Unrestricted Mobility Research Articles

Chronic shoulder instability using the Latarjet technique: About 20 cases

This retrospective study included 20 patients operated on in the Traumatology and Orthopedics Surgery Department (A) of the HASSAN II University Hospital in Fez, treated with a LATARJET · between January 2016 and December 2023, a 5-year period · In our series, the mean age at surgery was 27 years. · Male predominance was evident, with a traumatic context found in 90% of cases. · The apprehension test was positive in 65% of cases. · Our patients underwent a systematic standard preoperative radiological work-up. · We opted for the LATARJET technique · Elbow-to-body immobilization for 21 days post-operatively. · They were followed up in consultation with a 5-year follow-up. The results of our series are very satisfactory according to the ROWE score: · -85% of patients complained of no pain. Stability was perfect in 18 cases (90%). · -Unrestricted mobility was restored in 80% of cases. · -Only one case of recurrence (5%) · One patient with postoperative osteoarthritis, corresponding to 5%. In all, we had 85% good and excellent results, versus 15% fair and poor results. The results of this study are similar to those found in the literature, confirming that the LATARJET technique is the most reliable in the treatment of anterior shoulder instability, with good functional results and the fewest complications.

Deployment and validation of a smart bed architecture for untethered patients with wireless biomonitoring stickers.

Conventional patient monitoring in healthcare has limitations such as delayed identification of deteriorating conditions, disruptions to patient routines, and discomfort due to extensive wiring for bed-bound patients. To address these, we have recently developed an innovative IoT-based healthcare system for real-time wireless patient monitoring. This system includes a flexible epidermal patch that collects vital signs using low power electronics and transmits the data to IoT nodes in hospital beds. The nodes connect to a smart gateway that aggregates the information and interfaces with the hospital information system (HIS), facilitating the exchange of electronic health records (EHR) and enhancing access to patient vital signs for healthcare professionals. Our study validates the proposed smart bed architecture in a clinical setting, assessing its ability to meet healthcare personnel needs, patient comfort, and data transmission reliability. Technical performance assessment involves analyzing key performance indicators for communication across various interfaces, including the wearable device and the smart box, and the link between the gateway and the HIS. Also, a comparative analysis is conducted on data from our architecture and traditional hospital equipment. Usability evaluation involves questionnaires completed by patients and healthcare professionals. Results demonstrate the robustness of the architecture proposed, exhibiting reliable and efficient information flow, while offering significant improvements in patient monitoring over conventional wired methods, including unrestricted mobility and improved comfort to enhance healthcare delivery.

Interaction of unrestricted mobility, perceived discrimination, and self-critical perfectionism on depressive symptoms of Asian American college students.

Interaction of unrestricted mobility, perceived discrimination, and self-critical perfectionism on depressive symptoms of Asian American college students.

Spinal infection after vertebral augmentation: a covert complication with serious havoc.

Vertebral augmentation, including percutaneous vertebroplasty (PVP) or kyphoplasty (PKP), is the current least invasive surgical option and has been widely used to treat the painful osteoporotic vertebral compression fractures (OVCF). However, the postoperative infections could be life-threatening, even though they rarely occur. Our studies aim to clarify the causation and outcomes of spinal infections following augmentation and meanwhile to identify the risk factors. A retrospective study was conducted on patients with OVCF who underwent PVP or PKP, and were subsequently admitted to our institution with postoperative spinal infection between January 2010 and December 2022. A total of 33 patients were finally included. The rate of spinal infection after augmentation in our single institute was 0.05% (2/3893). In addition to these 2 patients, the remaining 31 were referred from other hospitals. All 33 patients exhibited elevated inflammatory parameters, 14 patients presented with fever, and 9 patients experienced neurological deficits. Additionally, 29 patients had comorbidity and risk factors. Pathogens were identified in 26 patients, while only 7 patients were examined as culture negative. 27 patients underwent revision surgery and 6 patients only received conservative therapy. Anterior surgery was performed in 2 patients, while posterior surgery was performed in 20 patients. A combined anterior-posterior surgery was performed in 5 patients. At the final follow-up, 18 patients had unrestricted mobility, 10 patients required assistance from crutches or a walker for ambulation, 4 patients needed a wheelchair, and 1 patients died after revision surgery. Spinal infection after vertebral augmentation is rare, but it cannot be ignored. Surgeons should make every effort to detect the potential preoperative spondylitis or discitis. Once postoperative spinal infection is confirmed, a prompt intravenous antibiotic therapy is warranted. If medication therapy fails, revision surgery involving debridement and spinal reconstruction should be considered.

CENTENARIAN PHYSICAL FUNCTION EVOLUTION AND COVID-19 IMPACT: A STUDY IN JAPAN

Abstract Studies show that centenarians’ physical function and ADL levels improved in the recent cohort. However, it is unclear whether this positive trend has altered due to the COVID-19 pandemic. Recent studies indicated that physical function decreased even in younger older adults because of the limited daily activity during the pandemic period. Is this true for centenarians? This study has two aims: firstly, to investigate whether the physical function of Japanese centenarians has improved over the years; secondly, to examine the impact of COVID-19. We used the data collected from 2014 to the present day in Kyotango City. The City Hall has been collecting data including the functional status of all centenarians who turned 100 years old every year. In this study, we divided nine years into three periods: 2014-2016 (P1), 2017-2019 (P2), and 2020-2022 (P3). For each period the number of participants was 122, 116, and 153. The results revealed that the prevalence of bedridden centenarians showed an upward trend over the years. Concurrently, the proportion of centenarians capable of unrestricted mobility exhibited an upward trajectory from P1 to P2, followed by a subsequent decrease from P2 to P3. In conclusion, if there was no COVID-19 pandemic, the functional level of Japanese centenarians could be improved over the years. At the same time, the gradually increasing trend of bedridden centenarians might indicate intensive medical and institutional care enables centenarians with fragile conditions to survive.

Ideological and Experiential Predictors of Asian Americans’ Attitudes Towards Black Americans

Drawing on the theories of Kim’s racial triangulation and Allport’s intergroup contact, this study examined ideological and experiential predictors of Asian Americans’ interracial attitudes and solidarity with Black Americans. In a community sample of 249 Asian Americans, hierarchical multiple regression analyses revealed that the ideological variables of internalized racism and model minority myth were associated with greater anti-Black attitudes. Internalized model minority myth of unrestricted mobility was also related to reduced intergroup solidarity. Conversely, the experiential variables of close and general contact with Black Americans were respectively related to greater pro-Black attitudes and intergroup solidarity. Additionally, higher quality of general contact buffered the negative association between internalized model minority myth and intergroup solidarity. The findings highlight the importance of deconstructing internalized racial beliefs rooted in White supremacy and cultivating quality intergroup contact between Black and Asian Americans. Implications for practice, community intervention, training, and research are discussed.

Accelerated inter/intra-layer electron transport by asymmetric metal site induced delocalization effect for photoelectrocatalytic water oxidation

Charge transfer at the primary catalyst, co-catalyst, and solution interface is fundamental for photoelectrocatalytic water oxidation. In this paper, we propose a strategy to create a co-catalyst comprised of zinc-cobalt diatomic sites on a nitrogen-doped carbon matrix (CoZn-NC) and load it on BiVO4, called CoZn-NC/BVO. Asymmetrically-doped nitrogen-carbon layer materials of Zn and Co (CoZn-NC) can enable the unrestricted mobility of lone pairs of electrons in metals upon exposure to light irradiation, which results in interlayer polarization and electron delocalization effects, leading to improved charge separation efficiency. Furthermore, due to the synergistic effect of bimetallic doping, not only does the intralayer polarized electric field formed on the surface of CoZn-NC improve the charge injection efficiency, but it also modulates the d-band center of the active site Co, thus reducing the Gibbs free energy of the reaction. The results show that the oxygen reduction reaction of CoZn-NC/BVO is excellent, with a photocurrent density of 5.84 mA cm−2 at 1.23 V vs. RHE, which is 4.35 and 2.1 times higher than that of BiVO4 and Co-NC/BVO, respectively. The charge separation and charge injection efficiencies were also significantly higher, at 84.89 % and 91.97 %, respectively. Overall, the proposed co-catalyst of CoZn-NC/BVO shows great potential in photoelectrocatalytic water oxidation and provides a valuable contribution to the field.

Better Mobility Is Associated With Higher Incomes and Longer Working Years Among Older Adults.

Robust physical mobility is the key to healthy independent aging. Although the association between socioeconomic status and health is well documented, it is unclear whether there is a relationship between mobility and income, because income data are not readily available. (1) Do individuals with better mobility have higher incomes? (2) Does maintaining mobility over time allow individuals to keep working? (3) Is exercise associated with higher mobility over time? We obtained longitudinal income and health data from the nationally representative Health and Retirement Study. Three cohorts were used. First, we studied the relationship between household income and mobility (on a 6-point index of walking impairment) in 19,430 adults who were assessed in 2016 (representing 93% of the 20,805-person total cohort). We measured the association of mobility and household income in a multivariate linear regression analysis of age, gender, health conditions, and education. We then identified a second group of 1094 individuals with unrestricted mobility in the year 2000 and compared differences in income and working rates between those who maintained mobility and those who lost mobility after 10 years. Finally, we identified a third group of 7063 individuals who were 60 to 80 years old in 2012, divided the group by how often they engaged in exercise, and observed differences in mobility after 4 years. After adjusting for covariates, a drop of one level of mobility was associated with a USD 3410 reduction in annual household income (95% CI USD 2890 to USD 3920; p < 0.001). After 10 years, individuals who maintained their mobility had incomes that were USD 6500 higher than that of individuals who were not working (95% CI USD 2300 to USD 10,300; p < 0.001) and were more likely to be working (40% versus 34.5%; p < 0.001). Exercising at least once per week was associated with better mobility 4 years later (mobility score 4.46 ± 0.08 versus 3.66 ± 0.08; p < 0.001). Better mobility was associated with more than USD 3000 in annual income. Regular exercise and other interventions that improve mobility may have meaningful returns on investment. Because greater mobility is strongly associated with higher income, orthopaedic interventions may be undervalued.

Implant-associated fracture of the tibial plateau in cementless medial unicondylar knee prosthesis : Locking plate osteosynthesis

Cementless medial unicondylar knee prostheses with mobile inlays have proved to be successful and are increasingly being used worldwide; however, there is a risk of fracture of the medial tibial plateau in the postoperative healing phase. In most cases we observed split fractures starting from the keel of the implant. These can be treated with a small posteromedial locking plate, whereby the upper screws are inserted through the keel slot and then interlocked. This achieves an optimally strong bond between the implant and the screws and a stable construct. A longitudinal skin incision is made at the level of the keel slot. A radial T‑plate is placed subcutaneously. The plate is fixed with a lag screw in the middle section. The compression usually closes the fracture gap. Then three locking cortical bone screws are inserted through the keel slot in the transverse section of the plate. Distal fixation by locking or standard screws. Immediate pain-adapted partial weight bearing, unrestricted mobility. Healing of the fracture and full weight bearing mostly achieved after 4weeks.

Slicing who slices: Anonymization quality evaluation on deployment, privacy, and utility in mix-zones

In the flowering of ubiquitous computing, technologies like the Internet of Things and the Internet of Vehicles have contributed to connecting objects and sharing location services in broad environments like smart cities bringing many benefits to citizens. However, these services yield massive and unrestricted mobility data of citizens that pose privacy concerns, among them recovering the identity of people with linking attacks. Although several privacy mechanisms have been proposed to solve anonymization problems, there are few studies about their behavior and analysis of the data quality anonymized by these techniques. This paper presents an anonymization quality framework for mix-zones enabling characterizing and evaluating the impacts of anonymization over time and space in mobility data. We conducted experiments with a cab mobility dataset and two positioning algorithms to explore one of the potentialities of the anonymization quality: elect mix-zones that do not consider the traffic but its operating requirements too. The results showed that the anonymization quality enabled the selection of mix-zones that yield data anonymization considering the quality, privacy, and utility analysis. This study is unique because it analyzes mix-zone coverage and quality metrics to observe the anonymization quality not found in the literature.

Acculturation/enculturation and internalized model minority myth in Korean immigrant families.

Drawing on Bronfenbrenner's ecological systems theory (1977), this study examined the antecedents and outcomes of internalized model minority myth (MMM) within the microsystem of family and the macrosystem of culture. Among Korean immigrant families, we examined how mothers' internalized MMM (i.e., achievement orientation, unrestricted mobility) and youth's cultural orientations (i.e., acculturation, enculturation) were related to youth's internalized MMM and had direct and indirect relations to youth outcomes (i.e., life satisfaction, depression, antisocial behaviors, and academic performance). In a sample of 334 Korean immigrant mother-youth dyads (155 female youth; 132 foreign-born youth; Mage of youth = 16.37; Mage of mothers = 46.94), we conducted a path analysis by using the maximum likelihood and bootstrapping methods. A path analysis revealed mothers' achievement orientation was indirectly related to youth's academic performance via youth's beliefs in unrestricted mobility. In general, mothers' internalized MMM had harmful relationships to youth's depression and antisocial behaviors versus mixed relationships to academic performance. Importantly, mothers' internalized MMM indicated greater direct and indirect associations with youth outcomes than youth's own internalized MMM. A follow-up analysis of moderated mediation ruled out the possibility that academic performance moderated the relations of youth's internalized MMM and outcomes and thus masked any significant associations. Overall, the current findings highlighted the importance of understanding the internalized MMM within the microsystem of the close-knit Korean immigrant family relations. Implications for research, family intervention, parent education and outreach were discussed.

Assessment of Gait Following Locking Plate Fixation of a Tibial Segmental Defect and Cast Immobilization in Goats

The purpose of this study was to analyze the effects of locking plate fixation used for bridging of tibial segmental ostectomy and of cast immobilization on gait biomechanics in goats. We hypothesized that stable fixation of a segmental bone defect, using a locking plate construct, would result in minimal changes in biomechanical variables of gait in goats, but full-limb immobilization would result in lasting alterations in the immobilized limb’s gait kinetics. A pressure-sensing walkway was used to measure biomechanical characteristics for stride, gait, and walking vertical force. Thirteen, non-lame adult Boer-cross goats were trained to walk over a pressure-sensing walkway prior to instrumentation. Segmental ostectomy was performed on the right hind tibia of each goat and the defect was stabilized using bridging plate fixation with a locking compression plate. Per the protocol of an ongoing orthopedic study, the same goats underwent right hindlimb cast immobilization between one and four months postoperatively. Data was collected preoperatively and then over twelve months postoperatively in goats with unrestricted mobility. Statistical analysis revealed no significant alterations in hindlimb kinematics or maximum force when comparing the period after surgery with that after cast immobilization; significant decreases in forelimb stride length and velocity were noted postoperatively but normalized prior to cast placement, suggesting the overall functional stability of fixation. Cast immobilization had a profound and sustained effect on gait with significant alterations in both forelimb kinetics and hindlimb kinetics and kinematics for the remainder of the trial period; increased hindlimb asymmetry characterized by greater weight distribution and impulse to the left hindlimb was observed, suggesting the potential for long-term and/or permanent detrimental effects of prolonged limb immobilization.

Investigating the two-way relationship between mobility flows and COVID-19 cases.

Following a pandemic disease outbreak, people travel to areas with low infection risk, but at the same time the epidemiological situation worsens as mobility flows to those areas increase. These feedback effects from epidemiological conditions to inflows and from inflows to subsequent infections are underexplored to date. This study investigates the two-way relationship between mobility flows and COVID-19 cases in a context of unrestricted mobility without COVID-19 vaccines. To this end, we merge data on COVID-19 cases in Spain during the summer of 2020 at the province level with mobility records based on mobile position tracking. Using a control function approach, we find that a 1% increase in arrivals translates into a 3.5% increase in cases in the following week and 5.6% ten days later. A simulation exercise shows the cases would have dropped by around 64% if the Second State of Alarm had been implemented earlier.

The Role of Model Minority Stereotype on General Self-Efficacy and Depressive Symptoms

The model minority stereotype (MMS) is a belief that Asian Americans’ comparative success comes from their hard-work and perseverance, coupled with a lack of barriers such as racism or discrimination against Asian Americans. In this study, we hypothesized that because the MMS demands cognitive energy, the use of self-efficacy as a regulator for depressive symptoms is then limited. Participants included 199 self-identified Asian American college students. A moderation effect of the MMS on the relationship between general self-efficacy and depressive symptoms was tested. Participants with low to above average Unrestricted Mobility (UM), a component of the MMS, displayed a regulating effect of self-efficacy on depressive symptoms, which was not found for individuals with higher UM. Although the variance of moderation effect was small (2%), this study is the first to suggest the effect of self-efficacy in lowering depressive symptoms may depend on the level of UM. Other findings and implications are further discussed.

Simulating the effects of mobility restrictions in the spread of SARS-CoV-2 in metropolitan areas in Portugal.

Commuting flows and long-distance travel are important spreading factors of viruses and particularly airborne ones. Therefore, it is relevant to examine the association among diverse mobility scenarios and the spatial dissemination of SARS-CoV-2 cases. We intended to analyze the patterns of virus spreading linked to different mobility scenarios, in order to better comprehend the effect of the lockdown measures, and how such measures can be better informed. We simulated the effects of mobility restrictions in the spread of SARS-CoV-2 amongst the municipalities of two metropolitan areas, Lisbon (LMA) and Porto (PMA). Based on an adapted SEIR (Suscetible-Exposed-Infected-Removed) model, we estimated the number of new daily infections during one year, according to different mobility scenarios: restricted to essential activities, industrial activities, public transport use, and a scenario with unrestricted mobility including all transport modes. The trends of new daily infections were further explored using time-series clustering analysis, using dynamic time warping. Mobility restrictions resulted in lower numbers of new daily infections when compared to the unrestricted mobility scenario, in both metropolitan areas. Between March and September 2020, the official number of new infections followed overall a similar timeline to the one simulated considering only essential activities. At the municipal level, trends differ amongst the two metropolitan areas. The analysis of the effects of mobility in virus spread within different municipalities and regions could help tailoring future strategies and increase the public acceptance of eventual restrictions.

A paradigm for secure object access and unrestricted mobility in distributed systems

In distributed architectures consisting of processing nodes, we associate a node chain with each object. The node chain connects a node named in the object identifier to the nodes reserving secondary and primary memory space for the object. No restriction exists on object movements across the network. A process can access a given object only if it holds a security gate referencing this object. The gate includes a password and the specification of an access authorisation. Gate weakening and revocation are fully supported.

Asian American people's intragroup and intergroup collective action: Identifying key correlates.

The present study advanced prior research by examining key correlates of Asian American people's intragroup and intergroup collective action. Building on prior research, this study tested a model of the unique relations of experiences of discrimination, model minority beliefs, intragroup solidarity, and intergroup solidarity with other people of color as correlates of Asian American people's intragroup and intergroup collective action. Single-indicator latent variable path analysis explained 59% and 44% of the variance in intergroup collective action and intragroup collective action, respectively. Experiences of discrimination had a significant unique positive link with both intragroup collective action and intergroup collective action. Model minority achievement orientation beliefs had a significant unique negative link with both intragroup collective action and intergroup collective action. Model minority unrestricted mobility beliefs did not have a significant unique link with either intragroup collective action or intergroup collective action. Intragroup solidarity had a significant unique positive direct link with intragroup collective action, but no unique significant link with intergroup collective action. Intergroup solidarity had a significant unique positive direct link with both intergroup collective action and intragroup collective action. These findings reveal potential points of intervention to foster Asian American people's engagement in intergroup and intragroup collective action. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Smart Wheelchair Based on IoT for Disabled and Elderly People

Abstract: Pervasive devices are becoming an integral part of people's daily lives. Smart gadgets make people's lives easier and are becoming an essential part of the lives of physically tested and matured people. The need for safe and unrestricted mobility for the elderly and physically challenged is critical. The study deals with the creation of an Intelligent Wheel-Chair (IWC) that focuses on a certain issue in an exceptionally moderate and prominent manner.Wheel-Chair is controlled by RTOS as its center working framework. It comprises of touchscreen based route navigation alongside obstacle avoidance and fall identification. As a result with voice command movement of the wheel chair is dependent which will help disable and old aged people. The Node MCU used successfully detected the commanded and he Arduino micro-controller used in this project has successfully delivered its purpose.

Analysis of Energy Consumption in Wireless Body Area Network Usingmac Protocols (baseline And Smac)

Abstract A Wireless Body Area Network (WBAN) is a short-range network that consists of a coordinator and a gathering of low-power sensors that can be embedded in, or attached to the human body. A WBAN can be used for a diversity of new uses which including online health control, home/health care, pharmacy, multimedia, and sports, among many more, all of which take advantage of the unrestricted mobility that WBANs can provide. In the medical industry, for example, a patient may be fitted with a WBAN of sensors that continuously track basic biological functions including temperature, blood pressure, heart rate, electrocardiogram (ECG), breathing, and so on. The patient does not have to lie in bed and can move around freely in the room or even leave the hospital for a short period of time. This increases the patient's feature of life while further lowering treatment costs. Furthermore, evidence gathered over a prolonged period of time and in the patient's natural habitat provides more useful knowledge, allowing for a more definitive and, in some cases, quicker diagnosis. Sensors connected to the human body are normally battery-powered devices with brief lifetimes. Institute of Electrical and Electronics Engineers (IEEE) 802.15.6 standard is the typical choice for low power ingestion and reliable short-range communication for Wireless Body Sensor Networks (WBSNs). The effects are demonstrated using the Omnet++ simulator and its Castalia extension for WBANs

Preliminary evaluation of SaCoVLM\u2122 video laryngeal mask airway in airway management for general anesthesia

BackgroundTo preliminary evaluate the application of SaCoVLM™ video laryngeal mask airway in airway management of general anesthesia.MethodsWe recruited 100 adult patients (ages 18–78 years, male 19, female 81, weight 48–90 kg) with normal predicted airway (Mallampati I ~ II, unrestricted mouth opening, normal head and neck mobility) and ASA I-II who required general anaesthesia. The SaCoVLM™ was inserted after anesthesia induction and connected with the anesthesia machine for ventilation. Our primary outcome was glottic visualization grades. Secondary outcomes included seal pressure, success rate of insertion, intraoperative findings (gastric reflux and contraposition), gastric drainage and 24-h complications after operation.ResultsThe laryngeal inlet was exposed in all the patients and shown on the video after SaCoVLM™ insertion. The status of glottic visualization was classified: grade 1 in 55 cases, grade 2 in 23 cases, grade 3 in 14 cases and grade 4 in 8 cases. The first-time success rate of SaCoVLM™ insertion was 95% (95% CI = 0.887 to 0.984), and the total success rate was 96% (95% CI = 0.901 to 0.989). The sealing pressure of SaCoVLM™ was 34.1 ± 6.2 cmH2O and the gastric drainage were smooth. Only a small number of patients developed mild complications after SaCoVLM™ was removed (such as blood stains on SaCoVLM™ and sore throat).ConclusionsThe SaCoVLM™ can visualize partial or whole laryngeal inlets during the surgery, with a high success rate, a high sealing pressure and smooth gastroesophageal drainage. SaCoVLM™ could be a promise new effective supraglottic device to airway management during general anesthesia.Trial registrationChiCTR,ChiCTR2000028802.Registered 4 January 2020.