Normal pressure values and repeatability of the Emed® ST4 system

Putti, Amit; Arnold, Graham; Cochrane, Lindy; Abboud, Rami

doi:10.1016/j.gaitpost.2007.06.009

Cited by 122 publications

(103 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These effect magnitudes were considered subtle, compared to the random fluctuations expected from repeated measures in this type of experimental design [21,22]. The most prominent differences between SKIN and PIN occurred in kinematic data with up to 25% of ROM (~2-3°).…”

Section: Discussionmentioning

confidence: 99%

The effect of intracortical bone pin application on kinetics and tibiocalcaneal kinematics of walking gait

et al. 2017

View full text Add to dashboard Cite

Bone anchored markers using intracortical bone pins are one of the few available methods for analyzing skeletal motion during human gait in-vivo without errors induced by soft tissue artifacts.However, bone anchored markers require local anesthesia and may alter the motor control and motor output during gait. The purpose of this study was to examine the effect of local anesthesia and the use of bone anchored markers on typical gait analysis variables. Five subjects were analyzed in two different gait analysis sessions. In the first session, a protocol with skin markers was used. In the second session, bone anchored markers were added after local anesthesia was applied. For both sessions, three dimensional infrared kinematics of the calcaneus and tibia segments, ground reaction forces, and plantar pressure data were collected. 95% confidence intervals and boxplots were used to compare protocols and assess the data distribution and data variability for each subject. Although considerable variation was found between subjects, withinsubject comparison of the two protocols revealed non-systematic effects on the target variables.Two of the five subjects walked at reduced gait speed during the bone pin session, which explained the between-session differences found in kinetic and kinematic variables. The remaining three subjects did not systematically alter their gait pattern between the two sessions. Results support the hypothesis that local anesthesia and the presence of bone pins still allow a valid gait pattern to be analyzed.

show abstract

Section: Discussionmentioning

confidence: 99%

The effect of intracortical bone pin application on kinetics and tibiocalcaneal kinematics of walking gait

et al. 2017

View full text Add to dashboard Cite

show abstract

“…To the authors' knowledge, extensive data are lacking in the literature. Compared to the standard procedures specified by the manufacturer, Oosterlinck et al (2009) used a refined calibration technique as described by Putti et al (2008) whereby a static measurement was performed with a person standing on the PP on one limb. Subsequently, the recalibration factor was fine-tuned until the recorded vertical force was equivalent to the bodyweight of that person.…”

Section: Discussionmentioning

confidence: 99%

Comparison of pressure plate and force plate gait kinetics in sound Warmbloods at walk and trot

Oosterlinck

Pille

Huppes

et al. 2010

The Veterinary Journal

View full text Add to dashboard Cite

a b s t r a c tModern pressure plates (PP) could be an alternative to traditional force plates (FP) for quantitative equine gait analysis, thereby providing the clinician with objective data on the horse's gait while unravelling the loading of different regions of the hoof during the stance phase. The aim of this study was to determine whether a stand-alone PP allows reliable measurement of gait kinetics, compared to simultaneously recorded FP variables. Six sound Warmblood horses were walked and trotted over a combined PP and FP system for collection of a set of five valid kinetic measurements for each forelimb. A measurement was considered valid if the horse was moving in a straight line at a constant pace while gait velocity was within a preset range and the hoof fully contacted the plate surface.Significant differences between FP and PP data were seen for peak vertical force (PVF), vertical impulse (VI), time at which the PVF occurs (tPVF) and forelimb symmetry ratios (SymPVF and SymVI) (P < 0.05), but not for stance phase duration (ST). Nevertheless, mean agreement indices (AIs) of ST, tPVF and SymP-VF and SymVI were excellent (P0.92), whereas AIs of PVF and VI were moderate (P0.70). The excellent agreement between PP and FP symmetry ratios confirms that observed differences between PP and FP in symmetry ratios are small (2-7%), especially when compared to the expected decrease in symmetry associated with mild lameness (>20%). The results indicate that a stand-alone pressure plate can be used to measure absolute (ST) and relative (tPVF) temporal variables and loading symmetry ratios and offers equine veterinarians a mobile, cost-efficient and quick gait evaluation method for routine clinical use. However, the system cannot be used interchangeably with a force plate to measure absolute values of limb loading.

show abstract

“…The pressure values and stabilometric measurements, such as the ones based on the centre of pressure (Putti et al 2008;Maetzler et al 2010), were acquired with this device at 25 Hz.…”

Section: Instrumentsmentioning

confidence: 99%

Cognitive predictors of balance in Parkinson’s disease

Fernandes

Mendes

Rocha

et al. 2016

Somatosensory & Motor Research

View full text Add to dashboard Cite

Postural instability is one of the most incapacitating symptoms of Parkinson's disease (PD) and appears to be related to cognitive deficits. This study aims to determine the cognitive factors that can predict deficits in static and dynamic balance in individuals with PD. A sociodemographic questionnaire characterized 52 individuals with PD for this work. The Trail Making Test, Rule Shift Cards Test, and Digit Span Test assessed the executive functions. The static balance was assessed using a plantar pressure platform, and dynamic balance was based on the Timed Up and Go Test. The results were statistically analysed using SPSS Statistics software through linear regression analysis. The results show that a statistically significant model based on cognitive outcomes was able to explain the variance of motor variables. Also, the explanatory value of the model tended to increase with the addition of individual and clinical variables, although the resulting model was not statistically significant The model explained 25-29% of the variability of the Timed Up and Go Test, while for the anteroposterior displacement it was 23-34%, and for the mediolateral displacement it was 24-39%. From the findings, we conclude that the cognitive performance, especially the executive functions, is a predictor of balance deficit in individuals with PD. ARTICLE HISTORY

show abstract

Normal pressure values and repeatability of the Emed® ST4 system

Cited by 122 publications

References 16 publications

The effect of intracortical bone pin application on kinetics and tibiocalcaneal kinematics of walking gait

The effect of intracortical bone pin application on kinetics and tibiocalcaneal kinematics of walking gait

Comparison of pressure plate and force plate gait kinetics in sound Warmbloods at walk and trot

Cognitive predictors of balance in Parkinson’s disease

Contact Info

Product

Resources

About