Abstract There is a need for collective variable that captures the dynamics of team sports like soccer at match level. The centroid positions and surface areas two teams potentially describe coordinated flow attacking defending in small‐sided games aim present study was to identify an overall game pattern by establishing whether proposed variables were linearly related between over course game. In addition, we tried patterns build‐up goals. A positive linear relation negative hypothesized...

Objective Elite youth soccer players have a relatively high risk for injuries and illnesses due to increased physical psychosocial stress. The aim of this study is investigate how measures monitor stress recovery, its analysis, provide useful information the prevention in elite players. Methods 53 between 15 18 years age participated study. To determine stress, registered training match duration session rating perceived exertion two competitive seasons by means daily logs. Dutch version...

Objective In this study, the incidence and sex-specific predictors of running-related injury (RRI) among a group recreational runners training for 4-mile running event were determined identified, respectively. Design Prospective cohort study. Methods Several potential risk factors prospectively measured in 629 novice runners. They observed during an 8-week period any musculoskeletal injuries lower limbs back. A was defined as pain limb or back causing restriction at least 1 day. Results At...

Abstract Small‐sided games are commonly used in training and teaching contexts of football. However, few studies have focused on the tactical implications this type drills. The aim study is to identify how collective behaviour varies with age different small‐sided game formats. We investigated in‐game field position three groups youth football players [under‐9 ( n =10; = 8.5±0.53), under‐11 10.4±0.52) under‐13 12.7±0.48)], participating two conditions (GK + 3×3 GK 4×4 GK). A team variable...

To determine the relationship between multidimensional performance characteristics and level of in talented youth field hockey players, elite players (n = 38, mean age 13.2 years, s 1.26) were compared with sub-elite 88, 14.2 on anthropometric, physiological, technical, tactical psychological characteristics. Multivariate analyses gender as factors, covariate, showed that scored better than technical (dribble a peak repeated shuttle run), (general tactics; tactics for possession...

Background The popularity of running is still growing. As participation increases, running-related injuries also increase. Until now, little known about the predictors for in novice runners. Hypothesis Predictors (RRIs) will differ between male and female Study Design Cohort study; Level evidence, 2. Methods Participants were 532 runners (226 men, 306 women) preparing a recreational 4-mile (6.7-km) event. After completing baseline questionnaire undergoing an orthopaedic examination, they...

To identify performance characteristics that could help predict future elite field hockey players, we measured the anthropometric, physiological, technical, tactical, and psychological of 30 35 sub-elite youth players at end three consecutive seasons. The mean age first season was 14.2 years (s = 1.1). Repeated-measures analyses covariance, with standard measurement occasion as factors a covariate, showed fared better than on technical tactical variables. Female also scored interval...

Background Although running has positive effects on health and fitness, the incidence of a running-related injury (RRI) is high. Research prevention RRI scarce; to date, no studies have involved novice runners. Hypothesis A graded training program for runners will lead decrease in absolute number RRIs compared with standard program. Study Design Randomized controlled trial; Level evidence, 1. Methods GRONORUN (Groningen Novice Running) 2-armed randomized trial comparing 8-week (control...

The soccer "penalty shootout" in the knock-out phase of major international tournaments is one most dramatic events soccer. outcome these kicks typically attributed to factors such as psychology (e.g. coping with stress), skill kicking technique), physiology overcoming fatigue 120 min play), and chance what direction goalkeeper moves). purpose this study was use internet game record data estimate relative importance performance components for penalty matches. Data were collected from...

Brink, MS, Nederhof, E, Visscher, C, Schmikli, SL, and Lemmink, KAPM. Monitoring load, recovery, performance in young elite soccer players. J Strength Cond Res 24(3): 597-603, 2010-The purpose of this study was to investigate the relation between training monthly field test players develop guidelines enhance performance. In a prospective, nonexperimental cohort design, 18 registered match duration for full competitive season by means daily logs. Furthermore, session rating perceived exertion...

The purpose of the current prospective study was to assess changes over time in patients tested at 6 months and 9 after anterior cruciate ligament reconstruction (ACLR) with a return sport (RTS) test battery. It hypothesized that more passed RTS criteria compared months.Sixty-two ACLR performed battery an average 6.5 ± 0.7 9.5 0.9 ACLR. All underwent standardized rehabilitation protocol. consisted following tests: jump-landing task assessed Landing Error Scoring System (LESS), three...

Abstract The present study examined whether performance characteristics discriminated between selected and deselected players in talent development programmes. This examination was carried out talented soccer players, aged 16–18 years using objective measurement instruments. Four domains of multidimensional (physiological, technical, tactical psychological) were assessed by a test battery consisting soccer‐specific field tests questionnaires. Multivariate analyses covariance revealed that...

Small-sided games (SSGs) are used in training sessions to prepare for full-sized matches. For the same number of players, smaller pitch sizes result decreased physical performance and shorter interpersonal distances. A relative area derived from match results larger this may increase fit between SSGs This study aimed investigate with a traditional small match-derived youth elite soccer players. Four age categories (under-13, under-15, under-17 under-19) played 4 vs. plus goalkeepers on...

The aim of this study was to prospectively monitor sport‐specific performance and assess the stress–recovery balance in overreached (OR) soccer players controls. During two competitive seasons, 94 participated study. (RESTQ‐Sport) (Interval Shuttle Run Test) were assessed monthly. Seven with decrement at least a month classified as OR. Stress recovery measures between groups (OR vs healthy players) different times within OR group. An unfavorable total score appeared 2 months before diagnosis...

The aim of the current study was to investigate and compare coaches' players' perceptions training dose for a full competitive season.Session rating perceived exertion (RPE), duration, load (session RPE × duration) 33 professional soccer players (height 178.2 ± 6.6 cm, weight 70.5 6.4 kg, percentage body fat 12.2 1.6) from an under-19 under-17 (U17) squad were compared with planned periodization their coaches. Before training, coaches filled in session intended (RIE) duration (min) each...

The aim of this study was to compare footballers' movement behaviour during 2-, 3-, 4- and 5-a-side small-sided games. Ten young professional players (age = 18.0 ± 0.67 years) participated in 3 bouts each games for 6 min with 1 active rest between bouts. Positional data were collected using GPS system units used calculate the following variables: team centroid, distance player own opponent centroids centroids. Approximate entropy identify time series regularity variable. centroid increased...

A limited number of patients return to sport (RTS) after an anterior cruciate ligament reconstruction (ACLR) and who RTS have a relatively high risk for second ACL injury. The purpose the current study was compare results test battery between returned pre-injury level (RTS group) did not (NO-RTS group). It hypothesized that group showed better results.Sixty-four (age 27.8 ± 8.8 years) were included. multicomponent (jump-landing task assessed with Landing Error Scoring System (LESS), three...