Leading limb biomechanical response following compelled forward and descending body shift in old versus young adults
Falls pose a significant health risk in older adults, with stair descent falls carrying particularly severe consequences. Reduced balance control and limb support due to aging-related physiological and neuromuscular decline are critical components in increased falling risk in older adults. Understanding the age-associated abnormalities in balance control and limb support strategies during sudden forward and downward body shift could reveal potential biomechanical deficits responsible for increased falling risks in older adults. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - January 6, 2024 Category: Orthopaedics Authors: Soroosh Sadeh, Keng-Hung Shen, Forouzan Foroughi, Hao-Yuan Hsiao Source Type: research
Two-to-three times increase in natural hip and lumbar non-sagittal plane kinematics can lead to anterior cruciate ligament injury and cartilage failure scenarios during single-leg landings
Our results support the ability of previously reported high-risk kinematics in the literature to induce injury and add to the literature by reporting extreme motion limits leading to injurious cases. Therefore, training programs able to modify these motions during single-leg landings may reduce the risk of ACL injury and cartilage trauma. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - January 6, 2024 Category: Orthopaedics Authors: Sara Sadeqi, Grant E. Norte, Amanda Murray, Deniz U. Erbulut, Vijay K. Goel Source Type: research
A biomechanical analysis of turning during gait in individuals with different subtypes of Parkinson's disease
The difficulties primarily occur during the anticipatory phase of the turn, which affects the entire task. The greater the length of the anticipatory step, the greater the length of the step taken to turn as well as the step taken after turning. And the greater the velocity, the greater the step length, and to fewer steps taken to perform the task. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - January 2, 2024 Category: Orthopaedics Authors: Andressa Leticia Miri, Larissa Laskovski, Maria Eduarda Brand ão Bueno, Dionatan Costa Rodrigues, Felipe Arruda Moura, Suhaila Mahmoud Smaili Source Type: research
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(Source: Clinical Biomechanics)
Source: Clinical Biomechanics - January 1, 2024 Category: Orthopaedics Source Type: research
Changes in passive hamstring stiffness after primary anterior cruciate ligament reconstruction: A prospective study with comparison of healthy controls
Similarly to neuromuscular factors that are traditionally altered after anterior cruciate ligament reconstruction, evaluating passive knee flexors stiffness changes over time could provide supplementary insights into postoperative muscle recovery. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - January 1, 2024 Category: Orthopaedics Authors: Joffrey Drigny, Emmanuel Reboursi ère, Cesar Praz, Henri Guermont, Christophe Hulet, Antoine Gauthier Source Type: research
Trunk and glenohumeral joint adaptations to manual wheelchair propulsion over a cross-slope: An exploratory study
Both the uphill arm technique and trunk kinematics are important to propel over a cross-slope both efficiently and safely. Accordingly, tips about posture and kinematics are needed to teach this skill to manual wheelchair users. Additionally, as wheelchair positioning seems to influence the cross-slope skill, more research is needed to explore the impact of positioning devices (e.g., lateral supports) and wheelchair modifications (e.g., power assist wheels, handrim projections) on this skill. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 31, 2023 Category: Orthopaedics Authors: Najoua Assila, Paula W. Rushton, Sonia Duprey, Micka ël Begon Source Type: research
Gait pattern analysis before and after periacetabular osteotomy in unilaterally affected dysplastic patients
Unilaterally affected dysplastic patients have an asymmetrical gait pattern that is only partially corrected by periacetabular osteotomy even when radiographic and clinical targets are met. Differences between the limbs could be explained in part by a learned antalgic pattern and muscle weaknesses leading to complex compensation mechanisms. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 27, 2023 Category: Orthopaedics Authors: Ariane Lavoie-Hudon, Philippe Corbeil, Victor Grenier, Rapha ël Poulin, Sylvie Turmel, Julien Dartus, Stéphane Pelet, Etienne L. Belzile Source Type: research
Pain alleviation improves balance control and muscular coordination of lower limbs in patients with chronic ankle instability during sinusoidal perturbations
Individuals who had chronic ankle instability and ankle pain demonstrated impaired balance control during sinusoidal perturbations. Mitigating pain improved their balance performance, evident in the center of pressure pattern and the coordination of lower limb muscles. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 26, 2023 Category: Orthopaedics Authors: Yungu Chen, Shengxuan Cao, Wenming Chen, Chao Zhang, Jiazhang Huang, Xu Wang, Xin Ma Source Type: research
Biomechanical comparison of two different compression screws for the treatment of odontoid fractures in human dens axis specimen.
Screw with sleeve nut achieves greater fragment compression and is more robust to screw stripping compared to classic compression screw. Whether the better biomechanical properties lead to a reduction of pseudoarthrosis has to be proven in clinical studies. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 26, 2023 Category: Orthopaedics Authors: Jan-Uwe M üller, Stephan Nowak, Marc Matthes, Dirk Thomas Pillich, Henry Werner Siegfried Schroeder, Jonas Müller Source Type: research
Dynamic gait stability in children with and without down syndrome during overground walking
Children with Down syndrome were capable of adjusting their margin-of-stability for fast walking and ankle-load conditions. However, children with Down syndrome walked with less mediolateral stability and anteroposterior mobility than typically developing children. Children with Down syndrome overcompensate the mediolateral foot placement to recapture their margin-of-stability and maintain gait stability. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 26, 2023 Category: Orthopaedics Authors: Matthew Beerse, Tasnuva Alam, Jianhua Wu Source Type: research
A finite element method study of the effect of vibration on the dynamic biomechanical response of the lumbar spine
Accurately simulating lumbar spine biodynamics requires the inclusion of the upper body mass in the lumbosacral spine model. The physiological curvature of the lumbar spine could escalate the risk of lumbar spine vibration injuries. It is more instructive to apply local high stress in the disc as a lumbar spine vibration safety evaluation parameter. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 25, 2023 Category: Orthopaedics Authors: Shuai Zhu, RuiChun Dong, ZhuangQi Lu, YunQiang Guo, Zhong Liu, Hong Liu Source Type: research
Association between quadriceps tendon elasticity and neuromuscular control in individuals with knee osteoarthritis
Stiffer tendon identified within the knee osteoarthritis group was associated with reduced neuromuscular control and knee joint proprioception. Stiffer quadriceps tendon may contribute to the poorer reported symptoms by knee osteoarthritis individuals. These findings may impact disease symptoms and progression which could lead to further joint impairment. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 11, 2023 Category: Orthopaedics Authors: Diane M. Dickson, Stephanie L. Smith, Gordon J. Hendry Source Type: research
Pelvic tilt affects superolateral coverage, but not superomedial coverage of the femoral head following periacetabular osteotomy
While pelvic tilt did not affect total femoral head coverage, it had a significant impact on the distribution of coverage within the superolateral region of the femoral head. Anterior pelvic tilt led to increased anterolateral coverage, but also had a negative impact on hip range of motion. An optimal surgical plan should achieve adequate coverage while not significantly limiting the patient's mobility. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 8, 2023 Category: Orthopaedics Authors: Ryan D. Blackwell, Stephen Parlamas, Nicholas J. Dunbar, Sabir K. Ismaily, David Rodriguez-Quintana, Alfred A. Mansour, Shuyang Han Source Type: research
Predictive simulations identify potential neuromuscular contributors to idiopathic toe walking
The simulations provide insights into how a musculotendon contracture combined with altered neural control could contribute to idiopathic toe walking. Insights into these neuromuscular mechanisms could guide future computational and experimental studies to gain improved insight into the cause of idiopathic toe walking. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 8, 2023 Category: Orthopaedics Authors: Kirsten Veerkamp, Marjolein M. van der Krogt, Niels F.J. Waterval, Thomas Geijtenbeek, H.P. John Walsh, Jaap Harlaar, Annemieke I. Buizer, David G. Lloyd, Christopher P. Carty Source Type: research
ISB clinical biomechanics award winner 2023: Medial gastrocnemius muscle and Achilles tendon interplay during gait in cerebral palsy
The findings revealed similar length changes of the medial gastrocnemius fascicles and Achilles tendon, highlighting the enhanced role of the muscle in absorbing energy during stance in cerebral palsy. These results, together with the current knowledge of increased intramuscular stiffness, suggest the exploitation of intramuscular passive forces for such energy absorption. (Source: Clinical Biomechanics)
Source: Clinical Biomechanics - December 4, 2023 Category: Orthopaedics Authors: Francesco Cenni, Nathalie Alexander, Maria Sukanen, Afet Mustafaoglu, Zhongzheng Wang, Ruoli Wang, Taija Finni Source Type: research
