The purpose of this study was to examine the real-time intersession and interrater reliability functional movement screen (FMS). overall consisted 19 volunteer civilians (12 male, 7 female). 12 men women, whereas 10 6 women participated in test session. Two raters (A B) were involved aspect study. FMS includes tests: deep squat (DS), hurdle step (HS), in-line lunge (IL), shoulder mobility (SM), active straight leg raise (ASLR), trunk stability push-up (TSPU), rotary (RS). Researchers...

Abstract Purpose To measure the elastic properties of vastus lateralis (VL), medialis (VM), and sartorius (Sr) muscles using magnetic resonance elastography (MRE). Materials Methods obtain a normative database aforementioned muscles, oblique scan directions were prescribed passing through each muscle. Shear waves induced into pneumatic mechanical drivers at 90 120 Hz, respectively. These attached to distal end right thigh with knee flexed 30°. The foot was placed in footplate containing...

Context: Altered neuromuscular control strategies during fatigue probably contribute to the increased incidence of non-contact anterior cruciate ligament injuries in female athletes. Objective: To determine biomechanical differences between 2 protocols (slow linear oxidative protocol [SLO-FP] and functional agility short-term [FAST-FP]) when performing a running-stop-jump task. Design: Controlled laboratory study. Setting: Laboratory. Patients or Other Participants: A convenience sample 15...

Abstract Purpose To measure the stiffness of vastus medialis (VM) in hyperthyroid patients before and after treatment. Materials Methods A total five healthy euthyroid were tested using magnetic resonance elastography (MRE), which involves induction shear waves thigh muscles a pneumatic driver at 90 Hz. Results Among pretreatment cohort lower was found when muscle relaxed (2.11 ± 0.61 kPa) compared following treatment hyperthyroidism (5.52 1.52 kPa), accompanied by an improvement contractile...

Abstract Patients with subtalar joint instability are often diagnosed ankle instability. Only after a prolonged period of time in which patient does not improve treatment for is considered. To develop clinically relevant method to diagnose instability, the kinematics simulated unstable were examined. A 6 degree‐of‐freedom positioning and loading device was developed. Plantarflexion/dorsiflexion, inversion/eversion, internal/external rotation applied individually or as coupled motions along...

The moment, a force applied at distance, is responsible for movement and balance. A key component of the moment arm. arms nine muscles surrounding ankle complex during motion in three planes, were studied.Five cadaveric feet mounted testing device that created moments sagittal, coronal transverse planes. Axial tendon loads as foot was passively moved these Tendon excursions bone kinematics monitored. arm calculated using excursion method averaged across all specimens.The largest average...

Context: Instruction can be used to alter the biomechanical movement patterns associated with anterior cruciate ligament (ACL) injuries. Objective: To determine effects of instruction through combination (self and expert) feedback or self-feedback on lower extremity kinematics during box–drop-jump task, running–stop-jump sidestep-cutting maneuver over time in college-aged female athletes. Design: Randomized controlled clinical trial. Setting: Laboratory. Patients Other Participants:...

Abstract Magnetic resonance elastography (MRE), a phase contrast MRI technique, images the propagation of applied mechanical waves in tissue, allowing shear stiffness to be quantified vivo. This MRE technique has been validated with static compression tests. Dynamic analysis (DMA) may more appropriate comparison because it directly measures modulus dynamically, while tests convert measured elastic an assumed Poisson ratio. study compared estimated various inversion algorithms (i.e., manual...

The improvement of ecological validity laboratory research studies has recently come to the forefront technology with virtual reality scenarios. purpose this study was assess differences between unanticipated and anticipated lower extremity biomechanics while performing a sidestep cutting task. A visualization software developed for purpose, which would recreate soccer game situation use in setting. Thirteen participants volunteered study. Lower biomechanical data were collected VICON motion...

Insufficient hip and thigh strength may increase an athlete's susceptibility to injury. However, screening for deficits using isometric isokinetic instrumentation not be practical in all clinical scenarios.To determine if functional performance tests are valid indicators of strength.Descriptive laboratory study.Research laboratory.Sixty-two recreationally athletic men (n = 30, age 21.07 years, height 173.84 cm, mass 81.47 kg) women 32, 21.03 168.77 68.22 participants were recruited.During...

Previous studies have shown conflicting information regarding leg dominance as an etiological factor for the risk of anterior cruciate ligament (ACL) injuries. It remains unclear if lower extremity neuromechanical limb asymmetries exist in experienced athletes. The purpose this study was to evaluate effects female collegiate soccer athletes during unanticipated side-step cutting task. Twenty players completed task, using their dominant and non-dominant legs. Kinematic kinetic data were...

Abstract Purpose To demonstrate the feasibility of 1D MR elastography (MRE) to rapidly assess skeletal muscle stiffness in vivo. Materials and Methods Shear waves were induced vastus medialis (VM) using a pneumatic driver at 90 Hz 2D MRE data collected. Spatially selective excitations used produce projections oriented along direction propagating muscle. Data collected with thigh muscles relaxed contracted 20% maximum voluntary contraction (MVC) knee flexed 30°. Results The measured rest was...

Abstract Due to mandates for the inclusion of engineering and computer science standards K-6 schools nationwide, there is a need understand how teacher educators can help develop preservice teachers’ (PSTs’) teaching self-efficacy in these areas. To provide experience learning coding, PSTs an instructional technology course were partnered with undergraduate students electromechanical systems teach robotics lessons fifth graders (10–11 year olds) over Zoom. A multi-case study approach...

Common image-based diagnostic techniques used to detect ankle ligament injuries or the effects of those (e.g., mechanical instability) include magnetic resonance imaging (MRI) and stress radiography. Each these has limitations. The interpretation results obtained through radiography, a two-dimensional technique, is highly controversial. MRI can facilitate visualization soft tissue, but three-dimensional full length ligaments detecting partial damage difficult. This work part long-term study...

Anne M. P. Michalek*ac, Silvana Watsonac, Ivan Ashbc, Stacie Ringlebbc & Anastasia Raymeraca *Department of Communication Disorders Special Education, Old Dominion University, Norfolk, Virginia, USAb Department Psychology, USAc Mechanical Aerospace Engineering, USA

Subtalar instability is associated with up to 80% of patients presenting chronic ankle but often not considered in the diagnosis or treatment. Operative procedures repair have shown good clinical results, effects these reconstruction on isolated subtalar are well understood. The goal this study was investigate effect Gould modification Broström procedure and a new tenodesis joint kinematics after simulating injury.Kinematic data were collected 7 cadaveric ankles during inversion through...

This study explores undergraduate engineering and education students’ perspectives on their interdisciplinary teams throughout the rapid transition to online learning instruction from a face-to-face virtual format. In this qualitative study, reflections focus groups three collaborations were analyzed using lens of Social Cognitive Theory. COVID-19 created dramatic change in environment such that most immediate direct impact experiences was environmental aspects Bandura’s triadic reciprocal...

Abstract Subtalar joint instability is hypothesized to occur after injuries the calcaneofibular ligament (CFL) in isolation or combination with cervical and talocalcaneal interosseous ligaments. A common treatment for hindfoot application of an ankle brace. However, ability brace promote subtalar stability not well established. We assessed kinematics joint, ankle, presence isolated instability, investigated effect bracing a CFL deficient foot total rupture intrinsic ligaments, evaluated how...

The aim of this study was to determine the effects hamstrings fatigue on lower extremity joint coordination variability during a sidestep cutting maneuver. Twenty female recreational athletes performed five successful trials task pre- and postfatigue. Each participant completed an isolated protocol consisting isokinetic maximum effort knee flexion passive extension contractions. Vector coding used examine hip couplings (consisting various planar motions) impact weight acceptance phases cut...