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https://www.readbyqxmd.com/read/28932500/effects-of-low-load-resistance-exercise-with-blood-flow-restriction-on-high-energy-phosphate-metabolism-and-oxygenation-level-in-skeletal-muscle
#1
Osamu Yanagisawa, Manabu Sanomura
We aimed to evaluate the effects of low-load resistance exercise with blood flow restriction (BFR) on high-energy phosphate metabolism, intracellular pH, and oxygenation level in the skeletal muscle. Seven males performed low-load ankle plantar flexion exercise (120 repetitions, 30% of one-repetition maximum) with and without BFR (130% of systolic blood pressure) inside a magnetic resonance device. Inorganic phosphate (Pi)-to-phosphocreatine (PCr) ratio, intracellular pH, and tissue oxygenation index (TOI) in the medial gastrocnemius were determined using (31)P-magnetic resonance spectroscopy and near-infrared spectroscopy before and during exercise...
June 2017: Interventional Medicine & Applied Science
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
#2
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/28900568/can-runners-perceive-changes-in-heel-cushioning-as-the-shoe-ages-with-increased-mileage
#3
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
#4
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/28895759/validation-of-plantar-pressure-simulations-using-finite-and-discrete-element-modelling-in-healthy-and-diabetic-subjects
#5
W Aerts, A Scarton, F De Groote, A Guiotto, Z Sawacha, C Cobelli, J Vander Sloten, I Jonkers
Plantar pressure simulation driven by integrated 3D motion capture data, using both a finite element and a discrete element model, is compared for ten healthy and ten diabetic neuropathic subjects. The simulated peak pressure deviated on average between 16.7 and 34.2% from the measured peak pressure. The error in the position of the peak pressure was on average smaller than 4.2 cm. No method was more accurate than the other although statistical differences were found between them. Both techniques are thus complementary and useful tools to better understand the alteration of diabetic foot biomechanics during gait...
September 12, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28892975/caudal-regression-syndrome-with-pressure-ulcers-of-the-foot-a-case-report
#6
Kosaku Yamamichi, Tsuyoshi Manabe, Tatsuya Uekihara
Caudal Regression Syndrome (CRS) is a rare disorder which consists of abnormalities in the lumbosacral spine, rectum, urinary system and lower limbs. These abnormalities also include orthopaedic deformities, such as hip dislocation, knee-flexion contracture with popliteal webbing and talipes equinovarus. Because of the rarity of this condition, few medical personnel are aware of it. Here, we present a case of CRS in a 15-year-old girl with pressure ulcers on the lateral malleolus and plantar surface of the foot, which had come into contact with the wheelchair footrest...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891991/a-graphene-based-flexible-pressure-sensor-with-applications-to-plantar-pressure-measurement-and-gait-analysis
#7
Cunguang Lou, Shuo Wang, Tie Liang, Chenyao Pang, Lei Huang, Mingtao Run, Xiuling Liu
In the present study, we propose and develop a flexible pressure sensor based on the piezoresistive effect of multilayer graphene films on polyester textile. The pressure response results from the deformation of graphene conductive network structure and the changes in resistance. Here, we show that the graphene pressure sensor can achieve a sensitivity value of 0.012 kPa - 1 , the measurement range can be as high as 800 kPa, and the response time can reach to 50 ms. Subsequently, a stable in-shoe wireless plantar pressure measurement system is developed and dynamic pressure distribution is acquired in real-time...
September 11, 2017: Materials
https://www.readbyqxmd.com/read/28888229/changes-in-ankle-joint-motion-after-supramalleolar-osteotomy-a-cadaveric-model
#8
Hak Jun Kim, Eui Dong Yeo, Im Joo Rhyu, Soon-Hyuck Lee, Yeon Soo Lee, Young Koo Lee
BACKGROUND: Malalignment of the ankle joint has been found after trauma, by neurological disorders, genetic predisposition and other unidentified factors, and results in asymmetrical joint loading. For a medial open wedge supramalleolar osteotomy(SMO), there are some debates as to whether concurrent fibular osteotomy should be performed. We assessed the changes in motion of ankle joint and plantar pressure after supramalleolar osteotomy without fibular osteotomy. METHODS: Ten lower leg specimens below the knee were prepared from fresh-frozen human cadavers...
September 9, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28877108/prevention-of-heel-pressure-injuries-and-plantar-flexion-contractures-with-use-of-a-heel-protector-in-high-risk-neurotrauma-medical-and-surgical-intensive-care-units-a-randomized-controlled-trial
#9
Tina Meyers
PURPOSE: The purpose of this study was to compare the use of a heel protector to standard of care (pillows) in the prevention of hospital-acquired pressure injuries (HAPI) of the heels and prevention of plantar flexion contractures. DESIGN: Randomized controlled trial. SUBJECTS AND SETTING: The study took place on a surgical intensive care unit, medical intensive care unit, and neurotrauma intensive care unit. Inclusion criteria were a minimum of 5 days of sedation related to care for a critical illness, immobility for 6 to 8 hours before study initiation, a Braden Scale for Pressure Sore Risk score 18 or less, and a mobility subscale score 2 or less...
September 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28869622/spinal-range-of-motion-and-plantar-pressure-in-sport-climbers
#10
Arletta Hawrylak, Krystyna Chromik, Barbara Ratajczak, Katarzyna Barczyk-Pawelec, Ewa Demczuk-Włodarczyk
PURPOSE: The aim of the study was to investigate the range of motion (ROM) of lumbar and thoracic articulations and static and dynamic plantar pressure in sport climbing athletes. METHODS: The sample included 30 sport climbers with a minimum of 2 years training experience and 30 physical education students who served as an active untrained control. ROM was assessed by a Saunders digital inclinometer and plantar pressure by a baropodometric platform. RESULTS: Mean spinal ROMs were greater in the sport climbers with an exception of extension, rotation, and lateral thoracic flexion, with a high degree of statistical significance obtained in the majority of the analyzed ROMs...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/28866600/a-review-in-detection-and-monitoring-gait-disorders-using-in-shoe-plantar-measurement-systems
#11
Julian A Ramirez-Bautista, Jorge A Huerta-Ruelas, Silvia L Chaparro-Cardenas, Antonio Hernandez-Zavala
Gait is an important part of our daily life as people do many activities in this dynamic position. Special footwear is fundamental to obtain an ergonomic gait and to extract data for analysis. The plantar foot pressure can be employed to detect many kinds of disorders, suggest improvements in treatments, rehabilitation tasks, patient monitoring, development of orthopedic devices and other applications. In the last years, attention in this topic is growing reflected in many works issued in both commercial and academic groups, focused on the development of devices for foot plantar pressure measurement with applications in medicine, sports, and research...
August 30, 2017: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/28861633/efficacy-of-pedobarographic-analysis-to-evaluate-proximal-medial-gastrocnemius-recession-in-patients-with-gastrocnemius-tightness-and-metatarsalgia
#12
Gustavo Vinagre, Matías Alfonso, Sebastián Cruz-Morande, Miguel Hernández, Carlos Villas
PURPOSE: Proximal medial gastrocnemius recession (PMGR) is a surgical procedure performed in patients with gastrocnemius tightness (GT). The purpose of this study is to evaluate the efficacy of pedobarographic analysis on PMGR in patients with GT and metatarsalgia. METHODS: This prospective study included 52 patients diagnosed with GT treated surgically with PMGR and 49 non-operated upon patients (control group). A total of 55 PMGRs (three bilateral) were performed as an isolated or combined procedure in the treatment group...
August 31, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28859516/novel-in-shoe-exoskeleton-for-offloading-of-forefoot-pressure-for-individuals-with-diabetic-foot-pathology
#13
Mark C Roser, Paul K Canavan, Bijan Najafi, Marcy Cooper Watchman, Kairavi Vaishnav, David G Armstrong
INTRODUCTION: Infected diabetic foot ulcers are the leading cause of lower limb amputation. This study evaluated the ability of in-shoe exoskeletons to redirect forces outside of body and through an exoskeleton as an effective means of offloading plantar pressure, the major contributing factor of ulceration. METHODS: We compared pressure in the forefoot and hind-foot of participants (n = 5) shod with novel exoskeleton footwear. Plantar pressure readings were taken during a 6-m walk at participant's self-selected speed, and five strides were averaged...
September 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28859075/plantar-pressures-are-elevated-in-people-with-longstanding-diabetes-related-foot-ulcers-during-follow-up
#14
Malindu E Fernando, Robert G Crowther, Peter A Lazzarini, Saiumaeswar Yogakanthi, Kunwarjit S Sangla, Petra Buttner, Rhondda Jones, Jonathan Golledge
OBJECTIVE: High plantar pressures are implicated in the development of diabetes-related foot ulcers. Whether plantar pressures remain high in patients with chronic diabetes-related foot ulcers over time is uncertain. The primary aim of this study was to compare plantar pressures at baseline and three and six months later in participants with chronic diabetes-related foot ulcers (cases) to participants without foot ulcers (controls). METHODS: Standardised protocols were used to measure mean peak plantar pressure and pressure-time integral at 10 plantar foot sites (the hallux, toes, metatarsals 1 to 5, mid-foot, medial heel and lateral heel) during barefoot walking...
2017: PloS One
https://www.readbyqxmd.com/read/28845172/balance-deficit-and-brain-connectivity-in-children-with-attention-deficit-hyperactivity-disorder
#15
Sun Mi Kim, Gi Jung Hyun, Tae-Woon Jung, Young Don Son, In-Hee Cho, Baik Seok Kee, Doug Hyun Han
OBJECTIVE: We aimed to assess disturbances in postural and gait balance and functional connectivity within the brain regions controlling balance in children with attention-deficit/hyperactivity disorder (ADHD). METHODS: Thirteen children with ADHD and 13 age- and sex-matched controls were recruited. Gait balance was assessed by the difference in the center of pressure (COP) between the left and right foot, as well as the difference in plantar pressure between the left and right foot during gait...
July 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28844292/comparison-of-plantar-pressure-distribution-in-patients-with-hallux-valgus-and-healthy-matched-controls
#16
Takashi Hida, Ryuzo Okuda, Toshito Yasuda, Tsuyoshi Jotoku, Hiroaki Shima, Masashi Neo
BACKGROUND: Detailed information regarding differences in plantar pressure distribution between hallux valgus and healthy feet is unavailable. The purposes of the present study were to clarify the characteristics of the plantar pressure distribution in patients with hallux valgus compared with healthy matched controls and to determine whether hallux valgus leads to dysfunction of the great toe during walking. METHODS: The study consisted of 25 patients with symptomatic moderate-to-severe hallux valgus (HV group) and 13 healthy matched volunteers (C group) without hallux valgus...
August 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28843185/effects-of-flexible-and-rigid-rocker-profiles-on-in-shoe-pressure
#17
Roy Reints, Juha M Hijmans, Johannes G M Burgerhof, Klaas Postema, Gijsbertus J Verkerke
Rocker profiles are commonly used in the prevention of diabetic foot ulcers. Rockers are mostly stiffened to restrict toe plantarflexion to ensure proper offloading. It is also described that toe dorsiflexion should be restricted. However, the difference in effect on plantar pressure between rigid rockers that restrict this motion and flexible rockers that do not is unknown. In-shoe plantar pressure data were collected for a control shoe and the same shoe with rigid and flexible rockers with the apex positioned at 50% and 60%...
August 12, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28804593/an-innovative-sealed-shoe-to-off-load-and-heal-diabetic-forefoot-ulcers-a-feasibility-study
#18
Gustav Jarl, Roy Tranberg
Background: Non-removable knee-high devices are the gold standard to treat diabetic foot ulcers located on the plantar forefoot, but they immobilize the ankle, which restricts daily life activities and has negative effects on joint functioning. Objective: To investigate the feasibility of sealing a therapeutic shoe to off-load and heal diabetic forefoot ulcers. Design: A case series of seven men with type 2 diabetes and a metatarsal head ulcer were prescribed therapeutic shoes and custom-made insoles. The shoe was sealed with a plastic band...
2017: Diabetic Foot & Ankle
https://www.readbyqxmd.com/read/28774311/design-and-implementation-of-a-bsn-based-system-for-plantar-health-evaluation-with-exercise-load-quantification
#19
Yang Wang, Zhiwen Liu, Jian Yang, Shaodong Ma
BACKGROUND: Plantar pressure measurement has become increasingly useful in the evaluation of plantar health conditions thanks to the recent progression in sensing technology. Due to the large volume and high energy consumption of monitoring devices, traditional systems for plantar pressure measurement are only focused on static or short-term dynamic monitoring. It makes them inappropriate for early detections of plantar symptoms usually presented in long-term activities. METHODS: A prototype of monitoring system based on body sensor network (BSN) is proposed for quantitative assessment of plantar conditions...
August 3, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28770005/increase-in-body-weight-over-a-two-year-period-is-associated-with-an-increase-in-midfoot-pressure-and-foot-pain
#20
Tom P Walsh, Paul A Butterworth, Donna M Urquhart, Flavia M Cicuttini, Karl B Landorf, Anita E Wluka, E Michael Shanahan, Hylton B Menz
BACKGROUND: There is a well-recognised relationship between body weight, plantar pressures and foot pain, but the temporal association between these factors is unknown. The aim of this study was to investigate the relationships between increasing weight, plantar pressures and foot pain over a two-year period. METHODS: Fifty-one participants (33 women and 18 men) completed the two-year longitudinal cohort study. The sample had a mean (standard deviation (SD)) age of 52...
2017: Journal of Foot and Ankle Research
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