scholarly journals Recreational Screen Time Use among a Small Sample of Canadians during the First Six Months of the COVID-19 Pandemic

2021 ◽  
Vol 18 (23) ◽  
pp. 12664
Author(s):  
Paige Coyne ◽  
Zach Staffell ◽  
Sarah J. Woodruff
Keyword(s):  
Repeated Measures ◽  
Screen Time ◽  
Small Sample ◽  
Daily Lives ◽  
Female Age ◽  
Repeated Measures Analysis ◽  
Post Hoc ◽  
Age Range ◽  
Larger Sample ◽  
Caucasian Female

(1) Background: The coronavirus (COVID-19) pandemic has caused disruptions in the daily lives of individuals in Canada. Purpose: Examine how total and specific (i.e., watching television, using social media, going on the Internet, playing video games, and engaging in virtual social connection) recreational screen time behaviours changed throughout the first six months of the COVID-19 pandemic, in comparison to pre-pandemic levels; (2) Methods: Sixty four Canadians (mostly Caucasian, female, age range = 21–77 years) completed monthly surveys from April to September of 2020; (3) Results: A one-way repeated measures analysis of variance (RM-ANOVA) and subsequent post hoc analysis revealed that total recreational screen time was statistically higher in late March/April (292.5 min/day ± 143.0) and into May, compared to pre-COVID-19 (187.8 min/day ± 118.3), before declining in subsequent months; (4) Conclusions: Generally, specific recreational screen time behaviours, such as time spent watching television, followed the same trend. Future studies with larger sample sizes and from other countries examining recreational screen time behaviours longitudinally over the pandemic are still needed to allow for greater generalizability.

scholarly journals Effect of Educational Workshops on Disaster Risk Perception in Nurses

2020 ◽  
pp. 270-278
Keyword(s):  
Risk Perception ◽  
Repeated Measures ◽  
Intervention Group ◽  
Round Table ◽  
Disaster Risk ◽  
National Standards ◽  
Control Group ◽  
Repeated Measures Analysis ◽  
Post Hoc ◽  
And Control

INTRODUCTION: The enhancement of nurses’ risk perception plays a significant role in their preparedness during disasters and emergencies. Therefore, this study aimed to investigate the effect of educational workshops on disaster risk perception in nurses METHODS: This randomized controlled field trial study included 62 nurses working at Razi Hospital, Birjand, Iran. The participants were divided into intervention and control groups. The intervention group was then requested to participate in a one-day intensive educational workshop based on the current national standards. The workshop content included a combination of lecturing methods, round-table exercises, and film display. The data were collected using the demographic characteristic form and researcher-made questionnaires measuring the nurses’ risk perception during disasters and emergencies. Subsequently, the data were analyzed using independent t-test, repeated measures analysis, and Bonferroni post hoc tests. FINDINGS: The mean total score of risk perception were significantly higher in the intervention group before, immediately, and two months after the workshop session, compared to those in the control group (P˂0.001). CONCLUSION: The implementation of nurses’ national preparation program during disasters and emergencies can result in an increase in the nurses’ risk perception during these events. Therefore, regarding the importance of nurses’ preparedness in confrontation with disasters and emergencies, it seems necessary to integrate the National Preparedness Program into the educational programs immediately after recruitment and in the form of in-service courses.

Effects of Breathy Voice Source on Ratings of Hypernasality

2005 ◽  
Vol 42 (6) ◽  
pp. 641-648 ◽  
Author(s):  
Setsuko Imatomi
Keyword(s):  
Cleft Palate ◽  
Repeated Measures ◽  
Voice Disorder ◽  
Academic Training ◽  
Clinical Experiences ◽  
Point Scale ◽  
Voice Source ◽  
Cleft Palate Speech ◽  
Repeated Measures Analysis ◽  
Post Hoc

Objective To investigate the effects of breathy voice sources on ratings of hypernasality using synthesized speech. Methods Speech samples were obtained from children with cleft palates who demonstrated varying degrees of hypernasality and from a child with a voice disorder. Sources with 6 degrees of breathiness were created: a breathy source and five synthesized sources with lowered harmonics-to-noise ratio (HNR) values by the addition of impulses. These sources and each original (clear) source were combined with three kinds of filters: mild, moderate, and severely hypernasal. Consequently, 21 ([6 + 1] × 3) stimuli for each vowel (/a/ and /i/) were obtained for ratings. Participants Thirteen speech pathologists with academic training and various clinical experiences with cleft palate speech rated hypernasality of the stimuli on a 5-point scale. Main Outcome Measures Ratings of hypernasality for breathy and clear stimuli were analyzed using a repeated measures analysis of variance. Results The effects of breathy source on ratings of hypernasality were significant for the following filters: mild hypernasal /a/, severe hypernasal /a/, mild hypernasal /i/, and moderate hypernasal /i/. A post-hoc comparison test demonstrated that the more breathy sources (BH0 or BH2) generally increased the hypernasality score for mild hypernasal filters and decreased it for moderate and severe hypernasal filters. The less breathy sources (BH3, BH4, and BH5) hardly affected the ratings. Conclusion The effects of breathiness on ratings of hypernasality seem to moderate rather than to mask perceived hypernasality. That is, breathiness raises slight hypernasality, whereas it reduces severe hypernasality.

scholarly journals The Effect of Clinical Pilates on Functional Movement in Recreational Runners

2017 ◽  
Vol 38 (10) ◽  
pp. 776-780 ◽  
Author(s):  
Anna Laws ◽  
Sean Williams ◽  
Cassie Wilson
Keyword(s):  
Repeated Measures ◽  
Functional Movement Screen ◽  
Contributing Factors ◽  
Post Intervention ◽  
Functional Movement ◽  
Repeated Measures Analysis ◽  
Significant Difference ◽  
Movement Ability ◽  
Recreational Runners ◽  
Post Hoc

AbstractBiomechanical imbalances and inefficient functional movements are considered contributing factors to running-related injuries. Clinical Pilates uses a series of exercises focused on retraining normal movement patterns. This study investigated whether a 6-week course of Clinical Pilates improves functional movement and thereby, potentially, reduces the risk of running-related injuries associated with movement dysfunction. A modified functional movement screen was used to analyze the functional movement ability of forty runners. Forty participants completed a 6-week course of Clinical Pilates delivered by a Clinical Pilates instructor. The movement screen was carried out 3 times for each runner: 6 weeks pre-intervention (baseline), within one week pre-intervention (pre) and within one week post-intervention (post). Repeated-measures analysis of variance and post-hoc tests found significant increases in scores between baseline and post (mean±SD; 13.4±2.4 vs. 17.0±1.7, p<0.01) and pre and post (mean±SD; 13.5±2.5 vs. 17.0±1.7, p<0.01), but no significant difference between baseline and pre (p=0.3). A 6-week course of Clinical Pilates significantly improves functional movement in recreational runners, and this may lead to a reduction in the risk of running-related injuries.

scholarly journals Comparison of Placido, Scheimpflug and Combined Dual Scheimpflug-Placido Technologies in Evaluating Anterior and Posterior CLMI, SimK's as well as Kmax, in Keratoconic and Postrefractive Surgery Ectasia

2012 ◽  
Vol 1 (1) ◽  
pp. 44-52 ◽  
Author(s):  
Thomas F Mauger ◽  
Ashraf M Mahmoud ◽  
Cynthia J Roberts ◽  
Lena V Chheda ◽  
Rebecca A Kuennen ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Ohio State University ◽  
State University ◽  
Post Hoc Analysis ◽  
Repeated Measures Analysis ◽  
Financial Interests ◽  
The Difference ◽  
The Ohio State University ◽  
Map Data ◽  
Post Hoc

ABSTRACT Purpose To calculate and compare cone location and magnitude index (CLMI), Kmax and other corneal measures derived from three different technologies, Placido, Scheimpflug, and a combination dual Scheimpflug-Placido device, from the same group of eyes with keratoconus and postrefractive surgery corneal ectasia. Methods Keratoconus (n = 26) eyes of (n = 19) subjects and postrefractive surgery ectasia (n = 5) eyes of (n = 5) subjects were selected to have measurements performed using the Keratron Scout, Pentacam HR and Galilei Dual Scheimpflug Analyzer. Device-generated SimK's and device-specific CLMI and Kmax indices as well as map data, were exported from each device. Index values for multiple exams were averaged. The map data were processed using The Ohio State University Corneal Topography Tool (OSUCTT) to calculate CLMI parameters, Kmax and SimK values using consistent algorithms on all three devices. Maps were averaged before calculation for multiple examinations. Repeated measures analysis of variance and post- hoc analysis were used to identify differences between devices. Results The anterior axial CLMI calculated from the Keratron data was significantly higher than CLMI for the Galilei (p = 0.0443) or Pentacam (p < 0.0004) with keratoconus, 12.23 compared with 11.20 and 11.00 diopters, respectively. Kmax was also significantly higher in the Keratron than the Galilei (p = 0.0063) or the Pentacam (p < 0.0002). Galilei and Pentacam were not significantly different from each other in either CLMI (p = 0.6287) or Kmax (p = 0.2115). The anterior CLMI values for the postrefractive surgery ectasia eyes were not significantly different between devices. Posterior CLMI values were calculated from the Galilei and Pentacam data and were −2.60 and −2.46 diopters (p = 0.1173) for keratoconus and −2.66 and −3.04 diopters (p = 0.2242) for postrefractive surgery ectasia. Conclusion The small cone Placido measured dioptric values that were greater than the pure Scheimpflug system, but the difference was only about 1 diopter, which is not relevant clinically in evaluating and managing ectasia. The combined dual Scheimpflug-Placido system produced measured dioptric values between the other two technologies. The anterior CLMI calculations accurately predicted keratoconus with all three devices. The posterior CLMI in ectasia may be a potentially valuable calculation in demonstrating asymmetric steepening. How to cite this article Mauger TF, Mahmoud AM, Roberts CJ, Chheda LV, Kuennen RA, Hendershot AJ, Lembach RG. Comparison of Placido, Scheimpflug and Combined Dual Scheimpflug-Placido Technologies in Evaluating Anterior and Posterior CLMI, SimK's as well as Kmax, in Keratoconic and Postrefractive Surgery Ectasia. Int J Keratoco Ectatic Corneal Dis 2012;1(1):44-52. • C Roberts is a Consultant for Oculus Optikgerate GmbH and Ziemer Ophthalmic Systems AG, and has an interest in the GALILEI. • A Mahmoud has an interest in the GALILEI. • T Mauger, L Chheda, R Kuennen, A Hendershot, and R Lembach have no financial interests.

Dilutional Effect of Ethylenediaminetetraacetic Acid on Packed Cell Volume in Healthy Dogs

2021 ◽  
Author(s):  
Elizabeth H. Ross ◽  
Amy Dickinson
Keyword(s):  
Cell Volume ◽  
Packed Cell Volume ◽  
Repeated Measures ◽  
Ethylenediaminetetraacetic Acid ◽  
Initial Distribution ◽  
Repeated Measures Analysis ◽  
Red Blood Cell Count ◽  
Dog Blood ◽  
Healthy Dogs ◽  
Post Hoc

ABSTRACT Packed cell volume (PCV) is commonly used to assess and monitor red blood cell count in animals, but the results can be altered if inappropriate ratios of anticoagulant/blood are used. The purpose of this study was to determine the effect of ideally filled, overfilled, and underfilled K3 ethylenediaminetetraacetic acid (EDTA) tubes with various volumes of healthy dog blood on centrifuged PCV. Six milliliters of blood was obtained from 94 blood donors each. Initial distribution was injected into two nonheparinized microhematocrit tubes. The remainder was instilled into 1.3 mL K3 EDTA spray-dried tubes as 1.5 mL, 1.3 mL, 0.75 mL, 0.5 mL, and 0.25 mL aliquots. Normality was determined using the D’agostino–Pearson method and by visual examination of histograms. Data were analyzed using a repeated-measures analysis of variance with post hoc testing using Tukey's test. There is a statistically significant decrease in the PCV between all groups with progressive underfilling of tubes (P &lt; .0001). The closest difference is between 1.5 and 1.3 mL (P = .0138). Our study suggested that underfilling K3 EDTA tubes significantly and negatively influences the PCV in healthy dogs. Using underfilled K3 EDTA tubes result in a lower PCV compared with directly filled microhematocrit tubes without anticoagulant.

scholarly journals Performance of Physical Activities by Adolescents With Cerebral Palsy

2007 ◽  
Vol 87 (1) ◽  
pp. 77-87 ◽  
Author(s):  
Robert J Palisano ◽  
Wendy P Copeland ◽  
Barbara E Galuppi
Keyword(s):  
Cerebral Palsy ◽  
Repeated Measures ◽  
Transition Planning ◽  
Physical Therapist ◽  
Physical Activities ◽  
Time Interaction ◽  
Repeated Measures Analysis ◽  
Main Effect ◽  
Post Hoc ◽  
Gmfcs Level

Background and Purpose Mobility and self-care are important considerations for successful transition of adolescents with cerebral palsy to adulthood. The purpose of this study was to characterize performance of physical activities from the perspective of adolescents themselves. Subjects The subjects were 156 adolescents with cerebral palsy, 11.6 to 17.7 years of age. Methods A therapist completed the Gross Motor Function Classification System (GMFCS). Adolescents completed the Activities Scale for Kids–Performance Version (ASKp) twice over a 1-year period. Results A repeated-measures analysis of variance indicated a main effect for GMFCS level. The main effect for time and the GMFCS level × time interaction were not significant. Post hoc comparisons indicated that ASKp scores differed among all GMFCS levels. Discussion and Conclusion Performance of physical activities by adolescents with cerebral palsy differed based on GMFCS level and did not change over 1 year. The ASKp scores of adolescents in levels II through V suggest the need for physical assistance at times throughout the day. The results have implications for the role of the physical therapist in transition planning.

scholarly journals Detecting variable responses within fMRI time-series of volumes-of-interest using repeated measures ANOVA

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 563 ◽  
Author(s):  
Paul M. Macey ◽  
Philip J. Schluter ◽  
Katherine E. Macey ◽  
Ronald M. Harper
Keyword(s):  
Repeated Measures ◽  
A Priori ◽  
Brain Regions ◽  
Response Patterns ◽  
Whole Brain ◽  
Repeated Measures Analysis ◽  
Average Signal Intensity ◽  
Respiratory Challenge ◽  
Post Hoc

We present an approach to analyzing fMRI timetrends from volumes-of-interest (VOI) within and between subject groups using repeated measures analysis of variance (RMANOVA), which allows temporal patterns to be examined without an a priori model of expected timing or pattern of response. The method serves as a complement to whole-brain voxel-based analyses, and is useful for detecting complex responses within pre-determined brain regions, or as a post-hoc analysis of regions of interest identified by whole-brain assessments. We illustrate an implementation of the technique in the statistical software package SAS. VOI timetrends are extracted from conventionally preprocessed fMRI images. A timetrend of average signal intensity across the VOI during the scanning period is calculated for each subject. The values are scaled relative to baseline periods, imported into SAS, and the procedure PROC MIXED implements the RMANOVA. The ensuing results allow determination of significant overall effects, and time-point specific within- and between-group responses relative to baseline. We illustrate the technique using fMRI data from two groups of subjects who underwent a respiratory challenge. RMANOVA allows insight into the timing of responses and response differences between groups, and so is suited to fMRI paradigms eliciting complex response patterns.

Degradation Potential of Bulk Versus Incrementally Applied and Indirect Composites: Color, Microhardness, and Surface Deterioration

2016 ◽  
Vol 41 (6) ◽  
pp. e195-e208 ◽  
Author(s):  
M El Gezawi ◽  
D Kaisarly ◽  
H Al-Saleh ◽  
A ArRejaie ◽  
F Al-Harbi ◽  
...  
Keyword(s):  
Orange Juice ◽  
Repeated Measures ◽  
Vickers Microhardness ◽  
Color Stability ◽  
Ph Values ◽  
Repeated Measures Analysis ◽  
Indirect Composites ◽  
Water Ph ◽  
Indirect Composite ◽  
Post Hoc

SUMMARY This study investigated the color stability and microhardness of five composites exposed to four beverages with different pH values. Composite discs were produced (n=10); Filtek Z250 (3M ESPE) and Filtek P90 (3M ESPE) were applied in two layers (2 mm, 20 seconds), and Tetric N-Ceram Bulk Fill (TetricBF, Ivoclar Vivadent) and SonicFill (Kerr) were applied in bulk (4 mm) and then light cured (40 seconds, Ortholux-LED, 1600 mW/cm2). Indirect composite Sinfony (3M ESPE) was applied in two layers (2 mm) and cured (Visio system, 3M ESPE). The specimens were polished and tested for color stability; ΔE was calculated using spectrophotometer readings. Vickers microhardness (50 g, dwell time=45 seconds) was assessed on the top and bottom surfaces at baseline, 40 days of storage, subsequent repolishing, and 60 days of immersion in distilled water (pH=7.0), Coca-Cola (pH=2.3), orange juice (pH=3.75), or anise (pH=8.5) using scanning electron microscopy (SEM). The materials had similar ΔE values (40 days, p&gt;0.05), but TetricBF had a significantly greater ΔE than P90 or SF (40 days). The ΔE was less for P90 and TetricBF than for Z250, SonicFill, and Sinfony (60 days). Repolishing and further immersion significantly affected the ΔE (p&lt;0.05) except for P90. All composites had significantly different top vs bottom baseline microhardnesses. This was insignificant for the Z250/water, P90/orange juice (40 days), and Sinfony groups (40 and 60 days). Immersion produced variable time-dependent deterioration of microhardness in all groups. Multivariate repeated measures analysis of variance with post hoc Bonferroni tests were used to compare the results. ΔE and microhardness changes were significantly inversely correlated at 40 days, but this relationship was insignificant at 60 days (Pearson test). SEM showed degradation (40 days) that worsened (60 days). Bulk-fill composites differ regarding color-stability and top-to-bottom microhardness changes compared with those of other composites. P90 showed better surface degradation resistance. In conclusion, bulk-fill composites are not promising alternatives to incremental and indirect composites regarding biodegradation.

Physiologic Axial Load, Frictional Resistance, and the Football Shoe—Surface Interface

2003 ◽  
Vol 24 (7) ◽  
pp. 551-556 ◽  
Author(s):  
Patrick W. Cawley ◽  
Robert S. Heidt ◽  
Pierce E. Scranton ◽  
Gary M. Losse ◽  
Mark E. Howard
Keyword(s):  
Repeated Measures ◽  
Axial Load ◽  
Frictional Resistance ◽  
Axial Rotation ◽  
Axial Loads ◽  
Torsional Resistance ◽  
Repeated Measures Analysis ◽  
Athletic Shoes ◽  
The Moment ◽  
Post Hoc

The purpose of this investigation was to report on the interaction between different types of athletic shoes and playing surfaces using physiologic loads of 40 and 220 lbs. This is a continuation of our previous report using a load of 25 lbs. Nine shoes by three manufacturers were characterized as turf, court, molded cleat, or traditional cleat and tested on both natural grass and synthetic turf. A specially designed pneumatic testing device was used in order to measure translational resistance and rotational torque of the shoe-surface interface. Measurements were acquired for 1) force-X describing translational loading, 2) moment-Y describing the torque generated by linear translation, and 3) moment-Z describing the moment generated by axial rotation, and data were analyzed using repeated measures analysis of variance and Tukey's post-hoc comparison. It was found that increased the axial loads from 40 to 220 lbs significantly increased the frictional resistance ( p < .05) between the shoe and the artificial turf surface in a nonlinear fashion. Turf shoes demonstrated the most frictional resistance of any group for this condition. Increases in the forces generated in linear translation from the axial load of 40 to 220 lbs produced the most significant increases of any resistance test on the turf surface. The cleated shoes (both traditional and molded) generated the highest frictional and torsional resistance on the grass surface when compared to the other categories of shoes. Grass generated higher peak moments than turf for the cleated shoes. These results demonstrate the considerable differences between laboratory and physiologic conditions and that the increase in frictional resistance is nonlinear with increasing loads.

scholarly journals Aging and cortical bone density of mandible with CBCT

2018 ◽  
Vol 5 (2) ◽  
pp. 23 ◽  
Author(s):  
Ichiro Ogura ◽  
Yoshihiko Sasaki ◽  
Mikiko Sue ◽  
Takaaki Oda ◽  
Ayako Kameta ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Repeated Measures ◽  
Age Groups ◽  
Rank Correlation ◽  
Young Male ◽  
Mineral Density ◽  
Elderly Male ◽  
Female Age ◽  
Male Age ◽  
Age Range

Purpose: To investigate changes of mandibular cortical bone with age using cone-beam computed tomography (CBCT).Materials and methods: We reviewed the CBCT images of 202 patients who were examined in mandibular region by CBCT. The patients were classified into 2 age groups: young group (≦50 years; 51 male (age range 13-50 years, mean age 27.6 years) and 73 female (age range 11-50 years, mean age 30.0 years)) and elderly group (＞50 years; 22 male (age range 53-74 years, mean age 63.8 years) and 56 female (age range 51-82 years, mean age 66.3 years)). The relationship between age and mandibular cortical bone radiographic density as gray values using CBCT was assessed by Pearson's rank correlation test. Regarding age groups, mandibular cortical bone radiographic density using CBCT was performed with one-way repeated measures analysis of variance with Tukey's HSD test.Results: Cortical bone radiographic density in female using CBCT was significantly correlated to age (Y = -6.741X + 1946, R2 = 0.351, P = .000). Furthermore, the cortical bone radiographic density in young female (1754 ± 144) was significantly higher than that in young male (1554 ± 164, P = .000), elderly male (1533 ± 115, P = 0.000) and elderly female (1484 ± 228, P = 0.000).Conclusions: The present study confirmed the changes of mandibular cortical bone with age in female using CBCT. Furthermore, the evaluation of mandibular cortical bone using CBCT can be helpful in intercepting patients at risk of reduced bone mineral density.

Sign in / Sign up

Export Citation Format

Share Document