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de Godoy José Maria Pereira - - 2010
The aim of this work was to dynamically study pressure variations exerted by elastic compression stockings during walking. While study participants walked, the pressure variations at the interface between elastic stockings and the skin were measured dynamically. Three healthy individuals wearing 10/20 and 20/30 elastic compression stockings manufactured by Sigvaris((R)) ...
Miller Adam L - - 2010
A common plantar pressure analysis technique requires dividing the pressure distribution into regions based on key landmarks of the foot. Typically, this is done using visual inspection of the footprint and is subject to error when there is abnormal foot contact. A novel, robust method of synchronizing motion capture and ...
Bedi Asheesh - - 2010
BACKGROUND: The menisci are integral to normal knee function. The purpose of this study was to measure the contact pressures transmitted to the medial tibial plateau under physiological loads as a function of the percentage of the meniscus involved by the radial tear or repair. Our hypotheses were that (1) ...
Mähönen Tuuli Anna - - 2010
The aim of the present study was to examine if perceived normative pressure (i.e., perception of the normative expectations of family and friends regarding one's intergroup attitudes) had a direct impact on majority youth's (N = 93) explicit attitudes and moderated the relationship between their implicit (measured with the ST-IAT) ...
Hastings Mary K MK Applied Kinesiology Laboratory Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA. - - 2010
Foot progression angle (FPA) and duration of foot medial column loading during walking were studied in individuals with diabetes mellitus (DM), peripheral neuropathy (PN), and a forefoot ulcer (DMPN), and in age-matched control subjects. FPA was calculated from EMED-ST P-2 pressure maps as the angle formed between the longitudinal axis ...
McIlraith A H - - 2010
A hydrostatic thrust bearing operating at a pressure of 130 MPa and with a coefficient of friction rising to 0.004 in 6 days is described. It consists of interleaved oil-coated Mylar and brass sheets, each 0.1 mm thick. At this pressure, the Mylar deforms to reveal a pool of lubricant ...
Shiomi T - - 2010
Physiological magnetic resonance imaging (MRI) under loading or knee malalignment conditions has not been thoroughly investigated. We assessed the influence of static loading and knee alignment on T2 (transverse relaxation time) mapping of the knee femoral cartilage of porcine knee joints using a non-metallic pressure device. Ten porcine knee joints ...
Mion Décio D - - 2010
Little is known about the prevalence of hypertension in São Paulo, Brazil. To identify the prevalence of self-reported hypertension in the city of São Paulo. There were 613 telephone interviews using directories of household land-lines. The sample was calculated with an estimated prevalence of hypertension in 20.0%. The prevalence of ...
Bentley J A - - 2011
Football players wear boots of varying cleat designs with some preferring the bladed cleats while others opting for the conventional studded cleats. The current study compares biomechanically the boots with differing cleat designs and their effect on feet, if any. Twenty-nine healthy male volunteers were recruited from amateur football teams. ...
Cerritelli Francesco - - 2011
Aim of the present study was to investigate the association between osteopathic treatment and hypertension. The design was a non-randomized trial including consecutive subjects affected by hypertension and vascular alterations, using pre-post differences in intima-media thickness, systolic and diastolic blood pressure as primary endpoints. Statistical analysis was based on univariate ...
Verlinden C - - 2010
Malrotation of the femoral component is a cause of patellofemoral maltracking after total knee arthroplasty. Its precise effect on the patellofemoral mechanics has not been well quantified. We have developed an in vitro method to measure the influence of patellar maltracking on contact. Maltracking was induced by progressively rotating the ...
Mazzocca Augustus D - - 2010
PURPOSE: The aim of this study was to assess the contact pressure, force, and area over time for 4 common arthroscopic rotator cuff repair techniques. METHODS: The transosseous-equivalent, single-row, triangle double-row, and suture-chain transosseous repair techniques were used to repair a full-thickness tear of the supraspinatus in 16 cadaveric shoulders. ...
Park Chang-Sin - - 2010
A micromachined pressure sensor based on an array of microswitches is presented. The pressure sensor consists of a silicon substrate that has a thin metal-deposited diaphragm and indium tin oxide (ITO)-based switch arrays patterned on a Pyrex glass. When pressure is applied to the thin diaphragm through a small tube, ...
Fukuda Tomiko T Fondren Orthopedic Group L.L.P., Pearland, TX 77584, USA. - - 2010
There is limited literature available to assess the impact of talar component rotation on total ankle contact biomechanics. Six male cadaveric below-knee specimens were implanted with Agility(R) total ankles. The sequence of talar rotation for each specimen was randomized between: Neutral, 7.5 degrees internal and 7.5 degrees external rotation. Contact ...
Lidtke Roy H - - 2010
BACKGROUND: We sought to determine whether symptomatic medial knee osteoarthritis is associated with aberrant loading across the foot during gait. METHODS: Twenty-five individuals with medial knee osteoarthritis were compared with 25 controls. Knee radiographs and Western Ontario and McMaster Universities Arthritis Index questionnaires were obtained. Participants walked barefoot over pressure ...
Hirasaki Eishi - - 2010
To better place the form and motion of the human foot in an evolutionary context, understanding how foot motions change when quadrupeds walk bipedally can be informative. For this purpose, we compared the pressures beneath the foot during bipedal and quadrupedal walking in Japanese macaques (Macaca fuscata). The pressure at ...
Kivell Tracy L - - 2010
Arboreal animals with prehensile hands must balance the complex demands of bone strength, grasping and manipulation. An informative example of this problem is that of the aye-aye (Daubentonia madagascariensis), a rare lemuriform primate that is unusual in having exceptionally long, gracile fingers specialized for foraging. In addition, they are among ...
Pattavilakom Ananthababu - - 2010
OBJECT: Sore throat, dysphagia, and dysphonia are very common after anterior cervical surgery; clinical studies show an incidence of up to 60% or more. Neural, mucosal, or muscular injuries during dissection or retraction are regularly discussed, but investigations are few. Retraction pressure causing ischemia might explain these complications. A new ...
Charles James - - 2010
Equinus is characterized by reduced dorsiflexion of the ankle joint, but there is a lack of consensus regarding criteria for definition and diagnosis. This review examines the literature relating to the definition, assessment, diagnosis, prevalence, and complications of equinus. Articles on equinus and assessment of ankle joint range of motion ...
Espinosa N - - 2010
BACKGROUND: A major cause of the limited longevity of total ankle replacements is premature polyethylene component wear, which can be induced by high joint contact pressures. We implemented a computational model to parametrically explore the hypothesis that intercomponent positioning deviating from the manufacturer's recommendations can result in pressure distributions that ...
Spence J David - - 2010
Resistant hypertension is a major opportunity for prevention of cardiovascular disease. Despite widespread dissemination of consensus guidelines, most patients are uncontrolled with approaches that assume that all patients are the same. Causes of resistant hypertension include 1) non-compliance 2) consumption of substances that aggravate hypertension (such as salt, alcohol, nonsteroidal ...
Pozzi Antonio - - 2010
To evaluate the effect of transection of the medial caudal menisco-tibial ligament on contact mechanics in a canine cadaveric model of cranial cruciate ligament (CCL) rupture and tibial plateau leveling osteotomy (TPLO). Ex vivo biomechanical study. Unpaired pelvic limbs (n=8) from 28-35 kg dogs. Cadaveric pelvic limbs with CCL-deficient stifles ...
Iriuchishima Takanori - - 2010
Although the literature has extensively discussed impingement after anterior cruciate ligament (ACL) reconstruction, the definition of impingement is vague, and impingement pressure has not been well investigated as a function of tunnel position. To determine the amount of impingement pressure between the ACL and posterior cruciate ligament (PCL) and between ...
Schmidt Hendrik - - 2010
A non-linear poroelastic finite element model of the lumbar spine was developed to investigate spinal response during daily dynamic physiological activities. Swelling was simulated by imposing a boundary pore pressure of 0.25 MPa at all external surfaces. Partial saturation of the disc was introduced to circumvent the negative pressures otherwise ...
Li Lu Hua - - 2010
Superhydrophobicity is highly desirable for numerous applications. Here, we report that a semierect but nonaligned boron nitride nanotube (BNNT) film showed superhydrophobicity with contact angle above 170 degrees and a small contact angle hysteresis. This superhydrophobicity was stable over a large range of drop sizes, and the measured critical transition ...
Fick James M - - 2010
Our research investigated the influence of degeneration on both the pore-pressure development and microstructural response of cartilage during indentation with a flat-porous-indenter. Experiments were conducted to link the mechanical and structural responses of normal and degenerate articular cartilage. We found that from the instant of loading the degenerate matrix generated ...
D'Août Kristiaan - - 2010
Fossilized footprints contain information about the dynamics of gait, but their interpretation is difficult, as they are the combined result of foot anatomy, gait dynamics, and substrate properties. We explore how footprints are generated in modern humans. Sixteen healthy subjects walked on a solid surface and in a layer of ...
Patel Biren A - - 2010
Habitually terrestrial monkeys adopt digitigrade hand postures at slow speeds to increase effective forelimb length and reduce distal limb joint moments. As these primates move faster, however, their hands transition to a more palmigrade posture, which is likely associated with the inability of wrist and hand joints to resist higher ...
Tonks Catherine A - - 2010
To determine the effect of suture tension on contact pressures in the lateral compartment of the stifle for the TightRope CCL((R)) (TR) and circumfabellar-tibial suture (LS) techniques. Ex vivo biomechanical study. Pelvic limbs (n=12) from dogs weighing 21-24 kg. A pressure sensor was used to record peak contact pressure (PCP) ...
Dessardo Nada Sindicić - - 2010
Idiopathic intracranial hypertension (IIH) is a clinical condition characterized by elevated intracranial pressure and absence of clinical, laboratory or radiographic evidence of central nervous system infection, vascular malformation, intracranial space occupying lesion or hydrocephalus. In the last years the raising understanding of pediatric IIH, especially concerning its demographics and epidemiology, ...
Kim Stanley E - - 2010
To assess contact mechanics and 3-dimensional (3-D) joint alignment in cranial cruciate ligament (CCL)-deficient stifles before and after tibial plateau leveling osteotomy (TPLO) and tibial tuberosity advancement (TTA) with the stifle in 90 degrees of flexion. In vitro biomechanical study. Cadaveric pelvic limb pairs (n=8) from dogs weighing 28-35 kg. ...
Xie Jun - - 2010
Several studies have demonstrated an increased intracapsular pressure in several hip disorders such as septic arthritis, synovitis, and trauma. We therefore measured the intracapsular pressure in different positions in early dysplasic hips and its relation to the concentration of interleukin-1beta (IL- 1beta), the volume of joint fluid, and the clinical ...
Kaim Lukas - - 2010
In this study of the haptic perception of small bumps, we investigated the influence of exploratory movement variation on signal integration and the percept's reliability. When sliding across a bump on a surface, the finger follows the geometry of the bump (i.e., the position signal). At the same time, patterns ...
Fautrelle Lilian L Université de Bourgogne, Dijon, Campus Universitaire, UFR STAPS, Dijon, France. - - 2010
The aim of this study was to determine whether the timing of the muscular synergies was influenced by the reduction of the base of support when we initiate a whole body reaching movement. To answer this question, we performed a principal component analysis on electromyographic activities of 24 muscles recorded ...
Pozzi Antonio - - 2010
To evaluate changes in femorotibial contact areas (CA) and pressures and meniscal strain after serial meniscectomies of the caudal pole of the medial meniscus. Ex vivo biomechanical study. Unpaired pelvic limbs from 8 adult dogs weighing 28-35 kg. All specimens underwent sequentially, a 30% radial width partial meniscectomy, a 75% ...
Thieman Kelley M - - 2010
To evaluate the biomechanical effect of horizontal, vertical, and cruciate suture repairs and partial meniscectomy on contact mechanics of dog stifles. Ex vivo experimental study. Cadaveric canine stifles (n=24). Simulated bucket handle medial meniscal tears were created in cadaveric dog stifles. Tears were treated with 1 of 3 suture repair ...
Davis Kermit G - - 2010
Masonry workers face some of the highest physical demands in the construction industry where large bags of masonry material weighing 42.7 kg are commonly handled by mason tenders who mix the mortar, distribute mortar and bricks/blocks, and erect/dismantle scaffolding throughout the day. The objective of this study was to determine ...
Yavuz Metin - - 2010
BACKGROUND: Foot blisters are common and painful nuisances in competitive sports and in military service. The pathogenesis of the problem is related to excessive frictional forces experienced on or under the foot. The incidence of foot blisters in marathon runners can reach 39%. Similarly, up to 42% of cadets in ...
Kendell C - - 2010
An improved understanding of factors related to dynamic stability in lower-limb prosthesis users is important, given the high occurrence of falls in this population. Current methods of assessing stability are unable to adequately characterize dynamic stability over a variety of walking conditions. F-Scan Mobile has been used to collect plantar ...
Cruickshank John M - - 2010
The life-time risk of developing HF is about 20% (40% if hypertension present). With increasing longevity in the developed world the burden of HF (hospitalisation) is set to increase over the next 10-20 years. CAD and hypertension are the two main causes of HF; CAD (and obesity) in the case ...
Kotschwar A B - - 2010
REASON FOR PERFORMING STUDY: Saddle pads are widely used in riding sports but their influence on saddle pressures is poorly understood. OBJECTIVE: To evaluate the forces acting on the horse's back, and the eventual pressure distribution by using different saddle pads underneath a fitting saddle. METHODS: Sixteen sound horses of ...
Chuang Shih-Youeng - - 2010
This study involves a biomechanical evaluation of a prospective injectable treatment for degenerative discs. The high osmolarity of the non-degenerated nucleus pulposus attracts water contributing to the hydrostatic behavior of the tissue. This intradiscal pressure is known to drop as fluid is exuded from the matrix due to compressive loading. ...
Nagano Akinori - - 2010
This study proposes a new approach of posturography analysis, which enables the evaluation of directional changes in the center of pressure trajectory. The concept is similar to that of so-called "stabilogram diffusion analysis". Instead of calculating the distance traveled by the center of pressure in a certain time interval, this ...
Dunlap Bradley J - - 2010
Lateral mass screws have a history of successful clinical use, but cannot always be used in the subaxial cervical spine. Despite safety concerns, cervical pedicle screws have been proposed as an alternative. Pedicle screws have been shown to be biomechanically stronger than lateral mass screws. No study, however, has investigated ...
Kelly Natalie H - - 2010
Introduction of highly crosslinked polyethylene has increased interest in large femoral heads, because thin acetabular liners can be used while maintaining low wear rates and larger heads decrease the incidence of instability. However, crosslinking and subsequent thermal treatments can cause decreased mechanical properties that might obviate the reduced wear under ...
Pensy Raymond A - - 2010
PURPOSE: To determine whether a single-incision extensile approach to the distal radius used for open reduction internal fixation and a concomitant radial sided carpal tunnel (CT) release safely and effectively decompresses the carpal tunnel. METHODS: Five pairs of cadaveric forearms were mounted to a tabletop with a cable pulley system ...
Nordsiden Lacey - - 2010
CONTEXT: Many styles of foot pads are commonly applied to reduce immediate pain and pressure under the foot. OBJECTIVE: To examine the effect of 3 different foot pads on peak plantar pressure (PPP) and mean plantar pressure (MPP) under the first metatarsophalangeal joint (MTPJ) during slow running. DESIGN: A 4 ...
Beales Darren John - - 2010
PURPOSE: It has been proposed that pelvic girdle pain (PGP) subjects adopt a high load motor control strategy during the low load task of the active straight leg raise (ASLR). This study investigated this premise by observing the motor control patterns adopted by pain free subjects during a loaded ASLR ...
Tong Jasper W K - - 2010
BACKGROUND: The aim of this study is to investigate the amount of pressure reduction for different padding and insole materials commonly used in the podiatry clinic. METHODS: Plantar pressure were taken for 5 subjects without insoles fitted (BF) in their daily sports shoes, and thereafter with 4 pairs of simple ...
Tastekin Nurettin - - 2010
OBJECTIVE: The aim of this study is to assess the discriminative value of all tender points, alone and in combination, that are designated as criteria for fibromyalgia diagnosis by the American College of Rheumatology (ACR), by investigating the appropriate pressure magnitude that should be applied during tenderness examination. DESIGN: Cross-sectional. ...
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