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Kim HK, Mirjalili SA, Zhang Y, Xiang L, Gu Y, Fernandez J. Effect of gender and running experience on lower limb biomechanics following 5 km barefoot running. Sports Biomech 2024; 23:95-108. [PMID: 33428537 DOI: 10.1080/14763141.2020.1829021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 09/21/2020] [Indexed: 10/22/2022]
Abstract
Barefoot running has been increasing in popularity, yet there is a gap in understanding concerning the biomechanics of mid-distance barefoot running, especially between genders and runners of different running-experience levels. This study examines the effects of running-experience, gender, and their interaction on running biomechanics following 5 km barefoot running. Before and after a 5 km run, three-dimensional kinematics and kinetics of the lower limb joints and plantar pressure during barefoot running were collected from 20 participants. Participants were stratified by their running-experience levels (novice and marathon-experienced) and gender. This study revealed significant gender effects on lower limb biomechanics following a 5 km barefoot run. Increased plantar pressure under the lateral aspect of the foot was observed in the female cohort, while the male cohort exhibited reduced plantar pressure under the lateral heel. This study suggests that modified lower limb running biomechanics and modified lateral foot loading after 5 km barefoot running may create a different foot loading environment for female and male runners that should be accommodated in barefoot runningand minimalist shoe design.
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Affiliation(s)
- Hyun Kyung Kim
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Seyed Ali Mirjalili
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Yanxin Zhang
- Department of Exercise Sciences, University of Auckland, Auckland, New Zealand
| | - Liangliang Xiang
- 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
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - Justin Fernandez
- Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
- Department of Engineering Science, University of Auckland, Auckland, New Zealand
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Malki A, van Kouwenhove L, Verkerke GJ, Dekker R, Hijmans JM. Effects of heel apex position, apex angle and rocker radius on plantar pressure in the heel region. Heliyon 2023; 9:e21036. [PMID: 37942153 PMCID: PMC10628656 DOI: 10.1016/j.heliyon.2023.e21036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023] Open
Abstract
Introduction Rocker shoes and insoles are used to prevent diabetic foot ulcers in persons with diabetes mellitus and loss of protective sensation, by reducing the plantar pressure in regions with high pressure values (>200 kPa) (e.g., hallux, metatarsal heads and heel). However, forefoot rocker shoes that reduce pressure in the forefoot inadvertently increase pressure in the heel. No studies focused on mitigating the negative effects on heel pressure by optimizing the heel rocker midsole, yet. Therefore, we analyze the effect of different heel rocker parameters on the heel plantar pressure. Methods In-shoe pressure was measured, while 10 healthy participants walked with control shoe and 10 different heel rocker settings. Peak pressure was determined in 7 heel masks, for all shoes. Generalized estimating equations was performed to test the effect of the different shoes on the peak pressure in the different heel masks. Results In the proximal heel, a rocker shoe with distal apex position, small rocker radius and large apex angle (100°), shows the largest significant decrease in peak pressure compared to rocker shoes with more proximally located apex positions. In the midheel and distal heel, the same rocker shoes or any other rocker shoes, analyzed in this study, do not reduce the PP more than 2 % compared to the control shoe. For the midheel and distal heel region with high pressure values (>200 kPa), rocker shoes alone are not the correct option to reduce the pressure to below 200 kPa. Conclusion When using rocker shoes to reduce the pressure in the forefoot, a heel rocker midsole with a distal apex position, small rocker radius and apex angle of 100°, mitigates the negative effects on proximal heel pressure. For the midheel and distal heel, other footwear options as an addition or instead of rocker shoes are needed to reduce the pressure.
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Affiliation(s)
- Athra Malki
- Department of Rehabilitation Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Laurens van Kouwenhove
- Department of Rehabilitation Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Gijsbertus J. Verkerke
- Department of Rehabilitation Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Biomechanical Engineering, University of Twente, Enschede, Overijssel, the Netherlands
| | - Rienk Dekker
- Department of Rehabilitation Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Juha M. Hijmans
- Department of Rehabilitation Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Ferro-Sánchez A, Martín-Castellanos A, de la Rubia A, García-Aliaga A, Hontoria-Galán M, Marquina M. An Analysis of Running Impact on Different Surfaces for Injury Prevention. Int J Environ Res Public Health 2023; 20:6405. [PMID: 37510637 PMCID: PMC10378879 DOI: 10.3390/ijerph20146405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/19/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023]
Abstract
The impact that occurs on the runner's foot when it lands on the ground depends on numerous factors: footwear, running technique, foot strike and landing pattern, among others. However, the surface is a decisive factor that can be selected by the runner to improve their sports practice, thereby avoiding injuries. This study aimed to assess the number and magnitude of accelerations in impact (produced by the runner when their foot strikes the ground) on three different surfaces (grass, synthetic track, and concrete) in order to know how to prevent injuries. Thirty amateur runners (age 22.6 ± 2.43 years) participated in the study. They had to run consecutively on three different surfaces at the same speed, with a three axis-accelerometer placed on the sacrum and wearing their own shoes. The results showed that the running impacts differed based on the type of surface. Higher mean acceleration (MA) and mean peak acceleration (PA) in the impacts were observed on concrete compared to the other two surfaces. There were small differences for MA: 1.35 ± 0.1 g (concrete) vs. 1.30 ± 0.1 g (synthetic track) SD: 0.43 (0.33, 0.54) and 1.30 ± 0.1 g (grass) SD: 0.36 (0.25, 0.46), and small differences for PA: 3.90 ± 0.55 g (concrete) vs. 3.68 ± 0.45 g (synthetic track) SD 0.42 (0.21, 0.64) and 3.76 ± 0.48 g (grass) SD 0.27 (0.05, 0.48), implying that greater impacts were produced on concrete compared to synthetic track and grass. The number of peaks of 4 to 5 g of total acceleration was greater for concrete, showing small differences from synthetic track: SD 0.23 (-0.45, 0.9). Additionally, the number of steps was higher on synthetic track (34.90 ± 2.67), and small differences were shown compared with concrete (33.37 ± 2.95) SD 0.30 (-0.25, 0.85) and with grass (35.60 ± 3.94) SD 0.36 (-0.19, 0.91). These results may indicate a change in technique based on the terrain. Given the increasing popularity of running, participants must be trained to withstand the accelerations in impact that occur on different surfaces in order to prevent injuries.
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Affiliation(s)
- Amelia Ferro-Sánchez
- Sport and Training Research Group, Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
| | - Adrián Martín-Castellanos
- Sport and Training Research Group, Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
- Department of Physical Activity and Sports Science, Alfonso X El Sabio University (UAX), 28691 Madrid, Spain
| | - Alfonso de la Rubia
- Sport and Training Research Group, Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
| | - Abraham García-Aliaga
- Sport and Training Research Group, Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
| | - Mónica Hontoria-Galán
- Sport and Training Research Group, Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
| | - Moisés Marquina
- Sport and Training Research Group, Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
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Ramsey C, Peterson B, Hébert-Losier K. Measurement and reporting of footwear characteristics in running biomechanics: A systematic search and narrative synthesis of contemporary research methods. Sports Biomech 2023; 22:351-387. [PMID: 36214324 DOI: 10.1080/14763141.2022.2125431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
This review aimed to synthesise the methods for assessing and reporting footwear characteristics among studies evaluating the effect of footwear on running biomechanics. Electronic searches of Scopus®, EBSCO, PubMed®, ScienceDirect®, and Web of Science® were performed to identify original research articles of the effect of running footwear on running biomechanics published from 1st January 2015 to 7th October 2020. Risk of bias among included studies was not assessed. Results were presented via narrative synthesis. Eligible studies compared the effect of two or more footwear conditions in adult runners on a biomechanical parameter. Eighty-seven articles were included and data from 242 individual footwear were extracted. Predominantly, studies reported footwear taxonomy (i.e., classification) and manufacturer information, however omitted detail regarding the technical specifications of running footwear and did not use validated footwear reporting tools. There is inconsistency among contemporary studies in the methods by which footwear characteristics are assessed and reported. These findings point towards a need for consensus regarding the reporting of these characteristics within biomechanical studies to facilitate the conduct of systematic reviews and meta-analyses pertaining to the effect of running footwear on running biomechanics.
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Affiliation(s)
- Codi Ramsey
- Institute of Sport , Exercise and Health, Otago Polytechnic, Dunedin, New Zealand
| | - Benjamin Peterson
- Department of Podiatry, School of Health, Medical and Applied Sciences, CQUniversity, Rockhampton, QLD, Australia
| | - Kim Hébert-Losier
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
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Jandova S, Mendricky R. Benefits of 3D Printed and Customized Anatomical Footwear Insoles for Plantar Pressure Distribution. 3D Print Addit Manuf 2022; 9:547-556. [PMID: 36660748 PMCID: PMC9831565 DOI: 10.1089/3dp.2021.0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
During walking, the foot is in direct contact with the insole of the footwear, and it affects the biomechanics of the whole human body. The aim of this study was to compare the plantar pressure distribution while walking in the same footwear in three different situations: with an original footwear insole, with an ethylene-vinyl acetate customized insole, and with a 3D printed anatomical insole to find out the optimal insoles for people with a normal, flat, and high arched foot according to the plantar pressure relief. Fifty-one adults were grouped into three groups (normal foot, flat foot, and high arched foot geometry). The feet of the randomly selected subjects from each group were scanned, and the insoles were designed on the basis of the foot model. These models were then used for the 3D printing. The plantar pressure distribution was observed when walking in all three different insole types for each of the three subjects with the different foot types. The peak pressure values in the forefoot, midfoot, and rearfoot and contact area were compared. The results of the study show that customized insoles influence the plantar pressure distribution mainly in people with a flat foot or with a high arched foot deformity. This influence is dependent on the type of the customized insoles, mainly in people with a high arched foot. People with a flat foot deformity have a similar plantar pressure relief in the thermoplastic insoles as those in the 3D printed insoles, and both these customized insoles can be used as a supplementary therapeutic instrument. Our study showed that the biggest attention, with regards to customizing insoles, is required by people with a high arched foot deformity, and we recommend that these people use fully customized insoles which can be guaranteed with 3D printing techniques.
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Affiliation(s)
- Sona Jandova
- Department of Applied Mechanics, Faculty of Mechanical Engineering, Technical University of Liberec, Liberec, Czech Republic
- Department of Physical Education, Faculty of Education, Charles University, Prague, Czech Republic
| | - Radomir Mendricky
- Department of Manufacturing Systems and Automation, Faculty of Mechanical Engineering, Technical University of Liberec, Liberec, Czech Republic
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Cho YJ, Lee DH, Kang HW, Kim DY, Lee DO, Lee DY. Pressure Properties of Three Different Types of Prefabricated Insoles Related to Plantar Pressure in Asymptomatic Men. Clin Orthop Surg 2022; 14:622-630. [PMID: 36518933 PMCID: PMC9715923 DOI: 10.4055/cios20280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND In clinical fields, many types of insoles are used to not only realign movement patterns, but also treat pressure-related foot diseases. However, the characteristics of and plantar pressure in each type of insole are still unclear. Therefore, the aim of this study was to validate the plantar pressure-relieving effect of three representative types of insoles (metatarsal padding insole [MPI], lateral heel wedge insole [LHI], and arch support insole [ASI]) in asymptomatic men. METHODS A total of 35 feet of 35 asymptomatic men with a mean age of 23.4 ± 2.0 years were included. Pedobarographic data were evaluated by dividing the foot into eight designated regions to compare the three types of insoles. Peak plantar pressure (PPP) and pressure time integral (PTI) were assessed using the Pedar-X system. A repeated measures analysis of variance was used for statistical analyses. RESULTS In the hallux region, there was no statistically significant difference. MPI showed highest pressure in the 2nd-5th toe and midfoot region, but lowest in the central and lateral forefoot regions. Meanwhile, ASI showed highest pressure in the medial forefoot region but lowest in the lateral heel region. Lastly, pressure in the lateral heel region was highest in LHI. Overall, results of PTI were similar to those of PPP. CONCLUSIONS This study demonstrated that the three types of insole each could reduce and redistribute pressure of specific part of the foot to help select an appropriate insole for each purpose.
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Affiliation(s)
- Yun Jae Cho
- Department of Orthopedic Surgery, Han-il General Hospital, Seoul, Korea
| | - Dong Hyun Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Ho Won Kang
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dae-Yoo Kim
- Department of Orthopedic Surgery, Inje University Busan Paik Hospital, Busan, Korea
| | - Dong Oh Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dong Yeon Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
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Cheng J, Zeng Q, Lai J, Zhang X. Effects of arch support doses on the center of pressure and pressure distribution of running using statistical parametric mapping. Front Bioeng Biotechnol 2022; 10:1051747. [DOI: 10.3389/fbioe.2022.1051747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/09/2022] [Indexed: 11/22/2022] Open
Abstract
Insoles with an arch support have been used to address biomechanical risk factors of running. However, the relationship between the dose of support and running biomechanics remains unclear. The purpose of this study was to determine the effects of changing arch support doses on the center of pressure (COP) and pressure mapping using statistical parametric mapping (SPM). Nine arch support variations (3 heights * 3 widths) and a flat insole control were tested on fifteen healthy recreational runners using a 1-m Footscan pressure plate. The medial-lateral COP (COPML) coordinates and the total COP velocity (COPVtotal) were calculated throughout the entirety of stance. One-dimensional and two-dimensional SPM were performed to assess differences between the arch support and control conditions for time series of COP variables and pressure mapping at a pixel level, respectively. Two-way ANOVAs were performed to test the main effect of the arch support height and width, and their interaction on the peak values of the COPVtotal. The results showed that the COPVtotal during the forefoot contact and forefoot push off phases was increased by arch supports, while the COP medial-lateral coordinates remained unchanged. There was a dose-response effect of the arch support height on peak values of the COPVtotal, with a higher support increasing the first and third valleys but decreasing the third peak of the COPVtotal. Meanwhile, a higher arch support height shifted the peak pressure from the medial forefoot and rearfoot to the medial arch. It is concluded that changing arch support doses, primarily the height, systematically altered the COP velocities and peak plantar pressure at a pixel level during running. When assessing subtle modifications in the arch support, the COP velocity was a more sensitive variable than COP coordinates. SPM provides a high-resolution view of pressure comparisons, and is recommended for future insole/footwear investigations to better understand the underlying mechanisms and improve insole design.
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Song Y, Shao E, Bíró I, Baker JS, Gu Y. Finite element modelling for footwear design and evaluation: A systematic scoping review. Heliyon 2022; 8:e10940. [PMID: 36247144 PMCID: PMC9563159 DOI: 10.1016/j.heliyon.2022.e10940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/04/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022] Open
Abstract
Finite element modelling has become an efficient tool for an in-depth understanding of the foot, footwear biomechanics and footwear optimization. The aim of this paper was to provide an updated overview in relation to the footwear finite element (FE) analysis published since 2000. The paper will attempt to outline the main challenges and research gaps that need confronting in the further development of realistic and accurate models for clinical and industrial applications. English databases of the Web of Science and PubMed were used to search (‘finite element’ OR ‘FEA’ OR ‘computational model’) AND (‘shoe’ OR ‘footwear’) until 16 December 2021. Articles that conducted FE analyses on the whole foot and footwear structures were included in this review. Twelve articles met the eligibility criteria, and were grouped into three categories for further analysis, (1) finite element modelling of the foot and high-heeled shoes; (2) finite element modelling of the foot and boot; (3) finite element modelling of the foot and sports shoe. Even though most of the existing foot-shoe FE analyses were performed under certain simplifications and assumptions, they have provided essential contributions in identifying the mechanical response of the foot in casual or athletic footwear. Further to this, the results have provided information in relation to optimizing footwear design to enhance functional performance. Nevertheless, further simulations still present several challenges, including reliable data information for geometry reconstruction, the balance between accurate details and computational cost, accurate representations of material properties, realistic boundary and loading conditions, and thorough model validation. In addition, some research gaps in terms of the coverage of footwear design, the consideration of insole/orthosis and socks, and the internal and external validity of the FE design should be fully covered.
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Affiliation(s)
- Yang Song
- Faculty of Sports Science, Ningbo University, Ningbo, China,Doctoral School on Safety and Security Sciences, Óbuda University, Budapest, Hungary,Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Enze Shao
- Faculty of Sports Science, Ningbo University, Ningbo, China
| | - István Bíró
- Doctoral School on Safety and Security Sciences, Óbuda University, Budapest, Hungary,Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Julien Steven Baker
- Centre for Health and Exercise Science Research, Department of Sport, Physical Education and Health, Hong Kong Baptist University, Hong Kong, China
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, China,Corresponding author.
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Kusagawa Y, Kurihara T, Maeo S, Sugiyama T, Kanehisa H, Isaka T. Associations of muscle volume of individual human plantar intrinsic foot muscles with morphological profiles of the foot. J Anat 2022; 241:1336-1343. [PMID: 36001459 PMCID: PMC9644943 DOI: 10.1111/joa.13753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/21/2022] [Accepted: 08/11/2022] [Indexed: 01/17/2023] Open
Abstract
Human plantar intrinsic foot muscles consist of 10 muscles that originate and insert within the sole of the foot. It is known that the anatomical cross‐sectional area (ACSA) and muscle thickness of two plantar intrinsic foot muscles, the flexor hallucis brevis (FHB) and abductor hallucis (ABH), associate with morphological parameters of the foot, such as total and truncated foot length and navicular height. However, it is unclear how the size for each of the plantar intrinsic foot muscles associates with various morphological profiles of the foot. This study aimed to elucidate this subject. By using magnetic resonance imaging (MRI), serial images of the right foot were obtained in 13 young adult men without foot deformities. From the obtained MR images, ACSA for each of the individual plantar intrinsic foot muscles was analyzed along the foot length, and then its muscle volume (MV) was calculated. The analyzed muscles were the abductor digiti minimi (ABDM), ABH, adductor hallucis oblique head (ADDH‐OH), adductor hallucis transverse head (ADDH‐TH), flexor digitorum brevis (FDB), FHB, and quadratus plantae (QP). Furthermore, MV of the whole plantar intrinsic foot muscle (WHOLE) was defined as the total MVs of all the analyzed muscles. As morphological parameters, total foot length, truncated foot length, forefoot width, ball circumference, instep circumference, navicular height, great toe eversion angle, and little toe inversion angle were measured using a laser three‐dimensional foot scanner in standing and sitting conditions. In addition, navicular drop (ND) and normalized truncated navicular height (NTNH) were also calculated as medial longitudinal arch (MLA) height indices. The MV of WHOLE was significantly associated with the forefoot width, ball circumference, and instep circumference (r = 0.647–0.711, p = 0.006–0.013). Positive correlations were found between the forefoot width and MV of FHB, FDB, and QP (r = 0.564–0.653, p = 0.015–0.045), between the ball circumference and MV of QP (r = 0.559, p = 0.047), between the instep circumference and MV of FHB (r = 0.609, p = 0.027), and between the little toe inversion angle and MV of QP (r = 0.570, p = 0.042). The MVs of ABH, ABDM, and ADDH‐OH were not significantly correlated with any morphological parameters of the foot. Similarly, no significant correlations were found between MV of each muscle and either of the MLA height indices (ND and NTNH). Thus, the current results indicate that forefoot width and circumferential parameters (instep and ball circumference), not MLA height, associate with the size of the whole plantar intrinsic foot muscles, especially those specialized in toe flexion (FHB, FDB, and QP).
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Affiliation(s)
- Yuki Kusagawa
- Graduate School of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Toshiyuki Kurihara
- Faculty of Science and Engineering, Kokushikan University, Setagaya, Japan
| | - Sumiaki Maeo
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Takashi Sugiyama
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Hiroaki Kanehisa
- National Institute of Fitness and Sports in Kanoya, Kanoya, Japan
| | - Tadao Isaka
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
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Andreyo E, Unverzagt C, Schoenfeld BJ. Influence of Minimalist Footwear on Running Performance and Injury. Strength Cond J 2022. [DOI: 10.1519/ssc.0000000000000661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cho YJ, Lee DW, Shin HS, Hwang YB, Lee DO, Kim DY, Lee DY. Change of In-Shoe Plantar Pressure According to Types of Shoes (Flat Shoes, Running Shoes, and High Heels). Clin Orthop Surg 2022; 14:281-288. [PMID: 35685969 PMCID: PMC9152888 DOI: 10.4055/cios20260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/21/2021] [Accepted: 12/27/2021] [Indexed: 11/22/2022] Open
Abstract
Background The type of footwear is one of several factors that affect foot pressure. Despite its usefulness in identifying pathology and preventing and treating foot-related diseases, the type of shoes has been investigated and compared in only a few studies. This study aimed to investigate differences in plantar pressure, induced by flat, running, and high-heeled shoes in healthy, young women. Methods A total of 27 healthy women (27 feet) with a mean age of 21.5 ± 2.03 years were included in this study. Based on demographic data, radiologic measurements, clinical scores, temporal gait parameters, and kinematic parameters of gait, we confirmed the participants had normal feet. Then, pedobarographic data were measured by dividing each foot into seven regions to compare the three types of shoes. Peak plantar pressure and pressure-time integral were calculated using the Pedar-X system. The one-way analysis of variance and the Kruskal-Wallis test with Mann Whitney U-test were used for statistical analyses. Results Regarding the 7 regions of the foot, flat shoes resulted in a significantly higher pressure than running shoes in the hallux and lesser toes and the highest pressure in the metatarsal head (MTH) 3-5 and the hindfoot. In contrast, in the MTH 1 and MTH 2 regions, the high-heeled shoes had the highest measured pressure, followed by the flat shoes. Lastly, there was no high pressure in running shoes in any region except for the midfoot compared to the other shoes. Conclusions It can be inferred from our findings that flat and high-heeled shoes can generate a considerable burden on specific parts of the foot, which will aid in choosing appropriate shoes. Also, wearing running shoes places less burden on the overall foot.
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Affiliation(s)
- Yun Jae Cho
- Department of Orthopedic Surgery, Han-il General Hospital, Seoul, Korea
| | - Dong-Woo Lee
- Department of Orthopedic Surgery, Han-il General Hospital, Seoul, Korea
| | - Hyuck Soo Shin
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Yoon Bin Hwang
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dong Oh Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dae-Yoo Kim
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dong Yeon Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
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Xiang L, Gu Y, Mei Q, Wang A, Shim V, Fernandez J. Automatic Classification of Barefoot and Shod Populations Based on the Foot Metrics and Plantar Pressure Patterns. Front Bioeng Biotechnol 2022; 10:843204. [PMID: 35402419 PMCID: PMC8984198 DOI: 10.3389/fbioe.2022.843204] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
The human being’s locomotion under the barefoot condition enables normal foot function and lower limb biomechanical performance from a biological evolution perspective. No study has demonstrated the specific differences between habitually barefoot and shod cohorts based on foot morphology and dynamic plantar pressure during walking and running. The present study aimed to assess and classify foot metrics and dynamic plantar pressure patterns of barefoot and shod people via machine learning algorithms. One hundred and forty-six age-matched barefoot (n = 78) and shod (n = 68) participants were recruited for this study. Gaussian Naïve Bayes were selected to identify foot morphology differences between unshod and shod cohorts. The support vector machine (SVM) classifiers based on the principal component analysis (PCA) feature extraction and recursive feature elimination (RFE) feature selection methods were utilized to separate and classify the barefoot and shod populations via walking and running plantar pressure parameters. Peak pressure in the M1-M5 regions during running was significantly higher for the shod participants, increasing 34.8, 37.3, 29.2, 31.7, and 40.1%, respectively. The test accuracy of the Gaussian Naïve Bayes model achieved an accuracy of 93%. The mean 10-fold cross-validation scores were 0.98 and 0.96 for the RFE- and PCA-based SVM models, and both feature extract-based and feature select-based SVM models achieved an accuracy of 95%. The foot shape, especially the forefoot region, was shown to be a valuable classifier of shod and unshod groups. Dynamic pressure patterns during running contribute most to the identification of the two cohorts, especially the forefoot region.
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Affiliation(s)
- Liangliang Xiang
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- *Correspondence: Yaodong Gu,
| | - Qichang Mei
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Alan Wang
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Vickie Shim
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Justin Fernandez
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Engineering Science, The University of Auckland, Auckland, New Zealand
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Yu P, He Y, Gu Y, Liu Y, Xuan R, Fernandez J. Acute Effects of Heel-to-Toe Drop and Speed on Running Biomechanics and Strike Pattern in Male Recreational Runners: Application of Statistical Nonparametric Mapping in Lower Limb Biomechanics. Front Bioeng Biotechnol 2022; 9:821530. [PMID: 35155415 PMCID: PMC8833076 DOI: 10.3389/fbioe.2021.821530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/20/2021] [Indexed: 11/25/2022] Open
Abstract
With the increased popularity of running, many studies have been conducted into footwears that are highly related to running performance and running-related injuries. Previous studies investigated different shoe types and running shoes with different heel-to-toe drops (HTDs). However, no research was found in investigating shoes with negative values with HTD. Therefore, the aim of this study was to determine the acute effect of HTD and running speed on lower limb biomechanics and strike pattern in recreational runners. Thirteen male recreational runners wearing shoes with two different HTDs (−8 and 8 mm) performed running at three different speeds (preferred speed [PS], 90% of PS, 110% of PS). Lower extremity kinematics and ground reaction forces were synchronously captured via Vicon motion analysis system and AMTI force platform. Strike index (SI), vertical average loading rate (VALR), vertical instantaneous loading rate (VILR), excursion, eversion duration, joint angles, and range of motion (ROM) of metatarsophalangeal (MTP), ankle, knee, and hip joints were calculated. Joint angles during the entire stance phase were analyzed applying the statistical nonparametric mapping (SnPM) method. SI and VILR in shoes with −8 mm HTD significantly increased by 18.99% and 31.836 BW/s compared to those with 8 mm HTD (SI: p = 0.002; VILR: p < 0.001). Significant alterations of ROM occurred in the MTP, ankle, and knee joints (p < 0.05), and HTD factor primarily accounted for these changes. Joint angles (MTP, knee, and hip) during the entire stance phase altered due to HTD and speed factors. Running speed primarily influenced the kinematics parameters of knee and hip joints, increasing knee angles in the frontal plane and hip angle in the horizontal plane at PS (p > 0.05). Compared to shoes with 8 mm HTD, shoes with −8 mm HTD may be useful to storage and return energy because of the increased ROM of MTP in the sagittal plane. Besides, forefoot strike gait retraining was recommended before transition from normal running shoes to running shoes with −8 mm HTD.
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Affiliation(s)
- Peimin Yu
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Yuhuan He
- Faculty of Sports Science, Ningbo University, Ningbo, China
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- *Correspondence: Yaodong Gu, ; Rongrong Xuan,
| | - Yuwei Liu
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Rongrong Xuan
- Obsterical Department, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
- *Correspondence: Yaodong Gu, ; Rongrong Xuan,
| | - Justin Fernandez
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Grand Health, Ningbo University, Ningbo, China
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Engineering Science, The University of Auckland, Auckland, New Zealand
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Izquierdo-renau M, Sanchis-sanchis R, Priego-quesada JI, Encarnación-martínez A, Queralt A, Pérez-soriano P. Effects of Minimalist Footwear and Foot Strike Pattern on Plantar Pressure during a Prolonged Running. Applied Sciences 2022; 12:506. [DOI: 10.3390/app12010506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The use of minimalist shoes (MS) in running involves changes in running mechanics compared to conventional shoes (CS), but there is still little research analysing the effects of this footwear on plantar pressure, which could help to understand some risk injury factors. Moreover, there are no studies examining the effects of a prolonged running and foot strike patterns on baropodometric variables in MS. Therefore, the aim of this study was to analyse the changes produced using MS on plantar pressure during a prolonged running, as well as its interaction with the time and foot strike pattern. Twenty-one experienced minimalist runners (age 38 ± 10 years, MS running experience 2 ± 1 years) ran with MS and CS for 30 min at 80% of their maximal aerobic speed, and mean pressure, peak pressure, contact time, centre of pressure velocity, relative force and contact area were analysed using a pressure platform. Foot strike pattern and time were also considered as factors. The multivariable linear regression mixed models showed that the use of MS induced, at the end of a prolonged running, higher peak pressure (p = 0.008), lower contact time (p = 0.004) and lower contact area (p < 0.001) than using CS. Also, runners with forefoot strike pattern using MS, compared to midfoot and rearfoot patterns, showed higher mean and peak pressure (p < 0.001) and lower contact time and area (p < 0.05). These results should be considered when planning training for runners using MS, as higher peak pressure values when using this type of footwear could be a risk factor for the development of some foot injuries.
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John S, Eisenmann M, Witte K. Plantar pressure distribution and perceived comfort in hiking boots with different heel-to-toe drops before and after 45 minutes of walking. Footwear Science 2021. [DOI: 10.1080/19424280.2021.1991007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Stefanie John
- Institute of Sport Science, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Marcel Eisenmann
- Institute of Sport Science, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Kerstin Witte
- Institute of Sport Science, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
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16
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Affiliation(s)
- Elsa C. Matthias
- Allied Health & Human Performance, University of South Australia, Adelaide, Australia
| | - Helen A. Banwell
- Allied Health & Human Performance, University of South Australia, Adelaide, Australia
| | - John B. Arnold
- Allied Health & Human Performance, University of South Australia, Adelaide, Australia
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Cho YJ, Lee C, Lee JH, Kyung MG, Lee KH, Lee DY. The difference of in-shoe plantar pressure between level walking and stair walking in healthy males. J Biomech 2021; 122:110446. [PMID: 33933862 DOI: 10.1016/j.jbiomech.2021.110446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 03/18/2021] [Accepted: 04/12/2021] [Indexed: 11/16/2022]
Abstract
Stair walking is more demanding locomotion than level walking and can aggravate discomfort of the foot. The purpose of this study is to analyze plantar pressure distribution and pressure patterns during gait cycle at stair walking compared to level walking. Thirty-five healthy males with 23.4 ± 2 years old were included in this study after examining normality. They performed level walking, stair ascending, and descending in same type of shoes. Measurements of in-shoe plantar pressure including peak pressure, pressure-time integral were done by Pedar-X system, masked 7 regions. Also, pressures in each region throughout the gait cycle were analyzed from each type of walking. Statistical analysis was performed using repeated measure one way analysis of variance. Peak pressure in all regions except for the midfoot was higher during level walking than stair walking. Pressure-time integral in the forefoot, midfoot during stair ascending, and the forefoot during stair descending was higher than level walking. In gait cycle, first peak was produced in the heel and the second peak was produced in the hallux during level walking, whereas during stair ascent, the heel and midfoot were in first peak, and the second peak was in the hallux. During stair descent, the first peak were in the forefoot and the midfoot, and the second peak was in the forefoot. In healthy young male adults, forefoot and midfoot are significant regions in the way that they have higher pressure burdens than other foot regions during stair walking.
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Affiliation(s)
- Yun Jae Cho
- Department of Orthopedic Surgery, Han-il General Hospital, Seoul, South Korea.
| | - Choongho Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, South Korea.
| | - Jae Hee Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, South Korea.
| | - Min Gyu Kyung
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, South Korea.
| | - Kyung Hwan Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, South Korea.
| | - Dong Yeon Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, South Korea.
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Debugne G, Eerdekens M, Peters H, Staes F, Bertucii W, Deschamps K. Foot Loading Associated with Barefoot, Shod, and Minimalist Running in Male Rearfoot Strikers. J Am Podiatr Med Assoc 2020; 110:449542. [PMID: 33301593 DOI: 10.7547/17-160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND We aimed to determine the center of pressure (COP) trajectories and regional pressure differences in natural rearfoot strikers while running barefoot, running with a minimalist shoe, and running with a traditional shoe. METHODS Twenty-two male natural rearfoot strikers ran at an imposed speed along an instrumented runway in three conditions: barefoot, with a traditional shoe, and with a minimalist shoe. Metrics associated to the COP and regional plantar force distribution, captured with a pressure platform, were compared using one-way repeated-measures analysis of variance. RESULTS The forefoot contact phase was found to be significantly shorter in the barefoot running trials compared with the shod conditions (P = .003). The initial contact of the COP was located more anteriorly in the barefoot running trials. The mediolateral position of the COP at initial contact was found to be significantly different in the three conditions, whereas the final mediolateral position of the COP during the forefoot contact phase was found to be more lateral in the barefoot condition compared with both shod conditions (P = .0001). The metrics associated with the regional plantar force distribution supported the clinical reasoning with respect to the COP findings. CONCLUSIONS The minimalist shoe seems to provide a compromise between barefoot running and running with a traditional shoe.
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Peng P, Ding S, Wang Z, Zhang Y, Pan J. Effect of Running Speed and Midsole Type on Foot Loading in Heel-Toe Running. J Appl Biomech 2020; 36:134-140. [PMID: 32143190 DOI: 10.1123/jab.2019-0236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 01/06/2020] [Accepted: 01/14/2020] [Indexed: 10/27/2023]
Abstract
The purpose of this study was to explore the immediate effects of running speed and midsole type on foot loading during heel-toe running. Fifteen healthy male college students were required to complete 3 running trials on an indoor 45-m tartan runway at 4 different speeds (3, 4, 5, and 6 m/s) using 2 different running footwear types (engineering thermoplastic polyurethane elastomer, polyurethane elastomer; and ethylene vinyl acetate, vinyl acetate). The ground reaction force and plantar pressure data were quantified. Significant speed effects were detected both in ground reaction force and plantar pressure-related data (P < .05). Vertical average loading rate was significantly less, and time to first peak occurred later for the polyurethane elastomer compared with vinyl acetate footwear (P < .05). The peak pressure of the heel, medial forefoot, central forefoot, lateral forefoot, and big toe was significantly less when subjects wore a polyurethane elastomer than vinyl acetate footwear (P < .05). Overall, our results suggested that, compared with the vinyl acetate footwear, the special polyurethane elastomer footwear that is adhered with thousands of polyurethane elastomer granules was effective at reducing the mechanical impact on the foot.
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Affiliation(s)
- Piaolin Peng
- Shaanxi University of Science & Technology
- Liming Vocational University
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20
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Abstract
BACKGROUND Stumbles are common accidents that can result in falls and serious injuries, particularly in the workplace where back and forth movements are involved and in offices where high heels are imperative. Currently, the characteristics of plantar pressure during a stumble and the differences between stumbling and a normal gait remain unclear. OBJECTIVE This paper is aimed at providing insights into the feasibility of the data mining technique for interventions in stumble-related occupational safety issues. METHODS The characteristics of plantar pressure distribution during stumbling and normal gait were analyzed by using the power spectrum density (PSD) and the Support Vector Machine (SVM). The PSD, a novel pattern recognition feature, was used to mathematically describe the image signal. The SVM, a powerful data mining technique, was used as the classifier to recognize a stumble. Dynamic plantar pressures were measured from twelve healthy participants as they walked. RESULTS The plantar pressures of the stumbling gaits had significantly different patterns compared to the normal ones, from either a qualitative or quantitative perspective. The mean recognition accuracy of the proposed method reached 96.7%. CONCLUSIONS This study helps better understand stumbles and provides a theoretical basis for stumble-related occupational injuries. In addition, the stumble is the precursor of a fall and the research on stumble recognition would be of value to predict and provide warnings of falls and to design anti-fall devices for potential victims.
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Affiliation(s)
- Jianwei Niu
- School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, China
| | - Yanling Zheng
- School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, China
| | - Haixiao Liu
- School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, China
| | - Xiao Chen
- Institute of Quartermaster Engineering and Technology, Chinese Academy of Military Sciences, Beijing, China
| | - Linghua Ran
- China National Institute of Standardization, Beijing, China
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21
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Phanpho C, Rao S, Moffat M. Immediate effect of visual, auditory and combined feedback on foot strike pattern. Gait Posture 2019; 74:212-217. [PMID: 31561119 DOI: 10.1016/j.gaitpost.2019.09.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 09/01/2019] [Accepted: 09/15/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND A growing body of literature supports the promising effect of real-time feedback to re-train runners. However, no studies have comprehensively assessed the effects of foots trike and cadence modification using different forms of real-time feedback provided via wearable devices. RESEARCH QUESTION The purpose of the present study was to determine if a change could be made in foot strike pattern and plantar loads using real-time visual, auditory and combined feedback provided using wearable devices. METHODS Visual, auditory and combined feedback were provided using wearable devices as fifteen recreational runners ran on a treadmill at self-selected speed and increased cadence. Plantar loads and location of initial contact were measured with a flexible insole system. Repeated measures ANOVAs with Bonferroni adjusted pair-wise comparisons were used to assess statistical significance. RESULTS AND SIGNIFICANCE A significant effect of condition was noted on location of center of pressure (p < 0.01). Bonferroni-adjusted post-hoc comparisons showed that feedback conditions differed from baseline as well as the new cadence conditions, however did not differ from each other. A significant interaction effect (region x feedback) was found for plantar loads (maximum force P < 0.001). Significant effects of feedback were noted at the heel (P < 0.001), medial midfoot (P < 0.001), lateral midfoot (P < 0.001), medial forefoot (P = 0.003), central forefoot (P = 0.003), and great toe (P = 0.004) but not at the lateral forefoot (P = 0.6) or lateral toes (P = 0.507). SIGNIFICANCE The unique findings of our study showed that an anterior shift of the center of pressure, particularly when foot strike modification was combined with 10% increased cadence. We found lower heel and midfoot loads along with higher forefoot and great toe loads when foot strike modification using real-time feedback was combined with increased cadence. Our findings also suggest that auditory feedback might be more effective than visual feedback in foot-strike modification.
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Affiliation(s)
- Chutima Phanpho
- Department of Physical Therapy, 380 Second Avenue, 4th Floor New York, New York 10010-5615, United States
| | - Smita Rao
- Department of Physical Therapy, 380 Second Avenue, 4th Floor New York, New York 10010-5615, United States; Department of Orthopedic Surgery, NYU School of Medicine, NYU Langone Health, NYU Langone Orthopedic Hospital, 301 East 17th Street, New York, NY 10003, United States.
| | - Marilyn Moffat
- Department of Physical Therapy, 380 Second Avenue, 4th Floor New York, New York 10010-5615, United States
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Affiliation(s)
- Florian C. Richert
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Thorsten Stein
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Steffen Ringhof
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Department of Sport and Sport Science, University of Freiburg, Freiburg, Germany
| | - Bernd J. Stetter
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
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23
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Affiliation(s)
- Jena Kay Ogston
- Department of Physical Therapy, College of St. Scholastica, Duluth, USA
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Abstract
This study aimed to explore the effects of strike patterns and shoe conditions on foot loading during running. Twelve male runners were required to run under shoe (SR) and barefoot conditions (BR) with forefoot (FFS) and rearfoot strike patterns (RFS). Kistler force plates and the Medilogic insole plantar pressure system were used to collect kinetic data. SR with RFS significantly reduced the maximum loading rate, whereas SR with FFS significantly increased the maximum push-off force compared to BR. Plantar pressure variables were more influenced by the strike patterns (15 out of 18 variables) than shoe conditions (7 out of 18 variables). The peak pressure of midfoot and heel regions was significantly increased in RFS, but appeared in a later time compared to FFS. The influence of strike patterns on running, particularly on plantar pressure characteristics, was more significant than that of shoe conditions. Heel-toe running caused a significant impact force on the heel, whereas wearing cushioned shoes significantly reduced the maximum loading rate. FFS running can prevent the impact caused by RFS. However, peak plantar pressure was centered at the forefoot for a long period, thereby inducing a potential risk of injury in the metatarsus/phalanx.
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Affiliation(s)
- Xiaole Sun
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, Shanghai China
| | - Yang Yang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, Shanghai China
| | - Lin Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, Shanghai China.,Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, Shanghai China
| | - Xini Zhang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, Shanghai China
| | - Weijie Fu
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, Shanghai China.,Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, Shanghai China
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Araguas Garcia C, Corbi Soler F. Effect of debridement of plantar hyperkeratoses on gait in older people - An exploratory trial. Arch Gerontol Geriatr 2018; 78:7-13. [PMID: 29879593 DOI: 10.1016/j.archger.2018.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/17/2018] [Accepted: 05/30/2018] [Indexed: 11/30/2022]
Abstract
Hyperkeratoses are a common cause of foot pain due to the release of inflammatory mediators, which can have an impact on the mobility and independence of people suffering from them. However, the repercussions that hyperkeratoses have on gait parameters remain uncertain. AIM The aim of this study is to analyze the repercussions that plantar hyperkeratosis debridement has on several kinematic and kinetic variables of gait in a group of older participants. METHODS 98 older participants (75.1 ± 6.7 years) were randomly assigned to two groups: Group A, Scalpel debridement of plantar hyperkeratoses; and Group B, Control group (Simulated debridement). Plantar hyperkeratotic pain was measured before and after treatment on a visual analog scale. Several kinematic and kinetic variables of gait were measured before and after treatment using a Win-Track pressure sensitive walkway. RESULTS A significant difference was found in the level of pain between the treated group and the control group (p < 0.01 [8.55-18.15; 95% confidence interval]). Regarding the gait parameters, statistically significant reductions were found in peak pressures (p < 0.05; Cohen's d = 2.688) and maximum force (p < 0.04; d = 0.262). CONCLUSIONS Data suggests that debridement of plantar hyperkeratosis may lead to a reduction in pain and appear to reduce peak maximum force and peak plantar pressure. No significant changes were observed in the kinematic variables analyzed. The duration of the benefits remain unknown.
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Affiliation(s)
- Caleb Araguas Garcia
- Josep Finestres Foundation, Podiatry Hospital, University of Barcelona, Barcelona, Spain; Department of Health and Management, National Institute for Physical Education of Catalonia (INEFC) - Lleida Centre, University of Lleida, Lleida, Spain.
| | - Francisco Corbi Soler
- Department of Health and Management, National Institute for Physical Education of Catalonia (INEFC) - Lleida Centre, University of Lleida, Lleida, Spain
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Agresta C, Kessler S, Southern E, Goulet GC, Zernicke R, Zendler JD. Immediate and short-term adaptations to maximalist and minimalist running shoes. Footwear Science 2018. [DOI: 10.1080/19424280.2018.1460624] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Cristine Agresta
- Michigan Performance Research Laboratory, University of Michigan, Ann Arbor, MI, USA
| | - Sarah Kessler
- Michigan Performance Research Laboratory, University of Michigan, Ann Arbor, MI, USA
| | - Emily Southern
- Michigan Performance Research Laboratory, University of Michigan, Ann Arbor, MI, USA
| | - Grant C Goulet
- Michigan Performance Research Laboratory, University of Michigan, Ann Arbor, MI, USA
| | - Ronald Zernicke
- School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
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Miura A, Moriyasu K, Nishiwaki T. Establishment of the simplified technique for estimating joint moments in foot during running. Footwear Science 2018. [DOI: 10.1080/19424280.2017.1403970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ayu Miura
- Institute of Sport Science, ASICS Corporation, Kobe, Japan
| | - Kenta Moriyasu
- Institute of Sport Science, ASICS Corporation, Kobe, Japan
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Hotfiel T, Carl HD, Wendler F, Jendrissek A, Heiß R, Swoboda B. Plantar pressures increase with raising body weight: A standardised approach with paired sample using neutral shoes. J Back Musculoskelet Rehabil 2017; 30:583-589. [PMID: 28035908 DOI: 10.3233/bmr-150442] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Plantar pressure leads to stress on plantar tissue and can be seen as risk factor for metatarsal stress fractures or plantar ulcers and is associated with prolonged and complicated recurrence of existing tissue damages. A clear demarcation of a systematic raise of body load regarding its effect on plantar pressure has not been described. OBJECTIVE Assessing plantar pressure patterns in different conditions of body weight, comparing data to initial body weight. METHODS Seventeen healthy volunteers were asked to participate. Peak pressure values were assessed during walking with dynamic pedobarography and analysed from three foot sections. Body weight was loaded up gradually with 10%, 20% and 30% of the individual initial weight by using a weighted vest. RESULTS We were able to detect a statistically significant increase of plantar pressure for all foot regions in case of loaded body weight of 20% and 30% comparing to initial weight (p< 0.05). The midfoot area displays a significant increase for peak pressure for the preferred foot even for 10% body load. CONCLUSIONS Peak plantar pressure increases with loaded body weight. The midfoot area seems to be a sensitive area in case of adapting increasing foot load. Considering the clinical relevance, loaded body weight has to be seen as risk factor for increasing plantar pressure patterns and should be considered in recurrence of plantar ulcers or stress fractures.
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Affiliation(s)
- T Hotfiel
- Division of Orthopaedic Rheumatology, Department of Orthopaedic Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - H D Carl
- Division of Orthopaedic Rheumatology, Department of Orthopaedic Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - F Wendler
- Division of Orthopaedic Rheumatology, Department of Orthopaedic Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - A Jendrissek
- Division of Orthopaedic Rheumatology, Department of Orthopaedic Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - R Heiß
- Department of Radiology, University Hospital Erlangen, Erlangen, Germany
| | - B Swoboda
- Division of Orthopaedic Rheumatology, Department of Orthopaedic Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
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Xu Y, Hou Q, Wang C, Sellers AJ, Simpson T, Bennett BC, Russell SD. Full Step Cycle Kinematic and Kinetic Comparison of Barefoot Walking and a Traditional Shoe Walking in Healthy Youth: Insights for Barefoot Technology. Appl Bionics Biomech 2017; 2017:2638908. [PMID: 29238158 DOI: 10.1155/2017/2638908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/15/2017] [Accepted: 09/11/2017] [Indexed: 11/18/2022] Open
Abstract
Objective Barefoot technology shoes are becoming increasingly popular, yet modifications are still needed. The present study aims to gain valuable insights by comparing barefoot walking to neutral shoe walking in a healthy youth population. Methods 28 healthy university students (22 females and 6 males) were recruited to walk on a 10-meter walkway both barefoot and in neutral running shoes at their comfortable walking speed. Full step cycle kinematic and kinetic data were collected using an 8-camera motion capture system. Results In the early stance phase, the knee extension moment (MK1), the first peak absorbed joint power at the knee joint (PK1), and the flexion angle of knee/dorsiflexion angle of the ankle were significantly reduced when walking in neutral running shoes. However, in the late stance, barefoot walking resulted in decreased hip joint flexion moment (MH2), second peak extension knee moment (MK3), hip flexors absorbed power (PH2), hip flexors generated power (PH3), second peak absorbed power by knee flexors (PK2), and second peak anterior-posterior component of joint force at the hip (APFH2), knee (APFK2), and ankle (APFA2). Conclusions These results indicate that it should be cautious to discard conventional elements from future running shoe designs and rush to embrace the barefoot technology fashion.
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Bertelsen ML, Hulme A, Petersen J, Brund RK, Sørensen H, Finch CF, Parner ET, Nielsen RO. A framework for the etiology of running-related injuries. Scand J Med Sci Sports 2017; 27:1170-1180. [PMID: 28329441 DOI: 10.1111/sms.12883] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2017] [Indexed: 11/29/2022]
Abstract
The etiology of running-related injury is important to consider as the effectiveness of a given running-related injury prevention intervention is dependent on whether etiologic factors are readily modifiable and consistent with a biologically plausible causal mechanism. Therefore, the purpose of the present article was to present an evidence-informed conceptual framework outlining the multifactorial nature of running-related injury etiology. In the framework, four mutually exclusive parts are presented: (a) Structure-specific capacity when entering a running session; (b) structure-specific cumulative load per running session; (c) reduction in the structure-specific capacity during a running session; and (d) exceeding the structure-specific capacity. The framework can then be used to inform the design of future running-related injury prevention studies, including the formation of research questions and hypotheses, as well as the monitoring of participation-related and non-participation-related exposures. In addition, future research applications should focus on addressing how changes in one or more exposures influence the risk of running-related injury. This necessitates the investigation of how different factors affect the structure-specific load and/or the load capacity, and the dose-response relationship between running participation and injury risk. Ultimately, this direction allows researchers to move beyond traditional risk factor identification to produce research findings that are not only reliably reported in terms of the observed cause-effect association, but also translatable in practice.
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Affiliation(s)
- M L Bertelsen
- Section for Sports Science, Department of Public Health, Aarhus University, Aarhus C, Denmark
| | - A Hulme
- Australian Collaboration for Research into Injury in Sport and its Prevention, Federation University Australia, Ballarat, Vic., Australia
| | - J Petersen
- Section for Sports Science, Department of Public Health, Aarhus University, Aarhus C, Denmark
| | - R K Brund
- Department of Health Science and Technology, Aalborg University, SMI®, Aalborg, Denmark
| | - H Sørensen
- Section for Sports Science, Department of Public Health, Aarhus University, Aarhus C, Denmark
| | - C F Finch
- Australian Collaboration for Research into Injury in Sport and its Prevention, Federation University Australia, Ballarat, Vic., Australia
| | - E T Parner
- Section of Biostatistics, Department of Public Health, Aarhus University, Aarhus C, Denmark
| | - R O Nielsen
- Section for Sports Science, Department of Public Health, Aarhus University, Aarhus C, Denmark
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Sobhani S, van den Heuvel ER, Dekker R, Postema K, Kluitenberg B, Bredeweg SW, Hijmans JM. Biomechanics of running with rocker shoes. J Sci Med Sport 2017; 20:38-44. [DOI: 10.1016/j.jsams.2016.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 03/28/2016] [Accepted: 04/05/2016] [Indexed: 12/01/2022]
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Cheung RTH, Wong RYL, Chung TKW, Choi RT, Leung WWY, Shek DHY. Relationship between foot strike pattern, running speed, and footwear condition in recreational distance runners. Sports Biomech 2016; 16:238-247. [PMID: 27593384 DOI: 10.1080/14763141.2016.1226381] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Compared to competitive runners, recreational runners appear to be more prone to injuries, which have been associated with foot strike patterns. Surprisingly, only few studies had examined the foot strike patterns outside laboratories. Therefore, this study compared the foot strike patterns in recreational runners at outdoor tracks with previously reported data. We also investigated the relationship between foot strike pattern, speed, and footwear in this cohort. Among 434 recreational runners analysed, 89.6% of them landed with rearfoot strike (RFS). Only 6.9 and 3.5% landed with midfoot and forefoot, respectively. A significant shift towards non-RFS was observed in our cohort, when compared with previously reported data. When speed increased by 1 m/s, the odds of having forefoot strike and midfoot strike relative to RFS increased by 2.3 times and 2.6 times, respectively. Runners were 9.2 times more likely to run with a forefoot strike in minimalists compared to regular running shoes, although 70% of runners in minimalists continued to use a RFS. These findings suggest that foot strike pattern may differ across running conditions and runners should consider these factors in order to mitigate potential injury.
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Affiliation(s)
- Roy T H Cheung
- a Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences , The Hong Kong Polytechnic University , Hong Kong , China
| | - Rodney Y L Wong
- a Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences , The Hong Kong Polytechnic University , Hong Kong , China
| | - Tim K W Chung
- a Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences , The Hong Kong Polytechnic University , Hong Kong , China
| | - R T Choi
- a Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences , The Hong Kong Polytechnic University , Hong Kong , China
| | - Wendy W Y Leung
- a Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences , The Hong Kong Polytechnic University , Hong Kong , China
| | - Diana H Y Shek
- a Gait & Motion Analysis Laboratory, Department of Rehabilitation Sciences , The Hong Kong Polytechnic University , Hong Kong , China
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Lucas-Cuevas AG, Priego Quesada JI, Giménez JV, Aparicio I, Jimenez-Perez I, Pérez-Soriano P. Initiating running barefoot: Effects on muscle activation and impact accelerations in habitually rearfoot shod runners. Eur J Sport Sci 2016; 16:1145-52. [DOI: 10.1080/17461391.2016.1197317] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Paillard T, Noé F. Techniques and Methods for Testing the Postural Function in Healthy and Pathological Subjects. Biomed Res Int 2015; 2015:891390. [PMID: 26640800 DOI: 10.1155/2015/891390] [Citation(s) in RCA: 250] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/05/2015] [Accepted: 10/21/2015] [Indexed: 12/15/2022]
Abstract
The different techniques and methods employed as well as the different quantitative and qualitative variables measured in order to objectify postural control are often chosen without taking into account the population studied, the objective of the postural test, and the environmental conditions. For these reasons, the aim of this review was to present and justify the different testing techniques and methods with their different quantitative and qualitative variables to make it possible to precisely evaluate each sensory, central, and motor component of the postural function according to the experiment protocol under consideration. The main practical and technological methods and techniques used in evaluating postural control were explained and justified according to the experimental protocol defined. The main postural conditions (postural stance, visual condition, balance condition, and test duration) were also analyzed. Moreover, the mechanistic exploration of the postural function often requires implementing disturbing postural conditions by using motor disturbance (mechanical disturbance), sensory stimulation (sensory manipulation), and/or cognitive disturbance (cognitive task associated with maintaining postural balance) protocols. Each type of disturbance was tackled in order to facilitate understanding of subtle postural control mechanisms and the means to explore them.
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Gu Y, Mei Q, Fernandez J, Li J, Ren X, Feng N. Foot loading characteristics of Chinese bound feet women: a comparative analysis. PLoS One 2015; 10:e0121695. [PMID: 25884982 PMCID: PMC4401540 DOI: 10.1371/journal.pone.0121695] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/14/2015] [Indexed: 12/02/2022] Open
Abstract
The custom of bound feet among Chinese women has existed for almost a century. This practice has influenced the daily life of Chinese women, especially during everyday locomotion. The primary aim of this study is to analyze the loading patterns of bound feet. Specifically, the plantar pressure and center of pressure were analyzed for peak pressure, contact area, force time integral, center of pressure displacement velocity and trajectory in the anterior-posterior direction via a comparison with normal feet. The key outcomes from this work were that the forefoot and rearfoot of bound feet bear the whole loading during stance phase. The center of pressure displacement velocity of bound feet was also greatly reduced with the shortening of trajectories. This suggests that the proprioceptive system adjusts motor function to adapt to new loading patterns while maintaining locomotive stability. A biomechanical understanding of bound feet may assist with prevention, treatment and rehabilitation of bound feet disorders.
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Affiliation(s)
- Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, China
- * E-mail:
| | - Qichang Mei
- Faculty of Sports Science, Ningbo University, Ningbo, China
| | - Justin Fernandez
- Department of Engineering Science, University of Auckland, Auckland, New Zealand
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - Jianshe Li
- Faculty of Sports Science, Ningbo University, Ningbo, China
| | - Xuejun Ren
- School of Engineering, Liverpool John Moores University, Liverpool, United Kingdom
| | - Neng Feng
- Rehabilitation Center, Ningbo Ninth Hospital, Ningbo, China
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Priego Quesada JI, Kunzler MR, Rocha ESD, Machado ÁS, Carpes FP. Plantar Pressure and Foot Temperature Responses to Acute Barefoot and Shod Running. Human Movement 2015. [DOI: 10.1515/humo-2015-0040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractPurpose. Increased contact pressure and skin friction may lead to higher skin temperature. Here, we hypothesized a relationship between plantar pressure and foot temperature. To elicit different conditions of stress to the foot, participants performed running trials of barefoot and shod running. Methods. Eighteen male recreational runners ran shod and barefoot at a self-selected speed for 15 min over different days. Before and immediately after running, plantar pressure during standing (via a pressure mapping system) and skin temperature (using thermography) were recorded. Results. No significant changes were found in plantar pressure after barefoot or shod conditions (p > 0.9). Shod running elicited higher temperatures in the forefoot (by 0.5-2.2°C or 0.1-1.2% compared with the whole foot, p < 0.01) and midfoot (by 0.9-2.4°C, p < 0.01). Barefoot running resulted in higher temperature variation in the rearfoot (0.1-10.4%, p = 0.04). Correlations between skin temperature and plantar pressure were not significant (r < 0.5 and r > -0.5, p > 0.05). Conclusions. The increase in temperature after the shod condition was most likely the result of footwear insulation. However, variation of the temperature in the rearfoot was higher after barefoot running, possible due to a higher contact load. Changes in temperature could not predict changes in plantar pressure and vice-versa.
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