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Molina-Molina A, Delgado-García G, Richards J, Mercado-Palomino E, Soto-Hermoso VM, Latorre-Román PÁ. Increasing cadence with a metronome and running barefoot changes the sagittal kinematics of the lower limbs and trunk. J Sports Sci 2024:1-11. [PMID: 38602304 DOI: 10.1080/02640414.2024.2330818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 03/08/2024] [Indexed: 04/12/2024]
Abstract
The purpose was to compare two non-laboratory based running retraining programs on lower limb and trunk kinematics in recreational runners. Seventy recreational runners (30 ± 7.3 years old, 40% female) were randomised to a barefoot running group (BAR), a group wearing a digital metronome with their basal cadence increased by 10% (CAD), and a control group (CON). BAR and CAD groups included intervals from 15 to 40 min over 10 weeks and 3 days/week. 3D sagittal kinematics of the ankle, knee, hip, pelvis, and trunk were measured before and after the retraining program, at comfortable and high speeds. A 3 × 2 mixed ANOVA revealed that BAR and CAD groups increased knee and hip flexion at footstrike, increased peak hip flexion during stance and flight phase, decreased peak hip extension during flight phase, and increased anterior pelvic tilt at both speeds after retraining. In addition, BAR increased ankle plantar flexion at footstrike and increased anterior trunk tilt. Both retraining programs demonstrated significant moderate to large effect size changes in parameters that could reduce the mechanical risks of injury associated with excessive knee stress, which is of interest to coaches, runners and those prescribing rehabilitation and injury prevention programs.
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Affiliation(s)
- Alejandro Molina-Molina
- Campus Universitario, Universidad San Jorge, Villanueva de Gállego, Zaragoza, Spain
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | | | - Jim Richards
- Allied Health Research Unit, University of Central Lancashire, Preston, UK
| | - Elia Mercado-Palomino
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Víctor Manuel Soto-Hermoso
- Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
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2
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Connors G, Mathew J, Freeland E. Biomechanics and Injury Prevention for Barefoot/Minimalist Running. JBJS Rev 2023; 11:01874474-202311000-00001. [PMID: 37935052 DOI: 10.2106/jbjs.rvw.23.00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
» Biomechanical studies indicate that barefoot/minimalist running coincides with a transition to an anterior foot strike, lower vertical loading rates, higher cadences, less energy absorption at the knee joint, and higher energy absorption at the ankle joint.» The clinical outcome studies indicate improvement of previous injuries and equivocal injury rates in the barefoot/minimal-style running groups.» Foot strike pattern is more important than footwear regarding injury prevention and vertical loading rate.» Minimalist footwear places higher degrees of stress on the ankle joints and an increased injury rate when abruptly transitioning to barefoot running. Runners must weigh the risks and benefits and take caution to properly strengthen their feet and safely transition to minimalist running.
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Affiliation(s)
- Greg Connors
- Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Justin Mathew
- Temple University Hospital, Philadelphia, Pennsylvania
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3
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Plesek J, Hamill J, Freedman Silvernail J, Skypala J, Jandacka D. Age differences in running biomechanics during footstrike between preschool children and adults. J Sports Sci 2023; 40:2401-2411. [PMID: 36588173 DOI: 10.1080/02640414.2022.2162237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This study aimed to compare impact loading between two age groups of preschool children (3-4 and 5-6 years old) and one group of young adults representing mature level of running skill (n = 15 per group). Three-dimensional biomechanical data were collected during running barefoot, in minimalist and running shoes. A two-way mixed ANOVA was performed to assess age and footwear differences in vertical instantaneous loading rate (VILR). An interaction was found in VILR. Older (5-6) preschoolers had 30-31% lower VILR than younger (3-4) (p = 0.012, d = 1.02; p = 0.001, d = 1.18) and adults had 51-77% lower VILR than younger preschoolers (p = 0.001, d = 1.85; p = 0.001, d = 2.82) in minimalist and running shoes, respectively. Additionally, adults had lower VILR than older preschoolers in running shoes (p = 0.001, d = 2.68). No differences were found between older children and adults in barefoot and minimalist shoes. Loading decreased with increasing age, particularly in minimalist and running shoes. Unchanged cadence and running speed did not explain the decrease of VILR during preschool age. The explanation likely underlies in lower limb alignment during footstrike and developmental ontogenetic changes.
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Affiliation(s)
- Jan Plesek
- Department of Human Movement Studies, Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic
| | - Joseph Hamill
- Department of Human Movement Studies, Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic.,Department of Kinesiology, Biomechanics and Motor Control Laboratories, University of Massachusetts, Amherst, MA, USA
| | - Julia Freedman Silvernail
- Department of Human Movement Studies, Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic.,Department of Kinesiology and Nutrition Sciences, University of Nevada Las Vegas, Las Vegas, NV, USA
| | - Jiri Skypala
- Department of Human Movement Studies, Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic
| | - Daniel Jandacka
- Department of Human Movement Studies, Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic
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Zhang M, Cui J, Liu H. Effect of Flat Running Shoes on Hip Kinematics in Male Recreational Runners. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16473. [PMID: 36554352 PMCID: PMC9778694 DOI: 10.3390/ijerph192416473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Patellofemoral joint pain and iliotibial band syndrome are very common running-related injuries. Excessive contralateral pelvic drop, hip adduction, and hip internal rotation have been suggested to be associated with the two injuries. The purpose of this repeated measures and the cross-sectional study was to investigate the effect of flat running shoes on these kinematic variables compared with that of conventional running shoes with a 10 mm drop. Eighteen male recreational runners were recruited to run in flat shoes and conventional shoes with a 10 mm drop, in random order. Impact force data and lower extremity kinematics were synchronously obtained using two Kistler force plates and eight motion infrared cameras, whereas differences in the impact force and hip kinematics were compared using statistical parametric mapping. Regarding hip kinematics, the hip flexion (p = 0.004) and adduction angles (p = 0.004) decreased significantly at 30-70% and 62-85% of the stance phase, respectively, while wearing flat running shoes; the contralateral pelvic drop angle (p = 0.001) decreased significantly at 31-75% of the stance phase while wearing flat running shoes. The knee internal rotation angle (p = 0.035) decreased significantly at 8-17% of the stance phase while wearing flat running shoes compared with conventional running shoes. Given that these kinematic variables are associated with patellofemoral joint pain and iliotibial band syndrome, flat running shoes may have potential benefits for the prevention or treatment of knee injuries.
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Affiliation(s)
- Masen Zhang
- Biomechanics Laboratory, School of Sport Science, Beijing Sport University, Beijing 100084, China
| | - Jing Cui
- Biomechanics Laboratory, School of Sport Science, Beijing Sport University, Beijing 100084, China
| | - Hui Liu
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100084, China
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5
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Tinker M, Betten A, Morris S, Gibson N, Allison G, Ng L, Williams G, Chappell A. A comparison of the kinematics and kinetics of barefoot and shod running in children with cerebral palsy. Gait Posture 2022; 98:271-278. [PMID: 36215856 DOI: 10.1016/j.gaitpost.2022.09.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 09/19/2022] [Accepted: 09/24/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND The biomechanics of barefoot and shod running are different for typically developing children but unknown for children with cerebral palsy (CP). Such differences may have implications for injury and performance. AIMS The primary aims of this study were to compare the lower limb biomechanics of barefoot and shod running in children with CP, and to determine whether any differences were the same in GMFCS levels I and II. METHODS This cross-sectional study examined 38 children with CP (n = 24 (GMFCS) level I; n = 14 GMFCS II), running overground at 3 speeds (jog, run, sprint) in barefoot and shod conditions. Marker trajectories and force plate data were recorded, and lower limb kinematics, kinetics and spatiotemporal variables were derived. Differences between barefoot and shod running were analysed using linear mixed models. RESULTS For both GMFCS levels, barefoot running resulted in higher loading rates, but smaller impact peaks at all speeds. Barefoot running was associated with greater hip and knee power; less ankle dorsiflexion and hip flexion at initial contact, and less ankle and knee range of motion during stance, compared to shod running, at all speeds. Barefoot stride length was shortened, and cadence increased compared to shod during jogging and running but not sprinting. For GMFCS level I only, barefoot running involved a higher incidence of forefoot strike, greater ankle power generation and less hip range of motion during stance. SIGNIFICANCE Running barefoot may facilitate running performance by increasing power generation at the ankle in children with CP, GMFCS level I. Higher barefoot loading rates may have implications for performance and injury.
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Affiliation(s)
- M Tinker
- School of Allied Health, Curtin University, Bentley WA 6102, Australia
| | - A Betten
- School of Allied Health, Curtin University, Bentley WA 6102, Australia
| | - S Morris
- School of Allied Health, Curtin University, Bentley WA 6102, Australia
| | - N Gibson
- School of Allied Health, Curtin University, Bentley WA 6102, Australia; Perth Children's Hospital, Nedlands WA 6009, Australia
| | - G Allison
- School of Allied Health, Curtin University, Bentley WA 6102, Australia
| | - L Ng
- School of Allied Health, Curtin University, Bentley WA 6102, Australia
| | - G Williams
- School of Physiotherapy, University of Melbourne, Victoria 3010, Australia
| | - A Chappell
- School of Allied Health, Curtin University, Bentley WA 6102, Australia; Western Kids Health, Mt Hawthorn WA 6016, Australia.
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Kim HK, Mei Q, Gu Y, Mirjalili A, Fernandez J. Reduced joint reaction and muscle forces with barefoot running. Comput Methods Biomech Biomed Engin 2021; 24:1263-1273. [PMID: 33522848 DOI: 10.1080/10255842.2021.1880572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Barefoot running has been associated with lowered joint loading, but it remains unclear whether the biomechanical benefits are evident after mid-distance running. A musculoskeletal model was adopted for estimating lower limb joint loading for barefoot (n = 10) versus shod (n = 10) 5 km running. The barefoot group reduced peak joint reaction force at the hip and knee, and presented muscle force reductions compared to shod controls with significant group effects and interaction effects (p < .05). These changes were primarily group effects as time point effects were not significant. These findings should be considered when designing barefoot running shoes, running programmes, and injury prevention programmes.
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Affiliation(s)
- Hyun Kyung Kim
- Kinesiology Department, Iowa State University, Ames, Iowa, USA.,Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Qichang Mei
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.,Faculty of Sport Sciences, Ningbo University, Ningbo, China.,Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China
| | - Yaodong Gu
- Faculty of Sport Sciences, Ningbo University, Ningbo, China.,Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China
| | - Ali Mirjalili
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Justin Fernandez
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.,Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China.,Department of Engineering Science, Faculty of Engineering, University of Auckland, Auckland, New Zealand
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7
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Jahn VDS, Correia CK, Dell’Antonio E, Mochizuki L, Ruschel C. BIOMECHANICS OF SHOD AND BAREFOOT RUNNING: A LITERATURE REVIEW. REV BRAS MED ESPORTE 2020. [DOI: 10.1590/1517-869220202606219320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT This study aims to analyze and summarize the biomechanical (kinematics, kinetics and neuromuscular) differences between shod and barefoot running, through a literature review. Searches were conducted for complete articles published between 2013 and November 2018 in the Web of Science, PubMed, Scopus and SPORTdiscus databases. The search terms used were Biomechanics, Kinetics, Kinematics, Electromyography, “Surface Electromyography”; and Unshod, Barefoot, Barefeet and Running. The search resulted in 687 articles; after excluding duplicates and selecting by title, abstract and full text, 40 articles were included in the review. The results show that there are important differences in the biomechanics of running when shod or barefoot. In general, studies indicate that in barefoot running: a) individuals present forefoot or midfoot foot strike patterns, while in shod running the typical pattern is the rearfoot strike; (b) greater cadence and shorter stride length are observed; and (c) there is greater knee flexion, lower peak vertical ground reaction force and greater activation of the medial gastrocnemius. In addition, barefoot runners contact the ground with greater plantar flexion, possibly as a strategy to reduce impact when stepping without footwear. These differences, as well as runners’ individual characteristics, should be considered in the prescription of the barefoot running, in order to minimize injuries resulting from the practice. Level of Evidence II; Review.
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Abstract
Long-distance running has become increasingly popular during the past decades. Many running patients pose questions to their orthopaedic surgeons regarding risks, benefits, and running techniques. This article identifies 11 running-related questions that patients may ask and provides information to help answer those questions. This review discusses data on the health benefits of running, common running injuries, the relationship between running and osteoarthritis, recommendations regarding running after orthopaedic surgery, running shoes, and other questions that may arise when treating the running athlete.
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Barcellona MG, Buckley L, Palmer LJM, Ormond RM, Owen G, Watson DJ, Woledge R, Newham D. The effect of minimalist footwear and instruction on running: an observational study. BMJ Open Sport Exerc Med 2017; 3:e000160. [PMID: 28761694 PMCID: PMC5530131 DOI: 10.1136/bmjsem-2016-000160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2017] [Indexed: 11/28/2022] Open
Abstract
Background It is not known whether the effects on altered running style which are attributed to minimalist footwear can be achieved by verbal instructions in standard running shoes (SRS). Aim To explore the effect of Vibram FiveFingers (VFF) versus SRS plus running instruction on lower extremity spatiotemporal parameters and lower limb joint kinematics. Methods 35 healthy subjects (mean=30 years, 18 females) were assessed on two occasions with 3D motion analysis. At each session subjects ran on a treadmill (3.58 m/s) for 2 min in either VFF or SRS (randomised order); with and without running instruction. Differences between spatiotemporal parameters and lower limb joint kinematics between conditions were assessed using a 2x2 repeated-measures ANOVA. Results Wearing VFF significantly increased cadence (p<0.001) and reduced stride length (p<0.01). Prior to initial contact, both instruction and VFF significantly increased foot (p<0.001 and p=0.02, respectively) and ankle (p<0.001 and p=0.02, respectively) plantarflexion, while wearing VFF significantly increased knee extension (p=0.04). At initial contact, instruction significantly increased knee flexion (p=0.04), and foot (p=0.001) and ankle (p=0.03) plantarflexion. At mid-stance and toe-off, instruction significantly increased knee flexion (p=0.048 and p<0.001, respectively) and foot plantarflexion (p<0.001 and p=0.01, respectively). Instruction had a greater effect on increasing knee flexion (p=0.007) and plantarflexion angle (p<0.001) when subjects wore SRS and VFF, respectively. Conclusion Alterations in spatiotemporal parameters observed when running in VFF are likely to be attributable to the minimalist footwear. However, the kinematic adaptations observed following instruction suggests that changes in joint angles previously attributed to minimalist footwear alone may be similarly achieved with instruction.
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Affiliation(s)
- Massimo Giuseppe Barcellona
- Division of Health & Social Care Research, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Linda Buckley
- Department of Physiotherapy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Lisa J M Palmer
- Department of Physiotherapy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Roisin M Ormond
- Department of Physiotherapy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Gwawr Owen
- Department of Physiotherapy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Daniel J Watson
- Department of Physiotherapy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Roger Woledge
- Centre of Human & Aerospace Physiological Sciences, Faculty of Health & Life Sciences, King's College London, London, UK
| | - Di Newham
- Centre of Human & Aerospace Physiological Sciences, Faculty of Health & Life Sciences, King's College London, London, UK
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10
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Azevedo APDS, Mezêncio B, Amadio AC, Serrão JC. 16 Weeks of Progressive Barefoot Running Training Changes Impact Force and Muscle Activation in Habitual Shod Runners. PLoS One 2016; 11:e0167234. [PMID: 27907069 PMCID: PMC5132300 DOI: 10.1371/journal.pone.0167234] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 11/08/2016] [Indexed: 12/03/2022] Open
Abstract
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. Tests consisted of running on instrumented treadmill at 9 km/h, for 10 minutes in each experimental condition. Nine data acquisitions (10 s) of vertical ground reaction force (VGRF) and electromyographic (EMG) signal were conducted in each experimental condition for each test. BF training was effective to alter VGRF and EMG parameters of running in habitual shod runners, regardless of footwear condition (SH or BF). The magnitude of first peak of VGRF (Fy1) and the impulse of the first 50 ms decreased after training for BF and SH (p<0.01). The activation reduced from PRE to POST training for four muscles in BF running (p<0.001), whereas only muscle gastrocnemius lateralis decreased significantly its activation (p<0.01) in SH running. A 16-week progressive barefoot running training seems to be an effective training strategy to reduce impact force, improve shock attenuation and to decrease muscle activation intensity, not only in BF running, but also in SH running, although BF condition seems to be more influenced by BF training.
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Affiliation(s)
- Ana Paula da Silva Azevedo
- Laboratory of Biomechanics, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
- * E-mail:
| | - Bruno Mezêncio
- Laboratory of Biomechanics, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Alberto Carlos Amadio
- Laboratory of Biomechanics, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Julio Cerca Serrão
- Laboratory of Biomechanics, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
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Abstract
Study Design Controlled laboratory study. Background Body-weight-support (BWS) running is increasing in popularity, despite limited evidence of its effects on running mechanics. Objectives To determine the effect of increasing BWS on lower-limb biomechanics during lower-body positive-pressure (LBPP) treadmill running. Methods Fourteen male recreational runners completed 15 randomized trials on an LBPP treadmill at 5 levels of BWS and 3 velocities (1-minute trials with 3-minute recovery). Knee and ankle kinematic data were recorded continuously via electrogoniometry. Synchronous in-shoe plantar-pressure data identified stride onset and quantified foot-segment forces. Data were recorded during the final 30 seconds of each trial and averaged over 10 consecutive stride cycles. Results Higher levels of BWS resulted in significantly (P<.001) increased stride duration, reduced stride frequency, and reduced ground contact time (GCT). In addition, normalized GCT (GCT/stride duration) was significantly reduced (P<.001), indicating increased flight time. Increasing BWS resulted in significant reductions (P<.001) in peak knee flexion and dorsiflexion and reduced overall knee and ankle range of motion during the stance phase. Conclusion Running on an LBPP treadmill alters lower-limb kinematics, resulting in reduced ankle and knee joint range of motion. In addition, increased BWS alters stride characteristics, resulting in shorter GCT and longer flight time. Clinicians must be aware of lower-limb kinematic alterations to provide safe and effective parameters for rehabilitation involving LBPP treadmills. J Orthop Sports Phys Ther 2016;46(9):784-793. doi:10.2519/jospt.2016.6503.
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12
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Barefoot and minimalist running: The current understanding of the evidence. REVISTA ESPAÑOLA DE PODOLOGÍA 2016. [DOI: 10.1016/j.repod.2016.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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13
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Payne C. Carrera descalza y minimalista, una comprensión actual de la evidencia. REVISTA ESPAÑOLA DE PODOLOGÍA 2016. [DOI: 10.1016/j.repod.2016.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Strauts J, Vanicek N, Halaki M. Acute changes in kinematic and muscle activity patterns in habitually shod rearfoot strikers while running barefoot. J Sports Sci 2015; 34:75-87. [PMID: 25908260 DOI: 10.1080/02640414.2015.1034756] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The aim of this study was to observe changes in the kinematics and muscle activities when barefoot running was initially adopted by six habitually shod, recreational rearfoot striking runners. Participants ran on a treadmill shod for 5 min, completed 3 × 10-min intervals of barefoot running and then completed a final minute of shod running at a self-selected pace. Dependent variables (speed, joint angles at foot-contact, joint range of motion (ROM), mean and peak electromyography (EMG) activity) were compared across conditions using repeated measures ANOVAs. Anterior pelvic tilt and hip flexion significantly decreased during barefoot conditions at foot contact. The ROM for the trunk, pelvis, knee and ankle angles decreased during the barefoot conditions. Mean EMG activity was reduced for biceps femoris, gastrocnemius lateralis and tibialis anterior during barefoot running. The peak activity across the running cycle decreased in biceps femoris, vastus medialis, gastrocnemius medialis and tibialis anterior during barefoot running. During barefoot running, tibialis anterior activity significantly decreased during the pre-activation and initial contact phases; gastrocnemius lateralis and medialis activity significantly decreased during the push-off phase. Barefoot running caused immediate biomechanical and neuromuscular adaptations at the hip and pelvis, which persisted when the runners donned their shoes, indicating that some learning had occurred during an initial short bout of barefoot running.
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Affiliation(s)
- Janina Strauts
- a Discipline of Exercise and Sport Science, Faculty of Health Sciences , University of Sydney , Australia
| | - Natalie Vanicek
- a Discipline of Exercise and Sport Science, Faculty of Health Sciences , University of Sydney , Australia.,b Department of Sport, Health & Exercise Science , University of Hull , United Kingdom
| | - Mark Halaki
- a Discipline of Exercise and Sport Science, Faculty of Health Sciences , University of Sydney , Australia
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Gingrich S, Harrast M. Injury Prevention in Novice Runners: An Evidence-Based Approach and Literature Review. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2015. [DOI: 10.1007/s40141-014-0075-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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