Studies of running mechanics often use a standardized lab shoe, ostensibly to reduce variance between subjects; however, this may induce unnatural running mechanics. The purpose of this study was to compare the step rate, vertical average loading rate, and ground contact time when running in standardized lab shoes versus participants' normal running shoes. Ground reaction forces were measured while the participants ran overground in both shoe conditions at a self-selected speed. The Student's t-test revealed that the vertical average loading rate magnitude was smaller in lab shoes versus normal shoes (42.09 [11.08] vs 47.35 [10.81] body weight/s, P = .013), while the step rate (170.92 [9.43] vs 168.98 [9.63] steps/min, P = .053) and ground contact time were similar (253 [25] vs 251 [20] ms, P = .5227) and the variance of all outcomes was similar in lab shoes versus normal shoes. Our results indicate that using standardized lab shoes during testing may underestimate the loads runners actually experience during their typical mileage.
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http://dx.doi.org/10.1123/jab.2019-0337 | DOI Listing |
Clin Biomech (Bristol)
December 2024
Department of Rehabilitation Sciences, Musculoskeletal Rehabilitation Research Group, Katholieke Universiteit Leuven (KU Leuven), Bruges, Belgium; Universitaire Ziekenhuizen KU Leuven (UZ Leuven), Campus Pellenberg, Clinical Motion Analysis Laboratorium (CMAL), Lubbeek, Belgium; Haute Ecole Leonard De Vinci, Secteur Santé, Département de Podologie, Brussels, Belgium.
Background: Specific foot exercises and the use of minimalist shoes during running or daily life were suggested to strengthen the intrinsic foot muscles and to modify locomotion biomechanics. We aimed to review the effectiveness of these interventions to modify foot muscle sizes, foot strength, and biomechanical outcomes.
Method: PubMed, Embase, Cochrane Library and SportDiscus databases were searched (last update: 12 March 2024).
Scand J Med Sci Sports
December 2024
Université Jean Monnet Saint-Etienne, Inter-University Laboratory of Human Movement Biology, Saint-Etienne, France.
Soft tissue vibrations (STV) can generate discomfort during running. Recent research has shown that footwear affects the amplitude of STV differently across runners but no studies have linked human characteristics and footwear construction yet. The purpose of this study was to investigate the runner specific STV responses to various midsole hardness and to identify functional groups, that is, groups of runners responding similarly to a given intervention.
View Article and Find Full Text PDFAppl Psychol Health Well Being
February 2025
LP3C (Laboratoire de Psychologie: Cognition, Comportement, Communication), Rennes 2 University, Rennes, France.
Cancer is an important issue and a model topic for misinformatfion researchers. The present research experimentally investigates the effect of cancer-related conspiracy beliefs and misinformation on oncology treatment intentions in a cancer-free population. In three pre-registered studies (N total = 1020), participants were asked to put themselves in the shoes of a patient recommended for chemotherapy.
View Article and Find Full Text PDFJ Appl Physiol (1985)
December 2024
Applied Biomechanics Lab, Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States.
Elite distance runners have exhibited race time improvements since the 2020 introduction of advanced footwear technology (AFT) for track and field, also known as "super" spikes. The observed performance improvements may be due to changes in midsole compliance, which could affect leg stiffness while wearing AFT spikes. Since increased leg stiffness has been associated with running speeds greater than 6 m/s, race time improvements for elite distance runners wearing AFT spikes may be reduced at faster running speeds.
View Article and Find Full Text PDFMed Sci Sports Exerc
November 2024
ENS Rennes, Bruz, FRANCE.
Introduction: Carbon plates have been used to increase running shoes' longitudinal bending stiffness (LBS), but their effect during a long duration run remains unknown. Our study aimed to identify the effect of LBS on energy cost of running (Cr), biomechanics, and fatigue during a half-marathon.Methods: Thirteen well-trained male runners (half-marathon time < 1 h40) performed two half-marathons at 95% of the running speed associated with their second ventilatory threshold on two separate visits, with either high-LBS shoes (HLBS, with carbon-plates) or standard-LBS (SLBS) shoes.
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