Daily physical activity, cardiorespiratory fitness, nutritional status, endothelial function, and autonomic modulation in school-age adolescents: A principal component analysis

2021 ◽  
Author(s):  
Elisabeth A. Machado ◽  
Paulo Farinatti ◽  
Fernando L. Sicuro ◽  
Flávio Rodrigues ◽  
Eliete Bouskela ◽  
...  
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Nutritional Status ◽  
Endothelial Function ◽  
Cardiorespiratory Fitness ◽  
Principal Component ◽  
Component Analysis ◽  
Daily Physical Activity ◽  
Autonomic Modulation ◽  
School Age

Principal Component Analysis of Accelerometer-Assessed Daily Physical Activity and Inactivity Among Adults

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 539
Author(s):  
James J. McClain ◽  
Richard P. Troiano ◽  
David Berrigan ◽  
Robert J. Brychta ◽  
Annemarie Koster
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Daily Physical Activity

Αξιολόγηση θρέψης σε υγιείς μετεμμηνοπαυσιακές Ελληνίδες

2018 ◽  
Author(s):  
Χρήστος Παπαβαγγέλης
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
International Physical Activity Questionnaire ◽  
Principal Component ◽  
Component Analysis ◽  
Physical Activity Questionnaire ◽  
Activity Questionnaire

Εισαγωγή: Η εμμηνόπαυση θέτει τις γυναίκες σε υψηλό κίνδυνο εμφάνισης χρόνιων νοσημάτων, όπως παχυσαρκία και καρδιαγγειακά νοσήματα. Παρόλα αυτά, εξαιρετικά λίγες μελέτες έχουν διεξαχθεί σε πληθυσμό μετεμμηνοπαυσιακών γυναικών με σκοπό την εκτίμηση της επίδρασης της διατροφής σε δομικούς και λειτουργικούς δείκτες αγγειακής λειτουργίας. Σκοπός: Κύριο σκοπό της παρούσας διατριβής αποτέλεσε η αξιολόγηση των διατροφικών συνηθειών μιας ομάδας υγιών μετεμμηνοπαυσιακών γυναικών. Παράλληλα, η διερεύνηση της υπάρχουσας σχέσης μεταξύ του Μεσογειακού τρόπου ζωής και της έκβασης δομικών και λειτουργικών αρτηριακών δεικτών σε υπο-ομάδα γυναικών αποτέλεσε επιπρόσθετο στόχο. Μεθοδολογία: Δείγμα της μελέτης αποτέλεσαν 638 γυναίκες που προσήλθαν στο εξωτερικό ιατρείο Κλιμακτηρίου και Εμμηνόπαυσης του Αρεταίειου Νοσοκομείου Αθηνών. Κριτήρια ένταξης ήταν η ύπαρξη εμμηνόπαυσης, δηλαδή απουσία έμμηνου ρύσεως για τουλάχιστον 12 συνεχόμενους μήνες και επίπεδα FSH >25 mIU/mL και οιστραδιόλης <50 pg/mL. Καταγράφηκαν τα δημογραφικά χαρακτηριστικά και το ιατρικό και γυναικολογικό ιστορικό των γυναικών. Επίσης, πραγματοποιήθηκε αξιολόγηση της σωματικής δραστηριότητας μέσω του International Physical Activity Questionnaire και διατροφική αξιολόγηση μέσω έγκυρου ερωτηματολογίου συχνότητας κατανάλωσης τροφίμων και υπολογίστηκε η προσκόλληση στη μεσογειακή δίαιτα μέσω του δείκτη MedDietScore. Τέλος, μετρήθηκαν ανθρωπομετρικά χαρακτηριστικά, πραγματοποιήθηκε κλινική εξέταση και αξιολογήθηκαν βιοχημικοί και ορμονικοί δείκτες. Αποτελέσματα: Η μέση ηλικία του δείγματος ήταν 57,7 ±7,6 έτη, ενώ ο ΔΜΣ ήταν 27,9 ± 5,0 kg/m2. Η μέση προσκόλληση στη μεσογειακή δίαιτα των συμμετεχουσών, σύμφωνα με το MedDietScore ήταν 36,1 ±4,7. Από την εφαρμογή πολλαπλής λογιστικής παλινδρόμησης παρατηρήθηκε ότι η Μεσογειακή δίαιτα σχετίστηκε αρνητικά με το ΔΜΣ και την περιφέρεια μέσης των γυναικών του δείγματος, μετά από προσαρμογή για συγχυτικούς παράγοντες. Ειδικότερα, οι γυναίκες υψηλής και μέτριας προσκόλλησης στη Μεσογειακή δίαιτα είχαν σημαντικά χαμηλότερους δείκτες παχυσαρκίας, υψηλότερο επίπεδο φυσικής δραστηριότητας και υψηλότερο μορφωτικό επίπεδο, σε σύγκριση με τις γυναίκες χαμηλής προσκόλλησης στο συγκεκριμένο διαιτητικό πρότυπο. Παράλληλα, μετά την εφαρμογή της Principal Component Analysis σε υπο-ομάδα 481 γυναικών του δείγματος δημιουργήθηκαν 8 διατροφικά πρότυπα, εκ των οποίων ένα διατροφικό πρότυπο πλούσιο σε διαιτητικές ίνες και σύνθετους υδατάνθρακες σχετίστηκε αρνητικά με το ΔΜΣ και την περιφέρεια μέσης των γυναικών, ενώ ένα ανθυγιεινό διατροφικό πρότυπο σχετίστηκε θετικά με το ΔΜΣ και την περιφέρεια μέσης των γυναικών, μετά την προσαρμογή για συγχυτικούς παράγοντες. Αναφορικά με την αγγειακή λειτουργία, παρατηρήθηκε σημαντική αρνητική συσχέτιση μεταξύ της ταχύτητας σφυγμικού κύματος αρτηρίας και της κατανάλωσης ροφημάτων καφέ/τσαγιού (r=-0.233, p<0.001). Ακόμη, παρατηρήθηκε θετική συσχέτιση μεταξύ του πάχους κοινής καρωτίδας και της κατανάλωσης επεξεργασμένων δημητριακών (r=0.116, p=0.04). Έπειτα από πολλαπλή γραμμική παλλινδρόμηση, η κατανάλωση ξηρών καρπών και ροφημάτων καφέ/τσαγιού σχετίστηκαν σημαντικά αρνητικά με το πάχος κοινής καρωτίδας (b-coefficient=-0.018, p=0.05) και την ταχύτητα σφυγμικού κύματος (b-coefficient= -0.327, p=0.002), αντίστοιχα. Ενώ, η κατανάλωση πατάτας σχετίστηκε σημαντικά θετικά με το πάχος κοινής καρωτίδας (b-coefficient=0.106, p<0.001). Συμπεράσματα: Η ύπαρξη διαφορετικών διατροφικών προτύπων σχετίστηκε, θετικά ή αρνητικά, με το σωματικό βάρος και την περιφέρεια μέσης στις μετεμμηνοπαυσιακές γυναίκες. Ειδικότερα, παρατηρήθηκε προστατευτική δράση της Μεσογειακής δίαιτας στους δείκτες παχυσαρκίας και η ύπαρξη σημαντικής συσχέτισης μεταξύ ορισμένων διατροφικών συνηθειών και δεικτών αγγειακής λειτουργίας

scholarly journals Methodological considerations for measuring spontaneous physical activity in rodents

2014 ◽  
Vol 306 (10) ◽  
pp. R714-R721 ◽  
Author(s):  
Jennifer A. Teske ◽  
Claudio E. Perez-Leighton ◽  
Charles J. Billington ◽  
Catherine M. Kotz
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Principal Component ◽  
Sensory Stimulation ◽  
Component Analysis ◽  
Exploratory Activity ◽  
Phenotypic Differences ◽  
Spontaneous Physical Activity ◽  
Methodological Considerations ◽  
Chamber Size

When exploring biological determinants of spontaneous physical activity (SPA), it is critical to consider whether methodological factors differentially affect rodents and the measured SPA. We determined whether acclimation time, sensory stimulation, vendor, or chamber size affected measures in rodents with varying propensity for SPA. We used principal component analysis to determine which SPA components (ambulatory and vertical counts, time in SPA, and distance traveled) best described the variability in SPA measurements. We compared radiotelemetry and infrared photobeams used to measure SPA and exploratory activity. Acclimation time, sensory stimulation, vendor, and chamber size independently influenced SPA, and the effect was moderated by the propensity for SPA. A 24-h acclimation period prior to SPA measurement was sufficient for habituation. Principal component analysis showed that ambulatory and vertical measurements of SPA describe different dimensions of the rodent's SPA behavior. Smaller testing chambers and a sensory attenuation cubicle around the chamber reduced SPA. SPA varies between rodents purchased from different vendors. Radiotelemetry and infrared photobeams differ in their sensitivity to detect phenotypic differences in SPA and exploratory activity. These data highlight methodological considerations in rodent SPA measurement and a need to standardize SPA methodology.

scholarly journals Physical activity, motor competence and movement and gait quality: A principal component analysis

2019 ◽  
Vol 68 ◽  
pp. 102523
Author(s):  
Cain C.T. Clark ◽  
Claire M. Barnes ◽  
Michael J. Duncan ◽  
Huw D. Summers ◽  
Gareth Stratton
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Motor Competence ◽  
Gait Quality

scholarly journals Deep Phenotyping of Headache in Hospitalized COVID-19 Patients via Principal Component Analysis

2020 ◽  
Vol 11 ◽  
Author(s):  
Álvaro Planchuelo-Gómez ◽  
Javier Trigo ◽  
Rodrigo de Luis-García ◽  
Ángel L. Guerrero ◽  
Jesús Porta-Etessam ◽  
...  
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Linear Models ◽  
Principal Component ◽  
Component Analysis ◽  
Cross Sectional Study ◽  
Tension Type Headache ◽  
Common Symptom ◽  
Cross Sectional ◽  
Novel Coronavirus

Objectives: Headache is a common symptom in systemic infections, and one of the symptoms of the novel coronavirus disease 2019 (COVID-19). The objective of this study was to characterize the phenotype of COVID-19 headache via machine learning.Methods: We performed a cross-sectional study nested in a retrospective cohort. Hospitalized patients with COVID-19 confirmed diagnosis who described headache were included in the study. Generalized Linear Models and Principal Component Analysis were employed to detect associations between intensity and self-reported disability caused by headache, quality and topography of headache, migraine features, COVID-19 symptoms, and results from laboratory tests.Results: One hundred and six patients were included in the study, with a mean age of 56.6 ± 11.2, including 68 (64.2%) females. Higher intensity and/or disability caused by headache were associated with female sex, fever, abnormal platelet count and leukocytosis, as well as migraine symptoms such as aggravation by physical activity, pulsating pain, and simultaneous photophobia and phonophobia. Pain in the frontal area (83.0% of the sample), pulsating quality, higher intensity of pain, and presence of nausea were related to lymphopenia. Pressing pain and lack of aggravation by routine physical activity were linked to low C-reactive protein and procalcitonin levels.Conclusion: Intensity and disability caused by headache attributed to COVID-19 are associated with the disease state and symptoms. Two distinct headache phenotypes were observed in relation with COVID-19 status. One phenotype seems to associate migraine symptoms with hematologic and inflammatory biomarkers of severe COVID-19; while another phenotype would link tension-type headache symptoms to milder COVID-19.

scholarly journals The development and initial validation of the Health and Reproductive Survey (HeRS)

2021 ◽  
Vol 17 ◽  
pp. 174550652110048
Author(s):  
Donna Duffy ◽  
Jennifer Yourkavitch ◽  
Georgie Bruinvels ◽  
Nicola J Rinaldi ◽  
Laurie Wideman
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Content Validity ◽  
Principal Component ◽  
Component Analysis ◽  
Face Validity ◽  
Convenience Sample ◽  
Physically Active ◽  
Menstrual Function ◽  
The Face

Background: Due to the diversity in profiles associated with the female reproductive cycle and their potential physiological and psychological effects, monitoring the reproductive status of exercising females is important from a practical and research perspective. Moreover, as physical activity can influence menstrual function, the effects of physical activity energy expenditure on reproductive function should also be considered. Aim: The aim of this study was to develop and establish initial face and content validity of the Health and Reproductive Survey (HeRS) for physically active females, which is a retrospective assessment of menstrual function from menarche (first menstruation) to menopause (cessation of menstruation). Methods: Face validity was evaluated qualitatively, and the initial content validity was established through a principal component analysis. The face validity process was completed by 26 females aged 19–67 years and the content validity was established through a survey sent to a convenience sample of 392 females, of which 230 females (57.9% and aged 18–49 years) completed the survey. Results: The revisions made following the face validation improved the understanding, flow, and coherence of the survey. The principal component analysis indicated that, at a minimum, the survey measures these constructs: menstrual cessation and associated moderators, athletic participation and performance levels (as associated with menstruation change and the menstrual cycle), age and menstrual cessation, hormonal contraception (“birth control”), and menarche and associated moderators. Conclusion: The Health and Reproductive Survey (HeRS) is a partially validated tool that can be used by researchers to characterize the menstrual status of physically active females relative to their physical activity status.

scholarly journals Translation and Validation of the Arabic Version of the Capability Assessment for Diet and Activity (CADA) Questionnaire in Saudi University Employed Women

2021 ◽  
Vol 18 (12) ◽  
pp. 6246
Author(s):  
Jwaher Haji Alhaji ◽  
Ghareeb O. Alshuwaier ◽  
Nouf Sahal Alharbi ◽  
Abdulrahman I. Alaqil ◽  
Nora Majed BinSultan ◽  
...  
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Behavior Management ◽  
Rank Correlation ◽  
Principal Component ◽  
Component Analysis ◽  
Activity Level ◽  
Arabic Version ◽  
Spearman’S Rank Correlation ◽  
Diet And Physical Activity

Background: The Capability Assessment for Diet and Activity (CADA) is a questionnaire that was developed in English and designed to measure the practical barriers and opportunities for diet and physical activity. Objective: This study aimed to translate, culturally adapt, and validate the CADA questionnaire for the Arabic context in a sample of Saudi women employed at a university. Methods: The CADA was translated into Arabic using the forward and backward translation process. The Arabic version was then validated with a sample of 125 female Saudi participants. In order to evaluate the psychometric properties of the Arabic version, Spearman’s rank correlation coefficient was assessed, and a principal component analysis was performed. Results: The translated CADA had good psychometric quality. The content validity analysis revealed a representativeness score of 99.3% and a degree of clarity of 98.6%, indicating excellent compatibility. The principal component analysis showed a single-factor structure. Conclusions: The Arabic version of the CADA questionnaire is now available to assess opportunities to achieve a healthy diet and physical activity level as part of health behavior management, which can lead to more effective interventions for improving people’s health in Arabic-speaking countries.

scholarly journals Education and lifestyle predict change in dietary patterns and diet quality of adults 55 years and over

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Maree G. Thorpe ◽  
Catherine M. Milte ◽  
David Crawford ◽  
Sarah A. McNaughton
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Principal Component Analysis ◽  
Diet Quality ◽  
Dietary Patterns ◽  
Principal Component ◽  
Component Analysis ◽  
Processed Meat ◽  
Food Groups ◽  
Time Points

Abstract Background Diet is a key risk factor for chronic disease, and an increasing concern among older adults. We aim to examine the changes in dietary patterns using principal component analysis and a diet quality index among older adults and examine the predictors of dietary change over a 4 year period. Methods Data was obtained via a postal survey in a prospective cohort, the Wellbeing Eating and Exercise for a Long Life (WELL) study. Australian adults aged 55 years and over (n = 1005 men and n = 1106 women) completed a food frequency at three time points and provided self-reported personal characteristics. Principal component analysis was used to assess dietary patterns and diet quality was assessed using the 2013 Revised Dietary Guideline Index. The relationships between predictors and change in dietary patterns were assessed by multiple linear regression. Results Two dietary patterns were consistently identified in men and women at three time points over 4 years. One was characterised by vegetables, fruit and white meat, and the other was characterised by red and processed meat and processed foods. Reduced consumption of key food groups within the principal component analysis-determined dietary patterns was observed. An increase in diet quality over 4 years was observed in men only. Reported higher education levels and favourable lifestyle characteristics, including not smoking and physical activity, at baseline predicted an increase in healthier dietary patterns over 4 years. Conclusions There was stability in the main dietary patterns identified over time, however participants reported an overall decrease in the frequency of consumption of key food groups. Compliance with the Australian Dietary Guidelines remained poor and therefore targeting this population in nutritional initiatives is important. Design of nutrition promotion for older adults need to consider those with lower socioeconomic status, as having a lower level of education was a predictor of poorer dietary patterns. It is important to consider how nutrition behaviours can be targeted alongside other lifestyle behaviours, such as smoking and inadequate physical activity to improve health.

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