Foot shape and plantar pressure relationships in shod and barefoot populations

Mei, Qichang; Gu, Yaodong; Xiang, Liangliang; Yu, Peimin; Gao, Zixiang; Shim, Vickie; Fernandez, Justin

doi:10.1007/s10237-019-01255-w

Cited by 34 publications

(30 citation statements)

References 41 publications

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“…It should be noted that while the PLSR method has been used to predict plantar pressure (Mei et al, 2019b), foot posture, joint kinematics, joint moments, and joint contact forces in gait analysis (Mei et al, 2019a), this is the first study which applies PLSR models to correlate initial angles with prolonged running fatigue joint work in amateur female runners.…”

Section: Discussionmentioning

confidence: 99%

Effects of Fatigue Running on Joint Mechanics in Female Runners: A Prediction Study Based on a Partial Least Squares Algorithm

Quan

Ren

et al. 2021

Front. Bioeng. Biotechnol.

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Background: Joint mechanics are permanently changed using different intensities and running durations. These variations in intensity and duration also influence fatigue during prolonged running. Little is known about the potential interactions between fatigue and joint mechanics in female recreational runners. Thus, the purpose of this study was to describe and examine kinematic and joint mechanical parameters when female recreational runners are subject to fatigue as a result of running.Method: Fifty female recreational runners maintained running on a treadmill to induce fatigue conditions. Joint mechanics, sagittal joint angle, moment, and power were recorded pre- and immediately post fatigue treadmill running.Result: Moderate reductions in absolute positive ankle power, total ankle energy dissipation, dorsiflexion at initial contact, max dorsiflexion angle, and range of motion of the joint ankle were collected after fatigue following prolonged fatigue running. Knee joint mechanics, joint angle, and joint power remained unchanged after prolonged fatigue running. Nevertheless, with the decreased ankle joint work, negative knee power increased. At the hip joint, the extension angle was significantly decreased. The range motion of the hip joint, hip positive work and hip positive power were increased during the post-prolonged fatigue running.Conclusion: This study found no proximal shift in knee joint mechanics in amateur female runners following prolonged fatigue running. The joint work redistribution was associated with running fatigue changes. As for long-distance running, runners should include muscle strength training to avoid the occurrence of running-related injuries.

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Section: Discussionmentioning

confidence: 99%

Effects of Fatigue Running on Joint Mechanics in Female Runners: A Prediction Study Based on a Partial Least Squares Algorithm

Quan

Ren

et al. 2021

Front. Bioeng. Biotechnol.

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“…There are several factors that influence running, including technique [2][3][4], age [5,6], and the type and inclination of the running surface [7][8][9]. With respect to the foot, the most important factors that can influence distance runners are the running shoes used [9][10][11] and the runner's foot type [12,13].…”

Section: Introductionmentioning

confidence: 99%

Longitudinal Analysis of Plantar Pressures with Wear of a Running Shoe

Gómez-Martín

Fernández-Seguín

Nova

et al. 2020

IJERPH

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Running shoes typically have a lifespan of 300–1000 km, and the plantar pressure pattern during running may change as the shoe wears. So, the aim of this study was to determine the variation of plantar pressures with shoe wear, and the runner’s subjective sensation. Maximun Plantar Pressures (MMP) were measured from 33 male recreational runners at three times during a training season (beginning, 350 km, and 700 km) using the Biofoot/IBV® in-shoe system (Biofoot/IBV®, Valencia, Spain). All the runners wore the same shoes (New Balance® 738, Boston, MA, USA) during this period, and performed similar training. The zones supporting most pressure at all three study times were the medial (inner) column of the foot and the forefoot. There was a significant increase in pressure on the midfoot over the course of the training season (from 387.8 to 590 kPa, p = 0.003). The runners who felt the worst cushioning under the midfoot were those who had the highest peak pressures in that area (p = 0.002). The New Balance® 738 running shoe effectively maintains the plantar pressure pattern after 700 km of use under all the zones studied except the midfoot, probably due to material fatigue or deficits of the specific cushioning systems in that area.

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“…Partial least-squares regression (PLSR) [ 29 , 30 , 31 ] was used to model the relationship between five predictors (including various physical fitness indicators of firefighters) and seven responses (including scores of specific skill assessment of firefighters). The predictive variables included weight (X1), maximum oxygen uptake or VO 2max (X2), body fat percentage (X3), upper body muscular power (X4) and lower body muscular power (X5).…”

Section: Methodsmentioning

confidence: 99%

Relationship between Firefighter Physical Fitness and Special Ability Performance: Predictive Research Based on Machine Learning Algorithms

Song

Meng

et al. 2020

IJERPH

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Firefighters require a high level of physical fitness to meet the demands of their job. The correlations and contributions of individual physical health parameters to the tasks of firefighting would enable firefighters to focus on the effects of specific physical conditions during their physical training programs. Therefore, the purpose of the present study was to identify the relationships between various physical health parameters (weight, maximum oxygen uptake, body fat percentage, upper body muscular power and lower body muscular power) and performance on simulated firefighting ability tasks, which included a set of seven tasks (rope climb, run 200 m round trip with load, 60 m carrying a ladder, climb stairs with load, evacuation of 400 m with supplies, run 5 km with an air respirator, run 100 m with the water hose). Through use of a partial least-squares regression (PLSR) algorithm to analyze the linear correlation, we revealed the change in various training performances of specific ability tests with physical fitness parameters. The present study demonstrated significant relationships among physical health parameters and performance on simulated firefighting ability tasks, which also represent that those parameters contributed significantly to the model’s predictive power and were suitable predictors of the simulated firefighting tasks score.

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Foot shape and plantar pressure relationships in shod and barefoot populations

Cited by 34 publications

References 41 publications

Effects of Fatigue Running on Joint Mechanics in Female Runners: A Prediction Study Based on a Partial Least Squares Algorithm

Effects of Fatigue Running on Joint Mechanics in Female Runners: A Prediction Study Based on a Partial Least Squares Algorithm

Longitudinal Analysis of Plantar Pressures with Wear of a Running Shoe

Relationship between Firefighter Physical Fitness and Special Ability Performance: Predictive Research Based on Machine Learning Algorithms

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