Soccer is an attractive and popular team sport that has high physiological fitness stress, therefore requires special controlled training programs during the season. The aim of this study was to describe weekly average changes in monotony (TM) strain (TS) throughout different periods season professional football players based on number accelerations decelerations, also analyze difference betwee...

The paper is aimed to determine whether there a loss of performance by comparing the competition values Super League team before and after COVID-19 epidemic. In order reduce losses athletes due lack training, 60-75 minutes self-weight training was applied during quarantine period. Paired t test used for statistical analysis. A statistically significant difference found in Total Distance, High I...

Background. The study aims to determine position-specific loads by different tactical strategies. Eighty Turkish Super League U21 players (19.35 ± 1.6 years, 179.4 ± 2.3 cm, 75.6 ± 4.1 kg; M ± SD) were involved in this study. Objectives. The players completed eight different 11v11 training games. While one team practiced the ball possession and “defense as a team” strategy, the other team impl...

BACKGROUND Very little is known about the injury characteristics of beach volleyball. PURPOSE To describe the incidence and pattern of injuries among professional male and female beach volleyball players. STUDY DESIGN Cohort study--retrospective injury recall and prospective registration. METHODS Injuries occurring over a 7.5-week interval of the summer season were retrospectively registe...

This article presents a novel model for evaluating the performance of field players in football. Based upon Data Envelopment Analysis (DEA), we employ a nonconcave metafrontier approach that permits estimation of players’ efficiency scores under consideration of their playing positions. The model is applied to a data set of Germany’s premier league football players covering the playing seasons ...

BACKGROUND Little is known about the rate and pattern of injuries in international volleyball competition. OBJECTIVE To describe the risk and pattern of injuries among world-class players based on data from the The International Volleyball Federation (FIVB) Injury Surveillance System (ISS) (junior and senior, male and female). METHODS The FIVB ISS is based on prospective registration of inj...

Purpose. The aim of the study was to follow the changes of maximal power output and power–velocity relationship in male volleyball players during an annual training cycle. Basic procedures. The study was conducted on six first-league volleyball players: age 25.0 ± 5.3 years, body height 195.2 ± 7.2 cm and body mass 91.2 ± 14.7 kg. Force–velocity and power–velocity relations were determined from...

This study investigated the acute changes in body composition that occur over the course of a competitive season in elite rugby league players. Twenty elite senior players from an English Super League rugby league team underwent a total-body dual-energy X-ray absorptiometry scan at 3 phases of a competitive season: preseason (February), midseason (June), and postseason (September). Body mass (B...

Anthropometric measurements were collected from a group of Australian Rules footballers at the start and end of the competitive season. Eighty-nine players were studied, drawn from a top level professional league team, a second level association team and an A-grade amateur association team. Changes in the physical profile of these players during the season were observed. A small but significant...

Background. Attention to the loyalty of fans to the long-term success of sports organizations has become increasingly important. On this note, it seems necessary to pay attention to the variables that predict and influence the loyalty of spectators. Objectives. The aim of this study was to determine the mediating role of satisfaction in the effect of team reputation and team quality on the loy...