scholarly journals Objective measurement of physical activity in Macaca fascicularis

1982 ◽  
Vol 16 (3) ◽  
pp. 240-243
Author(s):  
Wayne T. Corbett ◽  
Harry M. Schey ◽  
A. W. Green
Keyword(s):  
Physical Activity ◽  
Standard Deviation ◽  
Macaca Fascicularis ◽  
Living Environment ◽  
Activity Levels ◽  
Free Living ◽  
Activity Measurements ◽  
Active Intermediate ◽  
The Mean ◽  
The Relationship

The mean and standard deviation over 24 h for 3 groups of animals - active, intermediate and inactive - in physical activity units were 10948 ± 3360, 2611 ± 1973 and 484 ± 316 respectively. The differences were significant ( P = 0·004), demonstrating the ability of the method to distinguish between groups that can be visibly differentiated. The small within-animal physical activity standard deviation (18·85 PAU) obtained in another group, suggests that it also yields reliable physical activity measurements for non-human primates. The monitoring device used can discriminate between individual nonhuman primate physical activity levels in a free-living environment and does not alter daily behaviour. This makes possible the study of the relationship between physical activity and atherosclerosis in nonhuman primates.

scholarly journals IS VARIABILITY OF FREE-LIVING ACTIVITY ASSOCIATED WITH PHYSICAL AND MENTAL FATIGABILITY IN OLDER ADULTS?

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S233-S234
Author(s):  
Jessica L Graves ◽  
Robert T Krafty ◽  
Jaroslaw Harezlak ◽  
Eric J Shiroma ◽  
Nancy W Glynn
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Cohort Study ◽  
Standard Deviation ◽  
Rise Time ◽  
Activity Patterns ◽  
Relative Activity ◽  
Energy Reserves ◽  
Free Living ◽  
The Relationship

Abstract Greater fatigability in older adults may be moderated by physical activity (PA). However, what features of PA timing are most strongly related to fatigability remains unknown. We examined the relationship between variability of free-living activity patterns and perceived physical and mental fatigability using the Pittsburgh Fatigability Scale (PFS, 0-50pts, higher=greater fatigability) in older adults from the Developmental Epidemiologic Cohort Study (DECOS, n=57, age=70-91yrs, 61% female). We assessed PA using ActiGraph GT3X+ over 7 days. Mean activity, standard deviation (SD) of mean activity across days, and relative activity [(mean at each bin)/(total mean)] were calculated across 24-hours in 4-hour bins , adjusting for estimated rise-time. Lower SD of PA from 0-4 hours after rising was associated with greater PFS physical scores (r=-0.27, p=0.05). No measures of PA correlated with PFS mental scores. In older adults with lower physical fatigability, associations with greater variability in activity may indicate larger energy reserves.

Objectively measuring children's physical activity levels in a free living environment

2017 ◽  
Vol 20 ◽  
pp. e104 ◽  
Author(s):  
C. Desmet ◽  
R. Sutherland ◽  
L. Davies ◽  
L. Wolfenden ◽  
P. Butler ◽  
...  
Keyword(s):  
Physical Activity ◽  
Living Environment ◽  
Activity Levels ◽  
Free Living ◽  
Physical Activity Levels ◽  
Children’S Physical Activity

scholarly journals THE INFLUENCE OF TEACHER-STUDENT COMMUNICATION ON THE IMPORTANCE OF PHYSICAL EDUCATION

2021 ◽  
pp. 635
Author(s):  
Carlota Krahe ◽  
Paloma Escamilla-Fajardo ◽  
Samuel López-Carril
Keyword(s):  
Physical Activity ◽  
Standard Deviation ◽  
Physical Education ◽  
Linear Regression ◽  
Data Processing ◽  
Healthy Lifestyle ◽  
Significant Risk ◽  
Teacher Student ◽  
The Mean ◽  
The Relationship

During adolescence, there is a significant risk of sports abandonment associated with sedentarism and overweight. For this reason, Physical Education (PE) classes should be an opportunity to bring physical activity and sport closer to schoolchildren developing, and consolidating healthy lifestyle habits. Considering the importance that teaching communication procedures can have in the motivation of students, and given the lack of specific studies that investigate the influence of these processes on the motivation to practice sport in the context of PE, the aim of this study is to determine the effect of the teacher's communicational dimensions (challenging, encouragement and praise, non-verbal support, understanding and friendliness, and controlling) on the perception of the importance given to PE. The sample was composed of a total of 203 PE students between 10 and 16 years old. The mean (M), standard deviation (SD), skewness (S) and kurtosis (K) of the dimensions of the Teacher Communication (TC) and Importance of Physical Education (IPE) were analysed. In order to determine the relationship between the variables analysed, Pearson’s correlation is used. With an aim of determining the effect of the perception of the TC in the classroom on the students' IPE, linear regression is carried out. In data processing, the SPSS 23.0 software is used. The results obtained show that the TC has an effect of 19.7% on IPE. Understanding and friendliness, and controlling dimension are being analysed with the highest standardized regressions coefficient in students' perception of IPE.

Step Count Validation of a Tri-Axial Accelerometer During Walking and Jogging

2012 ◽  
Author(s):  
Emma Fortune ◽  
Vipul Lugade ◽  
Melissa Morrow ◽  
Kenton Kaufman
Keyword(s):  
Physical Activity ◽  
Wearable Sensors ◽  
Living Environment ◽  
Activity Levels ◽  
Light Weight ◽  
Free Living ◽  
Step Counts ◽  
Step Counting ◽  
High Level ◽  
Very High

Gait analysis is an important tool in assessing the health and activity levels of patients and regular physical activity has been associated with health improvements in a number of populations. Step counting is one of the most commonly used measures of physical activity [1] and many studies have investigated the use of wearable sensors for step counts [2–4]. Their small size and light weight mean that they may be used in a free living environment and are suitable for home deployment. One of the main issues associated with step counts as a measure of physical activity is that a very high level of accuracy in step detection is needed.

scholarly journals Muscle fat content and abdominal adipose tissue distribution investigated by magnetic resonance spectroscopy and imaging in obese children and youths

2012 ◽  
Vol 4 (1) ◽  
pp. 11 ◽  
Author(s):  
Cilius E. Fonvig ◽  
Dorthe S. Bille ◽  
Elizaveta Chabanova ◽  
Tenna R. H. Nielsen ◽  
Henrik S. Thomsen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Adipose Tissue ◽  
Standard Deviation ◽  
Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Activity Levels ◽  
Obese Children ◽  
Physical Activity Levels ◽  
Adipose Tissue Volume ◽  
The Mean

The degree of fat deposition in muscle and its implications for obesity-related complications in youth are not well understood. One hundred and fifty-nine patients (mean age: 13.3 years; range: 6-20) with a body mass index (BMI) >90th percentile for age and sex were included. Muscle fat content (MFC) was measured in the psoas muscle by proton magnetic resonance spectroscopy. The patients were assigned to two groups: MFC <5% or ³5%. Visceral adipose tissue volume (VAT) and subcutaneous adipose tissue volume (SAT) were measured by magnetic resonance imaging. Blood samples were obtained from 119 patients, and liver enzyme concentrations and other variables were measured. The data were analysed to detect any associations between MFC and BMI standard deviation scores, VAT and SAT, blood values, and physical activity levels. The mean BMI standard deviation score (SDS) was 3.04 (range 1.32-5.02). The mean MFC was 8.9% (range 0.8-46.7), and 118 (74.2%) of 159 patients had an MFC ³5%. Children with a high MFC had a higher BMI SDS (P=0.03) and had a higher VAT, but not SAT or SAT/VAT ratio. Both intramyocellular lipid (IMCL) and extramyocellular lipid (EMCL) content were elevated in patients with an MFC ³5%. Blood values and physical activity levels did not differ between the two groups. Severely obese children and adolescents tend to have a high MFC, which is associated with elevated VAT and IMCL and EMCL content. An increased MFC may be associated with impaired metabolic processes, which may predispose young people to obesity-related complications.

scholarly journals Actigraphy-Based Associations Between Chronotype and Physical Activity in Older Adults

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 784-784
Author(s):  
Hilary Hicks ◽  
Genna Losinski ◽  
Alexandra Laffer ◽  
Amber Watts
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Older Adult ◽  
Total Activity ◽  
Time Of Day ◽  
Living Environment ◽  
Future Research ◽  
Free Living ◽  
Middle Aged Adults ◽  
The Relationship

Abstract Chronotype is a measure of the time of day people prefer to be most active or to sleep. There is a known relationship between chronotype and engagement in physical activity in young and middle-aged adults, such that individuals with a morning chronotype engage in more physical activity compared to those with an evening chronotype. Our study aimed to replicate this finding in an older adult sample. Actigraphy can be used to measure both physical activity and sleep. Because of its ability to capture information about bedtime and arise time, actigraphy can serve as an objective measurement of chronotype. Participants were 159 older adults (ages 60-89, M = 74.73) who wore an ActiGraph GT9X on their non-dominant wrist for 7 days in a free-living environment. Chronotype was measured continuously using the midpoint of the ActiGraph-calculated sleep interval. We used multiple regression to determine the relationship between physical activity and chronotype adjusting for sex, age, and body mass index. Results suggest that while these variables explain a significant amount of variance in physical activity, R2 = 19.0%, F (4, 152) = 8.921, p < .001, there is no significant relationship between chronotype and total physical activity in our sample, ß= -.117, p = .114. These findings are inconsistent with what has been shown in younger samples and suggest that the relationship between chronotype and physical activity may change as one ages. Future research should consider whether particular physical activity intensities (vs. total activity) may have a relationship with chronotype in older adults.

scholarly journals Evaluation of pharmacy-led weight management service to minimise the risk of cardiovascular disease

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Aliki Peletidi ◽  
Reem Kayyali
Keyword(s):  
Physical Activity ◽  
Weight Management ◽  
Activity Levels ◽  
Management Service ◽  
Initial Weight ◽  
Public Health Services ◽  
Clinical Role ◽  
Physical Activity Levels ◽  
Before And After ◽  
The Mean

Abstract Aims The primary aim of the programme was a minimum of a 5% weight reduction of the initial weight, while the secondary outcomes were a reduction in participants’ body mass index (BMI), waist circumference (WC), blood pressure (BP), AUDIT-C score and an increase in the Mediterranean diet (MD) score and an improvement in physical activity levels. Methods This 'before and after' study was a 10-week weight management (WM) programme and it was developed and delivered in community pharmacies in Patras chosen for convenience, thus consisting the first service of its type in Greece. The sample size was calculated (n = 96) based on the mean BMI for a Greek male and female individual, and the standard deviation (SD) of weight at baseline of 14 kg. Results Nearly every participant enrolled in the 20 participating pharmacies, 97.4% (n = 114/117), achieved the programme’s aim, losing at least 5% of their initial weight. The mean percentage of total weight loss of the 117 participants at the 10th week was 8.97% (SD 2.65), and the t-test showed statistically significant results (P-value < 0.001; 95% CI [8.48, 9.45]). A significant reduction in the waist-to-height ratio (WHtR) was observed in both male (P-value = 0.004) and female (P-value < 0.001) participants. The participants’ BP and AUDIT-C score and physical activity levels significantly improved (P-value < 0.001), as well as their MD score. Conclusion This study provides the first evidence that Greek pharmacists have the potential to play an important role within primary healthcare and that after training they are able to provide public health services for both the public’s benefit and their clinical role enhancement.

scholarly journals Daily Sitting for Long Periods Increases the Odds for Subclinical Atheroma Plaques

2021 ◽  
Vol 10 (6) ◽  
pp. 1229
Author(s):  
Jose Luis Perez-Lasierra ◽  
Martin Laclaustra ◽  
Pilar Guallar-Castillón ◽  
Jose Antonio Casasnovas ◽  
Jose Antonio Casajús ◽  
...  
Keyword(s):  
Physical Activity ◽  
Subclinical Atherosclerosis ◽  
Sitting Time ◽  
Health Study ◽  
Activity Levels ◽  
Cross Sectional ◽  
Trained Personnel ◽  
Atherosclerosis Development ◽  
Sectional Analysis ◽  
The Relationship

Sedentarism is a risk factor for cardiovascular disease (CVD), but currently it is not clear how a sedentary behavior such as long sitting time can affect atherosclerosis development. This study examined the relationship between sitting time and the prevalence of carotid and femoral subclinical atherosclerosis. A cross-sectional analysis based on a subsample of 2082 participants belonging to the Aragon Workers’ Health Study was carried out. Ultrasonography was used to assess the presence of plaques in carotid and femoral territories; the validated Spanish version of the questionnaire on the frequency of engaging in physical activity used in the Nurses’ Health Study and the Health Professionals’ was used to assess physical activity and sitting time; and demographic, anthropometric, and clinical data were obtained by trained personnel during the annual medical examination. Participants were categorized into <9 h/day and ≥9 h/day sitting time groups. After adjusting for several confounders, compared with participants that remain seated <9 h/day, those participants who remain seated ≥9 h/day had, respectively, OR = 1.25 (95%CI: 1.01, 1.55, p < 0.05) and OR = 1.38 (95%CI: 1.09, 1.74, p < 0.05) for carotid and any-territory plaque presence. Remaining seated ≥9 h/day is associated with higher odds for carotid and any-territory plaque presence independently of physical activity levels and other cardiovascular risk factors.

Maximal Oxygen Uptake and Daily Physical Activity in 7- to 12-Year-Old Boys

1993 ◽  
Vol 5 (4) ◽  
pp. 357-366 ◽  
Author(s):  
Hazzaa M. Al-Hazzaa ◽  
Mohammed A. Sulaiman
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Open Circuit ◽  
Daily Physical Activity ◽  
Activity Level ◽  
Activity Levels ◽  
School Time ◽  
The Relationship

The present study examined the relationship between maximal oxygen uptake (V̇O2max) and daily physical activity in a group of 7- to 12-year-old boys. V̇O2max was assessed through the incremental treadmill test using an open circuit system. Physical activity level was obtained from heart rate telemetry outside of school time for 8 hrs during weekdays and during 40 min of physical education classes. The findings indicated that the absolute value of V̇O2max increased with age, while relative to body weight it remained almost the same across age, with a mean of 48.4 ml · kg−1 · min−1. Moreover, heart rate telemetry showed that the boys spent a limited amount of time on activities that raise the heart rate to a level above 160 bpm (an average of 1.9%). In addition, V̇O2max was found to be significantly related to the percentage of time spent at activity levels at or above a heart rate of 140 bpm, but not with activity levels at or above a heart rate of 160 bpm.

scholarly journals Agreeing in assessment of hyperactivity in children

2010 ◽  
Vol 63 (3-4) ◽  
pp. 249-253 ◽  
Author(s):  
Spela Golubovic ◽  
Tatjana Tubic
Keyword(s):  
Physical Activity ◽  
Standard Deviation ◽  
Rating Scale ◽  
School Age ◽  
Category Labels ◽  
The Mean ◽  
High Level ◽  
Attention Level

Introduction The study analyzes the accuracy and agreeability in evaluating hyperactivity in children. Material and methods The study sample was made of 139 children of pre-school age who participated in organized forms of physical activity. The mean age in the sample was 6.38, with a standard deviation of 1.00 years. Conner's Rating Scale was used to measure hyperactivity, and tests were also conducted to evaluate attention levels. Four independent reviewers observed each child's behavior by completing the scale. Results and discussion Eighteen children, or 13.5 percent of the sample, were identified as hyperactive in the analysis. These children also scored lower in the attention level tests. The results of the study show a correlation between the evaluators to be relatively high, bearing in mind the sources' independence. Conclusion It can be concluded that there is a mid to high-level correlation between certain reviewers' evaluations. However, even with a clearly defined view on categorizing certain behaviors as problematic, category labels still differ among evaluators.

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