Assessment of sport performance is based on mechanical analysis of a movement. In high jump there are two main sequences: a run-up and a jump. The efficiency of a high jump can be described taking into account location of a centre of mass of a jumper while acquiring a standing up-right position and then at the highest position over a bar during a jump. The difference of those locations is taken...

The purpose of this study was to analyse the interaction between somatotype, body fat and physical activity in prepubescent children. This was a cross-sectional study design involving 312 children (160 girls, 152 boys) aged between 10 and 11.5 years old (10.8 ± 0.4 years old). Evaluation of body composition was done determining body mass index and body fat by means of skin-fold measurements, us...

Humans can perceive affordances both for themselves and for others, and affordance perception is a function of perceptual-motor experience involved in playing a sport. Two experiments investigated the enhanced affordance perception of athletes. In Experiment 1, basketball players and nonbasketball players provided perceptual reports for sports-relevant (maximum standing-reach and reach-with-jum...

The long-standing intrabronchial foreign body presents problems of diagnosis and treatment which are very different from those associated with the recently inhaled foreign body. There may be no history to suggest the original incident; the clinical picture is usually clouded by superadded pathological changes-atelectasis, pneumonitis, bronchiectasis, or lung abscess-and the bronchoscopic appear...

[Purpose] The purpose of this study was to clarify the relationships between 30-m sprint and standing broad jump physical function junior high school baseball players. [Participants Methods] Twenty-six players participated. sprint, jump, deep squat test (DST), split legs, straight leg raise (SLR), grip strength, trunk (Sahrmann core stability test: SCST) were measured, SLR, DST, SCST graded. Sp...

The purpose of the present study was to analyze secular trends in anthropometric characteristics and health-related physical fitness (i.e., flexibility, muscular strength speed/agility) Macedonian children between 2012 2019.
 Materials methods. We analyzed 2019. Two representative population studies were conducted 7 years apart (6-10 years) from Skopje (Mаcedonia). Both used same measures ...

We run a large field experiment with an online company specializing in selling used automobiles via ascending auctions. We manipulate experimentally the maximum amount which bidders can bid above the current standing price, thus affecting the ease with which bidders can engage in jump bidding. We test between the intimidation vs. costly bidding hypotheses of jump bidding by looking at the effec...

Study purpose. This study purpose was to investigate whether health-related physical fitness is associated with total and central body fat in school children aged 6–10 years.
 Materials methods. A of 2197 Macedonian years (1096 boys 1101 girls) participated the study. Health-related measured by modified EUROFIT test battery: 20 m shuttle run (cardiorespiratory fitness); handgrip strength t...

A study was conducted on 294 north Indian boys of 9-16 years of age. The boys were studying in a sports school and were doing systematic sports training twice a day. The following tests were conducted on the subjects: Standing broad jump, standing shot put (4 kg), 40 m sprint, zig-zag run, forward bend and reach and endurance run. The results indicated that the spurt in height, weight and motor...

In this study, it was aimed to investigate the anaerobic power, static balance, and speed performances of 10-12 years old children doing or not sports. our 20 girls between ages 10 12 sports, sports who both live in city center Batman voluntarily participated. The analysis whether data showed normal distribution tested with Shapiro-Wilk test, t-test used make comparisons independent groups. At ...