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https://www.readbyqxmd.com/read/29023505/end-member-modeling-of-the-grain-size-record-of-sikouzi-fine-sediments-in-ningxia-china-and-implications-for-temperature-control-of-neogene-evolution-of-east-asian-winter-monsoon
#1
Hanchao Jiang, Shiming Wan, Xiaolin Ma, Ning Zhong, Debo Zhao
The Late Cenozoic East Asian winter monsoon (EAWM) enhancement has been attributed to several factors, such as uplift of the Tibetan Plateau, retreat of the Paratethys Sea, and global cooling related to polar ice volume increment. However, the fundamental forcing factors remain enigmatic due to the absence of long and continuous climate records and sensitive indicators. Here we reanalyzed the published grain-size record of Sikouzi fine sediments in the western Chinese Loess Plateau through end-member (EM) modeling...
2017: PloS One
https://www.readbyqxmd.com/read/29021632/arctic-cryosphere-and-milankovitch-forcing-of-great-basin-paleoclimate
#2
Matthew Lachniet, Yemane Asmerom, Victor Polyak, Rhawn Denniston
Although Great Basin paleoclimate history has been examined for more than a century, the orbital-scale paleoclimate forcings remain poorly understood. Here we show - by a detailed phasing analysis of a well-dated stalagmite δ(18)O time series - that Great Basin paleoclimate is linearly related to, but lagged, the 23,000 yr precession cycle in northern hemisphere summer insolation by an average of 3240 years (-900 to 6600 yr range) over the last two glacial cycles. We interpret these lags as indicating that Great Basin climate is sensitive to and indirectly forced by changes in the cryosphere, as evidenced by fast and strong linkages to global ice volume and Arctic paleoclimate indicators...
October 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28985487/lower-extremity-dynamics-of-walking-in-neuropathic-diabetic-patients-who-wear-a-forefoot-offloading-shoe
#3
Sicco A Bus, Josina C Maas, Nicoline M Otterman
BACKGROUND: A forefoot-offloading shoes has a negative-heel rocker outsole and is used to treat diabetic plantar forefoot ulcers, but its mechanisms of action and their association with offloading and gait stability are not sufficiently clear. METHODS: Ten neuropathic diabetic patients were tested in a forefoot-offloading shoe and subsequently in a control shoe with no specific offloading construction, both worn on the right foot (control shoe on left), while walking at 1...
October 2, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28980032/-rupture-of-the-tendon-of-the-tibialis-anterior-muscle-etiology-clinical-symptoms-and-treatment
#4
REVIEW
H Waizy, B Bouillon, C Stukenborg-Colsman, D Yao, S Ettinger, L Claassen, C Plaass, K Danniilidis, D Arbab
Ruptures of the tendon of the tibialis anterior muscle tend to occur in the context of degenerative impairments. This mainly affects the distal avascular portion of the tendon. Owing to the good compensation through the extensor hallucis longus and extensor digitorum muscles, diagnosis is often delayed. In addition to the clinical examination, magnetic resonance inaging (MRI) diagnostics are of particular importance, although damage or rupture of the tendon can also be demonstrated sonographically. Therapeutic measures include conservative or operative measures, depending on the clinical symptoms...
October 4, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28970118/effects-of-lateral-wedge-insole-application-on-medial-compartment-knee-osteoarthritis-severity-evaluated-by-ultrasound
#5
Yosuke Ishii, Masataka Deie, Naoto Fujita, Hiroshi Kurumadani, Masakazu Ishikawa, Atsuo Nakamae, Seiju Hayashi, Jiro Hata, Nobuo Adachi, Toru Sunagawa
BACKGROUND: It is known that a lateral wedge insole (LWI) decreases medial loading stress in the knee. Medial meniscus pathology, such as a degenerative tear or a root tear, leading to malfunction and medial meniscus extrusion (MME), is a critical condition that leads to severe osteoarthritis (OA). However, the effect of LWI on MME is still unknown. The objective of this study was to investigate the effect of LWI use on MME in knee OA using ultrasonography. METHODS: Thirty-one knees from 18 patients with knee OA diagnosed radiographically were allocated to the OA group (mean age, 73...
September 29, 2017: Knee
https://www.readbyqxmd.com/read/28952905/the-use-of-orthotic-insoles-to-prevent-lower-limb-overuse-injuries-a-critically-appraised-topic
#6
Janie L Kelly, Alison R Valier
No abstract text is available yet for this article.
September 27, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28946113/continuous-use-of-textured-insole-improve-plantar-sensation-and-stride-length-of-people-with-parkinson-s-disease-a-pilot-study
#7
Ellen Lirani-Silva, Rodrigo Vitório, Fabio Augusto Barbieri, Diego Orcioli-Silva, Lucas Simieli, Lilian Teresa Bucken Gobbi
Findings involving the acute benefits of textured insoles on gait in people with Parkinson's disease (PD) are still controversial. To our best acknowledge, the continuous use of textured insoles on gait in people with PD has not been investigated yet. The aim of this pilot study was to obtain preliminary data of the effects of textured insoles on gait and plantar sensation in people with PD after one-week intervention and one-week follow-up period. Nineteen patients with PD were distributed into two groups: experimental group and control group...
September 18, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28937593/a-new-proxy-measurement-algorithm-with-application-to-the-estimation-of-vertical-ground-reaction-forces-using-wearable-sensors
#8
Yuzhu Guo, Fabio Storm, Yifan Zhao, Stephen A Billings, Aleksandar Pavic, Claudia Mazzà, Ling-Zhong Guo
Measurement of the ground reaction forces (GRF) during walking is typically limited to laboratory settings, and only short observations using wearable pressure insoles have been reported so far. In this study, a new proxy measurement method is proposed to estimate the vertical component of the GRF (vGRF) from wearable accelerometer signals. The accelerations are used as the proxy variable. An orthogonal forward regression algorithm (OFR) is employed to identify the dynamic relationships between the proxy variables and the measured vGRF using pressure-sensing insoles...
September 22, 2017: Sensors
https://www.readbyqxmd.com/read/28934332/end-member-modelling-as-a-tool-for-climate-reconstruction-an-eastern-mediterranean-case-study
#9
Sarah Beuscher, Stefan Krüger, Werner Ehrmann, Gerhard Schmiedl, Yvonne Milker, Helge Arz, Hartmut Schulz
The Eastern Mediterranean Sea is a sink for terrigenous sediments from North Africa, Europe and Asia Minor. Its sediments therefore provide valuable information on the climate dynamics in the source areas and the associated transport processes. We present a high-resolution dataset of sediment core M40/4_SL71, which was collected SW of Crete and spans the last ca. 180 kyr. We analysed the clay mineral composition, the grain size distribution within the silt fraction, and the abundance of major and trace elements...
2017: PloS One
https://www.readbyqxmd.com/read/28931718/solar-powered-ventilation-of-african-termite-mounds
#10
Samuel A Ocko, Hunter King, David Andreen, Paul Bardunias, J Scott Turner, Rupert Soar, L Mahadevan
How termite mounds function to facilitate climate control is still only partially understood. Recent experimental evidence in the mounds of a single species, the south Asian termite Odontotermes obesus, suggests that the daily oscillations of radiant heating associated with diurnal insolation patterns drive convective flow within them. How general this mechanism is remains unknown. To probe this, we consider the mounds of the African termite Macrotermes michaelseni, which thrives in a very different environment...
September 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28927350/test-retest-reliability-of-the-tekscan%C3%A2-f-scan%C3%A2-7-in-shoe-plantar-pressure-system-during-treadmill-walking-in-healthy-recreationally-active-individuals
#11
Kyle Patrick, Luke Donovan
In-shoe plantar pressure systems are commonly used in clinical and research settings to assess foot function during functional tasks. Recently, Tekscan® has updated their F-Scan® in-shoe plantar pressure system; however, this system's test-retest reliability has not been established. Therefore, the purpose of this study was to determine the test-retest reliability of the F-Scan® 7 system in recreationally active individuals during treadmill walking. Seventeen healthy adults completed 2 sessions of treadmill walking...
September 20, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28918597/effect-of-vibration-on-postural-control-and-gait-of-elderly-subjects-a-systematic-review
#12
REVIEW
Atefeh Aboutorabi, Mokhtar Arazpour, Mahmood Bahramizadeh, Farzam Farahmand, Reza Fadayevatan
BACKGROUND AND AIM: Gait and balance disorders are common in the elderly populations, and their prevalence increases with age. This systematic review was performed to summarize the current evidence for subthreshold vibration interventions on postural control and gait in elderly. METHOD: A review of intervention studies including the following words in the title/abstract: insole, foot and ankle appliances, vibration, noise and elderly related to balance and gait...
September 16, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28918370/a-metric-study-of-insole-foot-impressions-in-footwear-of-identical-twins
#13
Michael S Nirenberg, Kewal Krishan, Tanuj Kanchan
Foot impressions are of utmost importance in crime scene investigations. Foot impressions are available in the form of barefoot prints, sock-clad footprints, and as impressions within footwear. Sometimes suspects leave their footwear at the crime scene, and the insole of this footwear may contain the foot impression of the suspect which may be important evidence linking him or her to the crime. The task of identification based on the analysis of footprints can be challenging when the footprints belonging to one of the identical twin is available for examination...
September 11, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28914616/effect-of-full-length-carbon-fiber-insoles-on-lower-limb-kinetics-in-patients-with-midfoot-osteoarthritis-a-pilot-study
#14
Taeim Yi, Jung Hyun Kim, Mooyeon Oh-Park, Ji Hye Hwang
OBJECTIVES: We investigated the effects of full-length carbon fiber (FCF) insoles on gait, muscle activity, kinetics, and pain in patients with midfoot osteoarthritis (OA). DESIGN: We enrolled 13 patients with unilateral midfoot OA (mild: Visual Analog Scale [VAS] range, 1-3; moderate, VAS range, 4-7) and healthy controls. All participants were asked to walk under two conditions: with and without FCF insole. The outcome measures were ground reaction force, quantitative gait parameters, electromyography activities and pain severity (VAS)...
September 14, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28905683/a-modified-walk-in-system-versus-scheduled-appointments-in-a-secondary-care-prosthetic-and-orthotic-clinic
#15
Gustav Jarl, Liselotte Hermansson
BACKGROUND: Waiting is common in health care, delays intervention, and has negative effects on satisfaction with services. OBJECTIVES: To evaluate effects of a modified walk-in system, where patients were invited consecutively from the waiting list to attend the clinic on a walk-in basis, on waiting times, services, and work environment. STUDY DESIGN: Parallel-group trial. METHODS: In all, 1286 consecutive patients in need of shoe insoles were randomized to waiting lists for modified walk-in ( n = 655) or a scheduled appointment ( n = 631)...
September 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28900568/can-runners-perceive-changes-in-heel-cushioning-as-the-shoe-ages-with-increased-mileage
#16
Mark W Cornwall, Thomas G McPoil
BACKGROUND: For those runners who utilize footwear and have a rearfoot strike pattern, the durability of the midsole heel region has been shown to deteriorate as shoe mileage increases. PURPOSE: The purpose of this study was threefold: 1) to determine if the runner can self-report changes in heel cushioning properties of the midsole after an extended period of distance running, 2) to determine if force and plantar pressures measured in the heel region of the midsole using a capacitance sensor insole change after running 640 km, and 3) to determine if a durometer could be used clinically to objectively measure changes in the hardness of the material in the heel region of the midsole...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28895909/measurement-of-walking-ground-reactions-in-real-life-environments-a-systematic-review-of-techniques-and-technologies
#17
REVIEW
Erfan Shahabpoor, Aleksandar Pavic
Monitoring natural human gait in real-life environments is essential in many applications, including quantification of disease progression, monitoring the effects of treatment, and monitoring alteration of performance biomarkers in professional sports. Nevertheless, developing reliable and practical techniques and technologies necessary for continuous real-life monitoring of gait is still an open challenge. A systematic review of English-language articles from scientific databases including Scopus, ScienceDirect, Pubmed, IEEE Xplore, EBSCO and MEDLINE were carried out to analyse the 'accuracy' and 'practicality' of the current techniques and technologies for quantitative measurement of the tri-axial walking ground reactions outside the laboratory environment, and to highlight their strengths and shortcomings...
September 12, 2017: Sensors
https://www.readbyqxmd.com/read/28893202/preliminary-evaluation-of-prototype-footwear-and-insoles-to-optimise-balance-and-gait-in-older-people
#18
Hylton B Menz, Maria Auhl, Shannon E Munteanu
BACKGROUND: Footwear has the potential to influence balance in either a detrimental or beneficial manner, and is therefore an important consideration in relation to falls prevention. The objective of this study was to evaluate balance ability and gait patterns in older women while wearing prototype footwear and insoles designed to improve balance. METHODS: Older women (n = 30) aged 65 - 83 years (mean 74.4, SD 5.6) performed a series of laboratory tests of balance ability (postural sway on a foam rubber mat, limits of stability and tandem walking, measured with the Neurocom® Balance Master) and gait patterns (walking speed, cadence, step length and step width at preferred speed, measured with the GAITRite® walkway) while wearing (i) flexible footwear (Dunlop Volley™), (ii) their own footwear, and (iii) prototype footwear and insoles designed to improve dynamic balance...
September 11, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28873878/assessing-gait-impairments-based-on-auto-encoded-patterns-of-mahalanobis-distances-from-consecutive-steps
#19
Mario Muñoz-Organero, Richard Davies, Sue Mawson
Insole pressure sensors capture the force distribution patterns during the stance phase while walking. By comparing patterns obtained from healthy individuals to patients suffering different medical conditions based on a given similarity measure, automatic impairment indexes can be computed in order to help in applications such as rehabilitation. This paper uses the data sensed from insole pressure sensors for a group of healthy controls to train an auto-encoder using patterns of stochastic distances in series of consecutive steps while walking at normal speeds...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28862665/wearable-devices-for-classification-of-inadequate-posture-at-work-using-neural-networks
#20
Eya Barkallah, Johan Freulard, Martin J-D Otis, Suzy Ngomo, Johannes C Ayena, Christian Desrosiers
Inadequate postures adopted by an operator at work are among the most important risk factors in Work-related Musculoskeletal Disorders (WMSDs). Although several studies have focused on inadequate posture, there is limited information on its identification in a work context. The aim of this study is to automatically differentiate between adequate and inadequate postures using two wearable devices (helmet and instrumented insole) with an inertial measurement unit (IMU) and force sensors. From the force sensors located inside the insole, the center of pressure (COP) is computed since it is considered an important parameter in the analysis of posture...
September 1, 2017: Sensors
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