scholarly journals Secular changes in the anthropometrics of Chilean workers and its implication in design

Work ◽  
2021 ◽  
pp. 1-11
Author(s):  
H.I. Castellucci ◽  
C.A. Viviani ◽  
J.F.M. Molenbroek ◽  
P.M. Arezes ◽  
M. Martínez ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Confidence Interval ◽  
Secular Trend ◽  
Body Measurements ◽  
Anthropometric Data ◽  
Secular Changes ◽  
Two Samples ◽  
Highly Correlated ◽  
Relative Differences ◽  
Office Furniture

BACKGROUND: Anthropometrics is very important when ensuring a physical match between end users and product or workstations. OBJECTIVES: The purpose of this study are twofold, to provide anthropometric data for the design of products and to examine the secular changes in the adult Chilean workers in a period of more than 20 years. METHODS: Nineteen anthropometric measurements from two samples from 1995 and 2016 were compared using independent t-test (95% confidence interval), where additionally absolute and relative differences were calculated. RESULTS: The secular trend observed for Stature is characterized by an increase average of 20mm and 10.5mm per decade for females and males, respectively. There is a positive secular trend for both genders, which is observed for most of the selected body measurements. The most pronounced increases were onWeight, Shoulder breadth, Body mass index, Popliteal height; Buttock-popliteal length and Hip width. CONCLUSIONS: Segmental dimensions that experienced a positive secular trend, together with Weight and Stature, are highly correlated with seating design, addressing the need to review products targeting Chilean adult workers, such as public transport seats, office furniture or industrial workplaces.

scholarly journals Association between body mass index and 1-year outcome after acute myocardial infarction

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
D.W Kim
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Body Mass Index ◽  
Confidence Interval ◽  
Body Mass ◽  
Cardiac Death ◽  
Funding Source ◽  
Group Iii ◽  
End Point ◽  
Group I

Abstract Background Beneficial effects of overweight and obesity on mortality after acute myocardial infarction (AMI) have been described as “Body Mass Index (BMI) paradox”. However, the effects of BMI is still on debate. We analyzed the association between BMI and 1-year major cardiocerebrovascular events (MACCE) after AMI. Methods and findings Among 13,104 AMI patients registered in an Institute of Health in Korea between November 2011 and December 2015, 10,568 patients who eligible for this study were classified into 3 groups according to BMI (Group I; <22 kg/m2, 22 ≤ Group II <26 kg/m2, Group III; ≥26 kg/m2). The primary end point was a composite of cardiac death (CD), myocardial infarction (MI), target vessel revascularization (TVR), and cerebrovascular events at 1 year. Over the median follow-up of 12 months, the composite of primary end point occurred more frequently in the Group I patients than in the Group III patients (primary endpoint: adjusted hazard ratio [aHR], 1.290; 95% confidence interval [CI] 1.024 to 1.625, p=0.031). Especially, cardiac death in MACCE components played a major role in this effect (aHR, 1.548; 95% confidence interval [CI] 1.128 to 2.124, p=0.007). Conclusions Higher BMI appeared to be good prognostic factor on 1-year MACCE after AMI. This result suggests that higher BMI or obesity might confer a protective advantage over the life-quality after AMI. Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): Research of Korea Centers for Disease Control and Prevention and the Korea Health Technology R&D Project, Ministry of Health & Welfare (HI13C1527), Republic of Korea.

scholarly journals Serum Cathepsin S Is Associated with Serum C-Reactive Protein and Interleukin-6 Independently of Obesity in Elderly Men

2010 ◽  
Vol 95 (9) ◽  
pp. 4460-4464 ◽  
Author(s):  
E. Jobs ◽  
U. Risérus ◽  
E. Ingelsson ◽  
J. Helmersson ◽  
E. Nerpin ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Confidence Interval ◽  
Regression Coefficient ◽  
Normal Weight ◽  
Cathepsin S ◽  
C Reactive Protein ◽  
Elderly Men ◽  
Community Based ◽  
Reactive Protein

Objective: Cathepsin S has been suggested provide a mechanistic link between obesity and atherosclerosis, possibly mediated via adipose tissue-derived inflammation. Previous data have shown an association between circulating cathepsin S and inflammatory markers in the obese, but to date, community-based reports are lacking. Accordingly, we aimed to investigate the association between serum levels of cathepsin S and markers of cytokine-mediated inflammation in a community-based sample, with prespecified subgroup analyses in nonobese participants. Methods: Serum cathepsin S, C-reactive protein (CRP), and IL-6 were measured in a community-based cohort of elderly men (Uppsala Longitudinal Study of Adult Men; mean age 71 years, n = 991). CRP and IL-6 were also measured at a reexamination after 7 yr. Results: After adjustment for age, body mass index, fasting plasma glucose, diabetes treatment, systolic blood pressure, diastolic blood pressure, hypertension treatment, serum cholesterol, serum high-density lipoprotein cholesterol, prior cardiovascular disease, smoking, and leisure time physical activity, higher cathepsin S was associated with higher CRP (regression coefficient for 1 sd increase, 0.13; 95% confidence interval 0.07–0.19; P < 0.001) and higher serum IL-6 (regression coefficient for 1 sd increase, 0.08; 95% confidence interval 0.01–0.14; P = 0.02). These associations remained similar in normal-weight participants (body mass index <25 kg/m2, n = 375). In longitudinal analyses, higher cathepsin S at baseline was associated with higher serum CRP and IL-6 after 7 yr. Conclusions: These results provide additional evidence for the interplay between cathepsin S and inflammatory activity and suggest that this association is present also in normal-weight individuals in the community.

scholarly journals A Computational Model of Non-optimal Suspiciousness in the Minnesota Trust Game

2021 ◽  
Author(s):  
Rebecca Kazinka ◽  
Iris Vilares ◽  
Angus MacDonald
Keyword(s):  
Decision Making ◽  
Risk Aversion ◽  
Computational Model ◽  
Inequity Aversion ◽  
Trust Game ◽  
Social Decision ◽  
Future Studies ◽  
Two Samples ◽  
Highly Correlated ◽  
Social Decision Making

This study modeled spite sensitivity (the worry that others are willing to incur a loss to hurt you), which is thought to undergird suspiciousness and persecutory ideation. Two samples performed a parametric, non-iterative trust game known as the Minnesota Trust Game (MTG). The MTG is designed to distinguish suspicious decision-making from otherwise rational mistrust by incentivizing the player to trust in certain situations. Individuals who do not trust even under these circumstances are particularly suspicious of their potential partner’s intentions. In Sample 1, 243 undergraduates who completed the MTG showed less trust as the amount of money they could lose increased. However, for choices where partners had a financial disincentive to betray the player, variation in the willingness to trust the partner was associated with suspicious beliefs. To further examine spite sensitivity, we modified the Fehr-Schmidt (1999) inequity aversion model, which compares unequal outcomes in social decision-making tasks, to include the possibility for spite sensitivity. In this case, an anticipated partner’s dislike of advantageous inequity (i.e., guilt) parameter could take on negative values, with negative guilt indicating spite. We hypothesized that the anticipated guilt parameter would be strongly related to suspicious beliefs. Our modification of the Fehr-Schmidt model improved estimation of MTG behavior. We isolated the estimation of partner’s spite-guilt, which was highly correlated with choices most associated with persecutory ideation. We replicated our findings in a second sample, where the estimated spite-guilt parameter correlated with self-reported suspiciousness. The “Suspiciousness” condition, unique to the MTG, can be modeled to isolate spite sensitivity, suggesting that spite sensitivity is separate from inequity aversion or risk aversion, and may provide a means to quantify persecution. The MTG offers promise for future studies to quantify persecutory beliefs in clinical populations.

scholarly journals Obesity and Skin Problems in Persons With a Lower Limb Amputation: An Observational Study

2021 ◽  
Author(s):  
Terezka S. Mollee ◽  
Pieter U. Dijkstra ◽  
Rienk Dekker ◽  
Jan H.B. Geertzen
Keyword(s):  
Body Mass Index ◽  
Body Weight ◽  
Confidence Interval ◽  
Body Mass ◽  
Lower Limb ◽  
Lower Limb Amputation ◽  
Limb Amputation ◽  
Residual Limb ◽  
Prevalence Of Obesity ◽  
The Impact

Abstract Background: A lower limb amputation can lead to weight gain and obesity. However, data regarding the prevalence of obesity in the Dutch population with a lower limb amputation are lacking. Furthermore, the impact of obesity on skin problems of the residual limb and the need of prosthetic repairs is unknown. The aim of this study was to determine the prevalence of obesity in Dutch persons with a lower limb amputation and to investigate the relationship between body weight, body mass index and skin problems of the residual limb and the frequency of prosthetic repairs. Methods: A survey was performed among adults with a unilateral lower limb amputation due to any cause, and who are user of a prosthesis. The survey consisted of measurement of the subjects’ body height and weight, a questionnaire which assessed self-reported skin problems in the previous month and factors potentially associated with these skin problems, and assessment of the frequency of visits to the orthopedic workshop. Results: In total, 413 persons were enrolled. Of them, 39% (95% confidence interval 35%−44%) was overweight and 28% (95% confidence interval 24%−33%) was obese. A total of 77% (95% confidence interval 73%−81%) reported one or more skin problems in the past month. Body weight and body mass index were neither associated with the presence of skin problems in general nor with the number of prosthetic repairs. Persons with severe skin problems had a slightly lower body mass index (26.6 kg/m2 vs. 28.0 kg/m2, p = 0.012). Persons with skin problems were younger than those without (difference in means 6.0 years (95% confidence interval 3.0−8.9)). Conclusion: Our findings show that obesity is common in the ambulant population with a lower limb amputation, with a prevalence being higher than in the general Dutch adult population. However, its negative impact on the presence of skin problems and the frequency of prosthetic repairs may be limited.

scholarly journals Physical activity modifies the risk of atrial fibrillation in obese individuals: The HUNT3 study

2018 ◽  
Vol 25 (15) ◽  
pp. 1646-1652 ◽  
Author(s):  
Lars E Garnvik ◽  
Vegard Malmo ◽  
Imre Janszky ◽  
Ulrik Wisløff ◽  
Jan P Loennechen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Atrial Fibrillation ◽  
Body Mass Index ◽  
Confidence Interval ◽  
Body Mass ◽  
High Body Mass Index ◽  
Overweight And Obesity ◽  
Hazard Ratio ◽  
Increased Risk

Background Atrial fibrillation is the most common heart rhythm disorder, and high body mass index is a well-established risk factor for atrial fibrillation. The objective of this study was to examine the associations of physical activity and body mass index and risk of atrial fibrillation, and the modifying role of physical activity on the association between body mass index and atrial fibrillation. Design The design was a prospective cohort study. Methods This study followed 43,602 men and women from the HUNT3 study in 2006–2008 until first atrial fibrillation diagnosis or end of follow-up in 2015. Atrial fibrillation diagnoses were collected from hospital registers and validated by medical doctors. Cox proportional hazard regression analysis was performed to assess the association between physical activity, body mass index and atrial fibrillation. Results During a mean follow-up of 8.1 years (352,770 person-years), 1459 cases of atrial fibrillation were detected (4.1 events per 1000 person-years). Increasing levels of physical activity were associated with gradually lower risk of atrial fibrillation ( p trend 0.069). Overweight and obesity were associated with an 18% (hazard ratio 1.18, 95% confidence interval 1.03–1.35) and 59% (hazard ratio 1.59, 95% confidence interval 1.37–1.84) increased risk of atrial fibrillation, respectively. High levels of physical activity attenuated some of the higher atrial fibrillation risk in obese individuals (hazard ratio 1.53, 95% confidence interval 1.03–2.28 in active and 1.96, 95% confidence interval 1.44–2.67 in inactive) compared to normal weight active individuals. Conclusion Overweight and obesity were associated with increased risk of atrial fibrillation. Physical activity offsets some, but not all, atrial fibrillation risk associated with obesity.

Reliability and Validity of the Ladder Agility Test Among Children

2019 ◽  
Vol 31 (3) ◽  
pp. 370-378 ◽  
Author(s):  
Bouwien Smits-Engelsman ◽  
Wendy Aertssen ◽  
Emmanuel Bonney
Keyword(s):  
Body Mass Index ◽  
Confidence Interval ◽  
Motor Coordination ◽  
Dynamic Balance ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Test Items ◽  
Explosive Power ◽  
Explained Variance ◽  
Test Retest Reliability

Purpose: This study aimed (1) to evaluate the test–retest reliability of a new agility test among children and (2) to determine the physical performance and anthropometric variables that may influence agility performance in this population. Methods: For aim 1, participants (n = 34) completed the Ladder Agility Test (LAT) twice, with a 2-week interval between the first and second test occasions. For aim 2, participants (n = 125) were assessed on the LAT as well as other measures thought to be necessary for agility such as motor coordination, explosive power of the lower extremity, dynamic balance, age, and body mass index. Results: Intraclass correlation coefficient of the LAT total score was .94 (95% confidence interval, .88–.97). Cronbach alpha of .85 was found between the 4 test items. An R2 of .466 was found to represent the explained variance of the LAT total score by the predicting variables. Dynamic balance (2-legged side jumps) (P < .001), motor coordination (P < .01), and age (P < .06) were found to be the major predictors of the LAT total score. Conclusions: This study shows that the LAT is a reliable and valid field-based test that can be used to evaluate agility performance in children. Factors such as dynamic balance, motor coordination, and age may influence agility performance.

Secular Changes in Anaerobic Test Performance in Australasian Children and Adolescents

2006 ◽  
Vol 18 (3) ◽  
pp. 314-328 ◽  
Author(s):  
Grant R. Tomkinson ◽  
Michael J. Hamlin ◽  
Timothy S. Olds
Keyword(s):  
Confidence Interval ◽  
Children And Adolescents ◽  
Test Performance ◽  
Meta Analysis ◽  
Power Test ◽  
Secular Changes ◽  
Fitness Test ◽  
Speed Test ◽  
Anaerobic Test

Secular changes in anaerobic fitness test performance in healthy 6- to 17-year-old Australasians were examined by meta-analysis of 232,564 power- and speed-test performances between 1960 and 2002. Overall, power-test performance improved at a rate of +0.05% [95% confidence interval (CI) = +0.01% to +0.09%] per annum, and speed at +0.04% (CI = +0.02% to +0.06%) per annum. Results indicate that anaerobic-fitness-test performances have remained relatively stable in Australasian children and adolescents in recent decades.

Confidence Intervals for Ages of Marsupials Determined from Body Measurements

1981 ◽  
Vol 8 (2) ◽  
pp. 269 ◽  
Author(s):  
JT Wood ◽  
SM Carpenter ◽  
WE Poole
Keyword(s):  
Confidence Interval ◽  
Confidence Intervals ◽  
Growth Curves ◽  
Head Length ◽  
Body Measurements ◽  
Approximate Confidence Intervals ◽  
Using Data

Fitted growth curves for several individual animals for a measurement such as head length will often differ significantly from each other, even though the curves all have the same general form. For construction of a confidence interval for the age of an animal of unknown age with a particular head length, account should be taken of between-animal variation as well as within-animal variation. This paper gives methods for estimating the components of the variation from observations on animals of known age, and for combining them to give approximate confidence intervals for the age of animals of unknown age. The methods are illustrated using data from grey kangaroos.

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