Abstract:
:The drop vertical jump (DVJ) task is commonly used to assess biomechanical performance measures that are associated with ACL injury risk in athletes. Previous investigations have solely assessed the first landing phase. We examined the first and second landings of a DVJ for differences in the magnitude of vertical ground reaction force (vGRF) and position of center of mass (CoM). A cohort of 239 adolescent female basketball athletes completed a series of DVJ tasks from an initial box height of 31 cm. Dual force platforms and a three dimensional motion capture system recorded force and positional data for each trial. There was no difference in peak vGRF between landings (p=0.445), but side-to-side differences increased from the first to second landing (p=0.007). Participants demonstrated a lower minimum CoM during stance in the first landing than the second landing (p<0.001). The results have important implications for the future assessment of ACL injury risk behaviors in adolescent female athletes. Greater side-to-side asymmetry in vGRF and higher CoM during impact indicate the second landing of a DVJ may exhibit greater perturbation and better represent in-game mechanics associated with ACL injury risk.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
Bates NA,Ford KR,Myer GD,Hewett TEdoi
10.1016/j.jbiomech.2013.02.024subject
Has Abstractpub_date
2013-04-26 00:00:00pages
1237-41issue
7eissn
0021-9290issn
1873-2380pii
S0021-9290(13)00104-8journal_volume
46pub_type
临床试验,杂志文章abstract::Bone is a dynamic tissue which, through the process of bone remodeling in the mature skeleton, renews itself during normal function and adapts to mechanical loads. It is, therefore, important to understand the effect of remodeling on the mechanical function of bone, as well as the effect of the inherent time lag in th...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/s0021-9290(00)00221-9
更新日期:2001-03-01 00:00:00
abstract::Many analytical biomechanics methods require extensive three-dimensional descriptions of anatomical geometry. In particular, researchers requiring the three-dimensional coordinates of specific boney landmarks (e.g. tendon and ligament attachments) are often forced to extrapolate such measurements from an experimental ...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/0021-9290(82)90249-4
更新日期:1982-01-01 00:00:00
abstract::A challenging aspect of subject specific musculoskeletal modeling is the estimation of muscle parameters, especially optimal fiber length and tendon slack length. In this study, the method for scaling musculotendon parameters published by Winby et al. (2008), J. Biomech. 41, 1682-1688, has been reformulated, generaliz...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2015.11.006
更新日期:2016-01-25 00:00:00
abstract::Specific spinal postures and physical activities have been linked to low back pain (LBP) but previous reviews have produced contrasting outcomes. This umbrella review examined (1) what relationship, if any, is evident between specific spinal postures or physical activities and LBP; (2) the quality of existing systemat...
journal_title:Journal of biomechanics
pub_type: 杂志文章,评审
doi:10.1016/j.jbiomech.2019.08.006
更新日期:2020-03-26 00:00:00
abstract::In presence of aortic stenosis, a jet is produced downstream of the aortic valve annulus during systole. The vena contracta corresponds to the location where the cross-sectional area of the flow jet is minimal. The maximal transvalvular pressure gradient (TPG(max)) is the difference between the static pressure in the ...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2005.10.013
更新日期:2006-01-01 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
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2020.109980
更新日期:2020-09-18 00:00:00
abstract::Studying mechanics of the muscles spanning multiple joints provides insights into intersegmental dynamics and movement coordination. Multiarticular muscles are thought to function at "near-isometric" lengths to transfer mechanical energy between the adjacent body segments. Flexor hallucis longus (FHL) is a multiarticu...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2008.03.040
更新日期:2008-01-01 00:00:00
abstract::Proper cup alignment is crucial in total hip arthroplasty for reducing impingement risks, dislocations and wear. The Lewinnek "safe zone" is often used in clinical routine. This safe zone does not consider functional aspects and dislocation can occur even when the cup is oriented within the safe zone. Functional safe ...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2018.10.020
更新日期:2019-01-03 00:00:00
abstract::Hamstring muscle strain injury is one of the most commonly seen injuries in sports such as track and field, soccer, football, and rugby. The purpose of this study was to advance our understanding of the mechanisms of hamstring muscle strain injuries during over ground sprinting by investigating hamstring muscle-tendon...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2008.09.005
更新日期:2008-11-14 00:00:00
abstract::In a variety of applications, inertial sensors are used to estimate spatial parameters by double integrating over time their coordinate acceleration components. In human movement applications, the drift inherent to the accelerometer signals is often reduced by exploiting the cyclical nature of gait and under the hypot...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2011.04.035
更新日期:2011-07-07 00:00:00
abstract::Vessel geometry for numerical analysis is generally obtained by computed tomography (CT) or magnetic resonance imaging (MRI) and intravascular ultrasound (IVUS). Most medical imaging is obtained from patients for hemodynamic analysis due to the properties of vascular disease and the difficulties in angiography. To pre...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2012.04.003
更新日期:2012-06-01 00:00:00
abstract::Joint moments are commonly used to characterize gait. Factors like height and weight influence these moments. This study determined which of two commonly used normalization methods, body mass or body weight times height, most reduced the effects of height and weight on peak hip, knee, and ankle external moments during...
journal_title:Journal of biomechanics
pub_type: 临床试验,杂志文章
doi:10.1016/s0021-9290(02)00433-5
更新日期:2003-04-01 00:00:00
abstract::In this study, we proposed a novel approach to assess the energy dissipation during the post-yield deformation of bone. Based on the stress-strain behavior in an incremental and cyclic loading-unloading-reloading scheme in uniaxial tension, we partitioned the post-yield energy dissipation of bone into three distinct p...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2006.02.002
更新日期:2007-01-01 00:00:00
abstract::We studied stress fiber orientation under a wide range of uniaxial cyclic deformations. We devised and validated a hypothesis consisting of two parts, as follows: (1) a stress fiber aligns to avoid a mechanical stimulus in the fiber direction under cyclic deformation. This means that, among all allowable directions, a...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/s0021-9290(00)00114-7
更新日期:2000-11-01 00:00:00
abstract::Due to increased atherosclerosis-caused mortality, identification of its genesis and development is of great importance. Although, key factors of the origin of the disease is still unknown, it is widely believed that cholesterol particle penetration and accumulation in arterial wall is mainly responsible for further w...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2017.11.029
更新日期:2018-01-23 00:00:00
abstract::We evaluated whether the use of cartilage thickness measurement would improve the ability of the arthroscopic indentation technique to estimate the intrinsic stiffness of articular cartilage. First, cartilage thickness and ultrasound reflection from the surface of bovine humeral head were registered in situ using a hi...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/s0021-9290(00)00189-5
更新日期:2001-02-01 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
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2020.110035
更新日期:2020-11-09 00:00:00
abstract::Continuum-level finite element (FE) models became standard computational tools for the evaluation of bone mechanical behavior from in vivo computed tomography scans. Such scans do not account for the anisotropy of the bone. Instead, local mechanical properties in the continuum-level FE models are assumed isotropic and...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2005.10.027
更新日期:2006-01-01 00:00:00
abstract::The multi-signal mechanical environment mammalian cells experience is often unaccounted for in current mechanical stimulation studies. To address this we developed a novel technique to induce dual integrated force inputs, uniaxial stretch and fluid shear stress and present here for the first time a vector logic-gate f...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2014.12.047
更新日期:2015-02-26 00:00:00
abstract::Upper extremity musculoskeletal disorders represent an important health issue across all industry sectors; as such, the need exists to develop models of the hand that provide comprehensive biomechanics during occupational tasks. Previous optical motion capture studies used a single marker on the dorsal aspect of finge...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2011.04.003
更新日期:2011-06-03 00:00:00
abstract::A computational model of adaptive bone remodelling is formulated as an optimization problem of instantaneous changes in microstructure that minimize a functional describing the structure quality rate. Microstructure is locally described by a set of scalar geometric parameters. Macroscopic (continuum) elastic propertie...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2009.09.045
更新日期:2010-02-10 00:00:00
abstract::Non-invasive estimation of arterial blood volume flow (BVF) has become a central issue in assessment of cardiovascular risk. Poiseuille and Womersley approaches are commonly used to assess the BVF from centerline velocity, but both methods neglect the influence of curvature. Based on the assumption that the velocity i...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2009.04.032
更新日期:2009-08-07 00:00:00
abstract::The objective of this study was to examine the use of the continuous wavelet transform (CWT) on surface electromyographic (sEMG) signals acquired from the lower extremity muscles during gait in children with typical development (TD) and cerebral palsy (CP). This was done to explore the possibility of developing a quan...
journal_title:Journal of biomechanics
pub_type: 临床试验,杂志文章
doi:10.1016/j.jbiomech.2004.07.002
更新日期:2005-06-01 00:00:00
abstract::The purpose of the present study was to investigate the effects of mechanical strain, anisotropy, and tissue region on electrical conductivity and ion diffusivity in meniscus fibrocartilage. A one-dimensional, 4-wire conductivity experiment was employed to measure the electrical conductivity in porcine meniscus tissue...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2016.06.011
更新日期:2016-09-06 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
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2020.110116
更新日期:2021-01-22 00:00:00
abstract::A biomechanical model of the human thorax was constructed to investigate how asymmetric growth of the thorax might initiate spinal lateral curvature and axial rotation as seen in scoliosis deformities. Geometric data specifying nodal points of the model were taken from stereo-radiographs of an adolescent subject. An i...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/0021-9290(90)90051-4
更新日期:1990-01-01 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
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2020.109976
更新日期:2020-10-09 00:00:00
abstract::The reliability of joint rotation measurements is an issue of major interest, especially in clinical applications. The effect of instrumental errors and soft tissue artifacts on the variability of human motion measures is well known, but the influence of the representation of joint motion has not yet been studied. The...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2015.12.045
更新日期:2016-02-08 00:00:00
abstract::Interstitial fluid pressurization, a consequence of a biphasic tissue structure, is essential to the load bearing and lubrication properties of articular cartilage. Focal tissue degradation may interfere with this protective mechanism, eventually leading to gross degeneration and osteoarthritis. Our long-term goal is ...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2011.12.019
更新日期:2012-04-05 00:00:00
abstract::Hemodynamics factors and biomechanical forces play key roles in atherogenesis, plaque development and final rupture. In this paper, we investigated the flow field and stress field for different degrees of stenoses under physiological conditions. Disease is modelled as axisymmetric cosine shape stenoses with varying di...
journal_title:Journal of biomechanics
pub_type: 杂志文章
doi:10.1016/j.jbiomech.2007.06.023
更新日期:2007-01-01 00:00:00