abstract：:Flatfoot is a risk factor for patellofemoral pain syndrome (PFPS), and excessive rearfoot eversion occurring in flatfoot has been associated with the development and progression of PFPS; however, the mechanism remains unclear. This study aimed to investigate transverse shank and frontal rearfoot coordination patterns ...

journal_title：Journal of biomechanics

authors： Takabayashi T,Edama M,Inai T,Kubo M

更新日期：2021-01-22 00:00:00

abstract：:Stationary cycling is typically recommended following total knee arthroplasty (TKA) operations. However, knee joint biomechanics during cycling remains mostly unknown for TKA patients. Biomechanical differences between the replaced and non-replaced limb may inform applications of cycling in TKA rehabilitation. The pur...

journal_title：Journal of biomechanics

authors： Hummer E,Thorsen T,Weinhandl JT,Cates H,Zhang S

更新日期：2021-01-22 00:00:00

abstract：:Multi-fragment fractures are still a challenge: current clinical practice relies on plates and screws. Treatment of fractures of the proximal humerus has the intra-operative risk of articular damage when inserting multiple screws. Distal-varus collapse of the head is a frequent complication in osteoporotic patients. T...

journal_title：Journal of biomechanics

authors： Cristofolini L,Ruspi ML,Marras D,Cavallo M,Guerra E

更新日期：2021-01-22 00:00:00

abstract：:Intramedullary femoral nails provide an ideal mechanical axis for periprosthetic fracture fixation. Slotted nails allow a connection to a total knee arthroplasty (TKA) stem. This study aims to compare implant and construct stiffness, interfragmentary movement and cycles to failure between an antegrade slotted femoral ...

journal_title：Journal of biomechanics

authors： Lenz M,Acklin YP,Kasper LA,Mischler D,Varga P,Zderic I,Gehweiler D,Klos K,Gueorguiev B,Stoffel K

更新日期：2021-01-22 00:00:00

abstract：:Although a significant proportion of patient falls occur during egress from the hospital bed, the biomechanical adaptations during egress from different bed heights are still largely unknown. The purpose of this study was to evaluate the effect of hospital bed height on natural transition during egress in patients wit...

journal_title：Journal of biomechanics

authors： Xu H,Li X,Shi Y,An L,Taylor D,Christman M,Morse J,Merryweather A

更新日期：2021-01-22 00:00:00

abstract：:This study explored transient characteristics of body sway during single-leg quiet stance in young ballet dancers (n = 41) and young healthy adults (n = 58). We compared the groups in terms of center of pressure (CoP) parameters (CoP velocity and amplitude, averaged across the duration of the 30-s trial), and the tran...

journal_title：Journal of biomechanics

authors： Kozinc Ž,Šarabon N

更新日期：2021-01-22 00:00:00

abstract：:Inertial measurement unit systems (IMU) are increasingly used in sports. However, no algorithm evaluating the instantaneous swimming velocity has been validated on the four swimming strokes, or on dive start. Our objective is to develop and validate a new method to measure instantaneous swimming velocity on athletes p...

journal_title：Journal of biomechanics

authors： Clément J,Charbonneau M,Thompson M

更新日期：2021-01-19 00:00:00

abstract：:Clinical decisions on interventions to improve function in children with cerebral palsy (CP) are based, in part, on hypothesized interactions amongst physical signs of CP and functional deficits. However, a knowledge gap exists regarding associations between spasticity and gait function. This study quantified associat...

journal_title：Journal of biomechanics

authors： Bowal N,Nettel-Aguirre A,Ursulak G,Condliffe E,Robu I,Goldstein S,Emery C,Ronsky JL,Kuntze G

更新日期：2021-01-16 00:00:00

abstract：BACKGROUND:Performing a sit-to-stand (STS) can be a challenging task for older adults because of age-related declines in neuromuscular strength and coordination. We investigated the effects of different initial foot positions (IFPs) on kinematics, muscle activation patterns, and balance control during a STS in younger ...

journal_title：Journal of biomechanics

authors： Jeon W,Hsiao HY,Griffin L

更新日期：2021-01-13 00:00:00

abstract：:When recovering balance from a lateral perturbation, younger adults tend to stabilize balance with a single lateral sidestep while older adults often take multistep responses. Using multiple steps to recover balance is consistently associated with increased fall risk, altered body center of mass (CoM) control and inst...

journal_title：Journal of biomechanics

authors： Borrelli J,Creath R,Gray VL,Rogers MW

更新日期：2021-01-04 00:00:00

abstract：:The active control of the trunk plays an important role in frontal plane gait stability. We characterized trunk control in response to different step widths using a novel feedback system and examined the different effects of wide and narrow step widths as they each present unique task demands. Twenty healthy young adu...

journal_title：Journal of biomechanics

authors： Shih HS,Gordon J,Kulig K

更新日期：2021-01-04 00:00:00

abstract：:Dynamic balance in the frontal plane requires active control, which is accomplished largely through control of mediolateral foot placement. Individuals without mobility impairments have the ability to compensate for variability in foot-placement to maintain their balance; however, it is unknown how individuals respond...

journal_title：Journal of biomechanics

authors： Brough LG,Klute GK,Neptune RR

更新日期：2020-12-28 00:00:00

abstract：:The objective assessment of biomechanical asymmetries during movement tasks is used to monitor rehabilitation following anterior cruciate ligament reconstruction (ACLR). Marker placement is an important source of methodological variability within human motion analysis. It is currently unclear how marker placement erro...

journal_title：Journal of biomechanics

authors： McFadden C,Daniels K,Strike S

更新日期：2020-12-24 00:00:00

abstract：:Modeling flow field in tumor regions interstitial space is of primary importance, because of the importance of advection in macromolecule drug delivery. Its deformation has also to be taken into account because of the forces caused by the fluid; if the tumor region is not isothermal, this deformation can be also stron...

journal_title：Journal of biomechanics

authors： Andreozzi A,Iasiello M,Netti PA

更新日期：2020-12-02 00:00:00

abstract：:Conventional magnetic resonance imaging (MRI) is not capable of detecting signal from the deep cartilage due to its short transverse relaxation time (T2). Moreover, several quantitative MRI techniques are significantly influenced by the magic angle effect. The combinations of ultrashort echo time (UTE) MRI with magnet...

journal_title：Journal of biomechanics

authors： Namiranian B,Jerban S,Ma Y,Dorthe EW,Masoud-Afsahi A,Wong J,Wei Z,Chen Y,D'Lima D,Chang EY,Du J

更新日期：2020-12-02 00:00:00

abstract：:Distal biceps tendon ruptures have been reported to be associated with narrowing of the proximal radioulnar space. There have been no studies that three-dimensionally measured the distance between the bicipital tuberosity and the proximal ulna during active motion. The purpose of this study was to three-dimensionally ...

journal_title：Journal of biomechanics

authors： Matsuki K,Sugaya H,Takahashi N,Tokai M,Ueda Y,Hoshika S,Hamada H,Banks SA

更新日期：2020-12-02 00:00:00

abstract：:Hypoplastic left heart syndrome (HLHS) represents approximately 9% of all congenital heart defects and is one of the most complex, with the left side of the heart being generally underdeveloped. Numerous studies demonstrate that intracardiac fluid flow patterns in the embryonic and fetal circulation can impact cardiac...

journal_title：Journal of biomechanics

authors： Zebhi B,Wiputra H,Howley L,Cuneo B,Park D,Hoffman H,Gilbert L,Yap CH,Bark D Jr

更新日期：2020-11-09 00:00:00

abstract：:The purpose of this study was to provide a quantitative description of residual femur motion within the socket during gait and to explore the relationship between residual femur motion and patient-reported comfort and function. It was hypothesized that increased residual bone movement would correlate to worse patient-...

journal_title：Journal of biomechanics

authors： Gale T,Yang S,McGough R,Fiedler G,Anderst W

更新日期：2020-11-09 00:00:00

abstract：:Evaluation of workers' body posture in workstations is a prerequisite to estimate spinal loads and assess risk of injury for the subsequent design of preventive interventions. The Microsoft Kinect™ sensor is, in this regard, advantageous over the traditional skin-marker-based optical motion capture systems for being m...

journal_title：Journal of biomechanics

authors： Asadi F,Arjmand N

更新日期：2020-11-09 00:00:00

abstract：:It has been suggested that cross bridge kinetics and residual force enhancement (RFE) affect force in the stretch-shortening cycle (SSC). Because cross bridge kinetics and titin isoforms, which are thought to be related to RFE, differ between muscles, the SSC effect may be also muscle-dependent. Thus, we compared the ...

journal_title：Journal of biomechanics

authors： Fukutani A,Herzog W

更新日期：2020-11-09 00:00:00

abstract：:Rigid body attitude and single-joint kinematics are typically expressed using three Cardan angles which represent rotations in anatomical planes. It was recently shown in the Biomechanics literature that Cardan angles inaccurately estimate true mean attitude due to an important mathematical inadequacy: attitude under-...

journal_title：Journal of biomechanics

authors： Pataky TC,Challis JH

更新日期：2020-10-09 00:00:00

abstract：:The periodontal ligament (PDL) is a critical player in the maintenance of tooth health, acting as the primary stabilizer of tooth position. Recent studies have identified two unique regions within the PDL, the 'dense collar' region and the 'furcation' region, which exhibit distinct structural and compositional differe...

journal_title：Journal of biomechanics

authors： Connizzo BK,Naveh GRS

更新日期：2020-10-09 00:00:00

abstract：:Isokinetic dynamometers are the gold standard tools used to assess in vivo joint and muscle function in human subjects, however, the large size and high cost of these devices prevents their widespread use outside of traditonal biomechanics labs. In this study, we developed a mobile dynamometer to allow for field measu...

journal_title：Journal of biomechanics

authors： Drazan JF,Hullfish TJ,Baxter JR

更新日期：2020-10-09 00:00:00

abstract：:Split-belt treadmills (SBTM) contain force plates under each belt that measure ground reaction force (GRF). Initial contact (IC) detection for each gait cycle obtained from the GRF is used for calculating temporal gait parameters (e.g., gait variability, step time, stride time). Occasionally, the participant steps wit...

journal_title：Journal of biomechanics

authors： Ben-Gal O,Benady A,Zadik S,Doniger GM,Schnaider Beeri M,Plotnik M

更新日期：2020-09-18 00:00:00

abstract：:The contact nature of American football has made head acceleration exposure a concern. We aimed to quantify the head kinematics associated with direct helmet contact and inertial head loading events in collegiate-level American football. A cohort of collegiate-level players were equipped with instrumented mouthguards ...

journal_title：Journal of biomechanics

authors： Tierney GJ,Kuo C,Wu L,Weaving D,Camarillo D

更新日期：2020-09-18 00:00:00

abstract：:Despite significant evidence regarding the increased risk of cartilage degeneration due to traumatic injuries to joints, there is still a lack of understanding of the mechanisms underlying osteoarthritis development following a joint injury. Injuries in knee cartilage are often characterized by lesions or tears. In ad...

journal_title：Journal of biomechanics

authors： Komeili A,Luqman S,Federico S,Herzog W

更新日期：2020-09-18 00:00:00

abstract：:Rapid force generation across submaximal levels has been evaluated with the rate of force development scaling factor (RFD-SF) in different isometric tasks, while such measurement was still not verified in dynamic tasks. Our study was designed to evaluate the feasibility of the RFD-SF in dynamic drop jump (DJ) task (RF...

journal_title：Journal of biomechanics

authors： Šarabon N,Knezevic MO,Mirkov MD,Smajla D

更新日期：2020-09-18 00:00:00

abstract：:Abnormal femoral version is a deformity in the angle between the femoral neck and the transcondylar axis of the knee. Both femoral anteversion and retroversion alter passive and active rotation of the hip and are associated with intra-articular or extra-articular impingement. However, little is known about the effect ...

journal_title：Journal of biomechanics

authors： Meyer AM,Thomas-Aitken HD,Brouillette MJ,Westermann RW,Goetz JE

更新日期：2020-08-26 00:00:00

abstract：:Knee joint sounds contain information on joint health, morphology and loading. These acoustic signals may be elicited by further, as yet unknown factors. By assessing potential elicitors and their relative contributions to the acoustic signal, we investigated the validity of vibroarthrographic assessments during diffe...

journal_title：Journal of biomechanics

authors： Kalo K,Niederer D,Stief F,Würzberger L,van Drongelen S,Meurer A,Vogt L

更新日期：2020-08-26 00:00:00

abstract：:The distal foot power equation is a simple yet powerful tool for estimating the power dissipation or generation within the foot even while modeling it as a rigid body. It was introduced over two decades ago, but has seen a resurgence of use in recent years. Nevertheless, the theoretical justification for this formula ...

journal_title：Journal of biomechanics

authors： Ashby BM

更新日期：2020-08-26 00:00:00

abstract：:Accurate knowledge of extraocular muscle (EOM) tension is important for the diagnosis of and surgical planning for strabismus, such as choosing which eye to operate or determining the amount of muscle displacement. Previous evaluations of passive EOM tension have relied extensively on the experience and skill of ophth...

journal_title：Journal of biomechanics

authors： Shin HJ,Lee SJ,Oh CS,Kang H

更新日期：2020-08-26 00:00:00

abstract：:It is well documented that most upper limb amputees utilize compensatory movement strategies to accomplish everyday tasks when using a prosthetic device and that musculoskeletal complaints (MSCs) are more common in this population. However, little information is available on how the loss of distal degrees of freedom (...

journal_title：Journal of biomechanics

authors： Reilly M,Kontson K

更新日期：2020-07-17 00:00:00

abstract：:The three-dimensional trajectory of the body's centre of mass (COM) is useful to determine a number of biomechanical outcomes in running research. Previous studies have used the COM to calculate measures such as overstriding, vertical stiffness, and vertical oscillation. The COM is traditionally computed using the seg...

journal_title：Journal of biomechanics

authors： Napier C,Jiang X,MacLean CL,Menon C,Hunt MA

更新日期：2020-07-17 00:00:00

abstract：:Understanding the mechanisms of instability can aid in reducing fall risk. As a sensitive measure of fall risk, the distance between the center of pressure (COP) and center of mass (COM) is currently assessed through discrete points assumed to represent physiological important fall mechanisms. However, it is unclear i...

journal_title：Journal of biomechanics

authors： Moudy SC,Patterson RM,Bugnariu N

更新日期：2020-07-17 00:00:00

abstract：:The aim of this study was to evaluate if there are sex differences in postures of upper arm, upper back, head and neck after muscle fatigue induced by a simulated work task, requiring upper arm movements performed above shoulder level. Nineteen females and 18 males were evaluated. Upper arm elevation, upper back, head...

journal_title：Journal of biomechanics

authors： Cid MM,Côté JN,Zancanaro LL,Oliveira AB

更新日期：2020-06-23 00:00:00

abstract：:The paper focuses on research that enables the relationship between food and selected mechanical parameters do be determined. The main aim of the study was to designate, depending on the food: (1) the work of a single muscle (i.e. masseter, medial pterygoid, temporalis), and (2) the energy balance of mandibular elevat...

journal_title：Journal of biomechanics

authors： Stróżyk P,Jacek B

更新日期：2020-06-09 00:00:00

abstract：:Lower propulsive joint powers, particularly at the ankle, are often observed in older compared to young adults. Interventions to increase joint powers often require labs with motion capture and force treadmill technology. Translating these interventions out of the lab requires identifying portable measures that track ...

journal_title：Journal of biomechanics

authors： Hafer JF,Zernicke RF

更新日期：2020-06-09 00:00:00

abstract：:Postural impairment due to neuro-degenerative disorders such as Parkinson's Disease (PD) leads to restricted gait patterns, fall-related injuries, decreased mobility, and loss of functional independence. Though several clinical and posturographic studies have attempted to reveal the complex pathophysiology involved in...

journal_title：Journal of biomechanics

authors： Dash R,Shah VV,Palanthandalam-Madapusi HJ

更新日期：2020-05-22 00:00:00

abstract：:Acute subdural hematoma (ASDH) in the elderly is currently a matter of concern due to the growing number of the aging population and their higher incident rate compared to the younger adults. Computational head models that can replicate this age-related injury pattern are valuable tools to help addressing this concern...

journal_title：Journal of biomechanics

authors： Zhou Z,Li X,Kleiven S

更新日期：2020-05-22 00:00:00

abstract：:The analysis of in-field biomechanics data typically requires the identification of foot contact. Existing techniques to identify foot contact using accelerometers offer a viable option for identifying foot contact in the field. However, these techniques often require the placement of additional accelerometers or the ...

journal_title：Journal of biomechanics

authors： Aubol KG,Milner CE

更新日期：2020-05-22 00:00:00