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https://www.readbyqxmd.com/read/28820647/acute-fatigue-negatively-affects-risk-factors-for-injury-in-trained-but-not-well-trained-habitually-shod-runners-when-running-barefoot
#1
Nicholas Tam, Devon R Coetzee, Safwaan Ahmed, Robert P Lamberts, Yumna Albertus-Kajee, Ross Tucker
INTRODUCTION: Many factors may contribute to running-related injury. These include fatigue and footwear, the combination of which has rarely been studied, in particular with reference to barefoot running, recently advocated as a method to reduce injury risk. METHODS: Twenty-two runners (12 well-trained and 10 trained) participated in a 10 km fatiguing trial. Knee and ankle joint kinematics and kinetics and electromyography were assessed during overground running in the barefoot and shod condition...
August 18, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28808276/growing-up-habitually-barefoot-influences-the-development-of-foot-and-arch-morphology-in-children-and-adolescents
#2
Karsten Hollander, Johanna Elsabe de Villiers, Susanne Sehner, Karl Wegscheider, Klaus-Michael Braumann, Ranel Venter, Astrid Zech
The development of the human foot is crucial for motor learning in children and adolescents as it ensures the basic requirements for bipedal locomotion and stable standing. Although there is an ongoing debate of the advantages and disadvantages of early and permanent footwear use, the influence of regular barefootness on foot characteristics in different stages of child development has not been extensively evaluated. A multicenter epidemiological study was conducted to compare the foot morphology between habitually barefoot children and adolescents (N = 810) to age-, sex- and ethnicity-matched counterparts that are used to wearing shoes...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28806710/foot-strike-pattern-in-children-during-shod-unshod-running
#3
Pedro Ángel Latorre Román, Fernando Redondo Balboa, Felipe García Pinillos
The purpose of this study was to determine the foot strike patterns (FSPs) and neutral support (no INV/EVE and no foot rotation) in children, as well as to determine the influence of shod/unshod conditions and sex. A total of 713 children, aged 6 to 16 years, participated in this study (Age=10.28±2.71years, body mass index [BMI]=19.70±3.91kg/m(2), 302 girls and 411 boys). A sagittal and frontal-plane video (240Hz) was recorded using a high-speed camcorder, to record the following variables: rearfoot strike (RFS), midfoot strike (MFS), forefoot strike (FFS), inversion/eversion (INV/EVE) and foot rotation on initial contact...
August 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28800714/sagittal-subtalar-and-talocrural-joint-assessment-during-ambulation-with-controlled-ankle-movement-cam-boots
#4
Benjamin D McHenry, Emily L Exten, Janelle A Cross, Karen M Kruger, Brian Law, Jessica M Fritz, Gerald Harris
BACKGROUND: The purpose of the current study was to determine sagittal plane talocrural and subtalar kinematic differences between barefoot and controlled ankle movement (CAM) boot walking. This study used fluoroscopic images to determine talar motion relative to tibia and calcaneal motion relative to talus. METHODS: Fourteen male subjects (mean age 24.1 ± 3.5 years) screened for normal gait were tested. A fluoroscopy unit was used to collect images at 200 Hz during stance...
August 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28768339/habitual-minimalist-shod-running-biomechanics-and-the-acute-response-to-running-barefoot
#5
Nicholas Tam, Ian A J Darragh, Nikhil V Divekar, Robert P Lamberts
The aim of the study was to determine whether habitual minimalist shoe runners present with purported favorable running biomechanithat reduce running injury risk such as initial loading rate. Eighteen minimalist and 16 traditionally cushioned shod runners were assessed when running both in their preferred training shoe and barefoot. Ankle and knee joint kinetics and kinematics, initial rate of loading, and footstrike angle were measured. Sagittal ankle and knee joint stiffness were also calculated. Results of a two-factor ANOVA presented no group difference in initial rate of loading when participants were running either shod or barefoot; however, initial loading rate increased for both groups when running barefoot (p=0...
August 2, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28763713/spatiotemporal-and-plantar-pressure-patterns-of-1000-healthy-individuals-aged-3-101-years
#6
Marnee J McKay, Jennifer N Baldwin, Paulo Ferreira, Milena Simic, Natalie Vanicek, Elizabeth Wojciechowski, Anita Mudge, Joshua Burns
OBJECTIVE: The purpose of this study was to establish normative reference values for spatiotemporal and plantar pressure parameters, and to investigate the influence of demographic, anthropometric and physical characteristics. METHODS: In 1000 healthy males and females aged 3-101 years, spatiotemporal and plantar pressure data were collected barefoot with the Zeno™ walkway and Emed(®) platform. Correlograms were developed to visualise the relationships between widely reported spatiotemporal and pressure variables with demographic (age, gender), anthropometric (height, mass, waist circumference) and physical characteristics (ankle strength, ankle range of motion, vibration perception) in children aged 3-9 years, adolescents aged 10-19 years, adults aged 20-59 years and older adults aged over 60 years...
July 18, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28752319/lower-limb-muscle-activity-during-gait-in-individuals-with-hearing-loss
#7
Mahdi Majlesi, Elaheh Azadian, Nader Farahpour, Amir Ali Jafarnezhad, Hosein Rashedi
The objective of this study was to investigate the electrical activity of lower limb muscles during gait in an able-bodied control group and in deaf individuals. Thirty male children were equally divided into a control group and a group of deaf children. A portable EMG system was used to record the activity of the bilateral tibialis anterior, gastrocnemius medialis and vastus lateralis muscles during barefoot walking with and without dual task. For EMG analysis, the average root mean square (RMS) values of the five trials were calculated and then normalized based on the peak RMS obtained by the maximum isometric voluntary contraction...
July 27, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28743301/loading-pattern-of-postoperative-hallux-valgus-feet-with-and-without-transfer-metatarsalgia-a-case-control-study
#8
Xiang Geng, Dichao Huang, Xu Wang, Chao Zhang, Jiazhang Huang, Xin Ma, Li Chen, Chen Wang, Junsheng Yang, Heng Wang
BACKGROUND: Postoperative transfer metatarsalgia is a common complication after hallux valgus surgeries. Shortening of the first metatarsal is traditionally thought to be the primary cause of it. However, we speculate the abnormal loading pattern during gait is the real reason. This study is to determine specific differences in the loading patterns between reconstructive hallux valgus (HV) feet with and without postoperative transfer metatarsalgia, so as to find risky loading characteristics of this complication...
July 25, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28728130/superficial-plantar-cutaneous-sensation-does-not-trigger-barefoot-running-adaptations
#9
M A Thompson, K M Hoffman
It has long been proposed that the gait alterations associated with barefoot running are mediated by alterations in sensory feedback, yet there has been no data to support this claim. Thus, the purpose of this study was to examine the role of superficial plantar cutaneous feedback in barefoot and shod running. METHODS: 10 healthy active subjects (6 male, 4 female); mass: 65.2+9.7kg; age: 27+7.1years participated in this study. 10 over-ground running trials were completed in each of the following conditions: barefoot (BF), shod (SHOD), anesthetized barefoot (ANEST BF) and anesthetized shod (ANEST SHOD)...
June 27, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28713039/efficacy-of-ankle-foot-orthoses-types-on-walking-in-children-with-cerebral-palsy-a-systematic-review
#10
REVIEW
Atefeh Aboutorabi, Mokhtar Arazpour, Monireh Ahmadi Bani, Hassan Saeedi, John S Head
BACKGROUND: Ankle foot orthoses (AFOs) are orthotic devices that can be used to normalize the walking pattern of children with cerebral palsy (CP). One of the aims of orthotic management is to produce a more normal gait pattern by positioning joints in the proper position to reduce pathological reflex or spasticity. OBJECTIVE: To conduct a systematic review of the literature and establish the effect of treatment with various types of AFOs on gait patterns of children with CP...
July 13, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28693889/barefoot-doctors-and-the-health-care-revolution-in-rural-china-a-study-centered-on-shandong-province
#11
Sanchun Xu, Danian Hu
Barefoot doctors were rural medical personnel trained en masse, whose emergence and development had a particular political, economic, social, and cultural background. Like the rural cooperative medical care system, the barefoot doctor was a well-known phenomenon in the Cultural Revolution. Complicated regional differences and a lack of reliable sources create much difficulty for the study of barefoot doctors and result in differing opinions of their status and importance. Some scholars greatly admire barefoot doctors, whereas others harshly criticize them...
July 7, 2017: Endeavour
https://www.readbyqxmd.com/read/28693377/effect-of-floor-reaction-ankle-foot-orthosis-on-crouch-gait-in-patients-with-cerebral-palsy-what-can-be-expected
#12
Harald Böhm, Hösl Matthias, Frank Braatz, Leonhard Döderlein
BACKGROUND: Floor reaction ankle-foot orthoses are commonly prescribed to improve knee extension of children with cerebral palsy having crouch gait. Their effectiveness is debated. Therefore, the objective of this study is to optimize current prescription criteria for the improvement of crouch gait. STUDY DESIGN: Cross-sectional interventional study. METHODS: A total of 22 patients with bilateral spastic cerebral palsy, between 6 and 17 years, Gross Motor Function Classification System II-IV participated in this study...
July 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28686085/conceptualizing-minimalist-footwear-an-objective-definition
#13
Devon R Coetzee, Yumna Albertus, Nicholas Tam, Ross Tucker
Running has been plagued with an alarmingly high incidence of injury, which has resulted in the exploration of interventions aimed at reducing the risk of running-related injury. One such intervention is the introduction of footwear that mimics barefoot running. These have been termed minimalist shoes. Minimalist footwear aims to reduce the risk of injury by promoting adaptations in running biomechanics that have been linked to a reduction in both impact and joint forces. However, some studies have found that minimalist footwear may be beneficial to the runner as they promote favourable biomechanical adaptations, whilst other studies have found the opposite to be true...
July 7, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28670344/the-influence-of-gender-and-body-mass-index-on-the-fpi-6-evaluated-foot-posture-of-10-to-14-year-old-school-children-in-s%C3%A3-o-paulo-brazil-a-cross-sectional-study
#14
Barbarah Kelly Gonçalves de Carvalho, Patrícia Jundi Penha, Nárima Lívia Jundi Penha, Rodrigo Mantelatto Andrade, Ana Paula Ribeiro, Sílvia Maria Amado João
BACKGROUND: Adolescence is marked by changes to the body, including the feet. The Foot Posture Index (FPI-6) stands out from other foot type classification methods as valid, reliable, and multidimensional. However, the current literature differs according to age group, with little consolidation of normative data in school children, largely due to the influence of such factors as sex, age and body mass index (BMI). Thus, this study assesses foot posture in adolescents according to age, sex and BMI...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28666805/change-in-coefficient-of-fatigability-following-rapid-repetitive-movement-training-in-post-stroke-spastic-paresis-a-prospective-open-label-observational-study
#15
Michele Vecchio, Jean-Michel Gracies, Francesco Panza, Francesca Fortunato, Giovanna Vitaliti, Giulia Malaguarnera, Nicoletta Cinone, Raffaele Beatrice, Maurizio Ranieri, Andrea Santamato
BACKGROUND: In post-stroke patients, the possibility of performing an active ankle dorsiflexion movement is favorable for the recovery of gait. Moreover, the fatigue due to repetitive active ankle dorsiflexion could reduce the speed gait. We assessed the change in coefficient of fatigability of active ankle dorsiflexion after a home-based self-rehabilitative procedure in post-stroke patients. METHODS: In a prospective open-label observational study conducted in 2 university hospitals, a home-based self-rehabilitation treatment comprising two 12-minute sessions per day (3 times per week for 3 months) was performed by 10 outpatients with post-stroke lower limb impairment...
June 27, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28666444/development-of-village-doctors-in-china-financial-compensation-and-health-system-support
#16
REVIEW
Dan Hu, Weiming Zhu, Yaqun Fu, Minmin Zhang, Yang Zhao, Kara Hanson, Melisa Martinez-Alvarez, Xiaoyun Liu
BACKGROUND: Since 1968, China has trained about 1.5 million barefoot doctors in a few years' time to provide basic health services to 0.8 billion rural population. China's Ministry of Health stopped using the term of barefoot doctor in 1985, and changed policy to develop village doctors. Since then, village doctors have kept on playing an irreplaceable role in China's rural health, even though the number of village doctors has fluctuated over the years and they face serious challenges...
July 1, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28660438/lower-material-stiffness-in-rupture-repaired-achilles-tendon-during-walking-transmission-mode-ultrasound-for-post-surgical-tendon-evaluation
#17
Mathias Wulf, Mihir Shanker, Michael Schuetz, Michael Lutz, Christian M Langton, Sue L Hooper, James E Smeathers, Torsten Brauner, Scott C Wearing
PURPOSE: This cross-sectional study used transmission-mode ultrasound to evaluate dynamic tendon properties during walking in surgically repaired and contralateral Achilles tendon (AT), with a median (range) post-operative period of 22 (4-58) months. It was hypothesised that the axial transmission speed of ultrasound (TSOU) during walking would be slower, indicating lower material stiffness in repaired compared with contralateral AT. METHODS: Ten patients [median (range) age 47 (37-69) years; height 180 (170-189) cm; weight 93 (62-119) kg], who had undergone open surgical repair of the AT and were clinically recovered according to their treating clinicians, walked barefoot on a treadmill at self-selected speed (1...
June 28, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28654792/age-related-plantar-centre-of-pressure-trajectory-changes-during-barefoot-walking
#18
Gisela Sole, Todd Pataky, Christopher C Sole, Leigh Hale, Stephan Milosavljevic
Plantar centre of pressure (COP) variables during gait have been used to predict risk of injury, or consequences thereof. The aim of this study was to determine the effect of age on the COP trajectory during barefoot gait at a self-selected speed. 287 participants (aged 18-80year, 163 women) walked barefoot at self-selected speed across a Footscan(®) force platform, completing five trials for each side. COP trajectories were extracted and trajectory-level canonical correlation analysis was used to test their correlation with age...
June 21, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28649018/rear-foot-kinematics-when-wearing-lateral-wedge-insoles-and-foot-alignment-influence-the-effect-of-knee-adduction-moment-for-medial-knee-osteoarthritis
#19
Tomonori Sawada, Kenji Tanimoto, Kazuki Tokuda, Yoshitaka Iwamoto, Yuta Ogata, Masaya Anan, Makoto Takahashi, Nobuhiro Kito, Koichi Shinkoda
Lateral wedge insoles (LWIs) are prescribed for patients with medial knee osteoarthritis to reduce the external knee adduction moment (KAM). However, the biomechanical effects of LWIs are limited in some patients. The purpose of this study was to investigate whether the biomechanical effects of LWIs depend on individual foot alignment and to examine the relationship between change in KAM and changes in foot and ankle biomechanics when wearing LWIs. Twenty-one patients participated in this study. They were categorized into normal or abnormal foot groups based on the foot posture index (FPI)...
June 15, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28644193/heel-raised-foot-posture-do-not-affect-trunk-and-lower-extremity-biomechanics-during-a-barbell-back-squat-in-recreational-weightlifters
#20
Szu-Ping Lee, Carrie Gillis, Javier J Ibarra, Derek Oldroyd, Ryan Zane
It is claimed that weightlifting shoes with a raised heel may lead to a more upright trunk posture, and thus reduce the risk of back injuries during a barbell back squat. These proclaimed biomechanical effects have not been thoroughly investigated. The purpose of this study was to compare trunk and lower extremity biomechanics during barbell back squats in 3 foot postures.14 recreational weightlifters (7 male and 7 female) between the ages of 18-50 performed barbell back squats in 3 conditions (barefoot on a flat surface, barefoot on a heel-raised platform, and wearing heel-raised weightlifting shoes) at 80% of their 1-RM...
June 19, 2017: Journal of Strength and Conditioning Research
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