keyword
MENU ▼
Read by QxMD icon Read
search

joint position error

keyword
https://www.readbyqxmd.com/read/29346282/smartphone-based-cooperative-indoor-localization-with-rfid-technology
#1
Fernando Seco, Antonio R Jiménez
In GPS-denied indoor environments, localization and tracking of people can be achieved with a mobile device such as a smartphone by processing the received signal strength (RSS) of RF signals emitted from known location beacons (anchor nodes), combined with Pedestrian Dead Reckoning (PDR) estimates of the user motion. An enhacement of this localization technique is feasible if the users themselves carry additional RF emitters (mobile nodes), and the cooperative position estimates of a group of persons incorporate the RSS measurements exchanged between users...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29340004/performance-and-kinematic-differences-in-putting-between-healthy-and-disabled-elite-golfers
#2
Tomáš Gryc, Petr Stastny, František Zahálka, Wojciech Smółka, Piotr Żmijewski, Artur Gołaś, Marek Zawartka, Tomáš Malý
Golfers with disability are limited in the execution of the full golf swing, but their performance in putting may be comparable because this stroke does not demand significant strength, balance and range of motion. Therefore, the aim of this study was to compare putting performance, kinetic and kinematic consistency between golfers with different disabilities and healthy athletes. The participants consisted of three disabled athletes (perinatal cerebral palsy, multiple sclerosis, below knee lower limb amputee) and three healthy golfers (age 34 ± 4...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29329738/relationship-between-proprioception-and-endurance-functionality-of-the-cervical-flexor-muscles-in-chronic-neck-pain-and-asymptomatic-participants
#3
Leila Ghamkhar, Amir H Kahlaee, Mohammad R Nourbakhsh, Amena Ahmadi, Amir M Arab
OBJECTIVE: The purpose of this study was to compare the relationship between flexion endurance capacity and joint position error in participants with or without chronic neck pain (CNP). METHODS: Sixty-one CNP and 60 asymptomatic volunteers participated in this cross-sectional, case-control, and correlational analysis study. The measured variables included absolute and constant joint repositioning errors in the sagittal and horizontal directions, clinical flexor endurance test score, pain intensity, and neck disability index...
January 9, 2018: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/29316902/the-effect-of-ankle-tape-on-joint-position-sense-after-local-muscle-fatigue-a-randomized-controlled-trial
#4
Akram Jahjah, Dietmar Seidenspinner, Karl Schüttler, Antonio Klasan, Thomas J Heyse, Dominik Malcherczyk, Bilal Farouk El-Zayat
BACKGROUND: Ankle tape is widely used by athletes to prevent ankle sprain. Although there is growing evidence that ankle tape improve joint position sense, but yet it is not clear even if tape improve joint position sense after muscle fatigue, because fatigue impair joint position sense and raise the risk of ankle sprain. The aim of this study is to examine the effect of ankle tape on joint position sense after local muscle fatigue. METHOD: This trial is a randomized controlled trial...
January 9, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29304254/the-relevance-of-proprioception-to-chronic-neck-pain-a-correlational-analysis-of-flexor-muscle-size-and-endurance-clinical-neck-pain-characteristics-and-proprioception
#5
Somayeh Amiri Arimi, Leila Ghamkhar, Amir H Kahlaee
Background: Impairment in the cervical proprioception and deep flexor muscle function and morphology have been regarded to be associated with chronic neck pain (CNP). Objective:  The aim of the study is to assess the relationship between proprioception and flexor endurance capacity and size and clinical CNP characteristics. Design:  This was an observational, cross-sectional study. Setting:  Rehabilitation hospital laboratory...
January 2, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29283794/position-sense-dysfunction-affects-proximal-and-distal-arm-joints-in-children-with-developmental-coordination-disorder
#6
Yu-Ting Tseng, Chia-Liang Tsai, Fu-Chen Chen, Jürgen Konczak
It is unclear, whether proprioceptive dysfunction in developmental coordination disorder (DCD) is localized affecting only specific joints or whether it is generalized affecting proximal and distal joints. Thus, this study assessed position sense acuity at the elbow and wrist in twenty children with DCD (age: 9-11 yrs.) using a joint position matching paradigm. Position sense bias (systematic error) at either joint was not significantly higher in DCD children when compared to typically developing children (TD)...
December 28, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/29283018/a-practical-clinical-kinematic-model-for-the-upper-limbs
#7
Jonathan J Noble, Nicola Rd Fry, Carly R Bingham, Rebecca H East, Adam P Shortland
A novel clinically practical upper limb model is introduced that has been developed through clinical use in children and adults with neurological conditions to guide surgery to the elbow and wrist. This model has a minimal marker set, minimal virtual markers, and no functional joint centres to minimise the demands on the patient and duration of data collection. The model calculates forearm supination independently from the humerus segment, eliminating any errors introduced by poor modelling of the shoulder joint centre...
December 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29238821/multibody-kinematic-optimization-for-the-estimation-of-upper-and-lower-limb-human-joint-kinematics-a-systematic-review
#8
Mickael Begon, Michael S Andersen, Raphael Dumas
Multibody kinematic optimization (MKO) aims at reducing soft tissue artefact (STA) and is key in musculoskeletal modeling. The objective was to identify the numerical methods and the level of validation for the estimation of the human joint kinematics using MKO. Seventy-four articles were extracted from a systematic search in five databases and cross-referencing. Model-derived kinematics was obtained using either optimization or Kalman filtering to minimize the difference between measured (by skin markers, electromagnetic or inertial sensors) and model-derived positions and/or orientations...
December 13, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29229406/validation-of-single-plane-fluoroscopy-and-2d-3d-shape-matching-for-quantifying-shoulder-complex-kinematics
#9
Rebekah L Lawrence, Arin M Ellingson, Paula M Ludewig
Fluoroscopy and 2D/3D shape-matching has emerged as the standard for non-invasively quantifying kinematics. However, its accuracy has not been well established for the shoulder complex when using single-plane fluoroscopy. The purpose of this study was to determine the accuracy of single-plane fluoroscopy and 2D/3D shape-matching for quantifying full shoulder complex kinematics. Tantalum markers were implanted into the clavicle, humerus, and scapula of four cadaveric shoulders. Biplane radiographs were obtained with the shoulder in five humerothoracic elevation positions (arm at the side, 30°, 60°, 90°, maximum)...
December 8, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29223495/estimation-of-spinal-joint-centers-from-external-back-profile-and-anatomical-landmarks
#10
A Nerot, W Skalli, X Wang
Defining a subject-specific model of the human body is required for motion analysis in many fields, such as in ergonomics and clinical applications. However, locating internal joint centers from external characteristics of the body still remains a challenging issue, in particular for the spine. Current methods mostly require a set of rarely accessible (3D back or trunk surface) or operator dependent inputs (large number of palpated landmarks and landmarks-based anthropometrics). Therefore, there is a need to provide an alternative way to estimate joint centers only using a limited number of easily palpable landmarks and the external back profile...
November 20, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29209188/age-related-decline-of-wrist-position-sense-and-its-relationship-to-specific-physical-training
#11
Ann Van de Winckel, Yu-Ting Tseng, Daniel Chantigian, Kaitlyn Lorant, Zinat Zarandi, Jeffrey Buchanan, Thomas A Zeffiro, Mia Larson, Becky Olson-Kellogg, Jürgen Konczak, Manda L Keller-Ross
Perception of limb and body positions is known as proprioception. Sensory feedback, especially from proprioceptive receptors, is essential for motor control. Aging is associated with a decline in position sense at proximal joints, but there is inconclusive evidence of distal joints being equally affected by aging. In addition, there is initial evidence that physical activity attenuates age-related decline in proprioception. Our objectives were, first, to establish wrist proprioceptive acuity in a large group of seniors and compare their perception to young adults, and second, to determine if specific types of training or regular physical activity are associated with preserved wrist proprioception...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29208211/plasma-firocoxib-concentrations-after-intra-articular-injection-of-autologous-conditioned-serum-prepared-from-firocoxib-positive-horses
#12
K F Ortved, M B Goodale, C Ober, G A Maylin, L A Fortier
Orthobiologics such as autologous conditioned serum (ACS) are often used to treat joint disease in horses. Because ACS is generated from the horse's own blood, any medication administered at the time of preparation would likely be present in stored ACS, which could lead to an inadvertent positive drug test following intra-articular (IA) injection. The main objective of this study was to determine if ACS prepared from firocoxib positive horses could result in detectable plasma concentrations of the drug following IA injection...
December 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29186168/quantitative-evaluation-of-age-related-decline-in-control-of-preprogramed-movement
#13
Naoshi Shimoda, Jongho Lee, Mitsuhiko Kodama, Shinji Kakei, Yoshihisa Masakado
In this paper, we examined the age-related changes in control of preprogramed movement, with emphasis on its accuracy. Forty-nine healthy subjects participated in this study, and were divided into three groups depending on their ages: the young group (20-39 years) (n = 16), the middle-age group (40-59 years) (n = 16), and the elderly group (60-79 years) (n = 17). We asked the subjects to perform step-tracking movements of the wrist joint with a manipulandum, and recorded the movements. We evaluated the accuracy of control of preprogramed movement in the three groups in terms of the primary submovement, which was identified as the first segment of the step-tracking movement based on the bell-shaped velocity profile, and calculated the distance between the end position of the primary submovement and the target (i...
2017: PloS One
https://www.readbyqxmd.com/read/29184285/knee-position-sense-does-the-time-interval-at-the-target-angle-affect-position-accuracy
#14
Shmuel Springer, Dor Kelman, Moshe Brand, Uri Gottlieb
[Purpose] This study examined whether the interval at the target angle during knee joint position sense (JPS) affected reposition accuracy, and evaluated the consequence of this factor on test-retest reliability. [Subjects and Methods] Twenty healthy subjects participated in this study. Reposition ability was measured after the knee was placed at a target angle (ranging from 40° to 60°) for intervals of 3, 6, 9, and 12 seconds, in randomized order. Two trials were performed for each condition. The measurement was repeated after a week...
October 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29174222/inter-and-intrarater-reliability-of-two-proprioception-tests-using-clinical-applicable-measurement-tools-in-subjects-with-and-without-knee-osteoarthritis
#15
Isabel A C Baert, Enrique Lluch, Thomas Struyf, Greta Peeters, Sophie Van Oosterwijck, Joanna Tuynman, Salim Rufai, Filip Struyf
BACKGROUND: The therapeutic value of proprioceptive-based exercises in knee osteoarthritis (KOA) management warrants investigation of proprioceptive testing methods easily accessible in clinical practice. OBJECTIVE: To estimate inter- and intrarater reliability of the knee joint position sense (KJPS) test and knee force sense (KFS) test in subjects with and without KOA. DESIGN: Cross-sectional test-retest design. METHOD: Two blinded raters performed independently repeated measures of the KJPS and KFS test, using an analogue inclinometer and handheld dynamometer, respectively, in eight KOA patients (12 symptomatic knees) and 26 healthy controls (52 asymptomatic knees)...
November 21, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/29165396/markerless-knee-joint-position-measurement-using-depth-data-during-stair-walking
#16
Ami Ogawa, Akira Mita, Ayanori Yorozu, Masaki Takahashi
Climbing and descending stairs are demanding daily activities, and the monitoring of them may reveal the presence of musculoskeletal diseases at an early stage. A markerless system is needed to monitor such stair walking activity without mentally or physically disturbing the subject. Microsoft Kinect v2 has been used for gait monitoring, as it provides a markerless skeleton tracking function. However, few studies have used this device for stair walking monitoring, and the accuracy of its skeleton tracking function during stair walking has not been evaluated...
November 22, 2017: Sensors
https://www.readbyqxmd.com/read/29163196/an-inertial-sensor-based-method-for-estimating-the-athlete-s-relative-joint-center-positions-and-center-of-mass-kinematics-in-alpine-ski-racing
#17
Benedikt Fasel, Jörg Spörri, Pascal Schütz, Silvio Lorenzetti, Kamiar Aminian
For the purpose of gaining a deeper understanding of the relationship between external training load and health in competitive alpine skiing, an accurate and precise estimation of the athlete's kinematics is an essential methodological prerequisite. This study proposes an inertial sensor-based method to estimate the athlete's relative joint center positions and center of mass (CoM) kinematics in alpine skiing. Eleven inertial sensors were fixed to the lower and upper limbs, trunk, and head. The relative positions of the ankle, knee, hip, shoulder, elbow, and wrist joint centers, as well as the athlete's CoM kinematics were validated against a marker-based optoelectronic motion capture system during indoor carpet skiing...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29161264/proprioceptive-assessment-in-clinical-settings-evaluation-of-joint-position-sense-in-upper-limb-post-stroke-using-a-robotic-manipulator
#18
Sara Contu, Asif Hussain, Simone Kager, Aamani Budhota, Vishwanath A Deshmukh, Christopher W K Kuah, Lester H L Yam, Liming Xiang, Karen S G Chua, Lorenzo Masia, Domenico Campolo
Proprioception is a critical component for motor functions and directly affects motor learning after neurological injuries. Conventional methods for its assessment are generally ordinal in nature and hence lack sensitivity. Robotic devices designed to promote sensorimotor learning can potentially provide quantitative precise, accurate, and reliable assessments of sensory impairments. In this paper, we investigate the clinical applicability and validity of using a planar 2 degrees of freedom robot to quantitatively assess proprioceptive deficits in post-stroke participants...
2017: PloS One
https://www.readbyqxmd.com/read/29156412/a-system-level-mathematical-model-of-basal-ganglia-motor-circuit-for-kinematic-planning-of-arm-movements
#19
Armin Salimi-Badr, Mohammad Mehdi Ebadzadeh, Christian Darlot
In this paper, a novel system-level mathematical model of the Basal Ganglia (BG) for kinematic planning, is proposed. An arm composed of several segments presents a geometric redundancy. Thus, selecting one trajectory among an infinite number of possible ones requires overcoming redundancy, according to some kinds of optimization. Solving this optimization is assumed to be the function of BG in planning. In the proposed model, first, a mathematical solution of kinematic planning is proposed for movements of a redundant arm in a plane, based on minimizing energy consumption...
November 10, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29129121/the-validity-and-intra-tester-reliability-of-markerless-motion-capture-to-analyse-kinematics-of-the-bmx-supercross-gate-start
#20
Josephine Grigg, Eric Haakonssen, Evelyne Rathbone, Robin Orr, Justin W L Keogh
The aim of this study was to quantify the validity and intra-tester reliability of a novel method of kinematic measurement. The measurement target was the joint angles of an athlete performing a BMX Supercross (SX) gate start action through the first 1.2 s of movement in situ on a BMX SX ramp using a standard gate start procedure. The method employed GoPro® Hero 4 Silver (GoPro Inc., USA) cameras capturing data at 120 fps 720 p on a 'normal' lens setting. Kinovea 0.8.15 (Kinovea.org, France) was used for analysis...
November 13, 2017: Sports Biomechanics
keyword
keyword
61656
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"