Linear dependence of peak, mean, and pressure–time integral values in plantar pressure images

Keijsers, Noël L.W.; Stolwijk, Niki M.; Pataky, Todd C.

doi:10.1016/j.gaitpost.2009.08.248

Cited by 52 publications

(46 citation statements)

References 9 publications

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“…Therefore, we decided to present just one parameter (pressure peak) to avoid redundant information. Different magnitudes of pressure peaks between studies might occur as a consequence of the plantar pressure peak calculation (Keijsers et al, 2010). Previous studies (Birtane & Tuna, 2004;Hills et al, 2001) did not describe how their plantar pressure peaks were calculated.…”

Section: Discussionmentioning

confidence: 98%

“…A high degree of linear dependence was found among the most common plantar pressure parameters-pressure peak, mean pressure, and the pressure -time integral (Keijsers, Stolwijk, & Pataky, 2010). Therefore, we decided to present just one parameter (pressure peak) to avoid redundant information.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies (Birtane & Tuna, 2004;Hills et al, 2001) did not describe how their plantar pressure peaks were calculated. In our study, we used the sensor peak approach instead of the regional peak approach, as the latter aggregates data from multiple sensors into a single regional value, therefore compromising the individual sensor information (Keijsers et al, 2010). The sensor peak approach provides more reliable information and leverages the high resolution of our in-shoe pressure system by analyzing the sensors individually (Keijsers et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

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In-Shoe Plantar Pressures and Ground Reaction Forces During Overweight Adults' Overground Walking

Castro

Abreu

Sousa

et al. 2014

Research Quarterly for Exercise and Sport

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Purpose: Because walking is highly recommended for prevention and treatment of obesity and some of its biomechanical aspects are not clearly understood for overweight people, we compared the absolute and normalized ground reaction forces (GRF), plantar pressures, and temporal parameters of normal-weight and overweight participants during overground walking. Method: A force plate and an in-shoe pressure system were used to record GRF, plantar pressures (foot divided in 10 regions), and temporal parameters of 17 overweight adults and 17 gender-matched normal-weight adults while walking. Results: With high effect sizes, the overweight participants showed higher absolute medial-lateral and vertical GRF and pressure peaks in the central rearfoot, lateral midfoot, and lateral and central forefoot. However, analyzing normalized (scaled to body weight) data, the overweight participants showed lower vertical and anterior-posterior GRF and lower pressure peaks in the medial rearfoot and hallux, but the lateral forefoot peaks continued to be greater compared with normal-weight participants. Time of occurrence of medial-lateral GRF and pressure peaks in the midfoot occurred later in overweight individuals. Conclusions: The overweight participants adapted their gait pattern to minimize the consequences of the higher vertical and propulsive GRF in their musculoskeletal system. However, they were not able to improve their balance as indicated by medial-lateral GRF. The overweight participants showed higher absolute pressure peaks in 4 out of 10 foot regions. Furthermore, the normalized data suggest that the lateral forefoot in overweight adults was loaded more than the proportion of their extra weight, while the hallux and medial rearfoot were seemingly protected.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

In-Shoe Plantar Pressures and Ground Reaction Forces During Overweight Adults' Overground Walking

Castro

Abreu

Sousa

et al. 2014

Research Quarterly for Exercise and Sport

View full text Add to dashboard Cite

show abstract

“…Majoritatea studiilor raporteazã rezultatele unui singur parametru. Astfel, compararea rezultatelor între diferite studii devine din ce în ce mai complexã [5].…”

Section: Introductionunclassified

“…Most of the studies report the results of one single parameter. Thus, matching up the results from different studies is becoming more and more complex [5].…”

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confidence: 99%

Plantar Footprints Analysis - Case Study (Part 1)

Mihai¹,

Hortal²,

Costea³

2013

LFJ

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ABSTRACT. This study aims to analyze the plantar footprints based on biomechanical parameters obtained through plantar pressure measurements and to present an easy to use methodology for establishing the foot type in order to further suggest orthopaedic devices, such as customized soles and insoles. Using the RSScan pressure plate and the Footscan software, fine observations both on foot and on repartition of foot pressures are made. By analyzing the maximum pressures rd th obtained in this case study, the highest values were registered under 3 and 4 metatarsal bones, suggesting that the investigated subject has different arrangements of high pressures compared with the ones reported by other similar studies. The gait time has been analysed, resulting in a normal distribution of this parameter on each area of the foot. By comparing the results, the left foot has been demonstrated to be high arched. KEY WORDS: plantar pressure, gait, foot, footprint ANALIZA AMPRENTELOR PLANTARE -STUDIU DE CAZ (PARTEA 1) REZUMAT. Acest studiu îºi propune sã analizeze amprentele plantare pe baza parametrilor biomecanici obþinuþi prin mãsurãtorile presiunilor plantare ºi sã elaboreze o metodologie uºor de urmat pentru stabilirea tipologiei piciorului, în vederea sugerãrii dispozitivelor ortopedice, cum ar fi tãlpile ºi branþurile personalizate. Folosind placa de presiune RSScan ºi software-ul Footscan sunt observate repartiþiile presiunilor la nivelul picioarelor. Prin analiza presiunilor maxime obþinute în acest studiu de caz, se poate observa cã cele mai mari valori au fost înregistrate sub oasele metatarsiene 3 ºi 4, sugerând astfel faptul cã subiectul investigat are zone de presiune ridicatã diferite, comparativ cu cele raportate de alte studii similare. A fost analizat timpul corespunzãtor efectuãrii unui pas, rezultând o distribuþie normalã a acestui parametru pe fiecare zonã a piciorului. Prin compararea rezultatelor, s-a demonstrat cã piciorul stâng este de tip picior scobit. CUVINTE CHEIE: presiuni plantare, mers, picior, amprentã L'ANALYSE D'EMPREINTES PLANTAIRES -ÉTUDE DE CAS (PREMIÈRE PARTIE)RÉSUMÉ. Cette étude a le but d'analyser les empreintes plantaires à partir des paramètres biomécaniques obtenues par des mesures de pression plantaire et de développer une méthodologie facile à suivre pour établir la typologie du pied, en vue de recommander des dispositifs orthopédiques tels que les semelles et les premières personnalisées. En utilisant la plateforme de pression RSScan et le logiciel Footscan, on a observé les distributions de pression dans les pieds. En analysant la pression maximale atteinte dans cette étude de cas, on constate que les valeurs les plus élevées ont été enregistrées dans les métatarses 3 et 4, ce qui suggère que le sujet étudié a régions de haute pression différentes de celles rapportées par des études similaires. On a analysé le temps nécessaire pour faire un pas, résultant en une distribution normale de ce paramètre sur chaque région du pied. En comparant les résultats, on a montré que le pied gauc...

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The value of reporting pressure–time integral data in addition to peak pressure data in studies on the diabetic foot: A systematic review

Bus¹,

Waaijman²

2013

Clinical Biomechanics

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Linear dependence of peak, mean, and pressure–time integral values in plantar pressure images

Cited by 52 publications

References 9 publications

In-Shoe Plantar Pressures and Ground Reaction Forces During Overweight Adults' Overground Walking

In-Shoe Plantar Pressures and Ground Reaction Forces During Overweight Adults' Overground Walking

Plantar Footprints Analysis - Case Study (Part 1)

The value of reporting pressure–time integral data in addition to peak pressure data in studies on the diabetic foot: A systematic review

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