Effects of unknown footwear midsole thickness on running kinematics

NewsBot · Dec 14, 2012

Members do not see these Ads. Sign Up.
Effects of unknown footwear midsole thickness on running kinematics within the initial six minutes of running
Trampas M. TenBroek, Pedro Rodrigues, Edward C. Frederick & Joseph Hamill
Footwear Science (in press)

Introduction: Research on minimal footwear hasn’t utilised runners who habitually wear typical training footwear and therefore what adjustments to running patterns are made and how quickly they occur is unknown.

Purpose: The purposes of this study were: 1) to investigate how kinematic patterns are adjusted while running barefoot and in footwear with systematic changes in shock attenuating material; and 2) to determine the time it takes for adjustments to occur when little is known about the footwear condition before running commences.

Methods: Ten male heel-toe runners performed treadmill runs of 6 minutes in thin, medium, and thick footwear and barefoot. Participants ran immediately after putting shoes on to limit information about each footwear condition. Standard kinematics and acceleration signals were captured. Repeated measures analysis of variance (ANOVA) was utilised (p < 0.05) to determine differences across footwear conditions and time.

Results: The foot was flatter at touchdown (due to a more vertical leg segment and more plantar flexion), the knee had reduced excursion, and stance times, eversion and tibial rotation excursions were greater in the thin footwear or when barefoot. Several variables were adjusted from the initial steps to later in the run. Acceleration standard deviations had more variability during initial steps than immediately following.

Discussion: Many kinematic adjustments agreed with previous works though participants did not adopt a midfoot or forefoot strike pattern. Experimental design and participant knowledge and experiences may be contributing to discrepancies in footstrike patterns. Runners sensitive to eversion and tibial internal rotation should use caution when barefoot or in minimal footwear. Finally, the greatest kinematic changes occurred within the first six to eight steps, however more subtle changes
Click to expand...

NewsBot · Oct 31, 2018

Effects of footwear midsole thickness on running biomechanics
Mark H.C. Law, Eric M.F. Choi, Stephanie H.Y. Law, Subrina S.C. Chan ORCID Icon, Sonia M.S. Wong, Eric C.K. Ching
Journal of Sports Sciences : 25 Oct 2018

Shoe manufacturers launch running shoes with increased (e.g., maximalists) or decreased (e.g., minimalists) midsole thickness and claim that they may prevent running injury. Previous studies tested footwear models with different midsole thicknesses on the market but the shoe construct was not strictly comparable. Therefore, in the present study, we examined the effect of midsole thickness, from 1-mm to 29-mm, in a standard test shoe prototype on the vertical loading rates, footstrike angle and temporal spatial parameters in distance runners. Fifteen male habitual rearfoot strikers were recruited from local running clubs. They were asked to run on an instrumented treadmill in shoes with different midsole thicknesses. We found significant interactions between midsole thickness with vertical loading rates (p < 0.001), footstrike angle (p = 0.013), contact time (p < 0.001), cadence (p = 0.003), and stride length (p = 0.004). Specifically, shoes with thinner midsole (1- and 5-mm) significantly increased the vertical loading rates and shortened the contact time, when compared with thicker midsole shoes (25- and 29-mm). However, we did not observe any substantial differences in the footstrike angle, cadence and stride length between other shod conditions. The present study provides biomechanical data regarding the relationship between full spectrum midsole thicknesses and running biomechanics in a group of rearfoot strikers.
Click to expand...

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

Effects of Diuretics on Foot Edema in Patients with Cancer

Side effects of gel nail polish

Effects of the Short Foot Exercise

Effects of Limitation of Movement of the First Metatarsophalangeal Joint

Effects of flat-flexible shoes on lower limb joint kinetics and kinematics in gait

Effects of fatigue on the plantar fascia

It’s Gotta Be the Shoes! Performance Enhancement Effects of Novel Brand Advertising

Share This Page