Search results for "interval"

Multiple pregnancies and environmental exposure: An impact of air pollution on fetal growth?

2018

Introduction Multiple pregnancies display all the complications of singletons, but in highest frequencies, especially for fetal growth abnormalities. In singletons, air pollution seems to be negatively associated with fetal growth. A similar relationship in multiple pregnancies can be expected. However, multiple pregnancies are systematically excluded from the studies of the impact of air pollution on pregnancy outcomes. This study aims to analyze in a population of multiple pregnancies the relationship between fetal growth restriction (FGR), small for gestational age (SGA) and environmental chronic exposure to air pollution in moderately polluted cities. Methods All the multiple pregnancie…

Extremely low-frequency magnetic fields and survival from childhood acute lymphoblastic leukemia: an international follow-up study

2012

A previous US study reported poorer survival in children with acute lymphoblastic leukemia (ALL) exposed to extremely low-frequency magnetic fields (ELF–MF) above 0.3 μT, but based on small numbers. Data from 3073 cases of childhood ALL were pooled from prospective studies conducted in Canada, Denmark, Germany, Japan, UK and US to determine death or relapse up to 10 years from diagnosis. Adjusting for known prognostic factors, we calculated hazard ratios (HRs) and 95% confidence intervals (CI) for overall survival and event-free survival for ELF–MF exposure categories and by 0.1 μT increases. The HRs by 0.1 μT increases were 1.00 (CI, 0.93–1.07) for event-free survival analysis and 1.04 (CI…

Systematic review: the presenting international normalised ratio (INR) as a predictor of outcome in patients with upper nonvariceal gastrointestinal …

2011

Aliment Pharmacol Ther 2011; 33: 1010–1018 Summary Background  The prognostic value of an elevated international normalised ratio (INR) as part of initial risk stratification in nonvariceal upper gastrointestinal bleeding (NVUGIB) remains poorly characterised. Aim  To assess the usefulness of the initial INR in patients with NVUGIB. Method  After a systematic review, we included the presenting INR and other validated prognosticators in multivariable models predicting rebleeding and mortality. Data are reported as odd ratios and 95% confidence intervals. Results  Only two of 769 candidate studies were useful, but reported disparate, highly selected NVUGIB patients with varying threshold init…

Fixed versus Growth Mindset Does not Seem to Matter Much

2018

Psychology predicts that a student’s mindset—their implicit theory of intelligence—has an effect on their academic performance. We attempted to corroborate this in the computer science education context by asking the students on two bachelor-level courses, typically taken in the third year of studies, to fill out a standard mindset questionnaire, and analyzing their answers in relation to their grades on those courses. In a sample of 133 students, with only 24 (18 %) students with a clear fixed mindset, there is no detectable correlation between the students’ mindsets and their course grades. An ordinal logistic regression estimates, at the 95 % confidence level, a statistically nonsignific…

Development of an individualized familiarization method for vertical jumps

2013

OBJETIVO: Propor um método de familiarização individualizado para saltos verticais e verificar o seu efeito na variabilidade intrassujeito. MÉTODOS: Cinquenta e três homes (média ± DP; idade 23,5 ± 3,3 anos; estatura 1,76 ± 0,08 m; massa 72,8 ± 8,6 kg; percentual de gordura 12,9 ± 5,2%) realizaram sucessivos saltos até atingir o nível de estabilidade proposto. Após 48 h este processo era repetido e a estabilidade entre dias era verificada, se necessário, mais sessões eram realizadas. O nível de estabilidade foi determinado por um teste z, com intervalo de confiança de 95%. Após o processo de familiarização, duas sessões experimentais adicionais foram realizadas para determinar a confiabilid…

Neighborhood Mobility and Unmet Physical Activity Need in Old Age: A 2-Year Follow-Up

2020

Background: Many older people report a willingness to increase outdoor physical activity (PA), but no opportunities for it, a situation termed as unmet PA need. The authors studied whether lower neighborhood mobility and PA precede the development of unmet PA need. Methods: Community-dwelling 75- to 90-year-old people (n = 700) were interviewed annually for 2 years. Unmet PA need, neighborhood mobility, and PA were self-reported. In addition, accelerometer-based step counts were assessed among a subgroup (n = 156). Results: Logistic regression analyses revealed that lower baseline neighborhood mobility (odds ratio 3.02, 95% confidence interval [1.86, 4.90] vs. daily) and PA (odds ratio 4.37…

Comparison of the effects of high-intensity interval running, high-intensity interval circuit training and steady-state running on body composition a…

2015

Introduction. The measurement of body composition is important for several reasons, but nowadays when obesity and overweight are common problems all over the world even more attention should be given to body composition. Excess amount of fat is itself a risk for health, but it also predisposes to many diseases, one of which is diabetes. It has been shown that with regular physical activity and exercise the body composition and body’s glucose regulation can be improved. In common activity guidelines the amount of traditional endurance and resistance training takes hours per week to perform to fill the recommendations. However, since it has been shown that one of the most common reasons for n…

Angiopoietin-2 plasma dosage predicts time to first treatment and overall survival in chronic lymphocytic leukemia.

2010

Abstract The clinical relevance of angiopoietin-2 (Ang2) in chronic lymphocytic leukemia (CLL) was previously suggested by the association between high Ang2, and shorter progression-free survival reported in small series of patients. Here, we evaluated Ang2 glycoprotein levels in plasma samples collected from a multicentric cohort of CLL patients (n = 316) using an enzyme-linked immunosorbent assay method, and we investigated its prognostic role in relation to time to first treatment (TTFT) and overall survival. Based on a cutoff equal to 2459 pg/mL, we divided our cohort in 2 subsets (high and low Ang2) composing 100 (31.6%) and 216 (68.4%) patients, respectively. High Ang2 was predictive …

Liikunta parantaa luonnollisten tappajasolujen toimintaa

2022

Korkean intensiteetin intervalliharjoittelun akuuttivaikutukset toiminnanohjauksen komponentteihin

2018

Tämän tutkimuksen tarkoituksena oli selvittää, onko yhdellä 16 minuutin kestoisella korkean intensiteetin intervalliharjoittelukerralla akuutteja vaikutuksia nuorten perusterveiden tutkittavien toiminnanohjauksen komponenttien nopeuteen ja tarkkuuteen. Tutkimus on toteutettu osana laajempaa NEEDS (Neural Effects of Exercise, Diet and Sleep) tutkimusaineistoa yhteistyössä Jyväskylän yliopiston monitieteisen aivotutkimuskeskuksen, psykologian laitoksen, liikuntabiologian tieteenalan sekä Itä-Suomen yliopiston biolääketieteen yksikön kanssa. Yhteensä tutkimukseen osallistui 54 nuorta, joista tyttöjä 34 ja poikia 20. Osallistujat olivat iältään 16-19 vuotiaita ja heidät rekrytoitiin tutkimuksee…