Read by QxMD icon Read

Foot arch

Wen-Xia Li, Ying Cao, Meng-Chen Zou, Ying Huang, Ping Hu, Xiang-Rong Luo, Ya Jiang, Yao-Ming Xue, Fang Gao
OBJECTIVE: To investigate foot biomechanics characteristic of patients with type 2 diabetes mellitus. METHODS: This study was conducted among 303 patients with type 2 diabetes. The whole foot was divided into 10 regions, namely the first toe (T1); the second to fifth toes (T2-5); the first, second, third, fourth, and fifth metatarsals (M1, M2, M3, M4, and M5, respectively); midfoot (MF), and the heel medial (HM). Foot arch index, foot angle and maximum peak pressure (MPP) of the 10 regions were measured using a Footscan gait system...
October 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Hythem Omar, Vikram Saini, Vibhor Wadhwa, George Liu, Avneesh Chhabra
The spring (plantar calcaneonavicular) ligament complex connects the calcaneus and navicular bone of the foot and serves as the primary static stabilizer of the medial longitudinal arch of the foot. In this article, we describe the normal anatomy of the spring ligament complex, illustrate 3T magnetic resonance imaging appearances in its normal and abnormal states, and discuss the pathological associations with relevant case examples.
November 2016: European Journal of Radiology
Baohan Pan, Kelly Byrnes, Mary Schwartz, C David Hansen, Claudia M Campbell, Malvina Krupiczojc, Michael J Caterina, Michael Polydefkis
We compared patterns of intraepidermal nerve fibers and mechanoreceptors from affected and unaffected plantar skin from patients with pachyonychia congenita (PC) and control subjects. Plantar biopsies from 10 genetically confirmed patients with PC (with a mutation in KRT6A) were performed at the ball of the foot (affected skin) and the arch (unaffected) and were compared to biopsies from corresponding locations in 10 control subjects. Tissue was processed to visualize intraepidermal nerve fibers (IENF) (PGP9...
October 20, 2016: Pain
Nicholas A Campitelli, Scott A Spencer, Kaitlyn Bernhard, Kristen Heard, Alan Kidon
BACKGROUND: This study investigated the effect of Vibram FiveFingers Bikila minimalist shoes on intrinsic foot musculature. We hypothesized that a gradual transition into minimalist shoes will increase the thickness of the abductor hallucis muscle. METHODS: Forty-one individuals were divided into four groups: control (traditional shod) (n = 9), restricted walking in Vibram FiveFingers (n = 11), running in Vibram FiveFingers (n = 10), and unlimited walking in Vibram FiveFingers (n = 11)...
September 2, 2016: Journal of the American Podiatric Medical Association
Joanne Paton, Sam Glasser, Richard Collings, Jon Marsden
BACKGROUND: Over 1 in 3 older people with diabetes sustain a fall each year. Postural instability has been identified as independent risk factor for falls within people with Diabetic Peripheral Neuropathy (DPN). People with DPN, at increased risk of falls, are routinely required to wear offloading insoles, yet the impact of these insoles on postural stability and postural control is unknown. The aim of this study was to evaluate the effect of a standard offloading insole and its constituent parts on the balance in people with DPN...
2016: Journal of Foot and Ankle Research
Douglas W Powell, Samantha Andrews, Cris Stickley, D S Blaise Williams
: High- (HA) and low-arched athletes (LA) experience distinct injury patterns. These injuries are the result of the interaction of structure and biomechanics. A suggested mechanism of patellofemoral pain pertains to frontal plane knee moments which may be exaggerated in LA athletes. We hypothesize that LA athletes will exhibit greater peak knee abduction moments than high-arched athletes. METHODS: Twenty healthy female recreational athletes (10HA and 10LA) performed five over-ground barefoot walking and five barefoot running trials at a self-selected velocity while three-dimensional kinematics and ground reaction forces were recorded...
October 13, 2016: Human Movement Science
Thomas G McPoil, Jessica Ford, Joel Fundaun, Chelsea Gallegos, Andrew Kinney, Peter McMillan, Jessica Murphy, Elliot Sky, Derrick Torba, Michael Bade
Previous studies have successfully used the longitudinal arch angle (LAA) to assess foot posture, but the measurement consistency and ability of the LAA to predict dynamic foot posture during activity in a variety of foot types have not been evaluated. The purpose of this study was to determine the reliability of the LAA as well as if the clinical method of assessing the LAA could be used to predict the LAA at midstance during walking for supinated, normal, and pronated foot types. The Arch Height Ratio was used to select 35 participants with 12 supinated, 46 normal, and 12 pronated feet...
September 20, 2016: Foot
Marco Hagen, Gerrit Schwiertz, Karl B Landorf, Hylton B Menz, George S Murley
The pronators and supinators play a key role in the medio-lateral stability of the ankle joint complex (i.e. talo-crural and subtalar joints). We hypothesized that each shank muscle has a specific activation pattern determined by its anatomical course around the axes of the subtalar and talo-crural joints. A secondary objective was to examine the effect of foot posture on these activation patterns. Forty-nine young adults (25 normal-arched feet, 24 flat-arched feet) performed maximum voluntary isometric contractions against manual resistance in four movement directions: plantarflexion (PF), dorsiflexion (DF), pronation (PRO) and supination (SUP)...
October 6, 2016: Human Movement Science
Hsin-Fu Lee, Yi-Hsin Chan, Chun-Li Wang
A 77-year-old male with subacute right foot ischemia was treated with endovascular therapy to relieve total thrombosis of the pedal arch extending from the dorsalis pedis of the anterior tibial artery into the posterior tibial artery, plantar segment. Because the procedure was only partially successful, rivaroxaban was used for thrombolytic treatment resulting in improvement of the patient's ischemic pain and avoidance of gangrenous progression and surgical amputation. This is the first report describing successful recanalization of pedal arch arterial thrombosis using rivaroxaban in a patient after suboptimal results of endovascular therapy...
September 2016: Acta Cardiol Sin
Thomas M Gooding, Mark A Feger, Joseph M Hart, Jay Hertel
CONTEXT:  The intrinsic foot muscles maintain the medial longitudinal arch and aid in force distribution and postural control during gait. Impaired intrinsic foot-muscle function has been linked to various foot conditions. Several rehabilitative exercises have been proposed to improve it; however, literature that identifies which individual muscles are activated during specific intrinsic foot-muscle exercises is lacking. OBJECTIVE:  To describe changes in activation of the intrinsic plantar foot muscles after 4 exercises as measured with T2 time magnetic resonance imaging (MRI)...
October 3, 2016: Journal of Athletic Training
Paolo Caravaggi, Alberto Leardini, Claudia Giacomozzi
Plantar load can be considered as a measure of the foot ability to transmit forces at the foot/ground, or foot/footwear interface during ambulatory activities via the lower limb kinematic chain. While morphological and functional measures have been shown to be correlated with plantar load, no exhaustive data are currently available on the possible relationships between range of motion of foot joints and plantar load regional parameters. Joints' kinematics from a validated multi-segmental foot model were recorded together with plantar pressure parameters in 21 normal-arched healthy subjects during three barefoot walking trials...
October 3, 2016: Journal of Biomechanics
Jinsup Song, Kersti Choe, Michael Neary, Rebecca A Zifchock, Kenneth Cameron, Michael Trepal, Marian Hannon, Howard J Hilstrom
INTRODUCTION AND OBJECTIVES: Healthy feet are important for overall health and well-being. Previous studies of older subjects showed that those with a lowered arch had an increased odds of having foot deformities, pain, and hyperpronation in gait. (1-3) No investigation to date has comprehensively characterized foot biomechanics in a large sample of healthy active young subjects. METHODS: Foot structure, function, and arch height flexibility (AHF) were measured in 1,052 incoming cadets to the United States Military Academy...
September 2016: Journal of the American Podiatric Medical Association
Omar Baarini, Mark Gilheany
An angioleiomyoma is a benign soft tissue tumour that arises from smooth muscle layer of blood vessels. The true aetiology of these masses is largely unknown and quite often may not be associated with pain. This paper illustrates the occurrence of an angioleiomyoma in the medial arch of the foot, a previously unreported location. Significant delay occurred in the patient being referred for specialist consultation, after attending numerous general practitioners for management. This highlighted the need for ongoing publication for case reports of this nature...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Xiaoguang Zhao, Takehiko Tsujimoto, Bokun Kim, Yasutomi Katayama, Kyousuke Wakaba, Zhennan Wang, Kiyoji Tanaka
[Purpose] The purpose of this study was to examine the effects of increasing physical activity on foot structure and ankle muscle strength in adults with obesity and to verify whether the rate of change in foot structure is related to that in ankle muscle strength. [Subjects and Methods] Twenty-seven adults with obesity completed a 12-week program in which the intensity of physical activity performed was gradually increased. Physical activity was monitored using a three-axis accelerometer. Foot structure was assessed using a three-dimensional foot scanner, while ankle muscle strength was measured using a dynamometry...
August 2016: Journal of Physical Therapy Science
Elisa S Arch, Bretta L Fylstra
The large, late-stance energy generated by the ankle is believed to be critical during gait. However, the distal foot absorbs/dissipates a considerable amount of energy during the same phase. Thus, the energy generated by the combined ankle-foot system is more modest, which raises questions regarding the necessity of such a large ankle power and the interplay between foot and ankle energetics. This study aimed to evaluate our conservation of energy hypothesis, which predicted if distal foot energy absorption/dissipation was reduced, less energy would be generated at the ankle and thus the same combined ankle-foot energetics would be achieved...
September 6, 2016: Journal of Applied Biomechanics
Grzegorz Styczynski, Adam Rdzanek, Arkadiusz Pietrasik, Janusz Kochman, Zenon Huczek, Piotr Sobieraj, Zbigniew Gaciong, Cezary Szmigielski
BACKGROUND: Aortic pulse-wave velocity (PWV) is a measure of aortic stiffness that has a prognostic role in various diseases and in the general population. A number of methods are used to measure PWV, including Doppler ultrasound. Although echocardiography has been used for PWV measurement, to the authors' knowledge, it has never been tested against an invasive reference method at the same time point. Therefore, the aim of this study was to compare prospectively an echocardiographic PWV measurement, called echo-PWV, with an invasive study...
September 7, 2016: Journal of the American Society of Echocardiography
Tuğba Kuru Çolak, İlker Çolak, Eren Timurtaş, Güven Bulut, M Gülden Polat
Misalignment of the talar neck after surgical repair can redistribute the load among the posterior, middle, and anterior facets of the subtalar joints, which can change the joint biomechanics, cause arthritis, and impair function. However, we found no studies analyzing the plantar pressures after treatment of talus neck fracture. We determined the dynamic plantar pedobarographic and radiographic characteristics and ankle range of motion, function, and pain among patients after surgical repair of talar neck fractures...
September 2, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
Karsten Hollander, Babette C van der Zwaard, Johanna Elsabe de Villiers, Klaus-Michael Braumann, Ranel Venter, Astrid Zech
BACKGROUND: Barefoot locomotion has evoked an increasing scientific interest with a controversial debate about benefits and limitations of barefoot and simulated barefoot walking and running. While most current knowledge comes from cross sectional laboratory studies, the evolutionary perspective suggests the importance of investigating the long-term effects. Observing habitually barefoot populations could fill the current gap of missing high quality longitudinal studies. Therefore, the study described in this design paper aims to investigate the effects of being habitually barefoot on foot mechanics and motor performance of children and adolescents...
2016: Journal of Foot and Ankle Research
C Caradu, A S Battut, C Gonthier, D Midy, E Ducasse
One third of patients with critical limb ischemia (CLI) has below the knee lesions and requires a restoration of direct blood flow into the foot. However, many of these patients are ineligible for open surgery. The primary goals thus become pain relief and limb salvage over patency. The angiosome concept helps determine the target artery to treat in priority. The endovascular approach has decreased morbidity and mortality rates compared to distal bypass surgery; while subintimal retrograde, trans-collateral and loop techniques push the limits of open surgery by reopening the plantar arch, thereby improving run-off...
September 1, 2016: Journal des Maladies Vasculaires
Finn Johannsen, Philip Hansen, Sandra Stallknecht, Michael Skovdal Rathleff, Stine Hangaard, Janus Damm Nybing, Mikael Boesen
BACKGROUND: Positional MRI (pMRI) allows for three-dimensional visual assessment of navicular position. In this exploratory pilot study pMRI was validated against a stretch sensor device, which measures movement of the medial plantar arch. We hypothesized that a combined pMRI measure incorporating both vertical and medial displacement of the navicular bone induced by loading would be correlated with corresponding stretch sensor measurements. METHODS: 10 voluntary participants were included in the study...
2016: Journal of Foot and Ankle Research
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"