Publications by authors named "L Keaney"
Objective: To comprehensively examine the influence of auto-patient centering technologies on positioning accuracy, radiation dose, image quality, and time efficiency of computed tomography (CT) scans.
Materials And Methods: A systematic search of peer-reviewed English publications was performed between January 2000 and November 2023 in PubMed, Embase, CINAHL, Scopus, and Web of Science. Two postgraduate students and an academic lecturer independently reviewed the articles to verify adherence to the inclusion criteria.
Background: Physical fitness is a key tenet of military organisations worldwide. Specifically, many consider aerobic fitness (AF) an essential physical attribute for ensuring optimal military performance and readiness. However, the intricate relationship between AF and various facets of military job performance necessitates comprehensive review to ascertain the appropriateness and effectiveness of its assessment.
View Article and Find Full Text PDFArticle Synopsis
- The study investigates whether a ketogenic diet (KD) affects natural killer (NK) cell counts and their activation after moderate-intensity exercise.
- Results show that the KD enhances the NK cell response during exercise by increasing the cytotoxic CD56 subset, but does not change the activation marker CD69 on these cells.
- Ultimately, the research suggests that while the KD influences NK cell circulation and mobilization during exercise, it does not affect their ability to activate in response to antigens.
Article Synopsis
- The study explored the effects of heat acclimation (HA) on immune and wellness indicators in recreational athletes during a controlled-hyperthermia protocol over 10 days.
- It found that while physiological adaptations like improved sweating and lower body temperature were achieved, resting salivary immunoglobulin-A (s-IgA) and cortisol levels did not change significantly.
- Ultimately, HA did not negatively impact upper-respiratory symptoms or overall wellness ratings, indicating it’s safe for athletes prior to peak events.
The primary aim of this study was to examine if biomarker and/or self-reported data could predict upper respiratory tract symptom (URTS) risk in elite field hockey players. The secondary aim was to investigate the effect of the additional stressor 'repeated heat exposure' on measures of thermoregulation and immunity. A prospective cohort repeated measures study design was used to collect URTS, household illness, self-reported wellness, biomarker and thermoregulatory data from elite male field hockey players ( = 19), during an 8-week training and competition period that simulated the preparatory and competition phases of the 2020 Tokyo Olympics.
View Article and Find Full Text PDF