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Parameter characteristics in intranasal drug delivery: A key to targeting medications to the olfactory airspace Clin. Biomech. (IF 1.8) Pub Date : 2024-03-13 Ryan M. Sicard, Dennis O. Frank-Ito
The nose is a viable pathway for topical drug delivery to the olfactory cleft for treatment of obstructive smell loss and nose-to-brain drug delivery. This study investigates how variations in nasal vestibule morphology influence intranasal spray drug transport to the olfactory cleft and olfactory roof/bulb regions. The unilateral nasal vestibule morphology in three healthy subjects with healthy normal
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Assessing site-specificity of the biomechanical properties of hamstring aponeuroses using MyotonPRO: A cadaveric study Clin. Biomech. (IF 1.8) Pub Date : 2024-03-13 Xiyao Shan, Shun Otsuka, Tomohito Okubo, Takao Takeuchi, Kaori Fukushige, Munekazu Naito
Hamstring muscles are the most frequently reported sites of muscle strain injuries, especially near the bi-articular muscles' myotendinous junction, where aponeurosis provides a connective tissue network linking muscle fibers to the tendon. This study aimed to investigate the reliability and site-specific differences of hamstring aponeuroses under different conditions (formalin and urea) using MyotonPRO
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Quadriceps composition and function influence downhill gait biomechanics >1 year following anterior cruciate ligament reconstruction Clin. Biomech. (IF 1.8) Pub Date : 2024-03-12 Alex Nilius, Derek R. Dewig, Christopher D. Johnston, Brian G. Pietrosimone, J. Troy Blackburn
Quadriceps dysfunction is common following anterior cruciate ligament reconstruction and contributes to aberrant gait biomechanics. Changes in quadriceps composition also occur in these patients including greater concentrations of non-contractile tissue. The purpose of this study was to evaluate associations between quadriceps composition, function, and gait biomechanics in individuals with anterior
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The association between obesity, knee pain, and gait during stair descent in older adults with knee osteoarthritis Clin. Biomech. (IF 1.8) Pub Date : 2024-03-12 Paige E. Rice, Gabriel A. Pate, Ryan D. Hill, Paul DeVita, Stephen P. Messier
Obesity and knee osteoarthritis adversely affect activities of daily living in older adults. Together, the complexities of their interaction on mobility, including stair negotiation, are unresolved. The purpose of this study was to determine the relationship between obesity, pain, and stair negotiation in older adults with knee osteoarthritis. Older adults with symptomatic knee osteoarthritis and overweight
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Upper limb motor dysfunction is associated with fragmented kinetics after brain injury Clin. Biomech. (IF 1.8) Pub Date : 2024-03-07 Emilie Mathieu, David Gasq, Sylvain Crémoux, Célia Delcamp, Camille Cormier, Philippe Pudlo, David Amarantini
Characterization of motor deficits after brain injury is important for rehabilitation personalization. While studies reported abnormalities in the kinematics of paretic and non-paretic elbow extension for patients with brain injuries, kinematic analysis is not sufficient to explore how patients deal with musculoskeletal redundancy and the energetic aspect of movement execution. Conversely, interarticular
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A comparison between manual and automated event detection for a drop vertical jump task using motion capture Clin. Biomech. (IF 1.8) Pub Date : 2024-03-05 Alex M. Loewen, Hannah L. Olander, Carlos Carlos Jr, Sophia Ulman
The use of movement screens as a clinical tool for injury risk assessment requires variables to be extracted across specific phases of interest. While manually selecting task events is the traditional method, automated event detection is an effective technique that maintains consistency across a cohort. This study aimed to examine variations in event identification, comparing manual detection and the
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Influence of musculoskeletal pain during gait on kinematics and selective motor control in individuals with spastic cerebral palsy: A pilot study Clin. Biomech. (IF 1.8) Pub Date : 2024-03-05 Gilad Sorek, Marije Goudriaan, Itai Schurr, Simon-Henri Schless
Individuals with cerebral-palsy commonly present with altered kinematics and selective-motor-control during gait, and may also experience musculoskeletal pain. This pilot study aims to investigate if the immediate experience of musculoskeletal pain during gait influences kinematics and selective-motor-control in individuals with spastic cerebral-palsy. Retrospective treadmill-based gait-analysis data
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Individuals with knee osteoarthritis show few limitations in balance recovery responses after moderate gait perturbations Clin. Biomech. (IF 1.8) Pub Date : 2024-03-05 R.J. Boekesteijn, N.L.W. Keijsers, K. Defoort, A.C.H. Geurts, K. Smulders
Knee osteoarthritis causes structural joint damage. The resultant symptoms can impair the ability to recover from unexpected gait perturbations. This study compared balance recovery responses to moderate gait perturbations between individuals with knee osteoarthritis and healthy individuals. Kinematic data of 35 individuals with end-stage knee osteoarthritis, and 32 healthy individuals in the same
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Center of pressure palindromes reveals a wobbling standing balance in scoliotic girls Clin. Biomech. (IF 1.8) Pub Date : 2024-03-05 Sébastien Leteneur, Mathias Blandeau, Franck Barbier, Nader Farahpour, Paul Allard
This study characterized the center of pressure planar displacement by palindromic strings. The objective is to test if the center of pressure pathway of able-bodied girls and those with a moderate and severe scoliosis displayed similar palindromic tendencies. The center of pressure excursions of 21 able-bodied girls were compared to 14 girls with a moderate scoliosis and 14 girls with severe one.
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Lower limb squat biomechanics and select clinical measures in chronic ankle instability Clin. Biomech. (IF 1.8) Pub Date : 2024-02-27 David Werner, Lauren Casey, Ethan Myers, Joaquin A. Barrios
Individuals with chronic ankle instability often present with clinical and biomechanical abnormalities, however squat biomechanics have not been investigated. The purpose of this study was to compare select clinical assessments and squat biomechanics between individuals with and without chronic ankle instability. Fifteen individuals with chronic ankle instability and a matched control group were studied
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Correcting for asymmetry of the proximal tibial epiphysis is warranted to determine postoperative alignment deviations in kinematic alignment from planned alignment of the tibial component on the native tibia Clin. Biomech. (IF 1.8) Pub Date : 2024-02-22 Alexander J. Nedopil, Ethan Rego, Andrew M. Hernandez, John M. Boone, Stephen M. Howell, Maury L. Hull
In total knee arthroplasty, unrestricted kinematic alignment aims to restore pre-arthritic lower limb alignment and joint lines. Joint line orientations of the contralateral healthy proximal tibia might be used to evaluate accuracy of tibial component alignment post-operatively if asymmetry is minimal. Our objective was to evaluate left-to-right asymmetry of the proximal tibial epiphysis in posterior
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Leaf spring exercise: A safe quadriceps strengthening exercise after anterior cruciate ligament reconstruction Clin. Biomech. (IF 1.8) Pub Date : 2024-02-21 Maki Koyanagi, Takayuki Matsuo, Naruhiko Nakae, Ryo Okimoto, Shota Nobekawa, Hideki Tsukuda, Issei Ogasawara, Konsei Shino
Leg extensions should be avoided in the early stages after anterior cruciate ligament reconstruction because the force exerted by the quadriceps muscle leads to anterior tibial displacement. To allow for safe quadriceps training in the knee extension range during this period, we devised the leaf spring exercise, which involves placing subjects in the prone position with their knee slightly flexed and
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Examination of knee extensor and valgus moment arms of the patellar tendon in older individuals with and without knee osteoarthritis Clin. Biomech. (IF 1.8) Pub Date : 2024-02-20 Masashi Taniguchi, Akihiro Asayama, Masahide Yagi, Yoshihiro Fukumoto, Tetsuya Hirono, Momoko Yamagata, Ryusuke Nakai, Masashi Kobayashi, Noriaki Ichihashi
Joint moment arm is a major element that determines joint torque. This study aimed to investigate factors associated with knee extensor and valgus moment arms of the patellar tendon in older individuals with and without knee osteoarthritis. Thirty-six participants with knee osteoarthritis (mean age, 78.1 ± 6.0 years) and 43 healthy controls (mean age, 73.0 ± 6.3 years) were analyzed. Magnetic resonance
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Framework for early detection and classification of balance pathologies using posturography and anthropometric variables Clin. Biomech. (IF 1.8) Pub Date : 2024-02-20 Arnab Sarmah, Raghav Aggarwal, Sarth Sameer Vitekar, Shunsuke Katao, Lipika Boruah, Satoshi Ito, Subramani Kanagaraj
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Mechanics of dynamic compression plate application in fracture fixation Clin. Biomech. (IF 1.8) Pub Date : 2024-02-16 Hwabok Wee, Jacob Staub, Zachary Koroneos, Allen Kunselman, J. Spence Reid, Gregory S. Lewis
Dynamic compression plating is a fundamental type of bone fracture fixation used to generate interfragmentary compression. The goal of this study was to investigate the mechanics of the surgical application of these plates, specifically how plate prebend, screw location, fracture gap, and applied torque influence the resulting compressive pressures. Synthetic bones with transverse fractures were fixed
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Age-related modifications of muscle synergies during daily-living tasks: A scoping review Clin. Biomech. (IF 1.8) Pub Date : 2024-02-15 Cloé Dussault-Picard, Sara Havashinezhadian, Nicolas A. Turpin, Florent Moissenet, Katia Turcot, Yosra Cherni
Aging is associated with changes in neuromuscular control that can lead to difficulties in performing daily living tasks. Muscle synergy analysis allows the assessment of neuromuscular control strategies and functional deficits. However, the age-related changes of muscle synergies during functional tasks are scattered throughout the literature. This review aimed to synthesize the existing literature
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Kinematic analysis in post-stroke patients with moderate to severe upper limb paresis and non-disabled controls Clin. Biomech. (IF 1.8) Pub Date : 2024-02-15 Xinyun Huang, Ouping Liao, Shuyun Jiang, Jing Li, Xiaopeng Ma
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The impact of whole-body vibration training and proprioceptive neuromuscular facilitation on biomechanical characteristics of lower extremity during cutting movement in individuals with functional ankle instability: A parallel-group study Clin. Biomech. (IF 1.8) Pub Date : 2024-02-15 Huimeng Chen, Wenxia Hu, Yuduo Liu, Jia Na, Qiujie Li, Xianglin Wan
We compared the effects of whole-body vibration training and proprioceptive neuromuscular facilitation on the biomechanical characteristics of the lower limbs in functional ankle instability patients during cutting movement to ascertain the superior rehabilitation method. Twenty-two male College students with unilateral functional ankle instability volunteered for this study and were randomly divided
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Epimuscular myofascial force transmission between the levator scapulae muscle and the upper fiber of the serratus anterior or rhomboid minor muscles Clin. Biomech. (IF 1.8) Pub Date : 2024-02-06 Keita Kawabuchi, Kenta Yamane, Shota Maniwa, Kyohei Inoue, Masatoshi Nakamura
This study investigated the epimuscular myofascial force transmission between the levator scapulae, serratus anterior, and rhomboid minor muscles. The participants included 10 healthy males (a total of 20 shoulders). Differences in the shear moduli of the levator scapulae, serratus anterior, and rhomboid minor muscles were measured in the resting and levator scapulae stretching positions using shear
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Turning speed as a more responsive metric of age-related decline in mobility: A comparative study with gait speed Clin. Biomech. (IF 1.8) Pub Date : 2024-02-05 Angela R. Weston, Keith R. Lohse, Andrew Kittelson, Laurie A. King, Patty Carlson-Kuhta, Leland E. Dibble, Martina Mancini
Navigating your environment requires both straight-line gait as well as turning. Gait speed normative values are well established and utilized in determining a person's functional status, however, it has limitations. This study sought to examine whether turning speed declines with age and how it compared to gait speed age-related decline. A secondary analysis was performed on 275 community dwelling
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The influence of femoral lytic tumors segmentation on autonomous finite element analysis Clin. Biomech. (IF 1.8) Pub Date : 2024-02-02 Oren Rachmil, Kent Myers, Omri Merose, Amir Sternheim, Zohar Yosibash
The validated CT-based autonomous finite element system (Yosibash et al., 2020) is used in clinical practice to assist orthopedic oncologists in determining the risk of pathological femoral fractures due to metastatic tumors. The finite element models are created automatically from CT-scans, assigning to lytic tumors a relatively low stiffness as if these were a low-density bone tissue because the
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Validating the measurement of passive Musculo-articular wrist stiffness without intentional or reactive contraction using axillary plexus block Clin. Biomech. (IF 1.8) Pub Date : 2024-02-02 Thibaut Libert, Christine Detrembleur, Francois Melebeck, Anh Phong Nguyen
Passive stiffness describes how easily a joint may move passively. To accurately measure wrist stiffness, an electro-oscillation device was developed. The objectives were to 1) ensuring that the measurement are free from intentional or reflex contraction, 2) analyzing how forearm anatomy affects the passive stiffness of the wrist and 3) determining the clinical practical relevance of the device. In
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Medially wedged foot orthoses generate greater biomechanical effects than thin-flexible foot orthoses during a unilateral drop jump task on level and inclined surfaces Clin. Biomech. (IF 1.8) Pub Date : 2024-02-01 Ahmed Dami, Eléna Payen, Nader Farahpour, Kelly Robb, Pier-Luc Isabelle, Gabriel Moisan
Foot orthoses are therapeutic insoles designed to induce various effects on lower limb biomechanics. However, conflicting findings in previous research, highlight the need to better understand how foot orthoses with different features affect lower limb biomechanics during challenging tasks, particularly during unilateral drop jump landings. Seventeen participants with flat feet were recruited to participate
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The influence of jump-landing direction on dynamic postural stability following anterior cruciate ligament reconstruction Clin. Biomech. (IF 1.8) Pub Date : 2024-02-01 Penny L. Head, Richard Kasser, Susan Appling, Thomas Cappaert, Kunal Singhal, Audrey Zucker-Levin
Traditional testing prior to return to sport following anterior cruciate ligament reconstruction typically involves jump-landing tasks in the forward direction. As injury is most likely the result of multiplanar neuromuscular control deficits, assessment of dynamic postural stability using landing tasks that require multiplanar stabilization may be more appropriate. The purpose of this study was to
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Effects of surface profile on porcine dural mechanical properties Clin. Biomech. (IF 1.8) Pub Date : 2024-01-28 Atsutaka Tamura, Chikano Sakaue
Cerebrospinal fluid leakage through the spinal meninges is difficult to diagnose and treat. Moreover, its underlying mechanism remains unknown. Considering that the dura mater is structurally the strongest and outermost membrane among the three-layered meninges, we hypothesized that a dural mechanical tear would trigger spontaneous cerebrospinal fluid leakage, especially when a traumatic loading event
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Differences in kinematic parameters during gait between the patients with knee osteoarthritis and healthy controls using an insole with a single inertial measurement unit: A case-control study Clin. Biomech. (IF 1.8) Pub Date : 2024-01-28 Haruki Yaguchi, Keita Honda, Yusuke Sekiguchi, Chenhui Huang, Kenichiro Fukushi, Zhenwei Wang, Kentaro Nakahara, Masayuki Kamimura, Takashi Aki, Ken Ogura, Shin-Ichi Izumi
An inertial measurement unit is small and lightweight, allowing patient measurements without physical constraints. This study aimed to determine the differences in kinematic parameters during gait using an insole with a single inertial measurement unit in healthy controls and on both sides in patients with knee osteoarthritis. Twenty patients with knee osteoarthritis and 13 age-matched controls were
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A scoping review of applications of artificial intelligence in kinematics and kinetics of ankle sprains - current state-of-the-art and future prospects Clin. Biomech. (IF 1.8) Pub Date : 2024-01-24 Yun Xin Teoh, Jwan K. Alwan, Darshan S. Shah, Ying Wah Teh, Siew Li Goh
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Dynamic joint stiffness in individuals with femoroacetabular impingement syndrome pre- and post-hip arthroscopy Clin. Biomech. (IF 1.8) Pub Date : 2024-01-24 Madeline Grosklos, Jennifer Perry, Megan Elwood, Kate Jochimsen, Stephanie Di Stasi
Patients with hip-related pain often fail to return to their desired level of activity following hip arthroscopy. Lasting biomechanics alterations may be one potential explanation. Dynamic joint stiffness assesses the mechanistic controls of the lower limb during high impact movements, and thus, may provide valuable clinical targets to improving movement and optimizing return to activity after surgery
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The contribution of the ligamentum teres to the hip fluid seal: A biomechanics study Clin. Biomech. (IF 1.8) Pub Date : 2024-01-23 Ian Al'Khafaji, Yvonne Olszewski, Georgina Clarnette, Edward Settle, Lukas Ernstbrunner, John O'Donnell, David Ackland
The suction seal of the hip plays an important role in maintaining hip stability; however, the function of the ligamentum teres in maintaining this seal remains poorly understood. This study aimed to evaluate the effectiveness of the hip suction seal in ligamentum teres deficient hips for joint positions occurring during gait. Six fresh-frozen human cadaveric hips were dissected and mounted to an Instron
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Cadaveric biomechanical studies of ADDISC total lumbar disc prosthesis Clin. Biomech. (IF 1.8) Pub Date : 2024-01-17 Pablo Jorda-Gomez, Vicente Vanaclocha, Amparo Vanaclocha, Carlos M. Atienza, Vicente Belloch, Juan-Manuel Santabarbara, Carlos Barrios, Nieves Saiz-Sapena, Enrique Medina-Ripoll, Leyre Vanaclocha
Most total disc replacements provide excessive mobility and not reproduce spinal kinematics, inducing zygapophyseal joint arthritic changes and chronic back pain. In cadaveric lumbosacral spines, we studied if a new lumbar disc prosthesis kinematics mimics the intact intervertebral disc. In eight cold preserved cadaveric lumbosacral spines, we registered the movement ranges in flexion, extension, right
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Can external work during walking in scoliosis patients be estimated from spatiotemporal parameters? Clin. Biomech. (IF 1.8) Pub Date : 2024-01-12 Y. Delpierre, S. Armand
Patients with scoliosis present gait impairments compared to healthy subjects. Clinically, spine deformity is evaluated with Cobb angle, a standard measurement to determine and track the progression of scoliosis. Scoliosis is a biomechanical trouble, dependant of external forces and muscular activity. External work is currently analyzed in patients with scoliosis because this work sums up consequences
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Improved joint function when reaching behind the back is associated with patient reported outcomes in individuals with rotator cuff tears following exercise therapy Clin. Biomech. (IF 1.8) Pub Date : 2024-01-12 Luke T. Mattar, Camille C. Johnson, Tom H. Gale, Adam J. Popchak, William J. Anderst, Volker Musahl, James J. Irrgang, Richard E. Debski
Reaching behind the back is painful for individuals with rotator cuff tears. The objectives of the study were to determine changes in glenohumeral kinematics when reaching behind the back, passive range of motion (RoM), patient reported outcomes and the relationships between kinematics and patient reported outcomes following exercise therapy. Eighty-four individuals with symptomatic isolated supraspinatus
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Relationship between coordination variability and Osgood-Schlatter disease in male junior youth soccer players -cross-sectional study using an inertial measurement unit- Clin. Biomech. (IF 1.8) Pub Date : 2024-01-12 Naoya Wada, Yota Abe, Rie Nakazawa, Masaaki Sakamoto, Tsuyoshi Tajika
Osgood-Schlatter disease is a common overuse injury, and motor coordination is discussed as a risk factor; however, no reports have examined motor coordination in young soccer players with Osgood-Schlatter disease. This study aimed to investigate the difference in motor coordination between Osgood-Schlatter disease-affected and non-affected soccer players on a junior youth soccer team. This cross-sectional
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A functional brace for treating Colles fractures; volunteer trial of a new design Clin. Biomech. (IF 1.8) Pub Date : 2024-01-11 Douglas Wardlaw, Ann H. Murdoch
Presently used Colles' fracture treatments have similar outcomes with significant complications. Previous studies of a dynamic functional fracture brace, achieving similar or better results had no significant complications. A novel brace design is described to achieve optimal patient outcomes. Patient forearm measurements combined with data from a previously tested brace provided parameters for a brace
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The relationship between knee flexion excursion and mechanical stress during gait in medial knee osteoarthritis Clin. Biomech. (IF 1.8) Pub Date : 2024-01-10 Masaya Anan, Kazuki Tokuda, Kenji Tanimoto, Tomonori Sawada
A decrease in knee flexion excursion during the loading response may affect not only quadriceps muscle weakness, pain, and inflammatory symptoms, but also lead to physical function decline and activity limitation. The aim of this investigation was to clarify the relationship between knee flexion excursion during the loading response and mechanical stress on the knee joint, muscle strength, pain, and
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Peak patellar tendon force progressions during heavy load single-leg squats on level ground and decline board Clin. Biomech. (IF 1.8) Pub Date : 2024-01-09 Michiel Hagen, Joanna Chebly, Bram Dhaen, Noah Fassian, Matteo Salvalaggio, Danilo S. Catelli, Sabine Verschueren, Jos Vanrenterghem
Progressive tendon loading programs for patellar tendinopathy typically include single-leg squats with heavy weights either on level ground or on a decline board. Changes in patellar tendon force due to variations of the heavy load single-leg squat have not yet been objectively quantified. The objective of this study was to investigate the influence of the mass of an external weight and the use of
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A bioengineering investigation of cervical collar design and fit: Implications on skin health Clin. Biomech. (IF 1.8) Pub Date : 2024-01-09 Laurence J. Russell, Tamara Dodd, Daniel Kendall, Amber Lazenbury, Abigail Leggett, Sophie Payton-Haines, Liudi Jiang, Davide Filingeri, Peter R. Worsley
Cervical collars restrict cervical spine movement to minimise the risk of spinal cord injury. Collars apply mechanical loading to the skin putting it at risk of skin damage. Indeed, cervical collar-related pressure ulcers are unacceptably prevalent, especially at the occiput, mandibles, and chin. Collar design and fit are often key considerations for prevention. This comprehensive study evaluated four
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Leading limb biomechanical response following compelled forward and descending body shift in old versus young adults Clin. Biomech. (IF 1.8) Pub Date : 2024-01-06 Soroosh Sadeh, Keng-Hung Shen, Forouzan Foroughi, Hao-Yuan Hsiao
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
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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 Clin. Biomech. (IF 1.8) Pub Date : 2024-01-06 Sara Sadeqi, Grant E. Norte, Amanda Murray, Deniz U. Erbulut, Vijay K. Goel
Analyzing sports injuries is essential to mitigate risk for injury, but inherently challenging using approaches. Computational modeling is a powerful engineering tool used to access biomechanical information on tissue failure that cannot be obtained otherwise using traditional motion capture techniques. We extrapolated high-risk kinematics associated with ACL strain and cartilage load and stress from
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A biomechanical analysis of turning during gait in individuals with different subtypes of Parkinson's disease Clin. Biomech. (IF 1.8) Pub Date : 2024-01-03 Andressa Leticia Miri, Larissa Laskovski, Maria Eduarda Brandão Bueno, Dionatan Costa Rodrigues, Felipe Arruda Moura, Suhaila Mahmoud Smaili
Turning while walking is a complex component of locomotor capacity, which can be challenging in the daily lives of people with Parkinson's disease. The aim of the study was to compare biomechanical strategies during turning of gait in individuals with Parkinson's disease and its different clinical subtypes. A cross-sectional study, comprising of 43 individuals with idiopathic Parkinson's disease, divided
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Changes in passive hamstring stiffness after primary anterior cruciate ligament reconstruction: A prospective study with comparison of healthy controls Clin. Biomech. (IF 1.8) Pub Date : 2024-01-01 Joffrey Drigny, Emmanuel Reboursière, Cesar Praz, Henri Guermont, Christophe Hulet, Antoine Gauthier
The mechanical properties of knee flexors muscles contribute to reducing anterior cruciate ligament loading. This case-control study evaluated the passive knee flexors stiffness after primary anterior cruciate ligament reconstruction with comparison of healthy controls. After anterior cruciate ligament reconstruction, 88 participants (24.5 [8.6] years, 56,8% males) had two isokinetic tests at 4 and
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Trunk and glenohumeral joint adaptations to manual wheelchair propulsion over a cross-slope: An exploratory study Clin. Biomech. (IF 1.8) Pub Date : 2023-12-31 Najoua Assila, Paula W. Rushton, Sonia Duprey, Mickaël Begon
Background Cross-slopes are often encountered by manual wheelchair users propelling within an urban setting. While propulsion over cross-slopes is more difficult than on level surfaces, little is known about how the users counter the downhill turning tendency of the wheelchair over cross-slopes. This study aimed to identify the adaptations of the manual wheelchair users to the presence of cross-slopes
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A finite element method study of the effect of vibration on the dynamic biomechanical response of the lumbar spine Clin. Biomech. (IF 1.8) Pub Date : 2023-12-26 Shuai Zhu, RuiChun Dong, Zhong Liu, Hong Liu, ZhuangQi Lu, YunQiang Guo
Background Studies focusing on lumbar spine biomechanics are very limited, and the mechanism of the effect of vibration on lumbar spine biodynamics is unclear. To provide guidance and reference for lumbar spine biodynamics research and vibration safety assessment, this study aims to investigate the effects of different vibrations on lumbar spine biodynamics. Methods A validated finite element model
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Pain alleviation improves balance control and muscular coordination of lower limbs in patients with chronic ankle instability during sinusoidal perturbations Clin. Biomech. (IF 1.8) Pub Date : 2023-12-27 Yungu Chen, Shengxuan Cao, Wenming Chen, Chao Zhang, Jiazhang Huang, Xu Wang, Xin Ma
Background It is well established that individuals with chronic ankle instability manifest deficits in balance control and muscle activation. Given the prevalence of pain as a prominent symptom in this population, there is a need for in-depth investigation of its role in contributing to these impairments. Methods A Stewart platform was used to generate translational sinusoidal perturbations in the
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Dynamic gait stability in children with and without Down syndrome during overground walking Clin. Biomech. (IF 1.8) Pub Date : 2023-12-26 Matthew Beerse, Tasnuva Alam, Jianhua Wu
Background Challenging children with Down syndrome to walk fast and with external ankle load has demonstrated acute adjustments, such as increased step length and decreased step width, and improved joint stability. However, it is unknown to what extent these task constraints affect gait stability. Assessing dynamic gait stability through margin-of-stability not only quantifies adjustments related to
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Gait pattern analysis before and after periacetabular osteotomy in unilaterally affected dysplastic patients Clin. Biomech. (IF 1.8) Pub Date : 2023-12-27 Ariane Lavoie-Hudon, Philippe Corbeil, Victor Grenier, Raphaël Poulin, Sylvie Turmel, Julien Dartus, Stéphane Pelet, Etienne L. Belzile
Patients with acetabular dysplasia have an abnormal acetabular geometry which results in insufficient coverage of the femoral head. This coverage deficiency reduces contact surfaces within the joint, accelerating the wear of the articular cartilage and predisposing patients to early osteoarthritis. Periacetabular osteotomy is a surgical treatment of acetabular dysplasia that aims to reorient the acetabulum
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Biomechanical comparison of two different compression screws for the treatment of odontoid fractures in human dens axis specimen. Clin. Biomech. (IF 1.8) Pub Date : 2023-12-26 Jan-Uwe Müller, Stephan Nowak, Marc Matthes, Dirk Thomas Pillich, Henry Werner Siegfried Schroeder, Jonas Müller
Background Lag screw osteosynthesis for odontoid fractures has a high rate of pseudoarthrosis, especially in elderly patients. Besides biomechanical properties of the different screw types, insufficient fragment compression or unnoticed screw stripping may be the main causing factors for this adverse event. The aim of the study was to compare two screws in clinical use with different design principles
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Association between quadriceps tendon elasticity and neuromuscular control in individuals with knee osteoarthritis Clin. Biomech. (IF 1.8) Pub Date : 2023-12-12 Diane M. Dickson, Stephanie L. Smith, Gordon J. Hendry
Background Knee osteoarthritis is a complex condition with established risk factors such as female sex, increasing age and body mass index, reduced quadriceps muscle strength and knee injury. Despite known associated risks, the role and behaviour of knee tendons in knee osteoarthritis remains unclear. This study explores the association between quadriceps tendon elasticity, muscle strength, neuromuscular
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Predictive simulations identify potential neuromuscular contributors to idiopathic toe walking Clin. Biomech. (IF 1.8) Pub Date : 2023-12-10 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
Background Most cases of toe walking in children are idiopathic. We used pathology-specific neuromusculoskeletal predictive simulations to identify potential underlying neural and muscular mechanisms contributing to idiopathic toe walking. Methods A musculotendon contracture was added to the ankle plantarflexors of a generic musculoskeletal model to represent a pathology-specific contracture model
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Pelvic tilt affects superolateral coverage, but not superomedial coverage of the femoral head following periacetabular osteotomy Clin. Biomech. (IF 1.8) Pub Date : 2023-12-09 Ryan D. Blackwell, Stephen Parlamas, Nicholas J. Dunbar, Sabir K. Ismaily, David Rodriguez-Quintana, Alfred A. Mansour, Shuyang Han
Background Pelvic tilt is an important sagittal parameter that varies greatly among individuals. The objective of this study was to quantify the effect of pelvic tilt on femoral head coverage and range of motion in a dysplastic population following periacetabular osteotomy. Methods Twenty-three dysplastic hips from 19 patients (17 female, 2 male) were included in this study. Three-dimensional models
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ISB clinical biomechanics award winner 2023: Medial gastrocnemius muscle and Achilles tendon interplay during gait in cerebral palsy Clin. Biomech. (IF 1.8) Pub Date : 2023-12-04 Francesco Cenni, Nathalie Alexander, Maria Sukanen, Afet Mustafaoglu, Zhongzheng Wang, Ruoli Wang, Taija Finni
Background The interplay between the medial gastrocnemius muscle and the Achilles tendon is crucial for efficient walking. In cerebral palsy, muscle and tendon remodelling alters the role of contractile and elastic components. The aim was to investigate the length changes of medial gastrocnemius belly and fascicles, and Achilles tendon to understand their interplay to gait propulsion in individuals
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Effects of bone mineral density at the lateral sclerotic boundary on the femoral head collapse onset in osteonecrosis of the femoral head: A preliminary study Clin. Biomech. (IF 1.8) Pub Date : 2023-11-26 Mingjian Xu, Goro Motomura, Takeshi Utsunomiya, Satoshi Ikemura, Ryosuke Yamaguchi, Noriko Yamamoto, Hidenao Tanaka, Yusuke Ayabe, Kousei Sakamoto, Youhua Wang, Yasuharu Nakashima
Background In the natural course of osteonecrosis of the femoral head, sclerotic changes at the boundary of necrotic lesion gradually occur until femoral head collapse. This study aims to examine the effects of bone mineral density at the lateral boundary of necrotic lesion on a subsequent femoral head collapse. Methods We developed patient-specific finite element models of 9 hips with subsequent collapse
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Rapid online correction of reach-to-manipulate movements in children with developmental coordination disorder: A pilot kinematic comparison study Clin. Biomech. (IF 1.8) Pub Date : 2023-11-25 Quting Huang, Li-Chieh Kuo, Kenneth N.K. Fong, Chi-Wen Chien
Background Children with developmental coordination disorder show difficulties in making rapid online corrections, and this has been demonstrated in experiments where reaching/pointing movements were employed. However, typical hand movements in real-life contexts involve subsequent movements, such as grasping and manipulating objects after reaching. This study aimed to reinvestigate online correction
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Quantifying changes in shoulder orientation between the prone and supine positions from magnetic resonance imaging Clin. Biomech. (IF 1.8) Pub Date : 2023-11-29 Fangchao Pan, Kejia Khoo, Gonzalo D. Maso Talou, Freda Song, Deirdre McGhee, Anthony J. Doyle, Poul M.F. Nielsen, Martyn P. Nash, Thiranja P. Babarenda Gamage
Background Predicting breast tissue motion using biomechanical models can provide navigational guidance during breast cancer treatment procedures. These models typically do not account for changes in posture between procedures. Difference in shoulder position can alter the shape of the pectoral muscles and breast. A greater understanding of the differences in the shoulder orientation between prone
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Breast simulation pipeline: From medical imaging to patient-specific simulations Clin. Biomech. (IF 1.8) Pub Date : 2023-11-28 Arnaud Mazier, Stéphane P.A. Bordas
Background Breast-conserving surgery is the most acceptable operation for breast cancer removal from an invasive and psychological point of view. Before the surgical procedure, a preoperative MRI is performed in the prone configuration, while the surgery is achieved in the supine position. This leads to a considerable movement of the breast, including the tumor, between the two poses, complicating
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Shear wave elastography demonstrates different material properties between the medial collateral ligament and anterolateral ligament Clin. Biomech. (IF 1.8) Pub Date : 2023-11-25 Kenan Alzouhayli, Nathan D. Schilaty, Yi Wei, Alexander W. Hooke, Jacob L. Sellon, Nathaniel A. Bates
Background Anterolateral ligament and medial collateral ligament injuries could happen concomitantly with anterior cruciate ligament ruptures. The anterolateral ligament is injured more often than the medial collateral ligament during concomitant anterior cruciate ligament ruptures although it offers less restraint to knee movement. Comparing the material properties of the medial collateral ligament
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Changes in in vivo three dimensional shoulder kinematics following latissimus dorsi tendon transfer for irreparable posterosuperior rotator cuff tears: A systematic review with meta-analysis Clin. Biomech. (IF 1.8) Pub Date : 2023-11-14 Vitor La Banca, João Artur Bonadiman, Felipe Fernandes Gonzalez, Jonathan Adam Gustafson, Gustavo Leporace, Grant E. Garrigues, Jorge Chahla, Leonardo Metsavaht
Background Latissimus dorsi transfer is a surgical procedure that can be used for treating posterosuperior rotator cuff tears. The procedure leads to improved shoulder function via alterations in the force vector couple around the shoulder. However, there is still no consensus on the biomechanical changes resulting from latissimus dorsi transfer. Methods We performed a systematic review of the literature
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Time course of surface electromyography during walking of children with spastic cerebral palsy treated with botulinum toxin type A and its rehabilitation implications Clin. Biomech. (IF 1.8) Pub Date : 2023-11-15 Matteo Cioni, Antonino Casabona, Rosario Ferlito, Mariangela Pisasale, Domenico Marco Romeo, Giulia Messina, Maria Stella Valle
Background The timing of the effects of botulinum toxin A on spastic muscles is not yet fully clarified. The goal of this study was to follow the temporal changes of surface electromyographic activity of lower limb muscles during walking, after a therapeutic dose of botulinum toxin A injected into the calf muscles of children with spastic cerebral palsy. Methods A group of children with spastic equinus