The purpose of this study was to clarify criteria that can predict trajectories during the sit-to-stand movement. In particular, the minimum jerk and minimum torque-change models were examined. Three patterns of sit-to-stand movement from a chair, i.e., upright, natural, and leaning forward, were measured in five young participants using a 3-D motion analysis device (200 Hz). The trajectory of the center of mass and its smoothness were examined, and the optimal trajectories predicted by both models were evaluated. Trajectories of the center of mass predicted by the minimum torque-change model, rather than the minimum jerk model, resembled the measured movements in all rising movement patterns. The upright pattern required greater extension torque of the knee and ankle joints at the instant of seat-off. The leaning-forward pattern required greater extension hip torque and higher movement cost than the natural and upright patterns. These results indicate that the natural sit-to-stand movement might be a result of dynamic optimization.
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Hiroshi R. Yamasaki, Hiroyuki Kambara, and Yasuharu Koike
Stefan Schmid, Stéphane Armand, Zoltan Pataky, Alain Golay, and Lara Allet
An important prerequisite to carry out daily activities is the sit-to-stand movement. However, in obese people, this movement is characterized by altered biomechanics, which might lead to daily life activity impairments. The aim of this study was to investigate whether there are differences in kinetic and kinematic variables between three different BMI categories when performing a specific sit-to-stand test. Thirty-six adult women (BMI = 17–45 kg/m2) performed the sit-to stand test five times consecutively and as quickly as possible. Analyses of variance were used to determine differences between three BMI groups (normal or overweight: BMI < 30 kg/m2; obese: 30 ≤ BMI < 35; severely obese: BMI ≥ 35). Peak and mean vertical sacrum velocity indicated a decrease in severely obese subjects. Obese and severely obese individuals did not show higher fatigue over the five consecutive movements. Peak force and rate of force development decreased in normal or overweight subjects. The ability to successfully complete the test decreased with a higher BMI, probably due to a reduced ability to rapidly generate a high force.
Dimitrios-Sokratis Komaris, Cheral Govind, Andrew Murphy, Alistair Ewen, and Philip Riches
participants and patients with osteoarthritis of the knee. The results obtained in this study are in agreement with the findings in the observation study of older adults and people living with dementia performing the sit-to-stand movement by Dolecka et al. 22 Leaning forward was the most common movement
Cameron T. Gibbons, Polemnia G. Amazeen, and Aaron D. Likens
control in motor learning . Current Biology, 13 ( 2 ), 146 – 150 . PubMed ID: 12546789 doi:10.1016/S0960-9822(03)00007-1 10.1016/S0960-9822(03)00007-1 Fujimoto , M. , & Chou , L.S. ( 2012 ). Dynamic balance control during sit-to-stand movement: an examination with the center of mass acceleration
Mohammed M. Althomali and Susan J. Leat
-Cook , A. , & Woollacott , M.H. ( 2007 ). Motor control: Translating research into clinical practice . Philadelphia, PA : Lippincott Williams & Wilkins . Siriphorn , A. , Chamonchant , D. , & Boonyong , S. ( 2015 ). The effects of vision on sit-to-stand movement . Journal of Physical Therapy
Anantha Narayanan, Farzanah Desai, Tom Stewart, Scott Duncan, and Lisa Mackay
, picking up a pen from the ground 5 times, touching a mark 5 times, performing a sit-to-stand movement 5 times Controlled; 28 (16 males and 12 females); Patients diagnosed with axial spondylarthrosis, age = 43.7 (10.45) y SenseWear Pro 3 Armband (Bodymedia Inc, Pittsburgh, PA); 1; 2-axis accelerometer, 32
Nadège Tebbache and Alain Hamaoui
, E. ( 2015 ). Kinematics and knee muscle activation during sit-to-stand movement in women with knee osteoarthritis . Clinical Biomechanics, 30 ( 6 ), 599 – 607 . PubMed ID: 25846323 doi:10.1016/j.clinbiomech.2015.03.025 10.1016/j.clinbiomech.2015.03.025 Bouisset , S. , & Zattara , M. ( 1981
Yuwei Song, Momotaz Begum, Sajay Arthanat, and Dain P. LaRoche
Geriatrics Society, 56 ( 8 ), 1575 – 1577 . PubMed ID: 18808608 doi:10.1111/j.1532-5415.2008.01777.x 10.1111/j.1532-5415.2008.01777.x Chang , C.S. , Leung , C.Y. , Liou , J.J. , & Tsai , W.W. ( 2010 ). Evaluation of key points in the sit-to-stand movement using two force platforms . Perceptual
Neda Orakifar, Mohammad Jafar Shaterzadeh-Yazdi, Reza Salehi, Mohammad Mehravar, Neda Namnik, and Seyyed Arash Haghpanah
a chair in normal and low back pain subjects . Clin Biomech . 1994 ; 9 ( 2 ): 85 – 92 . doi:10.1016/0268-0033(94)90029-9 10.1016/0268-0033(94)90029-9 16. Yamada T , Demura S-I . Relationships between ground reaction force parameters during a sit-to-stand movement and physical activity and
Anthony Campitelli, Sally Paulson, Jennifer Vincenzo, Jordan M. Glenn, Joshua L. Gills, Megan D. Jones, Melissa Powers, and Michelle Gray
.J. ( 2002 ). Determinants of the sit-to-stand movement: A review . Physical Therapy, 82 ( 9 ), 866 – 879 . https://doi.org/10.1093/ptj/82.9.866 10.1093/ptj/82.9.866 Kostka , T. ( 2005 ). Quadriceps maximal power and optimal shortening velocity in 335 men aged 23–88 years . European Journal of
