The present study examined the effects of cerebellar disease on the organization and execution of obstacle avoidance tasks. To this end, we characterized how variations in the execution demands of the subsequent obstacles in multiple obstacle crossing tasks influenced the stepping performance of the initial obstacle in patients with cerebellar degeneration (CD) by manipulating the height (6 cm and 16 cm) and distance (1 m and 2 m) of the second obstacle. Nine patients with bilateral cerebellar atrophy and nine age-matched normal controls were instructed to walk along an 8 m long pathway and step over two obstacles without contacting them. The primary finding indicated that CD patients exhibited an elevated foot clearance over the initial obstacle when the height demand of the second obstacle was increased. Such abnormal step-height adjustments in CD patients are considered as an adaptive avoidance strategy to diminish the execution demands of complex obstacle tasks and to enhance safe performance. These results suggest that the cerebellum is important for the implementation of optimal stepping strategies to be used during multiple obstacle crossings in which the obstacles have different execution demands.
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http://dx.doi.org/10.1016/j.gaitpost.2012.09.001 | DOI Listing |
Hum Brain Mapp
February 2025
Department of Psychological and Brain Sciences, University of Delaware, Newark, Delaware, USA.
Converging lines of research indicate that inhibitory control is likely to be compromised in contexts that place competing demands on emotional, motivational, and cognitive systems, potentially leading to damaging impulsive behavior. The objective of this study was to identify the neural impact of three challenging contexts that typically compromise self-regulation and weaken impulse control. Participants included 66 healthy adults (M/SD = 29.
View Article and Find Full Text PDFEur J Neurosci
January 2025
Faculty of Physical Activity and Sport Sciences (INEF), Sports Department, Universidad Politécnica de Madrid (UPM), Madrid, Spain.
Soccer players must react quickly and execute complex mental processes to adapt to competitive scenarios while maintaining peak physical performance. Perceptual-cognitive training methods integrate reaction tasks using nonspecific visual stimuli with game-like motor actions, but the impact on explosive strength responses is unclear. This study investigates the effect of nonspecific visual stimuli with varying perceptual-cognitive constraints on jump performance, including countermovement jump height, reactive strength index modified, action time, and reaction time.
View Article and Find Full Text PDFHealth Policy Open
June 2025
Strategy Division, Unitaid, Geneva, Switzerland.
Low-and middle-income countries (LMICs) account for a significant proportion of the burden of disease for communicable illnesses globally; with malaria, tuberculosis (TB), and HIV/AIDS being the leading causes of death. Despite this disparity, LMICs often have limited or delayed access to newer optimal health products compared to high-income countries (HICs). This limitation in access, driven by a myriad of barriers, undermines the potential health benefits that could be gained in LMICs through the introduction of better health products.
View Article and Find Full Text PDFBMC Health Serv Res
January 2025
Centre for the Business and Economics of Health (CBEH), The University of Queensland, St Lucia, Brisbane, QLD, 4072, Australia.
Background: The purpose of this qualitative study was to focus on review and repeat review outpatients and the structural role they play in exacerbating waitlists for Specialist Outpatient (SOP) services in Queensland. Waitlists, which record the number of patients waiting for an initial consultation (new appointment), are an indicator of a health system under strain. Waiting too long to access SOP can have a detrimental effect on people's health outcomes.
View Article and Find Full Text PDFCurr Cardiol Rep
January 2025
Heart Division, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Purpose Of The Review: This review examines the role of vascular access and closure management in cardiac electrophysiology (EP) procedures, emphasising their impact on patient outcomes and safety. It synthesises current evidence and highlights advancements, challenges, and opportunities in this critical area of EP practice.
Recent Findings: Ultrasound-guided vascular access has significantly reduced complications and improved success rates compared to traditional methods.
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