Abstract:
BACKGROUND:Children with static encephalopathy often walk with excessive knee and hip flexion throughout the gait cycle. This crouch gait pattern can be debilitating. These children may undergo hamstring-lengthening procedures to correct this crouch gait. Some improve, while others remain in crouch gait or go into knee hyperextension postoperatively, which can ultimately be debilitating. RESEARCH QUESTION:Hamstring muscle-tendon length models are frequently used as indicators when making recommendations for or against hamstring lengthening procedures. According to the literature, most clinicians use the length of the hamstring complex at the initial contact phase of the gait cycle as the primary deciding factor. We hypothesize that the length of this muscle-tendon complex at the midstance phase of the gait cycle is a more stringent criteria for lengthening procedures. METHODS:A simplified hamstring length model was applied retrospectively to the pre and postoperative three dimensional gait analysis kinematics of 152 subjects to assess preoperative surgical indications and postoperative outcomes. RESULTS:Of the limbs with short hamstrings at initial contact preoperatively, 15% went into knee hyperextension following hamstring lengthening procedures. Cases of hyperextension were even higher (19%) if the hamstrings were also normal to long at midstance. If the hamstrings were short at midstance, only 6 % went into hyperextension. Increasing the criteria to short hamstrings at initial contact and midstance reduced the number of limbs with hyperextension to 0%. SIGNIFICANCE:It appears that the length of the hamstrings at midstance is an additional predictor of the risk of post-op knee hyperextension from hamstring lengthening procedures, than utilizing the length at initial contact alone. Even though short hamstrings at midstance may be an additional predictor of positive outcomes, it also results in a more conservative approach to surgery by excluding almost half of the patients with short hamstrings at initial contact only, but who may benefit from surgery.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Augsburger S,White H,Iwinski Hdoi
10.1016/j.gaitpost.2020.05.036subject
Has Abstractpub_date
2020-07-01 00:00:00pages
26-30eissn
0966-6362issn
1879-2219pii
S0966-6362(20)30186-7journal_volume
80pub_type
杂志文章相关文献
GAIT & POSTURE文献大全abstract::Following anterior cruciate ligament (ACL) rupture, reconstructive surgery (ALCR) is often performed to mechanically stabilise the knee, however functional deficits often persist long after surgery. Impaired single-limb standing balance has been observed in the ACLR limb compared to healthy individuals. However, it re...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.11.013
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:Manual annotation of initial contact (IC) and end contact (EC) is a time consuming process. There are currently no robust techniques available to automate this process for Parkinson's disease (PD) patients with freezing of gait (FOG). OBJECTIVE:To determine the validity of a data-driven approach for automat...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.05.026
更新日期:2020-07-01 00:00:00
abstract::The altered gait patterns of adults with Down syndrome (DS) may contribute to their higher net metabolic rate (net-MR) during walking than adults without DS, leading to mobility limitations. This study examined the extent to which gait characteristics explain differences in net-MR during walking between adults with an...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2014.10.004
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:The paper-grip-test (PGT) involves pulling a small card from underneath the participant's foot while asking them to grip with their hallux. The PGT is shown to be effective in detecting foot muscle-weakening but its outcome is operator-dependent. To overcome this limitation, an enhanced PGT (EPGT) is propose...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.07.011
更新日期:2020-09-01 00:00:00
abstract::The purpose of this study was to compare kinematic gait parameters measured with an instrumented walkway system (GAITRite(R)) and a video-based system (peak performance motus 3.1(R)). Subjects walked across a GAITRite mat with embedded pressure sensors. Reflective markers were attached to subjects' shoes and video cap...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(00)00062-x
更新日期:2000-10-01 00:00:00
abstract::Two common impairments in patients after stroke are loss of balance control and fatigue. We propose that both could be inter-related. The purpose of this study was to investigate the metabolic energy demand for balance control in patients after stroke during upright standing. Ten stroke patients and 12 able-bodied con...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.05.016
更新日期:2010-07-01 00:00:00
abstract::The abdominal muscles have an important role in control and movement of the lumbar spine and pelvis. Given there is new evidence of morphological and functional differences between distinct anatomical regions of the abdominal muscles, this study investigated whether there are regional differences in postural activity ...
journal_title:Gait & posture
pub_type: 临床试验,杂志文章
doi:10.1016/j.gaitpost.2004.09.012
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Foot equinus and leg length discrepancy (LLD) are common problems in hemiplegic cerebral palsy (hCP), both causing secondary deviations of pelvic motion during gait. It can therefore be assumed that the spinal deviations observed in hCP patients are secondary as a compensation for the position of...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.08.013
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Clinicians often use thirty-second-sit (chair)-to-stand (30CST), timed-up-and-go (TUG), and the five-times-sit-to-stand (5xSTS) since these outcome measures (OMs) are sensitive for strength, balance and mobility. RESEARCH QUESTION:The purpose of this study was to validate a custom smart phone application (A...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2019.07.251
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Among patients with Parkinson's disease (PD), gait is typically disturbed and less automatic. These gait changes are associated with impaired rhythmicity and increased prefrontal activation, presumably in an attempt to compensate for reduced automaticity. RESEARCH QUESTION:We investigated whether during tre...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.03.041
更新日期:2018-05-01 00:00:00
abstract::In many cases knee osteoarthritis leads to total knee replacement surgery (TKR) even if the lateral compartment is not involved. More recently, a bicompartmental knee replacement system (BKR) (Journey Deuce, Smith & Nephew Inc., Memphis, TN, USA) has been developed that only replaces the medial tibiofemoral and the pa...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2012.04.008
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Evidence of neuroplasticity after joint injury has suggested that individuals with chronic ankle instability (CAI) may have degraded movement when facing cognitive demand. To date, research into these effects have been limited to static balance models, and typically only incorporate a single type of cognitiv...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.03.019
更新日期:2020-06-01 00:00:00
abstract::Postural threat can induce conscious involvement in movement control. This internal focus has been implicated in compromising attentional processing efficiency during postural control, leading to behavioral adaptations that might increase the risk of falling in the elderly. It is suggested that electroencephalography ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.09.001
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:To determine the accuracy of clinicians' visual observations of gait disorders following traumatic brain injury (TBI). METHODS:30 ambulant participants (sample of convenience) receiving physiotherapy for mobility limitations following TBI and 25 age, height, weight and sex matched healthy unimpaired controls...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2008.11.005
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:Gait impairments in people with Parkinson's disease (PD) are accentuated in dual-task conditions. Most PD studies on dual-task gait have measured only straight line walking and treadmill gait. Gait alterations on irregular terrain are poorly understood. RESEARCH QUESTION:To what extent does walking on irreg...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.04.027
更新日期:2018-06-01 00:00:00
abstract:INTRODUCTION:Walking instability is a contributor to falls and other undesired changes in walking performance. We investigated the effect of split-belt treadmill based perturbations on dynamic stability. Furthermore, we examined the relationships for dynamic stability and symmetry during unperturbed and perturbed walki...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.03.006
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:The high energy cost of paraplegic walking using a reciprocating gait orthosis (RGO) is attributed to limited hip motion and excessive upper limb loading for support. To address the limitation, we designed the hip energy storage walking orthosis (HESWO) which uses a spring assembly on the pelvic shell to sto...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2017.05.022
更新日期:2017-09-01 00:00:00
abstract::Increased ankle muscle coactivation during gait has frequently been observed as an adaptation strategy to compensate for postural instability in adults after stroke. However, it remains unclear whether the muscle coactivation pattern increases or decreases after balance training. The aim of this study was to investiga...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.01.006
更新日期:2016-03-01 00:00:00
abstract::Lateral leg movement is accompanied by opposite movements of the supporting leg and trunk segments. This kinematic synergy shifts the center of mass (CM) towards the supporting foot and stabilizes its final position, while the leg movement is being performed. The aim of the present study was to provide insight in the ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2005.07.007
更新日期:2006-08-01 00:00:00
abstract::This investigation compared muscle activities and heart rate (HR) responses while subjects walked backward or forward in water, with and without a water current. Ten healthy males (23.5+/-1.4 years) volunteered for the study. Surface electromyography (EMG) was used to evaluate muscle activities while the subjects walk...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2006.03.013
更新日期:2007-02-01 00:00:00
abstract:INTRODUCTION:In this paper, the Gait Deviation Index (GDI) was used as a convenient method to evaluate pre-to-postoperative gait pattern changes after total hip arthroplasty and identify factors which might be predictive of outcome. DESIGN:Three-dimensional gait data from a randomized clinical trial was used to determ...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2015.02.009
更新日期:2015-06-01 00:00:00
abstract::A method of using three tri-axial accelerometers for monitoring postural changes in sitting was introduced. Subjects were requested to perform forward trunk flexion and lateral bending. A motion analysis system and a three-dimensional rotation alignment device were used to verify the measurements of the accelerometers...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2007.03.001
更新日期:2008-01-01 00:00:00
abstract::In unilateral transtibial amputees maintenance of standing balance is compromised due to the lack of active ankle control in the prosthetic limb. The purpose of this study is to disentangle the contribution of the prosthetic and sound limb to balance control following waist-pull perturbations. We compared the contribu...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2012.03.010
更新日期:2012-06-01 00:00:00
abstract::Stiff-knee gait (SKG) in hemiplegic patients is often due to an inappropriate activity of the quadriceps femoris. However, there are no studies in literature addressing the vastus intermedius (VI) involvement in SKG. In this study, VI activity was analyzed in a sample of 46 chronic stroke patients with SKG, during spo...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.07.002
更新日期:2018-02-01 00:00:00
abstract::There is limited understanding of potential mechanisms underpinning postural control deficits in people with neck pain. This study examined several characteristics that might explain impaired postural stability in a group of older adults with neck pain, and compared the results in this cohort with that of asymptomatic...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.11.016
更新日期:2018-02-01 00:00:00
abstract::This study sought to (a) determine the domains of clinical balance impairments associated with Huntington's disease (HD), and (b) evaluate associations between balance test scores and other disease-related impairments. Eighteen subjects with genetically definite HD and 17 age-matched control subjects were evaluated on...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.02.018
更新日期:2015-03-01 00:00:00
abstract::The aim of this study was to analyze the changes in the standing center of pressure (COP) in a hemiplegic adult population at the beginning and the end of in-patient rehabilitation. The trajectory of the COP was recorded on a force platform and was analyzed in terms of the frequency spectra of the center of gravity (C...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2004.04.011
更新日期:2005-06-01 00:00:00
abstract::The effect of widely differing but normal passive ankle flexibility on function was investigated by using able-bodied males selected from the upper and lower tails of a group normally distributed for passive dorsiflexion (DF) flexibility. Ankle, knee and hip kinematics, and kinetics were quantified during stair descen...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(02)00196-0
更新日期:2003-10-01 00:00:00
abstract::People with Parkinson's disease (PD) typically demonstrate impaired anticipatory postural adjustments (APAs) that shift the body center of mass forward (imbalance) and over the stance leg (unloading) prior to gait initiation. APAs are known to be smallest when people with PD are in their OFF-medication state compared ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.10.017
更新日期:2017-01-01 00:00:00
abstract::We investigated the individual muscle contribution to arm motion to better understand the complex muscular coordination underlying three-dimensional (3D) reaching tasks of the upper limb (UL). The individual contributions of biceps, triceps, deltoid anterior, medius, posterior and pectoralis major to the control of sp...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2011.11.028
更新日期:2012-04-01 00:00:00