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Daniel J Southwell, Shane A Petersen, Tyson A C Beach, Ryan B Graham
Altering footwear worn during performance of the barbell back squat has been shown to change motion patterns, but it is not completely understood how this affects biomechanical loading demands. The primary objective was to compare lower back and extremity net joint moments in 24 experienced weightlifters (12M, 12F) who performed 80% one-repetition maximum back squats under three different footwear conditions (barefoot, running shoes, weightlifting shoes). Results showed that there was a significant main effect of footwear condition on the knee extension moment (p=0...
October 12, 2016: Journal of Electromyography and Kinesiology
Ryo Suzuki, Kohta Ito, Taeyong Lee, Naomichi Ogihara
Accurate identification of the material properties of the plantar soft tissue is important for computer-aided analysis of foot pathologies and design of therapeutic footwear interventions based on subject-specific models of the foot. However, parameter identification of the hyperelastic material properties of plantar soft tissues usually requires an inverse finite element analysis due to the lack of a practical contact model of the indentation test. In the present study, we derive an analytical contact model of a spherical indentation test in order to directly estimate the material properties of the plantar soft tissue...
September 22, 2016: Journal of the Mechanical Behavior of Biomedical Materials
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
Kimberley A Andersen, Paul N Grimshaw, Richard M Kelso, David J Bentley
Injuries are common within military populations, with high incidence rates well established in the literature. Injuries cause a substantial number of working days lost, a significant cost through compensation claims and an increased risk of attrition. In an effort to address this, a considerable amount of research has gone into identifying the most prevalent types of injury and their associated risk factors. Collective evidence suggests that training and equipment contribute to a large proportion of the injuries sustained...
December 2016: Sports Medicine—Open
K J Hornig, B A Burgess, N T Saklou, V Johnson, A Malmlov, D C Van Metre, P S Morley, S R Byers
BACKGROUND: Infection control is critical to providing high-quality patient care. Many veterinary teaching hospitals (VTHs) utilize footbaths or footmats at entrances and key control points throughout the facility to decrease trafficking of pathogenic microorganism on contaminated footwear. HYPOTHESIS/OBJECTIVES: To compare efficacy of 4 disinfectants used in footmats for decreasing bacterial contamination of footwear in a large animal hospital. ANIMALS: A single adult dairy cow was housed in a stall for 4 days to facilitate stall contamination with fecal material...
October 12, 2016: Journal of Veterinary Internal Medicine
Kade L Paterson, Kim L Bennell, Tim V Wrigley, Ben R Metcalf, Jessica Kasza, Rana S Hinman
OBJECTIVE: To validate simple criteria that distinguish flat flexible from stable supportive walking shoes by comparing their effects on the knee adduction moment (KAM) in people with medial knee osteoarthritis (OA). DESIGN: This was a cross-sectional biomechanical study. We proposed five criteria to differentiate flat flexible from stable supportive shoes, and selected three pairs of shoes representing each class for biomechanical testing. 28 participants aged ≥50 years with symptomatic medial knee OA underwent gait analysis barefoot and wearing each of the six selected shoes, in random order...
October 8, 2016: Osteoarthritis and Cartilage
Cédric Morio, Aurore Bourrelly, Lise Sissler, Nils Gueguen
The present study investigated the relationship between objective measurements of the available (CoFA), the utilized (CoFU) coefficient of friction and subjective perception of grip or slipperiness. It was hypothesized that significant correlations exist between the perception of grip or slip and the CoF during sports movement and that a minimum CoF was needed to ensure an optimal grip/slipperiness perception. Eighteen healthy active females performed forward and backward cutting tasks onto a forceplate. Six shoes and two floors were used to induce different grip conditions...
September 29, 2016: Gait & Posture
K J Lee, S H Lee, M B Kim, Y H Lee
PURPOSE: We report the clinical outcome after coverage for soft-tissue defect on the medial foot and ankle with an adipofascial fold-down flap based on the posterior tibial artery perforator branch proximal to the defect. MATERIALS: Nine patients (five males and four females) with soft-tissue defects on the medial foot and ankle area underwent the procedure from March 2009 to May 2014. The average age of the patients was 54 years (range, 8-82). The pivot point of transposition of this flap is the posterior tibial artery perforator proximal to the defect...
September 8, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
I S Hettigama, H K G Punchihewa, N K Heenkenda
BACKGROUND: Foot ailments are common among schoolchildren, some of which may be attributed to wearing ill-fitting footwear. As schoolchildren often participate in athletic activity, they are doubly vulnerable to foot ailments, and are particularly vulnerable to conditions such as hallux valgus, Achilles tendonitis, athlete's foot, corns and calluses. Thus, there is an acute need for the design and manufacture of ergonomic footwear for this target group. While research on appropriate footwear for children has been carried out in relation to child populations in other societies, research on the circumstances of Sri Lankan schoolchildren is lacking...
October 17, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
Catherine Bowen, Ann Ashburn, Mark Cole, Margaret Donovan-Hall, Malcolm Burnett, Judy Robison, Louis Mamode, Ruth Pickering, Dan Bader, Dorit Kunkel
BACKGROUND: Ill-fitting shoes have been implicated as a risk factor for falls but research to date has focused on people with arthritis, diabetes and the general older population; little is known about people with neurological conditions. This survey for people with stroke and Parkinson's explored people's choice of indoor and outdoor footwear, foot problems and fall history. METHODS: Following ethical approval, 1000 anonymous postal questionnaires were distributed to health professionals, leads of Parkinson's UK groups and stroke clubs in the wider Southampton area, UK...
2016: Journal of Foot and Ankle Research
Charlotte Apps, Thorsten Sterzing, Thomas O'Brien, Mark Lake
Unstable shoes (US) continually perturb gait which can train the lower limb musculature, but muscle co-contraction and potential joint stiffness strategies are not well understood. A shoe with a randomly perturbing midsole (IM) may enhance these adaptations. This study compares ankle and knee joint stiffness, and ankle muscle co-contraction during walking and running in US, IM and a control shoe in 18 healthy females. Ground reaction forces, three-dimensional kinematics and electromyography of the gastrocnemius medialis and tibialis anterior were recorded...
September 20, 2016: Journal of Electromyography and Kinesiology
Ratnakar P Veeramachaneni, Matthew N Bartels, Kevin Frison, Timothy Tiu, Rakhi Sutaria, Karen Morice, Se Won Lee
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
Kokui Elikplim Pomevor, Augustine Adomah-Afari
Purpose The purpose of this paper is to assess available human resources for neonatal care and their skills, in order to explore health providers' perceptions of quality of neonatal care in health facilities in Ghana. Design/methodology/approach Data were gathered using qualitative interviews with health providers working in the maternity and paediatric wards and midwives; direct observation; and documentary review at a regional hospital, a municipal hospital and four health centres in a municipality in a region in Southern Ghana...
October 10, 2016: International Journal of Health Care Quality Assurance
Kenate Bekele, Kebede Deribe, Tsige Amberbir, Geleta Tadele, Gail Davey, Abdi Samuel
OBJECTIVE: Podoconiosis is a neglected tropical disease characterised by a slowly progressive swelling of the foot and lower leg. It is prevalent among subsistence barefoot farmers who live and work in highland areas of the tropics. This study was conducted in Wayu Tuka 'woreda' (district), western Ethiopia to determine the prevalence of podoconiosis and assess factors associated with acute adenolymphangitis (ALA) episodes. METHODS AND ANALYSIS: A two phase, community-based cross-sectional study was conducted between January and March 2015...
2016: BMJ Open
Travis J Dekker, Yash Avashia, Suhail K Mithani, Andrew P Matson, Alexander J Lampley, Samuel B Adams
: Introduction Achilles tendon and posterior heel wound complications are difficult to treat. These typically require soft tissue coverage via microvascular free tissue transfer at a tertiary referral center. Here, we describe coverage of a series of posterior heel and Achilles wounds via simple, local tissue transfer, called a bipedicle fasciocutaneous flap. This flap can be performed by an orthopaedic foot and ankle surgeon, without resources of tertiary/specialized care or microvascular support...
September 23, 2016: Foot & Ankle Specialist
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
Kevin D Dames, Jeremy D Smith
Kinetic and kinematic responses during walking vary by footwear condition. Load carriage also influences gait patterns, but it is unclear how an external load influences barefoot walking. Twelve healthy adults (5 women, 7 men) with no known gait abnormalities participated in this study (age=23±3years, height=1.73±0.11m, and mass=70.90±12.67kg). Ground reaction forces and 3D motion were simultaneously collected during overground walking at 1.5ms(-1) in four conditions: Barefoot Unloaded, Shod Unloaded, Barefoot Loaded, and Shod Loaded...
September 11, 2016: Gait & Posture
Laura E Sansosti, Zinnia M Rocha, Matthew W Lawrence, Andrew J Meyr
INTRODUCTION AND OBJECTIVES: Immobilization devices such as surgical shoes and walking boots are commonly prescribed by podiatric physicians in the treatment of a variety of lower extremity pathologies and during the post-operative recovery period, but may have the potential to affect a patient’s ability to maintain a safe level of control over the accelerator and brake pedals while operating an automobile. The objective of this investigation was to assess driving outcomes in a group of healthy participants under variable foot wear conditions...
September 2016: Journal of the American Podiatric Medical Association
Jose I Priego Quesada, Mercedes Sanchís Almenara, Zachary Y Kerr, Enrique Alcantara
BACKGROUND: Padel is a relatively new sport, with steady participation increases over the past 50 years. However, there is a need for data examining injury and associated risk factors. The study examined how intrinsic (e.g. age and sex) and extrinsic factors (e.g. padel participation and equipment) were associated with injury in recreational padel players. METHODS: A self-administered questionnaire completed by 80 recreational padel players between September 2014 and March 2015 acquired data on: respondent demographics and padel-related activities; the number of injuries within the past year; characteristics of the last injury sustained; and extrinsic factors including respondents' evaluations of equipment (e...
September 15, 2016: Journal of Sports Medicine and Physical Fitness
Girmay Tsegay, Abreham Tamiru, Tsige Amberbir, Gail Davey, Kebede Deribe
BACKGROUND: In Northern Ethiopia, use of footwear by the rural community is limited, and non-governmental organizations provide footwear for school children as a means of preventing podoconiosis. However, this is not a sustainable strategy. This study assessed willingness to pay for footwear among people with and without podoconiosis. METHODS: A comparative cross-sectional community-based study was conducted in Mecha and Gozamen woredas among randomly selected people with and without podoconiosis...
September 2016: International Health
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