This study aimed to investigate the accuracy and reliability of Polar Team Pro GPS units (10 Hz) when used measure distance total covered in different speed zones. Eight amateur soccer players (age: 21.37 ± 1.40 years, height: 176.75 5 cm, body mass: 9.47 kg) completed a team sport simulation cycle. Two were positioned on each player’s chest, one GPSports unit (15 was between scapulae. The data obtained from two compared determine inter-unit reliability. (reference standard) concurrent...

This study aimed to analyse the impact of an 8-week core strength training (CST) programme in youth karate practitioners on endurance, agility, flexibility, sprinting, jumping, and kick performance. followed a randomized parallel design. Twenty-nine participants (age: 12.86 ± 0.81 years old; height: 152.55 10.37 cm; weight: 42.93 8.85 kg) were allocated CST (n = 16) performed thrice weekly or control group 13) only performing sport-specific (karate) training. Participants assessed three...

Bu araştırmanın amacı 1 jokerli ve 2 küçük alan oyunlarının jokersiz oyunlara göre ivmelenme, yavaşlama, farklı hız aralıklarında yapılan koşu mesafeleri, maksimal kalp atım hızının %80-90-100’ünde geçirilen toplam süre üzerine etkisini incelemekti. Araştırma 4 hafta ile haftada gün olacak şekilde tasarlandı. Familirizasyon oturumu sonrasında, 24x36 m saha ölçülerinde dakika rastgele bir seçimle 1’er set 4’e 4, 4+1 4+2 formatlarını içeren oyunları oynatıldı. Anlamlılık alfa düzeyi olarak...

This study aims to provide guidance for evidence-based training optimization by examining differences in position-specific internal and external loads of elite youth soccer players. A total 27 players from a U17 team competing the Elite Academy League participated study, comprising four fullbacks, forwards, eight wingers, seven midfielders, center-backs. The mean age was 17 years, height 179.19 ± 6.05 cm, body weight 71.62 6.38 kg. Data were collected during competition period. Internal load...

The purpose of this study was twofold: (i) to analyze the seasonal variations in physical demands Turkish Super League teams considering their status final rankings and (ii) technical performance rankings. This followed an observational analytic retrospective design. In last three seasons (2015-2016, 2016-2017 2017-2018), 918 football matches, 54 teams, 25,029 observations were made. Sentio Sports optical tracking system used quantify execution players all matches. No significant differences...

The relationship between the external load lifted and movement velocity can be modeled by a simple linear regression, variables derived from load-velocity (L-V) were recently used to estimate maximal neuromuscular capacities during 2 variants of back-squat exercise.The L-V will highly reliable associated with traditional tests commonly evaluate force power.Twenty-four male wrestlers performed 5 testing sessions (a 1-repetition maximum [1RM] session, 4 experimental [2 concentric-only...

The aim of this study is to examine how physical performance has changed after 15 weeks (109 days) long-term absence organized training in youth soccer players imposed by the stay at home orders. A total sixty-eight young male from different age categories (U15, U16, U17 and U19) voluntarily participated prospective cohort study. Body fat percentage (BF%), counter-movement jump (CMJ), 30 m sprint, change-of-direction (COD) yo-yo intermittent recovery test level-1 (YYIRTL-1) were evaluated...

The present study had two main objectives: (i) to assess the concurrent validity and agreement of real-time measurement counter-movement jump (CMJ) height using My Jump Lab (MJL) mobile application in comparison a force plate (ii) evaluate intra-session reliability MJL application. This cross-sectional investigation involved 36 recreationally active, healthy men (mean age = 22.2 ± 2.9 years) who performed five CMJ repetitions on with 2-min rest period. Their heights were concurrently...

The purpose of this study was two-fold: (i) analyze the variations locomotor profile, sprinting, change-of-direction (COD) and jumping performances between different youth age-groups; (ii) test interaction effect athletic performance with playing positions. A cross-sectional design followed. total 124 soccer players from five age-groups were analyzed once in a time. Players classified based on their typical position. following measures obtained: body composition (fat mass); jump height...

This study aimed at examining the concurrent validity and reliability of multi-point method two-point method’s variations for estimating one-repetition maximum (1RM) in deadlift squat exercises to determine accuracy which optimal two loads can be used protocol. Thirteen resistance-trained men performed six sessions that consisted incremental loading tests (multi-point method: 20–40–60–80–90% variations: 40–60%, 40–80%, 40–90%,60–80%, 60–90%) followed by 1RM tests. Both load showed reliable...

The aims of the study were to (i) assess Relative Age Effect (RAE) on elite young male basketball players, (ii) analyze whether there is a difference between birth quarters (BQ) according their minutes played and efficiency ratings as individual performance parameters and, (iii) relationship team efficiency, success, RAE with new approach. research was conducted 678 players (Age:15.84 ± 0.42) from 53 teams in six different tournaments (from 2014 2019). Although, chi-square test showed that...

This study explored the goodness-of-fit and effect of fatigue on precision both generalized individualized relationships between velocity loss (%VL) magnitude percentage completed repetitions with respect to maximal that can be performed failure (%Rep) in Smith machine parallel back-squat exercise. Twenty-nine resistance-trained males four sets failure, a rest period 2 min, against 75% one-repetition maximum. Generalized %Rep-%VL equations determined first set were used estimate %Rep when...

In contemporary research literature, inconsistencies regarding the validity and reliability of different brands global positioning systems (GPSs) have been reported GPS units on athletes. For this reason, present work investigates measurements placed at locations. Thirty-two amateur soccer players (age: 21.18 ± 3.16 years; height: 175 8.03 cm; body mass: 74.21 4.85 kg) voluntarily participated in current study. Participants were asked to complete a team sport simulation cycle (TSSC). During...

This study aimed to determine the relationships of locomotor profile (combination a player's maximal oxygen uptake and running economy)-measured by final velocity attained at 30-15 Intermittent Fitness Test (VIFT) anaerobic speed reserve (ASR)-with body composition, countermovement jump (CMJ), sprinting performances, change-of-direction (COD) ability youth soccer players. A cross-sectional design was implemented. total 124 players from different age groups (15, 16, 17, 18, 19 years old) were...

Purpose. The study aim was 2-fold: (i) characterize and compare the locomotor demands of 30-15 Intermittent Fitness Test (30-15IFT), Yo-Yo Recovery level 1 (YYIRT), VAMEVAL test; (ii) these progressive multistage tests with those training sessions matches in youth soccer players. Methods. A descriptive case lasting 3 weeks performed to implement once monitor matches. Overall, 12 players (age: 18.21 ± 0.34 years) from same team participated after consideration inclusion criteria. Global...

The aim of this study was twofold: it (i) analyzed the weekly variations sleep quality and training intensity youth soccer players (ii) relationships between intensity. This followed an observational design. Twenty men (age: 18.81 ± 0.41 years) were monitored daily over two weeks for Sleep measured using 15-item consensus diary. CR-10 Borg’s scale as a measure rate perceived exertion (RPE); heart (HR) sensor used to minimum, average peak; global positioning system (GPS) measuring total...

Abstract Purpose Visual feedback and music while warm up may help elicit peak performance, but its effect during the Wingate anaerobic test (WAnT) in futsal players is unexplored. Therefore, aim of this study was to examine effects visual stimulus on WAnT performance players. Methods The included 17 young male (age, 21.53 ± 1.32 years; height, 177.59 5.75 cm; 73.71 9.31 kg; BMI 23.342 .47). administered using three distinct protocols: with (M), without (NM), (MV) following a 10-min warm-up...

The purpose of the study was: (i) to analyze relationships physiological and locomotor demands between small-sided games (3v3 5v5) official matches (11v11); (ii) physical fitness youth soccer players.

This study aimed to assess the test-retest reliability of untested single- and dual-beam timing gates compare them with previously validated video-based applications measure linear change direction sprint (CODS) times. Twenty-three participants were concurrently assessed for 30 m CODS time using MySprint COD Timer applications. Interclass correlation coefficient (ICC), Pearson correlation, independent t-test Bland-Altman plots used comparison between instruments. ICC, Cronbach’s alpha...