A v-player whist tournament Wh(v) is a schedule of games, each involving two players opposing two others. Every round, the players are partitioned into games, with at most one player left over. Each player partners every other player exactly once and opposes every other player exactly twice during the tournament. Directed whist tournaments DWh(v), and triplewhist tournaments TWh(v), are Wh(v) w...

This study aimed to compare the tactical behaviours performed by youth soccer players from four different age groups, using the “GK3-3GK test”. For such a purpose, 52 players (16 Under-11s, 12 Under-13s, 12 Under-15s and 12 Under-19s) from four Portuguese teams have been analyzed. These players performed 2853 tactical actions. It was carried out descriptive analysis, Kolmogorov-Smirnov, Chi-squ...

the aim of this study was to design a program to educate emotion management and to evaluate its effectiveness on controlling anger and mental health in soccer players. the method of this study was quasi-experimental, pretest-posttest with control group. the population consisted of all players of soccer teams in adult premier league in 2014. 40 players of soccer teams in premier league were sele...

BACKGROUND The purpose of this study was to assess major and minor league baseball players' return to professional baseball at a preinjury level or higher after surgery of the shoulder or elbow. HYPOTHESIS The majority of athletes will be able to return to their preinjury level after surgery. STUDY DESIGN Case series. METHODS Over a 4-season period, prospective injury and surgery records ...

OBJECTIVE To profile training habits and injuries in football players participating in a national Masters tournament. METHODS A cross-sectional retrospective study design was used to survey male football players attending the 2008 New Zealand Masters Games. Information regarding player demographics, football injuries, football related training, and risk factors for injury were collected. RE...

The purpose of the study was to compare the anthropometric, functional and sport-specific skill characteristics and goal orientations of male youth soccer players at the extremes of height and skeletal maturity in two competitive age groups, 11-12 and 13-14 years. The shortest and tallest players, and least and most skeletally mature players (n = 8 per group) within each age group were compared...

the aim of this study was to determine the effects of sodium bicarbonate supplementation on blood lactate level and anaerobic power of futsal players. 24 futsal players (mean age of 15.88±1.59 years, weight 62.02±12.76 kg, height 173.21±8.23 cm, bmi 20.51±3.33 kg/m2) were selected and randomly divided into two groups (experimental, n=12) and (control, n=12). the protocol consisted of a five-min...

The effect of intellectual impairment on sports performance has received limited attention by researchers. As a contribution to closing this gap, the purpose of the present investigation was to examine the differences in tactical proficiency between table tennis players with and without intellectual disabilities (ID). These groups were matched for training-volume and experience and consisted of...

the aim of this study was to assess the effect of four weeks of high intensity aerobic interval football training on aerobic performance indices in soccer players. 18 soccer players in iran azadegan league (age 21.88+2.24 yr, height 174.22+5.33 cm, weight 67.7+5.7 kg, body fat percent 12.38+3.29) volunteered to participate in this study and divided into two groups (training, 12 players; control...