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2.
BMC Public Health ; 24(1): 1290, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38734659

RESUMO

BACKGROUND: This study aimed to explore predictors associated with intermediate (six months) and post-intervention (24 months) increases in daily steps among people with prediabetes or type 2 diabetes participating in a two-year pedometer intervention. METHODS: A secondary analysis was conducted based on data from people with prediabetes or type 2 diabetes from two intervention arms of the randomised controlled trial Sophia Step Study. Daily steps were measured with an ActiGraph GT1M accelerometer. Participants were divided into two groups based on their response to the intervention: Group 1) ≥ 500 increase in daily steps or Group 2) a decrease or < 500 increase in daily steps. Data from baseline and from six- and 24-month follow-ups were used for analysis. The response groups were used as outcomes in a multiple logistic regression together with baseline predictors including self-efficacy, social support, health-related variables, intervention group, demographics and steps at baseline. Predictors were included in the regression if they had a p-value < 0.2 from bivariate analyses. RESULTS: In total, 83 participants were included. The mean ± SD age was 65.2 ± 6.8 years and 33% were female. At six months, a lower number of steps at baseline was a significant predictor for increasing ≥ 500 steps per day (OR = 0.82, 95% CI 0.69-0.98). At 24 months, women had 79% lower odds of increasing ≥ 500 steps per day (OR = 0.21, 95% CI 0.05-0.88), compared to men. For every year of increase in age, the odds of increasing ≥ 500 steps per day decreased by 13% (OR = 0.87, 95% CI 0.78-0.97). Also, for every step increase in baseline self-efficacy, measured with the Self-Efficacy for Exercise Scale, the odds of increasing ≥ 500 steps per day increased by 14% (OR = 1.14, 95% CI 1.02-1.27). CONCLUSIONS: In the Sophia Step Study pedometer intervention, participants with a lower number of steps at baseline, male gender, lower age or higher baseline self-efficacy were more likely to respond to the intervention with a step increase above 500 steps per day. More knowledge is needed about factors that influence response to pedometer interventions. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02374788.


Assuntos
Diabetes Mellitus Tipo 2 , Estado Pré-Diabético , Caminhada , Humanos , Diabetes Mellitus Tipo 2/terapia , Masculino , Feminino , Estado Pré-Diabético/terapia , Idoso , Pessoa de Meia-Idade , Caminhada/estatística & dados numéricos , Autoeficácia , Acelerometria
3.
Int J Behav Nutr Phys Act ; 21(1): 54, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38720323

RESUMO

BACKGROUND: Transportation policies can impact health outcomes while simultaneously promoting social equity and environmental sustainability. We developed an agent-based model (ABM) to simulate the impacts of fare subsidies and congestion taxes on commuter decision-making and travel patterns. We report effects on mode share, travel time and transport-related physical activity (PA), including the variability of effects by socioeconomic strata (SES), and the trade-offs that may need to be considered in the implementation of these policies in a context with high levels of necessity-based physical activity. METHODS: The ABM design was informed by local stakeholder engagement. The demographic and spatial characteristics of the in-silico city, and its residents, were informed by local surveys and empirical studies. We used ridership and travel time data from the 2019 Bogotá Household Travel Survey to calibrate and validate the model by SES. We then explored the impacts of fare subsidy and congestion tax policy scenarios. RESULTS: Our model reproduced commuting patterns observed in Bogotá, including substantial necessity-based walking for transportation. At the city-level, congestion taxes fractionally reduced car use, including among mid-to-high SES groups but not among low SES commuters. Neither travel times nor physical activity levels were impacted at the city level or by SES. Comparatively, fare subsidies promoted city-level public transportation (PT) ridership, particularly under a 'free-fare' scenario, largely through reductions in walking trips. 'Free fare' policies also led to a large reduction in very long walking times and an overall reduction in the commuting-based attainment of physical activity guidelines. Differential effects were observed by SES, with free fares promoting PT ridership primarily among low-and-middle SES groups. These shifts to PT reduced median walking times among all SES groups, particularly low-SES groups. Moreover, the proportion of low-to-mid SES commuters meeting weekly physical activity recommendations decreased under the 'freefare' policy, with no change observed among high-SES groups. CONCLUSIONS: Transport policies can differentially impact SES-level disparities in necessity-based walking and travel times. Understanding these impacts is critical in shaping transportation policies that balance the dual aims of reducing SES-level disparities in travel time (and time poverty) and the promotion of choice-based physical activity.


Assuntos
Exercício Físico , Meios de Transporte , Caminhada , Humanos , Colômbia , Meios de Transporte/métodos , Caminhada/estatística & dados numéricos , Impostos , Fatores Socioeconômicos , Cidades , Ciclismo/estatística & dados numéricos , Feminino , Masculino , Adulto
4.
PLoS One ; 19(5): e0301115, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38728334

RESUMO

BACKGROUND: Developmental coordination disorder (DCD) affects movement coordination, but little is known about how the condition impacts the behaviours of car drivers and pedestrians. AIMS: This study examined the self-reported driving and pedestrian behaviours of adults with Developmental Coordination Disorder (DCD). METHODS AND PROCEDURES: One hundred and twenty-eight participants (62 adults with DCD vs. 66 TD adults) responded to an online survey asking them about their perceptions of confidence and self-reported driving and pedestrian behaviours in the real-world. OUTCOMES AND RESULTS: Results suggested that adults with DCD felt less confident and reported more lapses in attention (e.g., forgetting where their car was parked) and errors (e.g., failing to check their mirrors prior to a manoeuvre) when driving compared to typically developed (TD) adults. Adults with DCD also reported feeling less confident and reported less adherence to road traffic laws (e.g., not waiting for a green crossing signal before crossing the road) when walking as pedestrians. CONCLUSIONS AND IMPLICATIONS: These results offer some much-needed insight into the behaviours of those with DCD outside of the laboratory environment and underline the need for research investigating the driving and pedestrian behaviours of individuals with DCD in 'real-world' contexts.


Assuntos
Condução de Veículo , Transtornos das Habilidades Motoras , Pedestres , Autorrelato , Humanos , Adulto , Feminino , Masculino , Condução de Veículo/psicologia , Pedestres/psicologia , Transtornos das Habilidades Motoras/psicologia , Transtornos das Habilidades Motoras/fisiopatologia , Adulto Jovem , Pessoa de Meia-Idade , Caminhada , Atenção/fisiologia , Adolescente , Inquéritos e Questionários
5.
J Gerontol Nurs ; 50(5): 35-42, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38691115

RESUMO

PURPOSE: To evaluate the long-term effect of a tablet-based, cognitive-behavioral group intervention (Tab-G) to improve daily walking for older adults with arthritis. METHOD: Using an experimental pretest/posttest repeated measure design, long-term effects on step count, fatigue, self-efficacy, and quality of life (QOL) were investigated. RESULTS: Results of repeated measures analysis of variance showed significant improvement in step counts (F[1, 37] = 4.18, p = 0.048), fatigue (F[1, 36] = 9.971, p = 0.003), self-efficacy (F[1,28] = 4.645, p = 0.04), and QOL (F[1, 29] = 6.147, p = 0.019) in the Tab-G group compared to the control group. There were significant time effects across four time points (baseline and Weeks 4, 8, and 10) in fatigue (F[3, 108] = 5.43, p = 0.002), self-efficacy (F[3, 84] = 5.433, p = 0.002), and QOL (F[3, 87] = 3.673, p = 0.015), but not in step counts (F[3, 111] = 0.611, p = 0.609). CONCLUSION: Findings demonstrate positive long-term effects on fatigue in older adults with arthritis. [Journal of Gerontological Nursing, 50(5), 35-42.].


Assuntos
Artrite , Terapia Cognitivo-Comportamental , Fadiga , Qualidade de Vida , Autoeficácia , Humanos , Idoso , Feminino , Masculino , Projetos Piloto , Artrite/terapia , Artrite/psicologia , Terapia Cognitivo-Comportamental/métodos , Caminhada , Idoso de 80 Anos ou mais , Computadores de Mão , Pessoa de Meia-Idade
6.
J Biomech ; 168: 112122, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38703516

RESUMO

As the recovery from gait perturbations is coordinatively complex and error-prone, people often adopt anticipatory strategies when the perturbation is expected. These anticipatory strategies act as a first line of defence against potential balance loss. Since age-related changes in the sensory and neuromotor systems could make the recovery from external perturbations more difficult, it is important to understand how older adults implement anticipatory strategies. Therefore, we exposed healthy young (N = 10, 22 ± 1.05 yrs.) and older adults (N = 10, 64.2 ± 6.07 yrs.) to simulated slips on a treadmill with consistent properties and assessed if the reliance on anticipatory control differed between groups. Results showed that for the unperturbed steps in between perturbations, step length decreased and the backward (BW) margin of stability (MOS) increased (i.e., enhanced dynamic stability against backward loss of balance) in the leg that triggered the slip, while step lengths increased and BW MOS decreased in the contralateral leg. This induced step length and BW MOS asymmetry was significantly larger for older adults. When exposed to a series of predictable slips, healthy older adults thus rely more heavily on anticipatory control to proactively accommodate the expected backward loss of balance.


Assuntos
Marcha , Equilíbrio Postural , Humanos , Masculino , Feminino , Equilíbrio Postural/fisiologia , Pessoa de Meia-Idade , Idoso , Marcha/fisiologia , Acidentes por Quedas/prevenção & controle , Adulto , Envelhecimento/fisiologia , Antecipação Psicológica/fisiologia , Fenômenos Biomecânicos , Adulto Jovem , Caminhada/fisiologia
7.
J Biomech ; 168: 112130, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38713998

RESUMO

Simulations of musculoskeletal models are useful for estimating internal muscle and joint forces. However, predicted forces rely on optimization and modeling formulations. Geometric detail is important to predict muscle forces, and greater geometric complexity is required for muscles that have broad attachments or span many joints, as in the torso. However, the extent to which optimized muscle force recruitment is sensitive to these geometry choices is unclear. We developed level, uphill and downhill sloped walking simulations using a standard (uniformly weighted, "fatigue-like") cost function with lower limb and full-body musculoskeletal models to evaluate hip muscle recruitment with different geometric representations of the psoas muscle under walking conditions with varying hip moment demands. We also tested a novel cost function formulation where muscle activations were weighted according to the modeled geometric detail in the full-body model. Total psoas force was less and iliacus, rectus femoris, and other hip flexors' force was greater when psoas was modeled with greater geometric detail compared to other hip muscles for all slopes. The proposed weighting scheme restored hip muscle force recruitment without sacrificing detailed psoas geometry. In addition, we found that lumbar, but not hip, joint contact forces were influenced by psoas force recruitment. Our results demonstrate that static optimization dependent simulations using models comprised of muscles with different amounts of geometric detail bias force recruitment toward muscles with less geometric detail. Muscle activation weighting that accounts for differences in geometric complexity across muscles corrects for this recruitment bias.


Assuntos
Simulação por Computador , Músculos Psoas , Caminhada , Humanos , Músculos Psoas/fisiologia , Caminhada/fisiologia , Modelos Biológicos , Fenômenos Biomecânicos , Articulação do Quadril/fisiologia , Masculino , Movimento/fisiologia
8.
Int J Behav Nutr Phys Act ; 21(1): 55, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38730407

RESUMO

BACKGROUND: The purpose of this study was to investigate the effects of a walking school bus intervention on children's active commuting to school. METHODS: We conducted a randomized controlled trial (RCT) in Houston, Texas (Year 1) and Seattle, Washington (Years 2-4) from 2012 to 2016. The study had a two-arm, cluster randomized design comparing the intervention (walking school bus and education materials) to the control (education materials) over one school year October/November - May/June). Twenty-two schools that served lower income families participated. Outcomes included percentage of days students' active commuting to school (primary, measured via survey) and moderate-to-vigorous physical activity (MVPA, measured via accelerometry). Follow-up took place in May or June. We used linear mixed-effects models to estimate the association between the intervention and outcomes of interest. RESULTS: Total sample was 418 students [Mage=9.2 (SD = 0.9) years; 46% female], 197 (47%) in the intervention group. The intervention group showed a significant increase compared with the control group over time in percentage of days active commuting (ß = 9.04; 95% CI: 1.10, 16.98; p = 0.015) and MVPA minutes/day (ß = 4.31; 95% CI: 0.70, 7.91; p = 0.02). CONCLUSIONS: These findings support implementation of walking school bus programs that are inclusive of school-age children from lower income families to support active commuting to school and improve physical activity. TRAIL REGISTRATION: This RCT is registered at clinicaltrials.gov (NCT01626807).


Assuntos
Instituições Acadêmicas , Meios de Transporte , Caminhada , Humanos , Caminhada/estatística & dados numéricos , Feminino , Masculino , Criança , Meios de Transporte/métodos , Promoção da Saúde/métodos , Washington , Texas , Estudantes , Exercício Físico , Veículos Automotores , Acelerometria , Pobreza , Avaliação de Programas e Projetos de Saúde , Análise por Conglomerados
9.
Technol Cult ; 65(2): 473-495, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38766958

RESUMO

This article explores why white supremacists regard self-directed mobility by people of color as threatening by examining a controversy that unfolded in a mining town called Springs during the apartheid era in South Africa. Drawing on archives, oral histories, and testimonies, it shows how white residents of Selcourt and Selection Park, along with their allies in the town council, prevented Black workers from walking and cycling through the suburbs. Infrastructure and social disciplinary institutions proved effective in forcing Black workers to largely comply. It argues that the white supremacist disciplinary imperative against the workers arose directly from the characteristics of their mode of mobility. In their open embodiment, free from the confines of mechanized transport, and slow speeds, the workers engaged in a sustained refusal of spatial segregation. The article highlights how racial difference as an analytical category sheds light on mobility control within regimes of white supremacy.


Assuntos
Caminhada , África do Sul , História do Século XX , Humanos , Caminhada/história , População Negra/história , Ciclismo/história , Apartheid/história , Racismo/história , Relações Raciais/história
10.
Sci Rep ; 14(1): 11509, 2024 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-38769128

RESUMO

Loss of ambulation is common and highly variable in Parkinson's disease (PD), and poorly understood from the perspectives of those with PD. Gaining insights to the anticipated perceived trajectories and their drivers, will facilitate patient-centered care. Latent class growth analysis, a person-centered mixture modelling approach, was applied to 16,863 people with PD stratified by early (N = 8612; < 3 years), mid (N = 6181; 3-10 years) and later (N = 2070; > 10 years) disease to discern clusters with similar longitudinal patterns of self-reported walking difficulty, measured by EuroQoL 5D-5L that is validated for use in PD. There were four clusters in early and mid-disease strata, with a fifth identified in later disease. Trajectories ranged from none to moderate walking difficulty, with small clusters with severe problems. The percentage of subjects with moderate (early = 17.5%, mid = 26.4%, later = 32.5%) and severe (early = 3.8%, mid = 7.4%, later = 15.4%) walking difficulty at baseline increased across disease duration groups. The trajectories tended to be stable with variability in moderate and severe groups. Across strata, clusters with moderate to severe problems were associated with more severe impairment, depression, anxiety, arthritis, higher BMI, lower income, and lower education, but no consistent race or gender differences. The findings reveal distinct longitudinal patterns in perceived difficulties in walking in PD.


Assuntos
Doença de Parkinson , Caminhada , Humanos , Doença de Parkinson/psicologia , Doença de Parkinson/fisiopatologia , Doença de Parkinson/complicações , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Estudos Longitudinais , Qualidade de Vida
11.
Sensors (Basel) ; 24(9)2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38732771

RESUMO

Human activity recognition (HAR) technology enables continuous behavior monitoring, which is particularly valuable in healthcare. This study investigates the viability of using an ear-worn motion sensor for classifying daily activities, including lying, sitting/standing, walking, ascending stairs, descending stairs, and running. Fifty healthy participants (between 20 and 47 years old) engaged in these activities while under monitoring. Various machine learning algorithms, ranging from interpretable shallow models to state-of-the-art deep learning approaches designed for HAR (i.e., DeepConvLSTM and ConvTransformer), were employed for classification. The results demonstrate the ear sensor's efficacy, with deep learning models achieving a 98% accuracy rate of classification. The obtained classification models are agnostic regarding which ear the sensor is worn and robust against moderate variations in sensor orientation (e.g., due to differences in auricle anatomy), meaning no initial calibration of the sensor orientation is required. The study underscores the ear's efficacy as a suitable site for monitoring human daily activity and suggests its potential for combining HAR with in-ear vital sign monitoring. This approach offers a practical method for comprehensive health monitoring by integrating sensors in a single anatomical location. This integration facilitates individualized health assessments, with potential applications in tele-monitoring, personalized health insights, and optimizing athletic training regimes.


Assuntos
Dispositivos Eletrônicos Vestíveis , Humanos , Adulto , Masculino , Feminino , Pessoa de Meia-Idade , Adulto Jovem , Atividades Humanas , Orelha/fisiologia , Algoritmos , Atividades Cotidianas , Aprendizado de Máquina , Aprendizado Profundo , Monitorização Fisiológica/instrumentação , Monitorização Fisiológica/métodos , Movimento (Física) , Caminhada/fisiologia
12.
Sensors (Basel) ; 24(9)2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38732956

RESUMO

Virtual reality (VR) is used in many fields, including entertainment, education, training, and healthcare, because it allows users to experience challenging and dangerous situations that may be impossible in real life. Advances in head-mounted display technology have enhanced visual immersion, offering content that closely resembles reality. However, several factors can reduce VR immersion, particularly issues with the interactions in the virtual world, such as locomotion. Additionally, the development of locomotion technology is occurring at a moderate pace. Continuous research is being conducted using hardware such as treadmills, and motion tracking using depth cameras, but they are costly and space-intensive. This paper presents a walk-in-place (WIP) algorithm that uses Mocopi, a low-cost motion-capture device, to track user movements in real time. Additionally, its feasibility for VR applications was evaluated by comparing its performance with that of a treadmill using the absolute trajectory error metric and survey data collected from human participants. The proposed WIP algorithm with low-cost Mocopi exhibited performance similar to that of the high-cost treadmill, with significantly positive results for spatial awareness. This study is expected to contribute to solving the issue of spatial constraints when experiencing infinite virtual spaces.


Assuntos
Algoritmos , Realidade Virtual , Caminhada , Humanos , Caminhada/fisiologia , Masculino , Adulto , Feminino , Interface Usuário-Computador , Movimento (Física)
13.
Sensors (Basel) ; 24(9)2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38732980

RESUMO

Walking encompasses a complex interplay of neuromuscular coordination and cognitive processes. Disruptions in gait can impact personal independence and quality of life, especially among the elderly and neurodegenerative patients. While traditional biomechanical analyses and neuroimaging techniques have contributed to understanding gait control, they often lack the temporal resolution needed for rapid neural dynamics. This study employs a mobile brain/body imaging (MoBI) platform with high-density electroencephalography (hd-EEG) to explore event-related desynchronization and synchronization (ERD/ERS) during overground walking. Simultaneous to hdEEG, we recorded gait spatiotemporal parameters. Participants were asked to walk under usual walking and dual-task walking conditions. For data analysis, we extracted ERD/ERS in α, ß, and γ bands from 17 selected regions of interest encompassing not only the sensorimotor cerebral network but also the cognitive and affective networks. A correlation analysis was performed between gait parameters and ERD/ERS intensities in different networks in the different phases of gait. Results showed that ERD/ERS modulations across gait phases in the α and ß bands extended beyond the sensorimotor network, over the cognitive and limbic networks, and were more prominent in all networks during dual tasks with respect to usual walking. Correlation analyses showed that a stronger α ERS in the initial double-support phases correlates with shorter step length, emphasizing the role of attention in motor control. Additionally, ß ERD/ERS in affective and cognitive networks during dual-task walking correlated with dual-task gait performance, suggesting compensatory mechanisms in complex tasks. This study advances our understanding of neural dynamics during overground walking, emphasizing the multidimensional nature of gait control involving cognitive and affective networks.


Assuntos
Encéfalo , Eletroencefalografia , Marcha , Caminhada , Humanos , Marcha/fisiologia , Masculino , Eletroencefalografia/métodos , Encéfalo/fisiologia , Encéfalo/diagnóstico por imagem , Feminino , Adulto , Caminhada/fisiologia , Rede Nervosa/fisiologia , Rede Nervosa/diagnóstico por imagem , Adulto Jovem
14.
Scand J Med Sci Sports ; 34(5): e14645, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38736180

RESUMO

INTRODUCTION: Age-related decline in physical functioning has significant implications for health in later life but declines begin earlier in midlife. Physical activity (PA) volume is associated with physical function, but the importance of the pattern in which PA is accumulated is unclear. This study investigates associations between patterns of PA accumulation, including the composition, variation, and temporal distribution of upright and stepping events, with physical function in midlife. METHODS: Participants (n = 4378) from the 1970 British Cohort Study wore an activPAL3 accelerometer on the thigh for 7 consecutive days. Exposure measures included a suite of metrics describing the frequency, duration, and composition of upright events, as well as the duration and volume (total steps) of stepping events. In addition, patterns of accumulation of upright and sedentary events were examined including how fragmented/transient they were (upright-to-sedentary transition probability [USTP]) and their burstiness (the tendency for events to be clustered together followed by longer interevent times). Physical function outcomes included grip strength (GS), balance, and SF-36 physical functioning subscale (SF-36pf). Cross-sectional analyses included multivariable linear regression models to assess associations, adjusting for covariates including overall PA volume (mean daily step count). RESULTS: Higher upright event burstiness was associated with higher GS, and higher USTP was associated with lower GS. Duration and step volume of stepping events were positively associated with SF-36pf in females. Step-weighted cadence was positively associated with SF-36pf and balance. Contradictory findings were also present (e.g., more transient stepping events were associated with better GS) particularly for GS in males. Inconsistencies between sexes were observed across some associations. CONCLUSION: Our study reveals that diverse patterns of PA accumulation exhibit distinct associations with various measures of physical function in midlife, irrespective of the overall volume. Contradictory findings and inconsistency between sexes warrant further investigation. Patterns of PA accumulation, in addition to volume, should be considered in future PA research. Longitudinal studies are required to determine whether a given volume of activity accumulated in different patterns, impacts associations between PA and health outcomes.


Assuntos
Acelerometria , Exercício Físico , Força da Mão , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Estudos Transversais , Reino Unido , Força da Mão/fisiologia , Exercício Físico/fisiologia , Comportamento Sedentário , Equilíbrio Postural/fisiologia , Estudos de Coortes , Caminhada/fisiologia
15.
BMJ Open ; 14(5): e080592, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38692713

RESUMO

BACKGROUND: Falls are common in older people and individuals with neurological conditions. Parkinson's disease (PD) is known for postural instability causing mobility disabilities, falls and reduced quality of life. The fear of falling (FOF), a natural response to unstable balance, can worsen postural control problems. Evaluating FOF relies largely on affected persons' subjective accounts due to limited objective assessment methods available. The aim of this mixed-methods feasibility study is to develop an assessment method for FOF while in motion and walking within virtual environments. This study will assess a range of FOF-related responses, including cognitive factors, neuromuscular response and postural stability. METHODS AND ANALYSIS: This feasibility study will consist of four phases: the first two phases will include people without PD, while the other two will include people diagnosed with PD. Participants will be assessed for direct and indirect responses to real life, as well as virtual environment walking scenarios that may induce FOF. Data from questionnaires, different neurophysiological assessments, movement and gait parameters, alongside evaluations of usability and acceptability, will be collected. Semistructured interviews involving both participants and research assistants shall take place to elicit their experiences throughout different phases of the assessments undertaken. Demographic data, the scores of assessment scales, as well as feasibility, usability and acceptability of the measurement methods, will be illustrated via descriptive statistics. Movement and gait outcomes, together with neurophysiological data, will be extracted and calculated. Exploring relationships between different factors in the study will be achieved using a regression model. Thematic analysis will be the approach used to manage qualitative data. ETHICS AND DISSEMINATION: This feasibility study was approved by the Ethics Committee of the Faculty of Physical Therapy, Kafr El Sheikh University, Egypt (number: P.T/NEUR/3/2023/46). The results of this study will be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: ClinicalTrials.gov Registry (NCT05931692).


Assuntos
Acidentes por Quedas , Medo , Estudos de Viabilidade , Doença de Parkinson , Equilíbrio Postural , Realidade Virtual , Humanos , Doença de Parkinson/psicologia , Doença de Parkinson/fisiopatologia , Equilíbrio Postural/fisiologia , Acidentes por Quedas/prevenção & controle , Medo/psicologia , Egito , Masculino , Feminino , Qualidade de Vida , Idoso , Pessoa de Meia-Idade , Adulto , Caminhada
16.
Accid Anal Prev ; 202: 107609, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38701560

RESUMO

Self-assessed driving ability may differ from actual driving performance, leading to poor calibration (i.e., differences between self-assessed driving ability and actual performance), increased risk of accidents and unsafe driving behaviour. Factors such as sleep restriction and sedentary behaviour can impact driver workload, which influences driver calibration. This study aims to investigate how sleep restriction and prolonged sitting impact driver workload and driver calibration to identify strategies that can lead to safer and better calibrated drivers. Participants (n = 84, mean age = 23.5 ± 4.8, 49 % female) undertook a 7-day laboratory study and were randomly allocated to a condition: sitting 9-h sleep opportunity (Sit9), breaking up sitting 9-h sleep opportunity (Break9), sitting 5-h sleep opportunity (Sit5) and breaking up sitting 5-h sleep opportunity (Break5). Break9 and Break5 conditions completed 3-min of light-intensity walking on a treadmill every 30 min between 09:00-17:00 h, while participants in Sit9 and Sit5 conditions remained seated. Each participant completed a 20-min simulated commute in the morning and afternoon each day and completed subjective assessments of driving ability and perceived workload before and after each commute. Objective driving performance was assessed using a driving simulator measuring speed and lane performance metrics. Driver calibration was analysed using a single component and 3-component Brier Score. Correlational matrices were conducted as an exploratory analysis to understand the strength and direction of the relationship between subjective and objective driving outcomes. Analyses revealed participants in Sit9 and Break9 were significantly better calibrated for lane variability, lane position and safe zone-lane parameters at both time points (p < 0.0001) compared to Sit5 and Break5. Break5 participants were better calibrated for safe zone-speed and combined safe zone parameters (p < 0.0001) and speed variability at both time points (p = 0.005) compared to all other conditions. Analyses revealed lower perceived workload scores at both time points for Sit9 and Break9 participants compared to Sit5 and Break5 (p = <0.001). Breaking up sitting during the day may reduce calibration errors compared to sitting during the day for speed keeping parameters. Future studies should investigate if different physical activity frequency and intensity can reduce calibration errors, and better align a driver's self-assessment with their actual performance.


Assuntos
Condução de Veículo , Postura Sentada , Privação do Sono , Carga de Trabalho , Humanos , Feminino , Masculino , Condução de Veículo/psicologia , Adulto , Adulto Jovem , Autoavaliação (Psicologia) , Comportamento Sedentário , Simulação por Computador , Caminhada
17.
PLoS One ; 19(5): e0303090, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38722902

RESUMO

This study aimed to determine whether filtering out walking-related actigraphy data improves the reliability and accuracy of real-world upper extremity activity assessment in children with unilateral cerebral palsy. Twenty-two children aged 4-12 years diagnosed with unilateral cerebral palsy were included in this study, which was drawn from a two-phase randomized controlled trial conducted from July 2021 to December 2022. Data were collected from a tertiary hospital in Seoul, Republic of Korea. Participants were monitored using tri-axial accelerometers on both wrists across three time points (namely, T0, T1, and T2) over 3 days; interventions were used between each time point. Concurrently, an in-laboratory study focusing on walking and bimanual tasks was conducted with four participants. Data filtration resulted in a reduction of 8.20% in total data entry. With respect to reliability assessment, the intra-class correlation coefficients indicated enhanced consistency after filtration, with increased values for both the affected and less-affected sides. Before filtration, the magnitude counts for both sides showed varying tendencies, depending on the time points; however, they presented a consistent and stable trend after filtration. The findings of this research underscore the importance of accurately interpreting actigraphy measurements in children with unilateral cerebral palsy for targeted upper limb intervention by filtering walking-induced data.


Assuntos
Actigrafia , Paralisia Cerebral , Caminhada , Humanos , Paralisia Cerebral/fisiopatologia , Actigrafia/métodos , Criança , Caminhada/fisiologia , Masculino , Feminino , Pré-Escolar , Reprodutibilidade dos Testes , República da Coreia
18.
Int J Behav Nutr Phys Act ; 21(1): 59, 2024 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-38773559

RESUMO

BACKGROUND: Physical inactivity is a major public health concern, exacerbated in countries with a (sub)tropical climate. The built environment can facilitate physical activity; however, current evidence is mainly from North American and European countries with activity-friendly climate conditions. This study explored associations between built environment features and physical activity in global tropical or subtropical dry or desert climate regions. METHODS: A systematic review of four major databases (Web of Science, Scopus, PubMed, and SportDISCUS) was performed. To be included, studies had to investigate associations between perceived or objective built environment characteristics and adult's physical activity and had to be conducted in a location with (sub)tropical climate. Each investigated association was reported as one case and results were synthesized based upon perceived and objectively assessed environment characteristics as well as Western and non-Western countries. Study quality was evaluated using a tool designed for assessing studies on built environment and physical activity. RESULTS: Eighty-four articles from 50 studies in 13 countries with a total of 2546 built environment-physical activity associations were included. Design (connectivity, walking/cycling infrastructure), desirability (aesthetics, safety), and destination accessibility were the built environment characteristics most frequently associated with physical activity across the domains active transport, recreational physical activity, total walking and cycling, and moderate-to-vigorous physical activity, particularly if multiple attributes were present at the same time. Very few studies assessed built environment attributes specifically relevant to physical activity in (sub)tropical climates. Most studies were conducted in Western countries, with results being largely comparable with non-Western countries. Findings were largely generalizable across gender and age groups. Results from natural experiments indicated that relocating to an activity-friendly neighborhood impacted sub-groups differently. CONCLUSIONS: Built environment attributes, including destination accessibility, connectivity, walking and cycling infrastructure, safety, and aesthetics, are positively associated with physical activity in locations with (sub)tropical climate. However, few studies focus on built environment attributes specifically relevant in a hot climate, such as shade or indoor recreation options. Further, there is limited evidence from non-Western countries, where most of the urban population lives in (sub)tropical climates. Policy makers should focus on implementing activity-friendly environment attributes to create sustainable and climate-resilient cities.


Assuntos
Ambiente Construído , Exercício Físico , Clima Tropical , Caminhada , Humanos , Caminhada/estatística & dados numéricos , Adulto , Planejamento Ambiental , Ciclismo/estatística & dados numéricos , Características de Residência
19.
Artigo em Inglês | MEDLINE | ID: mdl-38739520

RESUMO

Robotic systems, such as Lokomat® have shown promising results in people with severe motor impairments, who suffered a stroke or other neurological damage. Robotic devices have also been used by people with more challenging damages, such as Spinal Cord Injury (SCI), using feedback strategies that provide information about the brain activity in real-time. This study proposes a novel Motor Imagery (MI)-based Electroencephalogram (EEG) Visual Neurofeedback (VNFB) system for Lokomat® to teach individuals how to modulate their own µ (8-12 Hz) and ß (15-20 Hz) rhythms during passive walking. Two individuals with complete SCI tested our VNFB system completing a total of 12 sessions, each on different days. For evaluation, clinical outcomes before and after the intervention and brain connectivity were analyzed. As findings, the sensitivity related to light touch and painful discrimination increased for both individuals. Furthermore, an improvement in neurogenic bladder and bowel functions was observed according to the American Spinal Injury Association Impairment Scale, Neurogenic Bladder Symptom Score, and Gastrointestinal Symptom Rating Scale. Moreover, brain connectivity between different EEG locations significantly ( [Formula: see text]) increased, mainly in the motor cortex. As other highlight, both SCI individuals enhanced their µ rhythm, suggesting motor learning. These results indicate that our gait training approach may have substantial clinical benefits in complete SCI individuals.


Assuntos
Eletroencefalografia , Marcha , Neurorretroalimentação , Traumatismos da Medula Espinal , Humanos , Traumatismos da Medula Espinal/reabilitação , Traumatismos da Medula Espinal/fisiopatologia , Neurorretroalimentação/métodos , Eletroencefalografia/métodos , Masculino , Adulto , Marcha/fisiologia , Robótica , Imaginação/fisiologia , Feminino , Transtornos Neurológicos da Marcha/reabilitação , Transtornos Neurológicos da Marcha/etiologia , Transtornos Neurológicos da Marcha/fisiopatologia , Resultado do Tratamento , Pessoa de Meia-Idade , Exoesqueleto Energizado , Caminhada/fisiologia , Ritmo beta , Imagens, Psicoterapia/métodos
20.
PLoS One ; 19(5): e0303067, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38748675

RESUMO

BACKGROUND: We aimed to explore the predictive value of anthropometric measurements in survival and free walking ability of geriatric hip fractures after surgery. METHODS: Eight common anthropometric measurements, including arm circumference (AC), waist circumference (WC), thigh circumference (TC), calf circumference (CC), biceps skinfold (BS), triceps skinfold (TS), suprailiac skinfold (SIS), and subscapular skinfold (SSS), were included to identify their predictive value in survival and free walking ability of geriatric hip fractures. The results of anthropometric measurements were compared between patients with different outcomes. Cox and logistics models were established to further identify the predictive value of anthropometric measurements. RESULTS: Comparison among groups indicated that individuals with different outcomes may have significantly different anthropometric measurements. In the Cox analyses based on all individuals, all models proved that the patients with higher AC, as well as CC and BS, may have a lower risk of 1-year mortality. Similarly, in the logistics analysis, AC, CC, and BS were proven to have strong predictive ability for 6-month and 1-year mortality in females and overall individuals. However, the predictive value of the eight common anthropometric measurements in free walking ability is not significant. CONCLUSION: AC, CC, and BS may have strong predictive ability for 6-month and 1-year mortality in all individuals and females.


Assuntos
Antropometria , Fraturas do Quadril , Caminhada , Humanos , Feminino , Fraturas do Quadril/cirurgia , Fraturas do Quadril/mortalidade , Masculino , Idoso , Idoso de 80 Anos ou mais , Valor Preditivo dos Testes
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