Bipedal Perils for Patients: Peak Braking and Propulsive Forces in Gradient Walking

Keywords trauma patients, ground reaction forces, pressure distribution, real life motion patterns Background: Protecting a healing injury to the lower extremity often requires limiting the forces applied through ambulation. Lower extremity postoperative patients navigate a wide variety of terrains and obstacles once they regain mobility but are still in recovery. These terrains influence the peak […]

Hidden Markov Model-Based Smart Annotation for Benchmark Cyclic Activity Recognition Database Using Wearables

Abstract Activity monitoring using wearables is becoming ubiquitous, although accurate cycle level analysis, such as step-counting and gait analysis, are limited by a lack of realistic and labeled datasets. The effort required to obtain and annotate such datasets is massive, therefore we propose a smart annotation pipeline which reduces the number of events needing manual adjustment […]

Unsupervised gait retraining using a wireless pressure-detecting shoe insole

Background The knee adduction moment (KAM) is a surrogate measure of mediolateral distribution of loads across the knee joint and is correlated with progression and severity of knee osteoarthritis (OA). Existing biomechanical approaches for unloading the arthritic medial knee compartment vary in their effectiveness in reducing KAM. This study employed a completely wireless, pressure-detecting shoe […]

Medializing the Center of Pressure to Offload the Knee and Decelerate Osteoarthritis: Fact or Fiction

Introduction Gait modification, a well-accepted non-surgical strategy for management of knee osteoarthritis, attempts to decelerate osteoarthritis progression by offloading the knee joint. To achieve this, modified gait patterns which reduce the knee adduction moment (KAM), a validated surrogate of load distribution across medial and lateral knee compartment, are frequently attempted. Medializing foot center of pressure […]

Postural Control as Predictor of Lower Extremity Injuries in Male Youth Soccer Players

Abstract Youth soccer players bear a particular high risk of injury due to a potential lack on an adequate level of physical fitness, which is considered as an intrinsic risk factor for injuries (Bahr & Krosshaug, 2005). Typically, lower extremity injuries occur in situations characterised by rapid changes of direction and single-leg landing, often with […]

Can digital footprints capture clinically relevant gait endpoints in non-clinically setting? – A Proof of Concept

JOB OFFER Conclusions Using smart insoles we were able to quantify gait speed and stride variability. The potential value of smart-insoles is the portability of the technology that would enable their use outside of specialist gait clinics and potentially to monitor gait change in the individual’s home or residential care setting. These devices generate vast quantities […]

Possibilities And Limits Of Smart Insoles For The Application In The Area Of Sports And Healthcare

Conclusion Smart insoles offer a great advantage for individual and flexible ambulant usage in the form of continuous control for postoperative patients during their rehabilitation process. Smart insoles are characterized by very good handling and high comfort. Their performance is limited by the sole’s thickness, the external influences such as e.g. water, humidity, sweat or […]

Postoperative changes in gait pattern following 1st metatarsophalangeal joint fusion

Abstract To evaluate the changes in kinetic and temporospatial gait parameters following 1st metatarsalphalangeal joint (MTPJ) arthrodesis in a population with severe hallux valgus deformity. A novel, fully integrated and wireless sensor insole (OpenGo, Moticon, München, Germany) was used for gait analysis. Hallux valgus is one of the most common foot pathologies resulting in changes of […]

Adherence to in-home gait retaining using feedback from smartphone app

Purpose A high knee adduction moment (KAM) has repeatedly been linked to progression and severity of medial knee osteoarthritis (OA). It places higher than normal loads on the medial compartment of the knee and has become a target for biomechanical intervention. To lower KAM and slow OA progression, gait modification and retraining have been explored. […]

Pressure-based auditory feedback to reduce knee moment in subjects with medical knee osteoarthritis

Purpose The knee adduction moment (KAM) is a surrogate of medial compartment load during gait and is a target of conservative therapy for medial knee osteoarthritis (OA). Gait modifications have been shown to achieve KAM reduction, however, there has been limited experience with gait retraining methods outside the laboratory. In a previous study, we demonstrated […]

A new continuous gait analysis system for ankle fracture aftercare

Background Correct aftercare following lower extremity fractures remains a controversial issue. Reliable, clinically applicable weightbearing recommendations have not yet been defined. The aim of the current study was to establish a new gait analysis insole during physical therapy aftercare of ankle fractures to test patients’ continuous, longterm compliance to partial weight-bearing restrictions and investigate whether […]

How Do Individuals Following Anterior Cruciate Ligament Reconstruction Load Their Limbs Outside The Laboratory?

Conclusion While average loading differences between limbs were observed, individual data suggest that some individuals 111 days post ACLr preferentially underloaded the surgical limb during bilateral squat and daily activities while others do not. Positive relationship between LSIlab and LSIday suggests that those who underload the surgical limb throughout the day also underload during a […]

Long-term pathological gait pattern changes after talus fractures – dynamic measurements with a new insole

Purpose The aim of the current study was to describe long-term gait changes after talus fractures, identify patterns associated with poor outcome and discuss possible treatment options based on dynamic gait analysis. Methods Twenty-seven patients were followed-up clinically and via gait analysis after talus fracture osteosynthesis. Continuous dynamic pedobarography with a gait analysis insole was […]

Biomechanical parameters to evaluate the outcome of total knee arthroplasty (TKA)

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Assymetry of foot pressure for transfemoral amputees during gait in real world

JOB OFFER Keywords Gait analysis, amputee Abstract The prosthetic socket is the most important compartment of the prostheses for transfemoral amputees. Nowadays, the ischial containment socket (ICS) and anatomical socket (ANA) have been widely used as prosthetic socket for transfemoral amputee. Some studies have showed differences of biomechanical features between the sockets, such as range […]

A “smart” pressure insole for gait retaining outside of the laboratory

Introduction Load distribution shifts from the lateral to the medial compartment is related to an increase in knee adduction moment (KAM) and is associated with knee osteoarthritis (OA). previously, reduction in KAM occur when barefoor plantar pressure is medialized. This supports the role of altering kinematics of the forr to redistribute loads across the knee […]

Dynamic valgus during drop landing results in decreased lateral plantar pressure

Introduction Anterior ruciate ligament (ACL) injuries are highly debilitating and commonly occur in sporting activities involving sudden stops and change of directon. Following ACL reconstruction (ACL-R) re-injury rates to the ipsilateral or contralateral knee are as high as 31%. Movement asymmetries such as increased dynamic valgus at the knee during sport-specific tasks such as the box […]

Weight-bearing recommendations after operative fracture treatment – fact or fiction? Gait results with and feasibility of a dynamic, continuous pedobarography insole

Purpose Rehabilitation after lower-extremity fractures is based on the physicians’ recommendation for non-, partial-, or full weight-bearing. Clinical studies rely on this assumption, but continuous compliance or objective loading rates are unknown. The purpose of this study was to determine the compliance to weight-bearing recommendations by introducing a novel, pedobarography system continuously registering postoperative ground […]

PD_Manager: an Health platform for Parkison’s disease patient management

Abstract PD_Manager is a mobile health platform designed to cover most of the aspects regarding the management of Parkinson’s disease (PD) in a holistic approach. Patients are unobtrusively monitored using commercial wrist and insole sensors paired with a smartphone, to automatically estimate the severity of most of the PD motor symptoms. Besides motor symptoms monitoring, […]

Biofeedback in Partial Weight Bearing: Usability of Two Different Devices from a Patient’s and Physical Therapist’s Perspective

Background Partial weight bearing is frequently instructed by physical therapists in patients after lowerlimb trauma or surgery. The use of biofeedback devices seems promising to improve the patient’s compliance with weight-bearing instructions. SmartStep and OpenGo-Science are biofeedback devices that provide real-time feedback. For a successful implementation, usability of the devices is a critical aspect and […]

Plantar Pressure Distribution And Gait Stability: Normal vs. High Heel

Abstract In this paper, the plantar pressure distribution and the center of pressure movement were studied and gait stability of high heels versus normal heels was observed. A group of ten young female participants without any previous lower limbs injuries were asked to wear shoes of different heel heights, namely, 0cm, 2cm and 4cm and […]

Monitoring of motor and non-motor symptoms of Parkinson’s disease through a mHealth platform

Abstract Parkinson’s disease (PD) is a complex, chronic disease that many patients live with for many years. In this work we propose a mHealth approach based on a set of unobtrusive, simple-in-use, off-the-self, co-operative, mobile devices that will be used for motor and non-motor symptoms monitoring and evaluation, as well as for the detection of […]

Field Test: Results of tandem walk performance following long-duration spaceflight

Abstract The Tandem Walk data collected as part of the FT experiment will provide invaluable information on the performance capabilities of astronauts during the first 24 hours after returning from long-duration spaceflight that can be used in planning future Mars, or other deep-space missions with unassisted landings. FT will determine the average sensorimotor recovery timeline […]

“Open-Go-Science” for better adaption and rehabilitation after fractures and operations of the lower extremities

Zusammenfassung Die Verordnung von Teilbelastung ist ein alltägliches und anerkanntes Behandlungskonzept in der Medizin. Es existieren allerdings keine verlässlichen Daten über die heilungsoptimierte BKK und Dauer der Teilbelastung. Um dies herauszufinden stellt die Protokollierung der BKK und Mobilität postoperativer Patienten unter Teilbelastung eine denkbare Lösung dar. Mit Hilfe dieser Daten sollte es möglich sein, Schlussfolgerungen […]

A novel tool for continuous fracture aftercare – Clinical feasibility and first results of a new telemetric gait analysis insole

Background Weight bearing after lower extremity fractures still remains a highly controversial issue. Even in ankle fractures, themost common lower extremity injury no standard aftercare protocol has been established. Average non weight bearing times range from 0 to 7 weeks, with standardised, radiological healing controls at fixed time intervals. Recent literature calls for patient-adapted aftercare […]

Gait Analysis on the move: The Infinite Gait Walkway

Abstract In order to analyze human gait patterns, highly accurate data must be collected at high frame rates. The state of the art is to deploy a carpet-like structure instrumented with pressure sensors, which allows for measuring position, orientation and pressure of each foot at each step. Since such gait “walkway carpets” are highly expensive […]

Instrumented insole for weight measurement of frail people

Abstract In this paper, we describe an instrumented shoe insole designed to collect the weight data of a person during his or her daily activities. This research is within a more global project about new wearable systems for monitoring human health status. The work presented compares two solutions: one based on a force-sensing resistor and […]