Search results for "229"

Field location and player roles as constraints on emergent 1-vs-1 interpersonal patterns of play in football

2017

This study examined effects of player roles on interpersonal patterns of coordination that sustain decision-making in 1-vs-1 sub-phases of football in different field locations near the goal (left-, middle- and right zone). Participants were fifteen U-16 yrs players from a local competitive amateur team. To measure interpersonal patterns of coordination in the 1-vs-1 dyads we recorded: (i) the relative distance value between each attacker and defender to the centre of the goal, and (ii), the relative angle between the centre of the goal, each defender and attacker. Results revealed how variations in field locations near the goal (left-, middle- and right-zones) constrained the relative dist…

Validity and Reliability of a Single Question for Leisure-Time Physical Activity Assessment in Middle-Aged Women.

2020

Purpose: To investigate the validity and test–retest reliability of a single seven-level scale physical activity assessment question (SR-PA L7) and its three-level categorization (SR-PA C3). Methods: The associations of SR-PA L7 and C3 with accelerometer-measured leisure-time physical activity (ACC-LTPA) and with the results of four different physical performance tests (6-min walk [n = 733], knee extension [n = 695], vertical jump [n = 731], and grip force [n = 780]) were investigated among women aged 47–55 years participating in the Estrogenic Regulation of Muscle Apoptosis study (n = 795). The reliability was studied using Spearman correlations with 4-month test–retest period (n = 152). R…

Associations of physical activity, sedentary time, and diet quality with biomarkers of inflammation in children

2022

We investigated the associations of physical activity (PA), sedentary time (ST), and diet quality with biomarkers of inflammation in 390 children (192 girls, 198 boys) aged 6–8 years. PA energy expenditure (PAEE), light PA, moderate PA (MPA), vigorous PA (VPA), moderate-to-vigorous PA (MVPA), and ST were assessed by combined movement and heart rate sensor. Finnish Children Healthy Eating Index was calculated using data from 4 d food records. Body fat percentage (BF%) was measured by dual-energy X-ray absorptiometry. High-sensitivity C-reactive protein (Hs-CRP), leptin, interleukin-6 (IL-6), adiponectin, tumour necrosis factor-α, and glycoprotein acetyls were measured from fasting blood samp…

Young athletes’ significant experiences in sport : critical sociological reflections on athlete development

2017

AbstractThe aim of this article is to provide a sociological perspective on athlete development by using the theoretical framework of socialization and life course. Significant experiences are used as an interpretational tool to study young athletes’ perceptions of their socialization process. The research data, which were collected at a sports upper secondary school, consist of life historical interviews with 26 young athletes aged 14–17 years. Through content analysis, their significant experiences in sports were divided into four categories and then analyzed further in relation to the Habermasian dualistic reality of the lifeworld and the system. The results were the following. First, no…

Stereotype threat and lift effects on perceived ability and motor task performance of high school physical education students: the moderating role of…

2016

This study investigated the effects of stereotype threat and lift on perceived ability and motor task performance, and tested the moderating effects of stereotype endorsement and domain identification. One hundred and twenty French high school students were randomly assigned to control, stereotype threat, or stereotype lift conditions, in a 3 (condition) × 2 (sex) study design. The results revealed a stereotype lift effect on boys’ performance moderated by domain identification and a stereotype threat effect on girls’ perceived ability moderated by domain identification and stereotype endorsement. Perceived ability did not mediate the effects of stereotype threat and lift on performance. Th…

Aerodynamics of an isolated ski jumping ski

2019

A single isolated ski was suspended from a six-component wind tunnel balance and three angles, the angle of attack, the yaw angle and the edge angle were adjustable during the test. Increasing yaw angle from 0 to 15° increased the lift coefficient CL from 0.42 to 0.90 at edge angle 0° and from 0.70 to 0.87 at edge angle 10°, respectively. Increasing yaw angle also increased the sensitivity of the ski to changes in edge angle, i.e., increasing the edge angle (20°–45°) decreased the CL and the ratio $$C_{L}^{2}/{C_D}$$ with large yaw angles. However, to maximize the lift-to-drag ratio with a typical angle of attack of 30° in ski jumping, it may be reasonable to have an edge angle of 5°–10° on…

The Earliest Reference to Israel and Its Possible Archaeological and Historical Background

2017

Manfred Görg proposed to read the name Israel on a broken Egyptian inscriptionäm21687, which is now kept in the storage facilities of the New Museum in Berlin. New research during the last number of years has confirmed this reading, although the writing of the name is different from that of the Merenptah inscription. Some characteristics appear to demonstrate that this inscription is older than the Israel stela of Merenptah and may likely date to the 14th or earlier 13th centurybce. The paper will present some ideas about an earlier beginning of the formation of what is generally called Israel and about the way, how this early Israel came about.

Basking in Reflected Glory and Blasting

2007

This study examines, in soccer fanzines, two identity-management strategies—basking in reflected glory (BIRGing) and blasting—of two groups of highly identified soccer fans with allegiance to the same team. Results show strong support for the BIRG phenomenon among both ultra fan groups but little evidence of the blasting phenomenon among either group. The implications of these findings are discussed in regard to social identity management among sports fans.

Morphological and Postural Changes in the Foot during Pregnancy and Puerperium: A Longitudinal Study

2021

The aim of this study is to observe the morphological and postural changes to the foot that take place during pregnancy and the puerperium. Method: In this descriptive, observational, longitudinal study, we analysed 23 pregnant women, with particular attention to morphological and postural aspects of the foot, at three time points during and after pregnancy: in weeks 9–13 of gestation, weeks 32–35 of gestation and weeks 4–6 after delivery. The parameters considered were changes in foot length, the Foot Posture Index (FPI) and the Hernández Corvo Index, which were analysed using a pedigraph and taking into account the Body Mass Index (BMI). The same procedure was conducted in each review. Re…

2019

Introduction: Despite substantial interest in the development of health behaviors, there is limited research that has examined the longitudinal relationship between physical activity (PA) and smoking trajectories from youth to adulthood in a Finnish population. This study aimed to identify trajectories of smoking and PA for males and females, and study the relationship between these trajectories from youth to adulthood. Methods: Latent profile analysis (LPA) was used to identify trajectories of smoking and PA separately for males and females among 3355 Finnish adults (52.1% females). Participants’ smoking and PA were assessed five to eight times over a 31-year period (3–18 years old at the …