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https://www.readbyqxmd.com/read/28222048/comparison-of-running-economy-values-while-wearing-no-shoes-minimal-shoes-and-normal-running-shoes
#1
Robbie G Cochrum, Ryan T Connors, John M Coons, Dana K Fuller, Don W Morgan, Jennifer L Caputo
Cochrum, RG, Connors, RT, Coons, JM, Fuller, DK, Morgan, DW, and Caputo, JL. Comparison of running economy values while wearing no shoes, minimal shoes, and normal running shoes. J Strength Cond Res 31(3): 595-601, 2017-The purpose of this study was to quantify differences in running economy (RE) at 50 and 70% of each subject's velocity at V[Combining Dot Above]O2max (vV[Combining Dot Above]O2max) across barefoot and 2 mass, stack height, and heel-to-toe-drop controlled footwear conditions (minimal shoes and normal running shoes) in 9 recreational distance runners (mean age 26...
March 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28168959/the-bending-stiffness-of-shoes-is-beneficial-to-running-energetics-if-it-does-not-disturb-the-natural-mtp-joint-flexion
#2
Keonyoung Oh, Sukyung Park
A local minimum for running energetics has been reported for a specific bending stiffness, implying that shoe stiffness assists in running propulsion. However, the determinant of the metabolic optimum remains unknown. Highly stiff shoes significantly increase the moment arm of the ground reaction force (GRF) and reduce the leverage effect of joint torque at ground push-off. Inspired by previous findings, we hypothesized that the restriction of the natural metatarsophalangeal (MTP) flexion caused by stiffened shoes and the corresponding joint torque changes may reduce the benefit of shoe bending stiffness to running energetics...
January 18, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28129518/body-mass-and-weekly-training-distance-influence-the-pain-and-injuries-experienced-by-runners-using-minimalist-shoes
#3
Joel T Fuller, Dominic Thewlis, Jonathan D Buckley, Nicholas A T Brown, Joseph Hamill, Margarita D Tsiros
BACKGROUND: Minimalist shoes have been popularized as a safe alternative to conventional running shoes. However, a paucity of research is available investigating the longer-term safety of minimalist shoes. PURPOSE: To compare running-related pain and injury between minimalist and conventional shoes in trained runners and to investigate interactions between shoe type, body mass, and weekly training distance. STUDY DESIGN: Randomized clinical trial; Level of evidence, 2...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28033057/calcaneal-bone-mass-modification-in-recreational-runners
#4
Elena Escamilla-Martínez, Alfonso Martínez-Nova, Beatriz Gómez-Martín, Raquel Sánchez-Rodríguez, Lourdes María Fernández-Seguín, Juan Diego Pedrera-Zamorano
BACKGROUND: The calcaneus is the bone of the foot that first receives the impact of running, generating vibrations that might have a positive effect in modifying the trabecular bone mass. The objective of this study was to determine the variation in calcaneal bone density in runners during a 6-month training season, comparing it with a control sample. METHODS: Bone density of the heel was measured in 33 male recreational runners by means of a contact ultrasonic bone analyzer...
November 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27891180/the-effect-of-foot-orthoses-with-forefoot-cushioning-or-metatarsal-pad-on-forefoot-peak-plantar-pressure-in-running
#5
Michaela Hähni, Anja Hirschmüller, Heiner Baur
BACKGROUND: Foot orthoses are frequently used in sports for the treatment of overuse complaints with sufficient evidence available for certain foot-related overuse pathologies like plantar fasciitis, rheumatoid arthritis and foot pain (e.g., metatarsalgia). One important aim is to reduce plantar pressure under prominent areas like metatarsal heads. For the forefoot region, mainly two common strategies exist: metatarsal pad (MP) and forefoot cushioning (FC). The aim of this study was to evaluate which of these orthosis concepts is superior in reducing plantar pressure in the forefoot during running...
2016: Journal of Foot and Ankle Research
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
#6
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...
December 2016: Foot
https://www.readbyqxmd.com/read/27868427/influence-of-shoe-midsole-hardness-on-plantar-pressure-distribution-in-four-basketball-related-movements
#7
Wing-Kai Lam, Wei Xuan Ng, Pui Wah Kong
This study examined how shoe midsole hardness influenced plantar pressure in basketball-related movements. Twenty male university basketball players wore customized shoes with hard and soft midsoles (60 and 50 Shore C) to perform four movements: running, maximal forward sprinting, maximal 45° cutting and lay-up. Plantar loading was recorded using an in-shoe pressure measuring system, with peak pressure (PP) and pressure time integral (PTI) extracted from 10 plantar regions. Compared with hard shoes, subjects exhibited lower PP in one or more plantar regions when wearing the soft shoes across all tested movements (Ps < 0...
January 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/27834504/redistribution-of-mechanical-work-at-the-knee-and-ankle-joints-during-fast-running-in-minimalist-shoes
#8
Joel T Fuller, Jonathan D Buckley, Margarita D Tsiros, Nicholas A T Brown, Dominic Thewlis
CONTEXT: Minimalist shoes have been suggested as a way to alter running biomechanics to improve running performance and reduce injuries. However, to date, researchers have only considered the effect of minimalist shoes at slow running speeds. OBJECTIVE: To determine if runners change foot-strike pattern and alter the distribution of mechanical work at the knee and ankle joints when running at a fast speed in minimalist shoes compared with conventional running shoes...
October 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27825592/immediate-effects-of-foot-orthoses-on-pain-during-functional-tasks-in-people-with-patellofemoral-osteoarthritis-a-cross-over-proof-of-concept-study
#9
Natalie J Collins, Rana S Hinman, Hylton B Menz, Kay M Crossley
BACKGROUND: The purpose of the study was to determine whether prefabricated foot orthoses immediately reduce pain during functional tasks in people with patellofemoral osteoarthritis, compared to flat insoles and shoes alone. METHODS: Eighteen people with predominant lateral patellofemoral osteoarthritis (nine women; mean [SD] age 59 [10]years; body mass index 27.9 [3.2]kg/m(2)) performed functional tasks wearing running sandals, and then wearing foot orthoses and flat insoles (random order)...
November 4, 2016: Knee
https://www.readbyqxmd.com/read/27801995/in-her-shoes
#10
Sarah Andrus Gaines
No abstract text is available yet for this article.
February 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/27770687/the-effects-of-squatting-footwear-on-three-dimensional-lower-limb-and-spine-kinetics
#11
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/27762613/effect-of-vibram-fivefingers-minimalist-shoes-on-the-abductor-hallucis-muscle
#12
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
https://www.readbyqxmd.com/read/27692740/strength-training-for-plantar-fasciitis-and-the-intrinsic-foot-musculature-a-systematic-review
#13
REVIEW
Dean Huffer, Wayne Hing, Richard Newton, Mike Clair
The aim was to critically evaluate the literature investigating strength training interventions in the treatment of plantar fasciitis and improving intrinsic foot musculature strength. A search of PubMed, CINHAL, Web of Science, SPORTSDiscus, EBSCO Academic Search Complete and PEDRO using the search terms plantar fasciitis, strength, strengthening, resistance training, intrinsic flexor foot, resistance training. Seven articles met the eligibility criteria. Methodological quality was assessed using the modified Downs and Black checklist...
August 18, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27684951/response-to-the-letter-to-the-editor-for-article-the-effects-of-a-transition-to-minimalist-shoe-running-on-intrinsic-foot-muscle-size
#14
A W Johnson, J W Myrer, U H Mitchell, I Hunter, S T Ridge
No abstract text is available yet for this article.
October 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27684950/letter-to-the-editor-to-the-article-the-effects-of-a-transition-to-minimalist-shoe-running-on-intrinsic-foot-muscle-size
#15
Steven Robbins
No abstract text is available yet for this article.
October 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27684529/lower-limb-joint-stiffness-and-muscle-co-contraction-adaptations-to-instability-footwear-during-locomotion
#16
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...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27632879/achilles-tendon-adaptation-during-transition-to-a-minimalist-running-style
#17
Michael F Joseph, Katherine Histen, Julia Arntsen, Lauren L'hereux, Carmine Defeo, Derek Lockwood, Todd Scheer, Craig R Denegar
CONTEXT: Achilles tendons adapt to increased loading generated by long-term adoption of a minimalist shoe running style. There may be difference in the chronology and extent of adaptation between the sexes. OBJECTIVE: We sought to learn the chronology of Achilles tendon adaptations in female and male runners who transitioned to a minimalist running style through a planned, progressive, 12-week transition program. DESIGN: Prospective cohort study of well-trained, traditionally shod runners who transitioned to minimalist shoe running...
September 6, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27632859/achilles-tendon-properties-in-minimalist-and-traditionally-shod-runners
#18
Katherine Histen, Julia Arntsen, Lauren L'Hereux, James Heeren, Benjamin Wicki, Sterling Saint, Giselle Aerni, Craig R Denegar, Michael F Joseph
CONTEXT: Tendon adapts to load through alterations in its composition and mechanical properties. Mechanical adaptation to increased load often involves increases in cross sectional area, stiffness and modulus. Runners exhibit these adaptations. OBJECTIVE: We sought to determine if runners wearing minimalist shoes had larger and stiffer Achilles tendons (AT) compared to traditionally shod runners. DESIGN: Cross-sectional study of well-trained, traditionally and minimally shod runners...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27626955/are-muscle-activation-patterns-altered-during-shod-and-barefoot-running-with-a-forefoot-footfall-pattern
#19
Ulysses Fernandes Ervilha, Luis Mochizuki, Aylton Figueira, Joseph Hamill
This study aimed to investigate the activation of lower limb muscles during barefoot and shod running with forefoot or rearfoot footfall patterns. Nine habitually shod runners were asked to run straight for 20 m at self-selected speed. Ground reaction forces and thigh and shank muscle surface electromyographic (EMG) were recorded. EMG outcomes (EMG intensity [iEMG], latency between muscle activation and ground reaction force, latency between muscle pairs and co-activation index between muscle pairs) were compared across condition (shod and barefoot), running cycle epochs (pre-strike, strike, propulsion) and footfall (rearfoot and forefoot) by ANOVA...
September 14, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27617658/achilles-tendon-adaptation-during-transition-to-a-minimalist-running-style
#20
Michael F Joseph, Katherine Histen, Julia Arntsen, Lauren L'hereux, Carmine Defeo, Derek Lockwood, Todd Scheer, Craig R Denegar
CONTEXT: Achilles tendons adapt to increased loading generated by long-term adoption of a minimalist shoe running style. There may be difference in the chronology and extent of adaptation between the sexes. OBJECTIVE: We sought to learn the chronology of Achilles tendon adaptations in female and male runners who transitioned to a minimalist running style through a planned, progressive, 12-week transition program. DESIGN: Prospective cohort study of well-trained, traditionally shod runners who transitioned to minimalist shoe running...
September 6, 2016: Journal of Sport Rehabilitation
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