Dall PM, Kerr A (2010) Frequency of the sit to stand task: an observational study of free-living adults. Appl Ergon 41(1):58–61. https://doi.org/10.1016/J.APERGO.2009.04.005
Grant PM, Dall PM, Kerr A (2011) Daily and hourly frequency of the sit to stand movement in older adults: a comparison of day hospital, rehabilitation ward and community living groups. Aging Clin Exp Res 23(5–6):437–44
Jensen J, Lundin-Olsson L, Nyberg L, Gustafson Y (2002) Falls among frail older people in residential care. Scand J Public Health 30(1):54–61. https://doi.org/10.1177/14034948020300011201
Rapp K, Becker C, Cameron ID, König H-H, Büchele G (2012) Epidemiology of falls in residential aged care: analysis of nore than 70,000 falls from residents of Bavarian nursing homes. J Am Med Dir Assoc 13(2):187–11876. https://doi.org/10.1016/J.JAMDA.2011.06.011
Fried LP, Ferrucci L, Darer J, Williamson JD, Anderson G (2004) Untangling the concepts of disability, frailty, and comorbidity: implications for improved targeting and care. J Gerontol Ser A: Biol Sci Med Sci 59(3):255–263. https://doi.org/10.1093/gerona/59.3.m255
Rubenstein LZ (2006) Clinical risk assessment, interventions and services falls in older people: epidemiology, risk factors and strategies for prevention. Age Ageing. https://doi.org/10.1093/ageing/afl084
Kotake T, Dohi N, Kajiwara T, Sumi N, Koyama Y, Miura T (1993) An analysis of sit-to-stand movements. Archi Phys Med Rehabil 74(10):1095–1099. https://doi.org/10.1016/0003-9993(93)90068-L
Schenkman M, Hughes MA, Samsa G, Studenski S (1996) The relative importance of strength and balance in chair rise by functionally impaired older individuals. J A Geriatr Soc 44(12):1441–1446. https://doi.org/10.1111/j.1532-5415.1996.tb04068.x
Kamnik R, Bajd T (2004) Standing-up robot: an assistive rehabilitative device for training and assessment. J Med Eng Technol 28(2):74–80. https://doi.org/10.1080/0309190032000112306
Fraiszudeen A, Yeow CH (2016) Soft robotic sit-To-stand trainer seat. In: Proceedings of the IEEE RAS and EMBS International Conference on biomedical robotics and biomechatronics, vol. 2016, p 673–679. IEEE Computer Society, UTown, Singapore. https://doi.org/10.1109/BIOROB.2016.7523703
Scaletta T, Komada S, Member Roberto Oboe S (2016) Development of a human assistive robot to support hip joint movement during sit-to-stand using non-linear springs. IEEJ J Ind Appli 5(3):261–266. https://doi.org/10.1541/ieejjia.5.261
Tsukahara A, Kawanishi R, Hasegawa Y, Sankai Y (2010) Sit-to-stand and stand-to-sit transfer support for complete paraplegic patients with Robot Suit HAL. Adv Robotics 24:1615–1638. https://doi.org/10.1163/016918610X512622
Huo W, Mohammed S, Amirat Y, Kong K (2016) Active impedance control of a lower limb exoskeleton to assist sit-to-stand movement. Proceedings - IEEE international conference on robotics and automation 2016. p 3530–3536. https://doi.org/10.1109/ICRA.2016.7487534
Shepherd MK, Rouse EJ (2017) Design and validation of a Torque-Controllable knee exoskeleton for sit-to-stand assistance. IEEE/ASME Trans Mechatron 22(4):1695–1704. https://doi.org/10.1109/TMECH.2017.2704521
Hughes MA, Myers BS, Schenkman ML (1996) The role of strength in rising from a chair in the functionally impaired elderly. J Biomech 29(12):1509–1513. https://doi.org/10.1016/S0021-9290(96)80001-7
Corrigan D, Bohannon RW (2001) Relationship between knee extension force and stand-up performance in community-dwelling elderly women. Arch Phys Med Rehabil 82(12):1666–1672. https://doi.org/10.1053/apmr.2001.26811
Yoshioka S, Nagano A, Himeno R, Fukashiro S (2007) Computation of the kinematics and the minimum peak joint moments of sit-to-stand movements. BioMed Eng Online 6(1):26. https://doi.org/10.1186/1475-925X-6-26
Hollman JH, Deusinger RH, Dillen LRV, Matava MJ (2002) Knee joint movements in subjects without knee pathology and subjects with injured anterior cruciate ligaments. Phys Ther 82(10):960–972. https://doi.org/10.1093/ptj/82.10.960
Hollman JH, Deusinger RH, Van Dillen LR, Matava MJ (2003) Gender differences in surface rolling and gliding kinematics of the knee. Clin Orthop Relat Res 413:208–221. https://doi.org/10.1097/01.blo.0000072902.36018.fe
Koo S, Andriacchi TP (2008) The knee joint center of rotation is predominantly on the lateral side during normal walking. J Biomech 41(6):1269–1273. https://doi.org/10.1016/J.JBIOMECH.2008.01.013
Huo W, Mohammed S, Moreno JC, Amirat Y (2016) Lower limb wearable robots for assistance and rehabilitation: a state of the art. IEEE Syst J 10(3):1068–1081. https://doi.org/10.1109/JSYST.2014.2351491
Morita R, Nabae H, Endo G, Suzumori K (2018) A proposal of a new rotational-compliant joint with oil-hydraulic McKibben artificial muscles. Adv Robotics 32(9):511–523. https://doi.org/10.1080/01691864.2018.1464946
Schulte FH (1961) The Characteristics of the McKibben artificial muscle. In: The application of external power in prosthetics and orthotics, p 94–115. National Academy of Sciences-National Research Council, Washington.
Kurumaya S, Nabae H, Endo G, Suzumori K (2017) Design of thin McKibben muscle and multifilament structure. Sens Actuators A 261:66–74. https://doi.org/10.1016/j.sna.2017.04.047
Radcliffe CW (1994) Four-bar linkage prosthetic knee mechanisms: kinematics, alignment and prescription criteria. Prosthet Orthot Int 18(3):159–173. https://doi.org/10.3109/03093649409164401
Karami M, Maurice G, Andre JM (2004) A model of exo-prosthesis of the knee optimized with respect to the physiological motion of condyles. ITBM-RBM 25(3):176–184. https://doi.org/10.1016/J.RBMRET.2004.03.003
Zavatsky AB, O’Connor JJ (1992) A model of human knee ligaments in the sagittal plane: part 2: fibre recruitment under load. Proc Inst Mech Eng Part H: J Eng Med 206(3):135–145. https://doi.org/10.1243/PIME_PROC_1992_206_281_02
Bertomeu JMB, Lois JMB, Guillem RB, Del Pozo ÁP, Lacuesta J, Mollà CG, Luna PV, Pastor JP (2007) Development of a hinge compatible with the kinematics of the knee joint. Prosthet Orthot Int 31(4):371–383. https://doi.org/10.1080/03093640601095842
Weisstein EW. Line-line intersection. Wolfram Research, Inc. http://mathworld.wolfram.com/Line-LineIntersection.html Accessed 13 Nov 2019
Zatsiorsky VM (2002) Kinetics of Human Motion. Human Kinetics, Champaign
De Leva P (1996) Adjustments to zatsiorsky-seluyanov’s segment inertia parameters. J Biomech 29(9):1223–1230. https://doi.org/10.1016/0021-9290(95)00178-6
Mak MKY, Levin O, Mizrahi J, Hui-Chan CWY (2003) Joint torques during sit-to-stand in healthy subjects and people with Parkinson’s disease. Clin Biomech 18(3):197–206. https://doi.org/10.1016/S0268-0033(02)00191-2
Kamali K, Akbari AA, Akbarzadeh A (2016) Trajectory generation and control of a knee exoskeleton based on dynamic movement primitives for sit-to-stand assistance. Adv Robotics 30(13):846–860. https://doi.org/10.1080/01691864.2016.1154800
Nath JD, Durfee WK (2017) Optimization and design principles of a minimal-weight, wearable hydraulic power supply. In: ASME 2017 Dynamic Systems and Control Conference, DSCC 2017, vol. 1. American Society of Mechanical Engineers, Tysons. https://doi.org/10.1115/DSCC2017-5046
Tani A, Endo G, Fukushima EF, Hirose S, Iribe M, Takubo T (2011) Study on a practical robotic follower to support home oxygen therapy patients-development and control of a mobile platform. In: IEEE/RSJ International conference on intelligent robots and systems, pp 2423–2429. Institute of Electrical and Electronics Engineers (IEEE), San Francisco. https://doi.org/10.1109/iros.2011.6094633