1,721,053 research outputs found
Anthropometric and fitness differences between Soccer and Futsal Youth Players
No full textAim: Changes in body size, anthropometric parameters and functional capacities are highly individual during puberty, and the performance of a soccer and futsal players is often closely related to their maturity status (Figueiredo et al. 2009). Wong et al. (2009,
2011), in their studies on world-class soccer players, showed that anthropometric data are likely to be good performance predictors.
Thus, the aim of the study was to evaluate the difference among anthropometrics, pubertal development and explosive power in Italian
young male soccer and futsal players. Methods: Forty-five soccer (age: 15.3 ± 0.5 years) and 61 futsal (age 16.0 ± 0.0 years) Italian youth players were administered anthropometrics (weight, height, body mass index -BMI), Countermovement jump (CMJ), and a Self-Administered Rating Scale for pubertal development (PDS) evaluation. Univariate analysis of variance (ANOVA) was applied to verify statistical differences (p B 0.05) between groups (soccer Vs futsal). Results: Despite both groups were classified in ‘‘Allievi’’ category,
statistical differences emerged in age (F(1,104) = 132.5; p.0001), while no significant difference emerged in BMI, weight, height and
PDS. In addition, CMJ showed statistical differences between groups (F(1,104) = 20.48; p.0001). Conclusion: The findings of this study highlights the fitness difference between sport and can help coaches to plan physical training and assessments according to the requirements of the performance model of sport played
Repeated Sprint Ability in Italian youth soccer players
No full textAim: Considering that the Italian Soccer Federation differ the youth soccer competition in relation to the chronological age (i.e., 8–12 years) by reducing the number of players (range: 5–9), the pitch (range: 45x25–65x70 m), and the match duration (range: 45–60 min,
organized in 3 periods) (F.I.G.C. 2016), the aim of the present study was to investigate the difference in Repeated Sprint Ability (RSA) of
youth Soccer Players. Methods: 45 young male Italian Soccer Players (Age: 11 ± 1 years; High: 145 ± 11 cm, body mass: 38.8 ± 10.2 kg; BMI
18.12 ± 2.5 kg/m2) grouped on age categories (‘‘Pulcini A’’ -9 years- , ‘‘Pulcini B’’ -10 years-, ‘‘Esordienti A’’ -11 years-, ‘‘Esordienti B’’ -
12 years-) were analysed in this study. An analysis of variance (ANOVA) among categories was applied to assess statistical differences
(p.05) in global RSA performance (total time -TT) and the fatigue index percentage (%IF). Bonferroni’s post hoc analysis was
used to identify differences between means. Results: Significant differences were found in TT (F(3,41) = 18.6; p.001) and in %IF (F(3,41) = 4.4; p = 0.009) among categories. In TT no differences emerged within ‘‘Pulcini’’ and ‘‘Esordienti’’ categories (‘‘A’’ Vs ‘‘B’’), while %IF showed significant differences only between ‘‘Pulcini B’’ and ‘‘Esordienti B’’. Conclusions: Considering that RSA is one of the most important
indicators in discriminating elite players from subelite players (Da Silva et al. 2010), different number of trials within the set or different
exercise to rest ratios should be adopted in training sessions to increase the RSA in youth soccer players
RSA, CMJ, Leger, 10m sprint responses to Pre-season training in semi-Professional Soccer Players
Full text linkAim: The aim of this study was to analyze RSA, CMJ, Leger, 10m sprint responses to Pre-season Training in Semi-Professional Soccer Players (SPSP). Considering that numerous studies1,2 highlighted the combination of high levels of physical, technical and tactical skills during a soccer match, the cure of physical training pose a particular attention on training load that generally increases up to 2.4 times during the pre-season period compared with the in-season3.
Methods: Six SPSP (age: 23±7yr; BMI: 23.3±1.8) were requested to perform aerobic training over an 8-week period on alternate days with the functional strength training sessions and sprint training drills as prescribed by the coaches and strength and conditioning staff. Repeated Sprint Ability (RSA, Total Time –TT- and percentage of fatigue index -%FI), Leger, 10m sprint and Counter Mouvement Jump (CMJ) tests, were performed before and after pre-season soccer training. ANOVA for repeated measures was conducted to assess differences (p<0.05) with respect to pre seasonal training. Correlation was calculated between the percentage of variation (Δ) of each test.
Results: Compared to the values recorded before the pre-season, improvement of Leger (3%) and %FI (17.6%) and a deterioration of TT (10%), 10m sprint (0.2%) and CMJ (2.4%) were found. In addition, we have found a main effect between before and after pre-seasonal training in TT (F(1,4)=60.2; p=0.001) and Leger (F(1,5)=25; p<0.005). ΔCMJ showed very large correlation with ΔLeger (r=-0.88) and nearly perfect with Δ%FI (r=0.93); while ΔLeger was largely correlated with Δ%FI (r=-0.69).
Conclusions: Given that the cure of the physical preparation is considered as an important element in order to influence the final soccer game result, this study want to be useful information for the coach in order to maximize the best physical condition of the whole team relative to the beginning of the regular season
Relationship among explosive power, body fat, fat free mass and pubertal development in youth soccer players: a preliminary study
No full textPurpose: Changes in body size and functional capacities are highly individual during puberty, and the performance of a soccer player is often closely related to their maturity status. The aim of the study was to evaluate the relationships among explosive power, body fat, fat free mass and pubertal development in young soccer players. Methods: Explosive power (countermovement jump-CMJ), body mass index (BMI), percentage of body fat (¿), fat free mass (FFM) and a Self-Administered Rating Scale for pubertal development (PDS) values of 11 "Giovanissimi" (age 13 year), 13 "Allievi" (age 15 year) and 10 "Juniores" (age >17 year) male soccer players were compared. The statistical analysis was performed using an analysis of variance among categories with Fisher's post hoc as appropriate. Furthermore, Pearson correlations among variables were calculated considering all subjects and also within categories. Results: Statistical differences emerged among categories in CMJ (F (2,30) = 28.3, p < 0.01), body fat weight (F (2,31) = 29.2, p < 0.01) and PDS (F (2,29) = 18.5, p < 0.01), while ¿ values showed statistical differences only for "Giovanissimi" and "Juniores" (F (2,31) = 3.4, p = 0.01). CMJ showed significant correlations with FFM (r = 0.68) and PDS (r = 0.63), PDS with FFM (r = 0.66) and BMI with ¿ (r = 0.71) and FFM (r = 0.71). A high correlation was found within categories. Conclusion: Since we found differences between categories and no correlation between chronological age and pubertal status, this study highlights the importance of assessing of puberty in youth soccer team
Relationship among performance value, body fat, fat free mass and pubertal development in youth soccer players
No full textDescriptive Kinematic Analysis of the Potentially Tragic Accident at the 2020 Austrian MotoGP Grand Prix Using Low-Cost Instruments: A Brief Report
Full text linkDuring the first Austrian MotoGP Grand Prix of 2020, following a serious accident involving the riders J. Zarco and F. Morbidelli, Morbidelli's riderless bike cartwheeled across turn 3, narrowly missing V. Rossi and M. Viñales by just a few centimeters. As is the case with ordinary traffic accidents, analyzing the dynamics of motorcycle racing accidents can help improve safety; however, to date, the literature lacks studies that analyze the causes and severity of such accidents. Hence, the purpose of this study was to analyze the main causes that led to the accident at the 2020 Austrian MotoGp Grand Prix, to quantify the speeds and distances of the bikes and riders involved, and to hypothesize several alternative scenarios using a low-cost method
Prevalence of ultrasound signs of Achilles tendinopathy in asymptomatic youth soccer players
No full textReaction Time to Visual Stimulus in Firefighters and Healthy Trained Subjects: A Preliminary Comparative Study
Full text linkBackground: In order to stay safe, and to successfully complete their work, firefighters have to constantly assess and process large numbers of sensory stimuli and adapt to the inherent risks present in the working environment. Objective: The purposes of the present preliminary study were to analyse the speed of Reaction Time responses (RT) of Italian Firefighters and to compare their cognitive responses with non-firefighting subjects. Methods: Anthropometric (weight, height and BMI) and RT (time-to-completion -TTC-, mean of reaction time -MRT-, and errors made -E-) evaluations were administered at 16 volunteers (Age: 40.3 ± 6.7 yrs; BMI: 23.8 ± 2.3 kg/m 2 ) divided in Firefighters (FG) and Control (CG) groups. RT test consisted of 3 trials (T1 = 1s of stimulus duration and 1s interval between stimulus and the other; T2 = 0.5s of stimulus duration and 1s interval between stimulus and the other; T3 = 0.5s of stimulus duration and 0.5s interval between stimulus and the other). Mann Whitney U test between groups was applied to asses differences (p = 0.05) in TTC, MRT, and E while Friedmann test and Dunn-Sidak post hoc were used to evaluate significant differences in the 3 trials in each variable of each group. Results: No significant differences based on anthropometric parameters were observed between groups. Despite no significant differences emerged for TTC and MRT between groups, we observed significant differences in E between groups (CG = 4; FG =12) and in the 3rd condition in each variable of each group. Conclusion: Workout programs that integrate reaction time training with job performance should be created to increase job performance
Do Italian Fire- Fighting Recruits Have an Adequate Physical Fitness Profile for Fire Fighting?
No full textAbstract The aim of this study was to evaluate the fitness level of Italian male recruits with (volunteers) and without (novices) previous fire-fighting experience. Strength (handgrip; 1RM bench-press), power (counter movement jump (CMJ)), velocity (20 m) and endurance (with and without self-contained breathing apparatus (SCBA)) performances of 29 volunteer (age: 22±3 years; BMI: 23±2) and 51 novice (age 30±5 years; BMI 25±2) fire-fighting recruits were compared (p<0.05). Volunteers showed better performances (p<0.01) for 1RM (80.5±16.5 kg), CMJ (31.4±4.8 cm) and 20 m (3.1±0.2 s) than novices (1RM=68.3±10.5 kg; CMJ=28.0±4.5 cm; 20 m=3.2±0.2 s). No difference emerged for handgrip (481.7±71.4 N) and VO2max with (42.9±5.2 ml/kg/min) and without (54.7±6.2 ml/kg/min) SCBA. Wearing the SCBA, 3% of volunteers and 16% of novices failed to complete the endurance test. Considering that fire fighters perform their job wearing SCBA, it could be advisable to test the fitness level of recruits in this condition
Effects of a Tennis Match on Perceived Fatigue, Jump and Sprint Performances on Recreational Players
Full text linkBackground: Tennis is an intermittent sport, characterized by hundreds of repetitive explosive efforts, including accelerations, and jumps. A single match can last up to 5 hours and players are called to play several matches often separated by less than 48h of recovery. Objective: The study aimed to investigate the effects of a standardized tennis match on perceived fatigue and jump and sprint performances on a group of recreational tennis players and to observe if such variables were affected by residual effects of fatigue 24 hours after the match. Methods: Twelve recreational tennis players performed a 120 min match. Before, immediately after and 24h after the match, players completed a set of three countermovement jumps, three 10m sprints, and reported their perception of general fatigue. Results: Significant differences between the three conditions have been found for the perceived fatigue: indeed fatigue was higher both in the immediate post (F(1,10)= 54.422, η2 = 0.845, p<0.001) and 24h post-match (F(1,10)= 10.947, η2 = 0.523, p=0.08), with respect to the pre-match condition. No significant differences were detected in the other variables. Conclusion: During a tournament, the performance of tennis players may be weakened and the recovery prejudiced. To identify fluctuations of and factors linked to fatigue may help tennis practitioners to apply adequate recovery strategies with athletes, limiting performance decrements within a tournament, and indirectly preventing injuries
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