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Son Jaebum J Department of Mechanical Engineering, Biomechanical Research Laboratory, University of Michigan, Ann Arbor, MI, - - 2010
To determine whether ankle orthoses that provide medial and lateral support, and have been found to decrease gait variability in older persons with peripheral neuropathy, decrease (improve) frontal plane ankle proprioceptive thresholds or increase unipedal stance time in that same population. Observational study in which unipedal stance time was determined ...
Berkhout M J - - 2010
Radioscapholunate arthrodesis is a salvage procedure indicated for osteoarthritis of the radiocarpal joint involving the lunate facet of the radius. This cadaver study examines changes in wrist motion resulting from radioscapholunate arthrodesis, and the effects of surgical techniques to improve the range of motion. Simulated radioscapholunate arthrodesis, distal scaphoidectomy and ...
Slaughter Adrienne - - 2010
STUDY DESIGN: Case Study Series. INTRODUCTION: Restriction of forearm rotation may be required for effective management and rehabilitation of the upper limb after trauma. PURPOSE OF THE STUDY: To compare the effectiveness of four splints in restricting forearm rotation. METHODS: Muenster, Sugartong, antipronation distal radioulnar joint (DRUJ), and standard wrist ...
Chu Vikki Wing-Shan - - 2010
This study investigated the ankle inversion and inversion velocity between various common motions in sports and simulated sprain motion, in order to provide a threshold for ankle sprain risk identification. The experiment was composed of two parts: firstly, ten male subjects wore a pair of sport shoes and performed ten ...
Walker Peter S - - 2011
The objective was to develop a simple, rapid, and low-cost method for evaluating proposed new total knee arthroplasty (TKA) models and then to evaluate 3 different TKA models with different kinematic characteristics. A "desktop" knee testing rig was used to apply forces and moments over a full flexion range, representing ...
Victor Jan - - 2010
A comparative kinematics study was conducted on six cadaver limbs, comparing tibiofemoral kinematics in five conditions: unloaded, under a constant 130 N ankle load with a variable quadriceps load, with and without a simultaneous constant 50 N medial and lateral hamstrings load. Kinematics were described as translation of the projected ...
Clayton H M - - 2010
REASONS FOR PERFORMING STUDY: Lightweight tactile stimulators attached to the hind pasterns increase the height of the hind hoof flight arc but details of the induced changes in swing phase kinematics and kinetics have not been investigated. HYPOTHESES: Stimulators on the hind pasterns are associated with increased hindlimb joint flexions ...
Streepey Jefferson W - - 2010
Stretching before competition has traditionally been thought to benefit performance; however, recent evidence demonstrating reduced muscle force and power immediately after stretching suggests otherwise. We hypothesized that knee joint position sense would be diminished immediately after proprioceptive neuromuscular facilitation (PNF) stretching to the hamstrings and quadriceps. Eighteen subjects (aged 18-30 ...
Legreneur Pierre - - 2010
The purpose of this study was to investigate the pattern of coordinations of the hindlimb joints in the world's smallest living primate (Microcebus murinus). The sequencing and timing of joint rotations have been analyzed in five adult males performing maximal leaping from a take-off immobile platform to their own wooden ...
Nisky Ilana - - 2010
Proximal and distal muscles are different in size, maximum force, mechanical action, and neuromuscular control. In the current study we explore the perception of delayed stiffness when probing is executed using movement of different joints. We found a proximodistal gradient in the amount of underestimation of delayed stiffness in the ...
Kleipool Roeland P - - 2010
This review deals with the relation between the anatomy and function of the ankle joint complex. The questions addressed are how high do the forces in the ankle joint get, where can the joints go (range of motion) and where do they go during walking and running. Finally the role ...
Barbieri Fabio A - - 2010
Angular kinematics of the hip, knee, and ankle joints, as well as ball velocity and accuracy for stationary and rolling balls were compared in a futsal (Five-a-Side Indoor soccer) context. Ten futsal athletes performed five kicks each on stationary and rolling futsal balls. Six digital cameras (120 Hz) recorded the ...
Dare Tyler - - 2010
Contraction joints between slabs of Portland cement concrete have a major impact on measured tire-pavement noise levels. It has been proposed that during the interval when the contact patch of the tire is over the joint, the system acts as a Helmholtz resonator, and that this mechanism is responsible for ...
Faber Gert S - - 2010
L5/S1, hip and knee moments during manual lifting tasks are, in a laboratory environment, frequently established by bottom-up inverse dynamics, using force plates to measure ground reaction forces (GRFs) and an optoelectronic system to measure segment positions and orientations. For field measurements, alternative measurement systems are being developed. One alternative ...
Kobayashi Toshiki - - 2010
Quantitative measurement of ankle joint stiffness following stroke could prove useful in monitoring the progress of a rehabilitation programme. The objective of this study was to design a manual device for use in the clinical setting. Manual measurement of spastic ankle joint stiffness has historically been conducted using hand-held dynamometers ...
Franchi Marco - - 2010
Ligaments have been described as multifascicular structures with collagen fibres cross-connecting to each other or running straight and parallel also showing a waviness or crimping pattern playing as a shock absorber/recoiling system during joint motions. A particular collagen array and crimping pattern in different ligaments may reflect different biomechanical roles ...
Richards Christopher T - - 2010
This study aimed to compare the swimming kinematics and hydrodynamics within and among aquatic and semi-aquatic/terrestrial frogs. High-speed video was used to obtain kinematics of the leg joints and feet as animals swam freely across their natural range of speeds. Blade element analysis was then used to model the hydrodynamic ...
Naito Kozo - - 2010
Although previous studies have shown that motion-dependent interactions between adjacent segments play an important role in producing knee extension during the soccer instep kick, detailed knowledge about the mechanisms underlying those interactions is lacking. The present study aimed to develop a 3-D dynamical model for the multijoint kinetic chain of ...
Noble Lawrence D LD - - 2010
Orthopaedic research on in vitro forces applied to bones, tendons, and ligaments during joint loading has been difficult to perform because of limitations with existing robotic simulators in applying full-physiological loading to the joint under investigation in real time. The objectives of the current work are as follows: (1) describe ...
DeSilva Jeremy M - - 2010
The midtarsal break was first described in this journal nearly 75 years ago to explain the ability of non-human primates to lift their heel independently of the rest of the foot. Since the initial description of the midtarsal break, the calcaneocuboid joint has been assumed to be the anatomical source ...
Ebert Jay R - - 2010
BACKGROUND: Progressive weight-bearing is recommended following autologous chondrocyte implantation. This weight-bearing program assumes that increasing external loads experienced at the foot during gait are closely related to external-knee-joint moments. We investigated this relationship, and examined other variables that may contribute to knee-joint kinetics of which the clinician can modify using ...
Evans David W - - 2010
Due primarily to its colloquial function, 'manipulation' is a poor term for distinguishing one healthcare intervention from another. With reports continuing to associate serious adverse events with manipulation, particularly relating to its use in the cervical spine, it is essential that the term be used appropriately and in accordance with ...
Haim Amir - - 2010
OBJECTIVES: Kinetic patterns of the lower extremity joints have been shown to be influenced by modification of the location of the center of pressure (CoP) of the foot. The accepted theory is that a shifted location of the CoP alters the distance between the ground reaction force and the center ...
Katsuhira Junji - - 2010
The purpose of this study was to examine the effects of general principles of person transfer techniques specifically on the low back joint extension moment. These effects were examined by the following measurable quantitative parameters: 1) trunk bending angle, 2) knee flexion angle, 3) distance between the centers of gravity ...
Spinelli M - - 2010
Recent in vivo studies have identified variations in knee prosthesis function depending on prosthesis geometry, kinematic conditions, and the absence/presence of soft-tissue constraints after knee replacement surgery. In particular, unicondylar knee replacements (UKR) are highly sensitive to such variations. However, rigorous descriptions of UKR function through experimental simulation studies, performed ...
Park Woojin - - 2010
Despite the prevalence of obesity, how obesity affects human physical capabilities is not well documented. As an effort toward addressing this, the current study investigated the obesity effect on joint range of motion (RoM) based on data collected from 20 obese and 20 non-obese males. In total, 30 inter-segmental motions ...
Griffin Nicole L - - 2010
Previous studies have referred to the degree of dorsal canting of the base of the proximal phalanx as an indicator of human-like metatarsophalangeal joint function and thus a diagnostic trait of habitual bipedality in the fossil record. Here, we used a simple method to investigate differences in forefoot function on ...
Harvey Lisa A LA Rehabilitation Studies Unit, Northern Clinical School, Sydney Medical School, The University of Sydney, PO Box 6, Ryde, NSW, Australia, - - 2010
Total knee arthroplasty is a common intervention for patients with arthritis. Post-surgical rehabilitation often includes continuous passive motion. However, it is not clear whether continuous passive motion is effective. To evaluate the effectiveness of continuous passive motion following total knee arthroplasty in people with arthritis. We searched the Cochrane Central ...
Roland Michelle - - 2010
The tibio-femoral joint has been mechanically approximated with two fixed kinematic axes of rotation, the longitudinal rotational (LR) axis in the tibia and the flexion-extension (FE) axis in the femur. The mechanical axis finder developed by Hollister et al. (1993, "The Axes of Rotation of the Knee," Clin. Orthop. Relat. ...
Sheehan Frances T - - 2010
An understanding of rear-foot (talocrural and subtalar joints) kinematics is critical for diagnosing foot pathologies, designing total ankle implants, treating rear-foot injuries and quantifying gait abnormalities. The majority of kinematic data available have been acquired through static cadaver work or passive in vivo studies. The applicability of these data to ...
Rodriguez Tiffany M - - 2010
The authors sought to determine if principles of the Leading Joint Hypothesis, when applied to a multijoint, bimanual coordination task, could provide insight into the contribution of intralimb dynamics to interlimb coordination. Participants repetitively traced ellipse templates with an isodirectional motion of the end effectors (both hands moving counterclockwise [CCW]) ...
van Trijffel Emiel - - 2010
What is the inter-rater reliability for measurements of passive physiological or accessory movements in lower extremity joints? Systematic review of studies of inter-rater reliability. Individuals with and without lower extremity disorders. Range of motion and end-feel using methods feasible in daily practice. 17 studies were included of which 5 demonstrated ...
Mayers Lester - - 2010
Tap dance is a unique performing art utilizing the lower extremities as percussion instruments. In a previous study these authors reported decreased injury prevalence among tap dancers compared to other dance and sports participants. No biomechanical analyses of tap dance exist to explain this finding. The purpose of the current ...
van de Pol Rachel J - - 2010
What is the inter-rater reliability for measurements of passive physiological or accessory movements in upper extremity joints? Systematic review of studies of inter-rater reliability. Individuals with and without upper extremity disorders. Range of motion and end-feel using methods feasible in clinical practice. Twenty-one studies were included of which 11 demonstrated ...
Ha Kevin H KH Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA. - - 2010
This paper describes a means of controlling the knee movement of a powered knee prosthesis during non-weight-bearing activity such as sitting, by utilizing surface EMG from the quadriceps and hamstring muscle groups in the residual limb. The method was implemented on a powered prosthesis on three amputee subjects, and experimental ...
Kawamoto Hiroaki H Department of Intelligent Interaction Technologies, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8573, Japan. - - 2010
Our goal is to enhance the quality of life of patients with hemiplegia by means of an active motion support system that assists the impaired motion such as to make it as close as possible to the motion of an able bodied person. We have developed the Robot Suit HAL ...
van de Pol Rachel J - - 2010
Question: What is the inter-rater reliability for measurements of passive physiological or accessory movements in upper extremity joints? Design: Systematic review of studies of inter-rater reliability. Participants: Individuals with and without upper extremity disorders. Outcome measures: Range of motion and end-feel using methods feasible in clinical practice. Results: Twenty-one studies ...
Sosnoff Jacob J - - 2010
The purpose of the author's investigation was to examine the effect of knee joint angle on torque control of the quadriceps muscle group. In all, 12 healthy adults produced maximal voluntary contractions and submaximal torque (15, 30, and 45% MVC [maximal voluntary contraction]) at leg flexion angles of 15 degrees ...
Mirbagheri M M MM Dept. of Physical Medicine and Rehabilitation, Northwestern University, - - 2010
We quantified the mechanical abnormalities of the spastic wrist in chronic stroke survivors, and determined whether these findings were representative of those recorded at the elbow and ankle joints. System identification techniques were used to characterize the mechanical abnormalities of these joints and to identify the contribution of intrinsic and ...
Kuntze Gregor - - 2010
The lunge is regularly used in badminton and is recognized for the high physical demands it places on the lower limbs. Despite its common occurrence, little information is available on the biomechanics of lunging in the singles game. A video-based pilot study confirmed the relatively high frequency of lunging, approximately ...
Snell J - - 2010
Little evidence exists evaluating the possible effect of dressings on the recovery of function, sensation and joint motion following a hand burn. Hand burns are traditionally covered by a layer of non-adherent dressing followed by gauze and bandages. However, there is no evidence for the efficacy of this type of ...
Johnson Molly B MB Neuroscience & Behavior Program, 110 Totman Bldg., 30 Eastman Lane, University of Massachusetts, Amherst, MA 01003, USA. mjohnson@nsm.umass.edu - - 2010
Research into the multi-segmental mobility of the torso could add to our understanding of the contributions of the head and torso to human movement. The purpose of this study was to determine the motion and temporal coordination of the head and multiple torso segments during the sit-to-stand task. Thirty-two young, ...
Mart?nez-Ram?rez A - - 2010
BACKGROUND: Ankle sprains are one of the most common lower extremity injuries. Real time human motion tracking is an accurate, inexpensive and portable system to obtain kinematic and kinetic measurements. The purpose of this study was to discriminate between subjects with chronic ankle instability and subjects with stable ankles through ...
Ryan Michael M University of British Columbia, Experimental Medicine Program, 602-1355 West 14th, Vancouver V6H1R2, Canada. - - 2009
Despite anecdotal evidence linking overpronation to the onset of Achilles tendinopathy (AT), there is little conclusive evidence of a particular movement pattern of the lower extremity associated with this injury. Therefore, the objective of the present study was to observe differences in the kinematic profiles of healthy runners (CON) and ...
Santos-Rocha R - - 2009
The motion of lower extremity joints is one of the mechanisms by which mechanical load is attenuated. The main purposes of this study were to characterize the motion of the right lower limb in a group of 18 women experienced in step exercise, when performing selected step patterns, and to ...
Hales Michael E - - 2009
Many individuals involved in the sport of powerlifting believe that the squat and deadlift have such similar lifting characteristics that the lifts yield comparable training results. The aim of this study was to compare and contrast biomechanical parameters between the conventional style deadlift and the back squat performed by 25 ...
Jung Do-Young - - 2009
STUDY DESIGN: Controlled laboratory study. OBJECTIVES: To examine the effects of standing wall stretching with and without medial arch support (WMAS versus WOMAS) on the displacement of the myotendinous junction (DMTJ) of the medial gastrocnemius, rearfoot angle, and navicular height in subjects with neutral foot alignment and pes planus. BACKGROUND: ...
Niessen Martijn H M - - 2009
OBJECTIVE: To investigate whether passive and active reproduction of joint position, as well as detection of passive motion (as measures of a subject's proprioception) of the shoulder differ while sitting compared with lying supine. DESIGN: Shoulder proprioception of 28 healthy subjects (age, 22.2 +/- 1.7 yrs, 15 men) was tested. ...
Zhang Songning - - 2009
STUDY DESIGN: Controlled laboratory study. OBJECTIVES: To examine effectiveness of an ankle brace with a subtalar locking system in restricting ankle inversion during passive and dynamic movements. BACKGROUND: Semirigid ankle braces are considered more effective in restricting ankle inversion than other types of brace, but a semirigid brace with a ...
Jenkyn T R - - 2010
The weight-bearing in-vivo kinematics and kinetics of the talocrural joint, subtalar joint and joints of the foot were quantified using optical motion analysis. Twelve healthy subjects were studied during level walking and anticipated medial turns at self-selected pace. A multi-segment model of the foot using skin-mounted marker triads tracked four ...
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