scholarly journals Postural Adjustment Mechanisms of Cerebrovascular Disease Patients: A Comparison with Healthy Adults Using Near-infrared Spectroscopy

2015 ◽  
Vol 30 (6) ◽  
pp. 981-985 ◽  
Author(s):  
Shinsuke IMAOKA ◽  
Etsuro MATUBARA
2019 ◽  
Vol 51 (Supplement) ◽  
pp. 300
Author(s):  
Ashley M. Goodwin ◽  
Jacqueline Montes ◽  
Ipek Ensari ◽  
Feliz Marie Hernandez ◽  
Kayla Coutts ◽  
...  

2018 ◽  
Vol 32 (12) ◽  
pp. 1319-1329 ◽  
Author(s):  
Mark Moss ◽  
Ellen Smith ◽  
Matthew Milner ◽  
Jemma McCready

Background: The use of herbal extracts and supplements to enhance health and wellbeing is increasing in western society. Aims: This study investigated the impact of the acute ingestion of a commercially available water containing an extract and hydrolat of rosemary ( Rosmarinus officinalis L. syn. Salvia rosmarinus Schleid.). Aspects of cognitive functioning, mood and cerebrovascular response measured by near-infrared spectroscopy provided the dependent variables. Methods: Eighty healthy adults were randomly allocated to consume either 250 mL of rosemary water or plain mineral water. They then completed a series of computerised cognitive tasks, followed by subjective measures of alertness and fatigue. Near-infrared spectroscopy monitored levels of total, oxygenated and deoxygenated haemoglobin at baseline and throughout the cognitive testing procedure. Results: Analysis of the data revealed a number of statistically significant, small, beneficial effects of rosemary water on cognition, consistent with those found previously for the inhalation of the aroma of rosemary essential oil. Of particular interest here are the cerebrovascular effects noted for deoxygenated haemoglobin levels during cognitive task performance that were significantly higher in the rosemary water condition. This represents a novel finding in this area, and may indicate a facilitation of oxygen extraction at times of cognitive demand. Conclusion: Taken together the data suggest potential beneficial properties of acute consumption of rosemary water. The findings are discussed in terms of putative metabolic and cholinergic mechanisms.


2019 ◽  
Vol 48 (Supplement_4) ◽  
pp. iv34-iv39
Author(s):  
Jasmine Menant ◽  
Paulo Pelicioni ◽  
Yoshiro Okubo ◽  
Colleen Canning ◽  
Daina Sturnieks ◽  
...  

Abstract Background and Aim Past research has shown that compared with healthy peers, people with Parkinson’s Disease (PD) generate poorer stepping responses and display reduced ability to adapt gait to unexpected targets and obstacles. However, the neural basis of these impairments in PD is unclear. Here, we aimed to investigate cortical activation in pre-frontal and motor areas using functional near-infrared spectroscopy (fNIRS) during stepping and gait adaptability in people with PD, compared with healthy adults. Methods Forty-four people with PD (>40 years, Hoen & Yahr stage 1-3) and 44 healthy age and sex-matched healthy adults performed three cognitively-demanding stepping tasks and a test of gait adaptability. We recorded relative changes in oxy-haemoglobin (HbO) and deoxy-haemoglobin (HbR) concentrations in the dorsolateral prefrontal cortex, supplementary motor area, premotor cortex and primary cortex using fNIRS. Results Data collection is ongoing with >75% participants already assessed. We will conduct between group-comparisons to compare HbO and HbR concentrations in the selected regions of interest in the stepping and the gait adaptability tests. Physical and cognitive predictors of brain activation in each task in each group will also be computed using regression models. Conclusion Based on the results of our recent systematic review of fNIRS-recorded brain activation during walking tasks (1), we hypothesise that compared with healthy-aged matched peers, people with PD will show increased prefrontal and motor cortices activation during stepping and gait adaptability tests. This would suggest that people with PD require more attentional resources for safe walking. Reference (1) Pelicioni et al. Prefrontal cortical activation measured by fNIRS during walking: effects of age, disease and secondary task. Peer J 2019; 7: e6833.


2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Joshua J. Dennis ◽  
Chad C. Wiggins ◽  
Joshua R. Smith ◽  
Jennifer M. J. Isautier ◽  
Bruce D. Johnson ◽  
...  

2015 ◽  
Vol 18 (5) ◽  
pp. 590-595 ◽  
Author(s):  
Federico Y. Fontana ◽  
Daniel A. Keir ◽  
Cecilia Bellotti ◽  
Gabriela F. De Roia ◽  
Juan M. Murias ◽  
...  

Author(s):  
Lais Vidotto ◽  
Cláudia Dos Santos ◽  
Mayara Da Silva ◽  
Josiane Felcar ◽  
Cosme Buzzachera ◽  
...  

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