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https://www.readbyqxmd.com/read/27933255/dynamic-loading-and-kinematics-analysis-of-vertical-jump-based-on-different-forefoot-morphology
#1
Yang Shu, Yan Zhang, Lin Fu, Gusztáv Fekete, Julien S Baker, Jianshe Li, Yaodong Gu
PURPOSE: This study examined differences in ankle motion and plantar pressure between habitually barefoot male (HBM) and habitually shod male (HSM) during vertical jump. METHODS: Eighteen habitually barefoot males and twenty habitually shod males volunteered to join the test. Distance between hallux and second toe was measured with Easy-Foot-Scan. Plantar pressure and ankle kinematics were measured with EMED force platform and Vicon motion analysis system respectively...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27907069/16-weeks-of-progressive-barefoot-running-training-changes-impact-force-and-muscle-activation-in-habitual-shod-runners
#2
Ana Paula da Silva Azevedo, Bruno Mezêncio, Alberto Carlos Amadio, Julio Cerca Serrão
Short-term effects of barefoot and simulated barefoot running have been widely discussed in recent years. Consequences of adopting barefoot running for a long period, including as a training approach, still remain unknown. The present study evaluated the influence of 16 weeks of progressive barefoot running training on impact force and muscle activation in habitual shod runners. Six habitual shod runners (3 men and 3 women, 29.5 ± 7.3 years) were tested barefoot (BF) and shod (SH), before and after 16 weeks of progressive barefoot running training...
2016: PloS One
https://www.readbyqxmd.com/read/27902891/computerized-agility-training-improves-change-of-direction-and-balance-performance-independently-of-footwear-in-young-adults
#3
Max R Paquette, Brian K Schilling, Joshua D Bravo, Shelby A Peel, Yuhua Li, Robert J Townsend
: Understanding the effects of training in different footwear on sporting performance would be useful to coaches and athletes. PURPOSE: This study compared the effects of computerized agility training using 3 types of footwear on change-of-direction and balance performance in young adults. METHOD: Thirty recreationally active young adults (Mage = 22.8 ± 3.1 years; Mheight = 1.71 ± 0.7 m; Mbodymass = 73.4 ± 10.3 kg) were randomly assigned to a 6-week computerized agility training intervention in 1 of 3 footwear groups (n = 10/group): barefoot, minimal footwear, or traditional shoes...
November 30, 2016: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/27900198/do-rocker-sole-shoes-influence-postural-stability-in-chronic-low-back-pain-a-randomised-trial
#4
C Sian MacRae, Duncan Critchley, Matthew Morrissey, Adam Shortland, Jeremy S Lewis
BACKGROUND: People with chronic low back pain (CLBP) demonstrate greater postural instability compared with asymptomatic individuals. Rocker-sole shoes are inherently unstable and may serve as an effective balance training device. This study hypothesised that wearing rocker-sole shoes would result in long-term improvement in barefoot postural stability in people with CLBP. METHODS: 20 participants with CLBP were randomised to wear rocker-sole or flat-sole shoes for a minimum of 2 hours each day...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27888786/the-assessment-of-three-dimensional-foot-pronation-using-a-principal-component-analysis-method-in-the-stance-phase-of-running
#5
Mohammad Rabiei, Mansour Eslami, Afshin Fayyaz Movaghar
Foot pronation has not been quantified dynamically in three planes of movement in an in-vivo study. The aims of this study were to determine foot pronation through using Principal Component Analysis (PCA) method and to compare it among barefoot, shod and shod with 6° lateral wedge during the stance phase of running. In this method, three-dimension of foot movements were measured and each of these components represents a percentage of foot pronation. These components were derived based on eigenvalues and vectors of covariance matrix of primary variables...
September 20, 2016: Foot
https://www.readbyqxmd.com/read/27866014/3d-multi-segment-foot-kinematics-in-children-a-developmental-study-in-typically-developing-boys
#6
Kevin Deschamps, Filip Staes, Kathelijne Peerlinck, Christel Van Geet, Cedric Hermans, Giovanni Arnoldo Matricali, Sebastien Lobet
BACKGROUND: The relationship between age and 3D rotations objectivized with multisegment foot models has not been quantified until now. The purpose of this study was therefore to investigate the relationship between age and multi-segment foot kinematics in a cross-sectional database. METHODS: Barefoot multi-segment foot kinematics of thirty two typically developing boys, aged 6-20 years, were captured with the Rizzoli Multi-segment Foot Model. One-dimensional statistical parametric mapping linear regression was used to examine the relationship between age and 3D inter-segment rotations of the dominant leg during the full gait cycle...
November 11, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27865154/a-narrow-bimalleolar-width-is-a-risk-factor-for-ankle-inversion-injury-in-male-military-recruits-a-prospective-study
#7
Hannah Rice, Michael Nunns, Carol House, Joanne Fallowfield, Adrian Allsopp, Sharon Dixon
BACKGROUND: Ankle inversion injuries are one of the most common and burdensome injuries in athletic populations. Research that prospectively identifies characteristics associated with this injury is lacking. This prospective study compared baseline anthropometric and biomechanical gait characteristics of military recruits who sustained an ankle inversion injury during training, with those who remained injury-free. METHODS: Bilateral plantar pressure and three-dimensional lower limb kinematics were recorded in 1065 male, injury-free military recruits, during barefoot running...
November 10, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27863793/plantar-pressure-asymmetry-and-risk-of-stress-injuries-in-the-foot-of-young-soccer-players
#8
Renato R Azevedo, Emmanuel S da Rocha, Pedro S Franco, Felipe P Carpes
BACKGROUND: Asymmetries in the magnitude of plantar pressure are considered a risk factor for stress fracture of the fifth metatarsal in soccer athletes. OBJECTIVE: To investigate the presence of plantar pressure asymmetries among young soccer athletes. DESIGN: Observational. SETTING: Laboratory. PARTICIPANTS: Thirty young adolescents divided into a soccer player group (n = 15) or a matched control group (n = 15)...
October 24, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27833667/connection-between-depression-and-inability-to-fill-prescriptions-in-rural-fqhc-patients-with-chronic-disease
#9
K Bryant Smalley, Jacob C Warren, K Nikki Barefoot
The purpose of this paper was to (1) examine the rates of elevated depression symptoms among a sample of rural Federally Qualified Health Center (FQHC) patients with chronic disease and (2) determine if an inability to afford general prescription medications within the past 12 months is a significant predictor of depression symptoms among these patients. These data came from Project EDUCATE, an ongoing five-year study designed to be a large-scale, multifocal examination of the needs and experiences of rural FQHC patients with hypertension and/or diabetes...
April 2016: Rural Mental Health
https://www.readbyqxmd.com/read/27827276/influence-of-beliefs-about-health-and-illness-on-self-care-and-care-seeking-in-foreign-born-people-with-diabetic-foot-ulcers-dissimilarities-related-to-origin
#10
K Hjelm, J Apelqvist
OBJECTIVE: To describe beliefs about health and illness among foreign-born people with diabetic foot ulcers that might affect self-reported self-care and health-care seeking and to study whether there are dissimilarities related to origin. METHOD: Qualitative descriptive study. Semi-structured interviews with people aged 38-86 years; 13 born in European and 13 in non-European countries (all except one in the Middle East). All resident in Sweden for 7-60 years (median: 18...
November 2, 2016: Journal of Wound Care
https://www.readbyqxmd.com/read/27814317/the-response-of-the-body-when-carrying-a%C3%A2-handbag
#11
C Phonpichit, W Chansirinukor, C Akamanon
BACKGROUND: Carrying a load in hand is commonly seen in daily life. There were many studies investigating the optimal weight when carrying a backpack, however, only a few studies investigated optimal weight when carrying a bag in different ways. OBJECTIVE: To investigate the optimal weight for carrying a handbag. METHODS: This study involved 13 healthy females, randomized into four carrying weight patterns [no load, bag weight of 5% body weight (BW), 7% BW, and 10% BW] who were walking barefoot on the platform at preferable speed...
October 31, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/27813064/factors-influencing-cure-rates-of-non-dermatophyte-mold-and-candida-onychomycosis-analysis-of-outcomes-in-81-patients-who-completed-treatment
#12
Ranthilaka R Ranawaka, S H Padmal de Silva
OBJECTIVES: Onychomycosis shows a poor response to current topical, oral, or device-related antifungal therapies. The aim of this study was to identify factors influencing the cure rates of non-dermatophyte mold and Candida onychomycosis. METHODS: Eighty-one patients who completed treatments were divided into "cured" and "non-cured" groups. The statistical significance of differences between the two groups was studied. RESULTS: Male gender (P < 0...
November 4, 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27810691/tibial-rotation-in-running-does-rearfoot-adduction-matter
#13
Katina Mira Fischer, Steffen Willwacher, Joseph Hamill, Gert-Peter Brüggemann
OBJECTIVE: To quantify the magnitude of global rearfoot motion, in particular, rearfoot adduction and to investigate its relationship to tibial rotation. DESIGN: One hundred and four participants ran barefoot on an Ethylene Vinyl Acetate (EVA) foam. Global range of motion values for the shank, rearfoot and medial metatarsal segment as well as foot motion within the transverse plane were determined using an optoelectric motion capture system. Relationships between parameters were assessed using partial correlation analysis...
January 2017: Gait & Posture
https://www.readbyqxmd.com/read/27803620/a-comparison-of-stride-length-and-lower-extremity-kinematics-during-barefoot-and-shod-running-in-well-trained-distance-runners
#14
Peter Francis, James Ledingham, Sarah Clarke, D J Collins, Philip Jakeman
Stride length, hip, knee and ankle angles were compared during barefoot and shod running on a treadmill at two speeds. Nine well-trained (1500m time: 3min:59.80s ± 14.7 s) male (22 ±3 years; 73 ±9 kg; 1.79 ±0.4 m) middle distance (800 m - 5,000 m) runners performed 2 minutes of running at 3.05 m·s(-1) and 4.72 m·s(-1) on an treadmill. This approach allowed continuous measurement of lower extremity kinematic data and calculation of stride length. Statistical analysis using a 2X2 factorial ANOVA revealed speed to have a main effect on stride length and hip angle and footwear to have a main effect on hip angle...
September 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27801744/long-term-effects-of-habitual-barefoot-running-and-walking-a-systematic-review
#15
Karsten Hollander, Christoph Heidt, Babette van der Zwaard, Klaus-Michael Braumann, Astrid Zech
INTRODUCTION: Barefoot locomotion is widely believed to be beneficial for motor development and biomechanics but are implied to be responsible for foot pathologies and running-related injuries. While most of available studies focused on acute effects of barefoot running and walking little is known regarding the effects of long-term barefoot vs. shod locomotion. The purpose of this study was to systematically review the literature to evaluate current evidence of habitual barefoot (HB) vs...
October 31, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27783419/effects-of-compression-stockings-on-ankle-muscle-h-reflexes-during-standing
#16
Loic Espeit, Sebastien Pavailler, Thomas Lapole
INTRODUCTION: Wearing compression stockings (CS) may improve postural stability through additional cutaneous feedback. The aim of this study was to further determine how wearing CS could influence spinal excitability by investigating ankle muscle H-reflexes. METHODS: Fifteen subjects were asked to stand barefoot on a rigid floor with their eyes open. H-reflex amplitude was measured in the soleus (SOL), fibularis longus (FL), and tibialis anterior (TA) muscles, with and without CS...
October 26, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27770687/the-effects-of-squatting-footwear-on-three-dimensional-lower-limb-and-spine-kinetics
#17
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...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27770165/beyond-deficit-or-compensation-new-insights-on-postural-control-after-long-term-total-visual-loss
#18
Maitê M Russo, Thiago Lemos, Luís A Imbiriba, Nathalia L Ribeiro, Claudia D Vargas
Loss of vision is well known to affect postural control in blind subjects. This effect has classically been framed in terms of deficit or compensation depending on whether body sway increases or decreases in comparison with that of sighted subjects with the eyes open. However, studies have shown that postural responses can be modulated by the context and that changes in postural sway may not necessarily mean a worsened or improved postural control. The goal of our study was to test whether balance is affected by the context in blind subjects...
October 21, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27756526/anterior-cruciate-ligament-rupture-is-associated-with-abnormal-and-asymmetrical-lower-limb-loading-during-walking
#19
Hongshi Huang, Noël Keijsers, Herwin Horemans, Qinwei Guo, Yuanyuan Yu, Henk Stam, Stephan Praet, Yingfang Ao
OBJECTIVES: Anterior Cruciate Ligament (ACL) deficiency may result in abnormal lower limb loading with increased foot pronation. This study evaluated spatiotemporal parameters and plantar pressure distribution during walking in participants with and without an ACL rupture. DESIGN: Cross-sectional. METHODS: Plantar pressure was measured in 42 unilateral ACL deficient (ACLD) participants and 32 healthy controls while walking barefoot. Spatiotemporal parameters, pressure distribution and center of pressure (CoP) during foot roll off were determined...
September 30, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27744106/high-compared-to-low-arched-athletes-exhibit-smaller-knee-abduction-moments-in-walking-and-running
#20
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...
December 2016: Human Movement Science
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