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Children with Autism Spectrum Disorder (ASD) exhibit different movement patterns relative to their peers with typical development (TD). Few distinguishable patterns have been determined, although some have been hypothesized. The current study analysed whether coordination variability (vCRP) of the l...
This research sought to determine the minimum number of walking strides required to reliably measure single-task (ST) gait, dual-task DT) gait as well as ST-DT difference scores in older adult fallers and non-fallers. We found that for almost all metrics the minimum number of strides required to acc...
The Low Flexion (LF) test is a clinical test to quantify glenohumeral joint (GHJ) posterior capsule tightness (PCT). However, there is a concern that the lack of scapula stabilization during the measurement may affect the test. This study analyzed scapula positioning during the application of the LF...
Quadriceps muscular strength weakness is commonly observed in individuals following ACL injury (ACLI). However, it is inconclusive whether force steadiness is worse in ACLI individuals. Twenty-four subjects with ACLI (54.9 days prior to testing) and 25 control subjects (CONTROL) completed the maxima...
Basketball is a sport that requires a high level of cognitive and mental effort. This mental effort might affect to technical skills such as shooting. Shooting depends on biomechanical factors that determine the path, accuracy, and performance. There is evidence that mental load and fatigue may caus...
The longitudinal changes in foot pressure asymmetry for n=30 children with unilateral clubfoot was measured. Asymmetry for foot size and contact area were measured. Asymmetry between the unaffected and affected sides increased in all parameters. Significant increases in asymmetry were seen for the f...
A recent survey in India reported a point prevalence of 43.5% low back pain among dancers amongst which a large majority were Indian classical dancers namely, Bharatanatyam. In an attempt to explore the source of low back pain, 7 Bharatanatyam dancers presenting with low back pain during walking wer...
Osteoarthritis (OA) is prevalent, debilitating and costly condition that affects many joints in humans. OA onset can occur post joint trauma, e.g. anterior cruciate ligament rupture and reconstruction (ACLR), or from joint abnormality, e.g. femoroacetabular impingement (FAI). Once OA is established ...
Differences in head accelerations between blunt impacts performed on a linear impactor and monorail were compared across impact locations and velocities. Difference scores varied by impact location, but seem to be highly specific and non-generalizable across locations and velocities.
We quantified jumping biomechanics and ultrasound imaging in collegiate basketball players to explore injury screening tools in jumping athletes. Our current results support use of shear wave ultrasound in conjunction with 3D jumping biomechanics compared to convention ultrasound, MRI, and survey sc...
The relationship between coordination variability and running related overuse injuries has not been examined prospectively. Understanding this relationship will aid in identifying the loading effects of joint coordination on mechanically crucial musculoskeletal sites. Vector coding was used to deter...
Walking is the most basic exercise of physical activity. Each person has different walking types, but additional time and equipment are required to distinguish them. In order to solve this problem, we intend to develop an index that can easily distinguish various gait types by using center of pressu...
We have conducted experimental study (n=1) to investigate the effect of different shoes on foot bone kinematics. Kinematics were acquired using fluoroscopy while 3D geometry of the foot was recorded with a CT. The participant had to move from a one-legged stance into a tip-toe stance. Afterwards the...
Patellofemoral (PF) pain is a common running injury where PF joint stress has been implicated. Using a musculoskeletal model, we examined how PF joint stress is influenced in running with and without 9 kg of added load at a set running speed. PF joint stress increased 10% which was attributed to a 1...
Knee osteoarthritis (KOA) is a major cause of pain and disability in the elderly population with many daily living activities being difficult to perform. In the present study, we describe and evaluate an inertial motion capture (IMC) driven musculoskeletal model to estimate the knee adduction moment...
Chronic ankle instability (CAI) has been associated with kinematic and kinetic deficits during walking. However, few studies simultaneously investigated these two modalities during walking, which is necessary to better understand the deficits associated with CAI. The objective of this study was to q...
The normative description of sit-to-stand (STS) enables biomechanists to objectively analyze this motion and to compare healthy and pathological patterns of movement against a common definition. When the participants in our study performed STS, they demonstrated the phases of STS but their timing di...
An understanding of deep hip muscle function in femoroacetabular impingement syndrome (FAIS) is needed to inform targeted treatment programs. This exploratory study compared activation patterns of the deep and superficial hip muscles during a step ascent task in individuals with FAIS (subgrouped by ...
Obesity leads to a plethora of health risks and in addition, the excess adipose tissue in obese individuals negatively affects skeletal muscle by altering biomechanics and muscle activation patterns. This study was an exploratory study used to determine if muscle activity and lower extremity joint k...
Maintaining stability in the presence of unexpected external perturbations is essential during walking. Systemic resilience, the capacity to timely recover from perturbations, is therefore achieved by suitable foot placement facilitating correction to the base of support relative to the body center ...
Arterial wall motion was analysed in the atherosclerotic plaque models to study the effect of wall tissue viscoelasticity and lipid core stiffness on wall displacement waveforms. A typical slice of the patient’s IVUS data was modelled, and the anisotropic and viscoelastic behaviour of tissue was c...
We determined how use of a pediatric prosthetic foot affects 3D hip kinematics in toddlers with transtibial amputations (TTAs). We compared 3D hip joint kinematics in the affected leg (AL) of toddlers with a TTA using a standard prosthetic foot to their unaffected leg (UL) and to both legs of non-am...
Pre-impact fall detection is extremely important to prevent fractures especially for the elderly. Both fall experiments on 40 young male volunteers as well as dynamic simulations with the human model (HARB) were performed to evaluate pre-impact fall detection algorithm, based on accelerations, angul...
People with dementia have impairments in gait that are associated with an increased risk of falls. The aim of this study was to investigate the relationship between gait features extracted from repeated, frequent gait assessments and future falls in older people with dementia. We found that gait ins...
Current clinical criteria for identifying bone cancer patients at high risk of fracture are not solid and comprehensive, which in many occasions result in unnecessary prophylactic stabilization. The goal of this study was to develop a validated biomechanical tool to assess bone strength, as the key ...
The study successfully developed and validated an automated identification of autistic postural control patterns using a machine learning approach. In general, simpler machine learning algorithms displayed higher accuracy rates compared to more complicated ones. The use of machine learning may provi...
In the aerobics, bouncing is a basic and essential movement for superior competition performance. Aerobic gymnastics in competition are required bouncing and jumping under rhythm restriction in music. It is so important to clear how athletes operate their limbs smoothly and effectively under limited...
This study demonstrates an increased contribution of proximal joints to lower extremity dynamics following exertion.
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