: Software aspects and applications. Comput. Chem. Eng. 27(2):167–174 (2003 Feb 15)
K.H. Koch. PhD thesis, Ruprecht-Karls-Universität, 6, 2015
A.B. Schultz, N.B. Alexander, J.A. Ashton-Miller, Biomechanical analyses of rising from a chair. J. Biomech. 25(12), 1383–1391 (1992 Dec 1)
K. Hauer, C. Marburger, P. Oster, Motor performance deteriorates with simultaneously performed cognitive tasks in geriatric patients. Arch. Phys. Med. Rehabil. 83(2), 217–223 (2002 Feb 1)
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Millard, M., Mombaur, K. (2022). Sit-to-Stand Models of Older Adults Should Include Muscle Nonlinearities and Arms. In: Torricelli, D., Akay, M., Pons, J.L. (eds) Converging Clinical and Engineering Research on Neurorehabilitation IV. ICNR 2020. Biosystems & Biorobotics, vol 28. Springer, Cham. https://doi.org/10.1007/978-3-030-70316-5_53
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