Young Female Players Research Articles

Joint position and force senses in young female tennis players and untrained adolescents.

The aim of the study was to determine the differences between tennis players and untrained peers in the development of upper limb proprioception in 10-15-year-olds. A group of 67 girls (12.75 ± 1.46 years old), including 33 tennis players and 34 age-matched untrained controls, was divided into three age groups: A1, 10-11-years-old; A2, 12-13-years-old; and A3, 14-15-years-old. Joint position sense (JPS) and force sense (FS) were assessed by reproducing memorized target angle or torque value of three joints: glenohumeral, elbow, and radiocarpal. The JPS error for the elbow joint in group A1 was 71% and 80% higher (p < 0.01) than that in groups A2 and A3, respectively, and the performance of all tennis players was 27.5% (p = 0.01) better than that of untrained controls. For FS, proprioception of only the more demanding task tested (reproduction of 50% maximal voluntary contraction) and specific function (elbow and radiocarpal extension, and glenohumeral internal rotation) showed development with age. The error values for elbow extension (A1, A2) and the glenohumeral joint (A3) of tennis players were lower than those of age-matched controls. We conclude that the development of FS in the upper limb varied and was related to the specific functions and joints. The 10-13-year-old tennis players showed elbow extensor FS performance at the level of the older participants, while the 14-15-year-old tennis players were characterized with superior FS internal rotation performance in the glenohumeral joint.

Musculoskeletal Disorder Risk Assessment during the Tennis Serve: Performance and Prevention.

Addressing the risk of musculoskeletal disorders (MSDs) during a tennis serve is a challenge for both protecting athletes and maintaining performance. The aim of this study was to investigate the risk of MSD occurrence using the rapid whole-body assessment (REBA) ergonomic tool at each time step, using 3D kinematic analysis of joint angles for slow and fast serves. Two force platforms (750 Hz) and an optoelectronic system including 10 infrared cameras (150 Hz, 82 markers located on the whole body and on the racket) were used to capture the kinematics of the six REBA joint areas over five services in two young male and two young female ranked players. The mean REBA score was 9.66 ± 1.11 (ranging from 7.75 to 11.85) with the maximum value observed for the loading and cocking stage (REBA score > 11). The intermediate scores for each of the six joint areas ranged between 2 and 3 and the maximum value of their respective scales. The lowest scores were observed for the shoulder. Neck rotation and shoulder flexion are parameters that could be taken into account when analyzing performance in the context of MSD prevention.

HUBUNGAN PARENTAL-PEER ATTACHMENT DENGAN SELF-ESTEEM PADA PEMAIN INTERNET GAMING

There are many internet-based activities, one of which is internet gaming, which, at a certain level of frequency, can lead individuals to internet addiction. This research, conducted with meticulous attention to detail, aims to determine the relationship between parental-peer attachment and self-esteem as two factors that are closely related to internet addiction behavior. The study was meticulously conducted on 38 young adult male and female internet gaming players using the Inventory of Parent and Peer Attachment-Revised (IPPA-R) and the Self-Esteem Scale (SES). Data were rigorously analyzed using one-tailed Spearman statistical analysis. The results show a positive relationship between Parental-Peer Attachment and Self-Esteem in internet gaming players. The alienation dimension in Mother, Father, and Peer Attachment has the most significant relationship. Self-competence and Self-liking dimensions have a negative relationship, so that these two dimensions will decrease or increase if one dimension experiences a decrease or increase. Further studies on the other psychological factors that underly internet gaming behavior potentially support the prevention of addiction.

Neuromuscular Fitness Is Associated with Serve Speed in Young Female Tennis Players.

In tennis, the serve plays a key role in determining the success of a player. The speed of a serve is influenced by a multitude of interconnected skills and abilities. The objective of this study was to establish the correlation between the explosive strength of the throwing type, the grip strength and flexibility of the arms, and the shoulder girdle with the serve speed in young female tennis players. Additionally, the study aimed to develop a regression model that accurately predicts the serve speed by analyzing the interplay among these variables. The study was carried out on a group of 20 tennis players, who had an average age of 13.10 ± 0.74 years. Additionally, their height was recorded as 165.70 ± 4.90 cm, and their body mass was measured at 51.45 ± 5.84 kg. To assess the motor abilities of the upper extremities, four tests were used that aimed to measure the explosive strength of the throwing type; one test was for the strength of the hand and forearm muscles, and one test was for the flexibility of the arms and shoulder girdle. Of all the variables examined, the medicine ball throw shot put (MBTSP) (r = 0.75), overhead medicine ball throw (OMBT) (r = 0.70), and grip strength (GS) (r = 0.71) displayed a notable correlation with serve speed (p < 0.05). The results obtained from the multiple regression analysis indicate that the combination of selected predictors (MBTSP-medicine ball throw shot put, OMBT-overhead medicine ball throw and GS-grip strength) explained 75% of the variability in serve speed. Significantly, MBTSP surfaced as the predominant predictor, autonomously elucidating 51% of the variability in serve speed. The importance of improving the analyzed motor skills of young female tennis players to enhance their serve in terms of speed is emphasized by the findings of this research.

Changes in Body Composition and Physical Performance after a Six-Week International Tour in Young Chilean Female Tennis Players.

Junior tennis players travel a lot to play tennis tournaments; this causes them to spend a lot of time away from their homes and disrupts their training, which could reduce their performance and increase the risk of injury. The purpose of this study was to analyze the changes in physical performance and body composition after a six-week international tour in young Chilean female tennis players. Thirty young female tennis players (15.4 ± 0.6) participated in this study. Body weight, skinfolds, and perimeters were measured. Body fat percentage (BFP) and skeletal muscle mass (SMM) were calculated. For physical performance, 5 m sprint, the 505 with stationary start test (505 test), the pro-agility test, countermovement jump (CMJ), and medicine ball throw (MBT) were evaluated. The results show a significant increase in BFP and decrease in SMM (p < 0.01; d = -0.18 and 0.19, respectively). In terms of physical performance, 5 m sprint, the 505 test (p < 0.01; d = -0.95 and -0.95, respectively), CMJ, MBT, and HJ significantly decreased post-tour (p < 0.05; d = 0.96, 0.89 and 0.47, respectively). We conclude that, after a six-week international tour, there were changes in body composition and a significant decrease in 5 m sprint, the 505 test, CMJ, and MBT.

(( The Effect of Special Training Exercises in Developing the Kinetic Speed of the Arms and Legs and some Basic Skills of Young Female Players in Badminton)) selection

&#x0D; Preparing special exercises for training methods to develop the kinematic speed of the arms and legs and some basic skills for selection young female players in badminton.Identifying the effect of special exercises for training methods in developing the kinematic speed of the arms and legs and some basic skills for young female players in badminton.The researcher hypothesizes the following:There are differences between the experimental and control research groups in developing the kinematic speed of the arms and legs and some basic skills of selection young female players in badminton.The researcher concludes the following:Physical and skill training by training methods for the arms and legs of the female players of Kirkuk Governorate clubs in the experimental group achieved a development in all physical and skill variables under study.The use of analysis, presentation, and correction of technical performance errors in skills affects the development of the technical performance level for basic skills.Recommendations:Through the conclusions reached, the researcher recommends a number of recommendations as follows:The necessity to use repetitive training in developing the physical aspect, especially with young female players.The necessity of giving concern to the physical aspect in order to develop the skillful aspect.&#x0D; &#x0D;

Upper limb biomechanical differences in volleyball spikes among young female players

The performance assessment of relevant biomechanical factors is essential for appropriate age-related training progression in volleyball spike (VS). This study aimed to investigate the differences in upper limbs’ (a) range of motion (ROM), (b) angular velocities, and (c) muscular activity during VS among under 16- (U-16), under 18- (U-18), and under 20- (U-20) year-old female volleyball players. The kinematic variables of the spike performances were recorded using six optoelectronic cameras (Vicon Motion system, UK). Additionally, the wireless Trigno system (Delsys, USA) was used to record the electromyographic signals. The one-way ANOVA (1d SPM analysis) exhibited a significantly greater wrist internal rotation ( p &lt; .001), wrist adduction velocity (p &lt; .001), and palmaris longus activity ( p &lt; .001) in the acceleration phase in U-20, compared to the U-16 group. Additionally, the U-20 and the U-18 players portrayed a significantly greater shoulder external rotation ( p &lt; .001) and internal angular velocity ( p = .035) relative to the U-16 group. A significantly greater pectoralis major (p &lt; .001), biceps brachii ( p &lt; .001), and anterior deltoid ( p &lt; .001) activity was observed in the U-20 group, compared to younger groups. This study suggests that older players employ more upper limb muscular activities during spike with the presence of blocks, which enables them to hit the ball with greater velocities and direct the ball in their desired direction through increased wrist ROMs.

The Level of Physical Fitness and Its Relationship to the Level of Skillful Performance of Some Basic Soccer Skills Among Youth Female Players in Palestine

The study sought to identify the level of physical fitness and its relationship to the level of skill performance of some soccer skills among emerging young female players in Palestinian clubs. The study used the descriptive correlational (semi-experimental) approach to achieve its objectives, the study tool consisted of physical tests (speed, flexibility, endurance, agility, muscle strength) and skill tests (running with the ball, passing, controlling the ball, shooting, hitting the ball with the head). The tests were applied to a random stratified sample of (89) emerging young female soccer players from the Palestinian club players and the study reached several results, including: The level of physical fitness of young female soccer players in Palestinian clubs was good, in terms of the arithmetic average of the elements of physical fitness, respectively: speed (8.9) m/s, flexibility (6.05) cm, endurance (2.39) m/min, and agility (14.7) m/s, muscular power (1.45) meters. In addition, the level of skill performance of some of the basic soccer skills of the young female players in the Palestinian clubs was between average and good, in terms of the arithmetic mean of skill performance tests, where the average results of the ball running test were (17.01) seconds, passing skill (11.6) times, controlling the ball (14.87) times, shooting skill (14.43) times, and hitting the ball with the head (4.04) times. The results of the study indicated that there is a statistically significant correlation between the level of physical fitness and skillful performance of young female soccer players in Palestinian clubs and the study reached several results, the most prominent of which is: the need to work on improving and developing the level of physical and skill performance of young female soccer players in Palestinian clubs, increasing interest in women's sports, especially for young women in soccer, by encouraging the Federation of clubs to pay attention to this category, because it forms the core and basis for the following groups, such as the Olympic teams, the approval of coaches for physical and skill tests in the process of selection and evaluation of soccer players.

Activating Specific Handball’s Defensive Motor Behaviors in Young Female Players: A Non-Linear Approach

Traditional models to train and teach young players in team sports assume that athletes learn as linear systems. However, an actual methodology called Non-Linear Pedagogy (NLP) accounts for the fact that the players and the team are complex dynamic systems. Experiences in handball under this methodology are scarce; due to this, an observational study has been conducted with a follow-up, idiographic and multidimensional design, in which 14 female school handball players belonging to four different local teams in Santiago, Chile (age = 15.55 + 0.51) agreed to participate in three special handball training sessions with the use of the NLP methodology where three different constraints were used. Descriptive analysis with the Chi-squared test showed a total of 252 observations where most of the variables were dependent on the constraints (p ≤ 0.001). Frequency showed that mainly "Defense in Line of progression" and "Proximal contact" were the most activated variables, followed by "Harassment" and "Deterrence" for all constraints. However, only constraint 2 highly activated two collective motor behaviors, while the rest only did it with individual motor behaviors. It is concluded that the constraints used in training seem to be effective in activating a group of defensive handball motor behaviors, specifically those that are basic for female school handball players.

Performance Outcomes Following Isoinertial or Machine-Based Training Interventions in Female Junior Tennis Players

To evaluate changes in physical performance indicators after executing a flywheel or machine-based neuromuscular training program in young female tennis players. Twenty-four players were divided into a machine-based group (MG), flywheelgroup (FG), and control group. Countermovement jump(CMJ), sprint time (5, 10, and 15m), change-of-direction (COD) performance (right and left), medicine-ball throws (overhead, forehand, and backhand), and serve velocity were included as tests at baseline, week 4, and week 8. Both MG and FG largely improved from baseline to weeks 4 and 8 of training in CMJ (11.6, 10.6%; effect size [ES] = 1.24, 1.95). Also, sprint time 5m and 10m, COD performance-right, and COD performance-left improved moderately to very largely at week 4 in MG (-5.0% to -6.2%; ES = -1.79 to -4.19) and FG (-2.9% to -5.1%; ES = -1.13 to -1.64), respectively. Regarding medicine-ball throw, only FG improved moderately to very largely from weeks 4 to 8 in overhead (9.3%; ES = 1.46), forehand (8.0%; ES = 1.08), and backhand (6.1%; ES = 1.15). Serve velocity improved moderately from weeks 4 to 8 in MG (5.8%; ES = 0.87). Four weeks of the tested programs seem sufficient to improve physical determinants in young female participants. Greater improvements in CMJ and medicine-ball throw following flywheel neuromuscular training indicate the importance of including exercises that emphasize the stretch-shortening cycle and involve the entire kinetic chain. Performing the same intervention with no load adjustments may stall or even decrease performance in some parameters from weeks 4 to 8.

Changes in Body Composition and Motor Fitness of Young Female Volleyball Players in an Annual Training Cycle.

Modern volleyball requires a high level of motor preparation, specific body build and optimal body composition. The aim of this study was to determine changes in body build, body composition and motor skills in young volleyball female players during an annual training cycle. The research group was comprised of 36 female athletes aged 14-16 years, who were monitored throughout a whole season using a longitudinal study design. Body composition was estimated by bioelectrical impedance analysis. Motor fitness was assessed with the following tests: vertical jumping tests (based on one-handed and two-handed reach, standing vertical jump and running vertical jump), standing long jump and 2 kg medicine ball throw. Measurements were carried out at the beginning of the preparatory period, after its completion, in the middle of the start period, at the end of the start period and during transition periods. The study showed significant changes in body composition and motor fitness level during the annual training cycle. These changes differ in subsequent periods of the macrocycle. The most pronounced changes occurred after the preparatory period and concerned increases in fat-free mass, total water content and cell mass. A significant reduction in fat content was also noted at this point. Systematic monitoring of morpho-functional changes in young female volleyball players over extended periods provides them a chance to maintain their optimal fitness level.

The relative age effect in under-17, under-20, and adult elite female soccer players

ABSTRACT To investigate the RAE in elite female soccer players, the absolute and relative birthdate distributions of players who disputed the Women’s World Cup were assessed. Differences between observed and expected distributions were analyzed using chi-square and effect sizes. The birthdates of 1224 female soccer players were assessed in Under-17 (N = 336), Under-20 (N = 336) and adult (N = 552) categories. There was no significant RAE in adult category for different playing positions and players in general (including all playing positions per age category). There was significant RAE for midfielders and players in general with mainly small effect sizes for the U-17 and U-20. In both age categories, players born in Q1 were over-represented with the highest quartile ratio for midfielders. In regard of RAE and success defined by final ranking at the World Cup, we found no significant differences between the birthdate distributions of players who participated in either the group stages or finally the knockout phases. Coaches should consider this information to avoid bias in talent programs designed to promote and select female soccer players independently of their birthdates. Young female players should be encouraged to learn to play in different field positions before to reach high-level performance.

External focus of attention enhances arm velocities during volleyball spike in young female players.

The aim of this study was to investigate the effect of different volleyball-specific attentional focus instructions on arm velocities of a volleyball spike in young female volleyball players using the Statistical Parametric Mapping method. Twelve young female volleyball players (13.6 ± 0.6 years old, 1.8 ± 0.8 years of experience in volleyball training) were asked to perform a volleyball spike in a standing position in three different attentional focus conditions including internal focus (IF, i.e., pull back your elbow prior to transfer momentum), external focus, (EF, i.e., imagine cracking a whip to transfer momentum), and control (CON, i.e., no-focus instruction). A Qualisys 3D motion capture-system was used to track reflective markers attached to the arm, forearm, and hand. Consequently, four phases of the volleyball spike including wind-up, cocking, acceleration, and follow-through were analyzed. A one-way repeated-measure ANOVA using one-dimensional statistical parametric mapping (SPM1d) showed that players achieved greater velocities in the hand (p < 0.01), forearm (p < 0.01), and arm (p < 0.01) using the EF instructions from the start of the wind-up phase to the acceleration phase. Post-hoc (SPM1d-t-tests-paired) analyses indicated significantly greater arm, forearm, and hand velocities during the EF condition, compared to CON (p < 0.01, p < 0.01, and p < 0.01 respectively) and IF (p < 0.01, p < 0.01, and p < 0.01 respectively) conditions. These findings suggest that EF instructions had an immediate impact on increasing volleyball spike velocity from the start of the wind-up phase to the acceleration phase prior to ball contact.

Body Composition, Somatotype and Raw Bioelectrical Impedance Parameters of Adolescent Elite Tennis Players: Age and Sex Differences

Studies analyzing tennis players' body composition and morphological and bioelectrical characteristics are scarce, especially among adolescents. This study aimed to explore sex- and age-based differences in body composition, somatotype, and bioelectrical properties among elite young male and female tennis players aged 13-16 years. Twenty-two male (14.45 ± 1.10 years) and 20 female (14.30 ± 1.03 years) elite tennis players participated in this study and were compared according to sex (males vs. females) and, within each sex, according to age (13-14 years vs. 15-16 years). Female adolescent elite tennis players had higher body fat (BF) percentage and higher endomorphy than males. They also had lower skeletal muscle mass and total body water (TBW) percentages. Older boys had lower resistance and a higher TBW and phase angle (PhA) than younger boys, likely due to maturation and performance. No significant differences were found between younger and older girls, except for the PhA, potentially associated with better cell function and performance. This study provides valuable reference data for coaches of elite youth tennis players. Due to the few differences found in body composition and somatotype in the different age groups, the PhA may be used by practitioners as a reference for cell function and performance.

Measures of Knee Capability in Handball Players Differ by Age: A Cross Sectional Study.

The return to sport after knee injury is challenging. This is burdensome for sports with a high incidence of injuries, such as team handball. Various tests guide decision making, but often the athlete's preinjury performance of these measures remains unknown. Moreover, objective return-to-sport criteria of a matching population are missing. The purpose of this study was to evaluate objective measures of knee capability in handball depending on players' age. Two hundred sixty-one handball players performed a functional test battery designed to evaluate knee capability after an anterior cruciate ligament injury: two- and one-legged stability analysis, jumps, speed tests, and agility assessments. For age-specific evaluation, athletes were divided into three age groups (16-19; 20-29;≥30 years). Male players showed differences in two and one-legged jumping height (p<0.02) as well as power per body weight (p<0.01) between age groups. Young female players reached better results in two-and one-legged stability. Besides the quick feet test, results of females did not differ between age groups. Functional knee stability in healthy handball players is partly influenced by age, and females show better results in stability and male athletes in power measurements. This aspect should be considered for return to sports testing and underlines the importance of performance measures in athletic testing.

Anaerobic speed reserve in young female rugby players: Methods and applications

This study aimed to identify differences and concordances among anaerobic speed reserve calculated considering different tests of maximal sprint speed and aerobic fitness in young female athletes. Ten female rugby players (15.00 ± 0.21 years) performed sprint tests (20 m, 30 m and 40 m) to measure maximal sprint speed and aerobic tests to measure speed associate to maximum oxygen uptake, maximal aerobic speed and speed associated to intermittent fitness test. Nine combinations of anaerobic speed reserve were calculated. Anaerobic speed reserve using 20 m (speed associate to maximum oxygen uptake = 2.01 ± 0.59 m·s −1 , maximal aerobic speed = 1.84 ± 0.59 m·s −1 , speed associated to intermittent fitness test = 2.09 ± 0.46m·s −1 ) showed lower values when anaerobic speed reserve was determined with 30 m (speed associate to maximum oxygen uptake = 2.20 ± 0.63m·s −1 , maximal aerobic speed = 2.03 ± 0.52 m·s −1 , speed associated to intermittent fitness test = 2.28 ± 0.51 m·s −1 ; p = 0.009) and 40 m (speed associate to maximum oxygen uptake = 2.21 ± 0.60 m·s −1 , maximal aerobic speed = 2.04 ± 0.48m·s −1 , speed associated to intermittent fitness test = 2.29 ± 0.41 m·s −1 ; p = 0.037). Also, the methods presented concordance among maximal sprint speed tests and aerobic tests. This suggests the viability of different tests to evaluate anaerobic speed reserve, and sprint tests of at least 30 m are more suitable for calculating anaerobic speed reserve. Cette étude visait à identifier les différences et les concordances entre la réserve de vitesse anaérobie calculée en tenant compte de différents tests de vitesse maximale de sprint et de capacité aérobie chez de jeunes athlètes féminines. Dix joueuses de rugby (15,00 ± 0,21 ans) ont effectué des tests de sprint (20 m, 30 m et 40 m) pour mesurer la vitesse maximale de sprint et des tests aérobies pour mesurer la vitesse associée à la consommation maximale d’oxygène, la vitesse aérobie maximale et la vitesse associée à test de condition physique intermittent. Neuf combinaisons de réserve de vitesse anaérobie ont été calculées. Réserve de vitesse anaérobie utilisant 20 m (vitesse associée à la consommation maximale d’oxygène = 2,01 ± 0,59 m·s −1 , vitesse maximale aérobie = 1,84 ± 0,59 m·s −1 , vitesse associée au test de condition physique intermittent = 2,09 ± 0,46 m·s −1 ) ont montré des valeurs inférieures lorsque la réserve de vitesse anaérobie a été déterminée avec 30 m (vitesse associée à la consommation maximale d’oxygène = 2,20 ± 0,63 m·s −1 , vitesse aérobie maximale = 2,03 ± 0,52 m·s −1 , vitesse associée au test de condition physique intermittent = 2,28 ± 0,51 m·s −1 ; p = 0,009) et 40 m (vitesse associée à la consommation maximale d’oxygène = 2,21 ± 0,60 m·s −1 , vitesse maximale aérobie = 2,04 ± 0,48 m·s −1 , vitesse associée au test de condition physique intermittent = 2,29 ± 0,41 m·s −1 ; p = 0,037). De plus, les méthodes présentaient une concordance entre les tests de vitesse maximale de sprint et les tests aérobies. Cela suggère la viabilité de différents tests pour évaluer la réserve de vitesse anaérobie, et les tests de sprint d’au moins 30 m sont plus appropriés pour calculer la réserve de vitesse anaérobie.

Player Sex and Playing Surface Are Individual Predictors of Injuries in Professional Soccer Players.

The factors contributing to soccer injuries and their influence on the occurrence of injury are controversial and inconclusive. This study aimed to determine the association between player characteristics and playing factors with injuries in professional soccer players. One hundred and fifty-two professional soccer players completed a self-administered questionnaire that asked about demographic information and injury profile, the type of playing surface on which they sustained their injury, medical treatment, and the time lost due to soccer injury at the end of the soccer season. The injury rate was 44.74% (n = 68; males: 61.50% (n = 56), females: 19.70% (n = 12)). Players' age (OR: 1.15, 95%CI: 1.05-1.25, p &lt; 0.002) and BMI (OR: 1.21, 95%CI: 1.06-1.38, p &lt; 0.003) were significantly associated with soccer injuries. After adjusting for age and BMI, players' sex (OR: 5.39, 95%CI: 2.11-13.75, p &lt; 0.001), previous soccer injury (OR: 3.308, 95%CI: 2.307-29.920, p &lt; 0.001), and playing surfaces (OR: 11.07, 95%CI: 4.53-27.03, p &lt; 0.001) were the significant predictors of soccer injuries. Players' age, BMI, sex, previous soccer injury, and playing surface were associated with injuries among professional soccer players. Old male athletes with high BMI, previous soccer injuries, and playing on natural grass were more likely to sustain soccer injuries than young female players with low BMI who had no previous injuries and played on synthetic surfaces.

Body height prediction of young volleyball female players

The aim of this study is to predict the „adult” body height of female volleyball players by using the method of Sherar et al. The sample of participants included 49 senior Croatian female volleyball players (22.14±1.26 years). Varibales assessed were: Body height, Body mass, Age at Peak height velocity (PHV), Coefficient of variation in PHV, Prediction of adult height, and Variation in predicted adult height. T test was used to analyze the differences between active volleyball players and drop-outs, 8 years after the first measurement of anthropometric characteristics, with the level of significance set at p≤0.05. By using the Bland-Altman method, a plot of the differences between the measured body height and the lowest predicted body height was presented. The obtained results indicate that the predictive values of adult body height in active volleyball players are lower than the actual values, i.e., drop-outs have lower values of deviation from actual adult body height. Significant differences were found between active and inactive volleyball players/drop-outs in the 4 applied variables.

In-Game Physiological Responses of Young Elite Male and Female Golf Players: A Field-Based Study

In-Game Physiological Responses of Young Elite Male and Female Golf Players: A Field-Based Study

The influence of growth and development on shoulder rotators strength in young male and female elite tennis players.

Tennis practice requires a lot of technical, physical and mental qualities that have to be trained from the youngest age. The important number of hours spent on the court can lead, medium-to-long term to strength or flexibility adaptations, even in the youngest players. The current study aimed to explore the developmental consequences of repetitively playing tennis on shoulder range of motion and shoulder rotators' strength in elite male and female tennis players. Eigthy four painfree elite tennis players were assessed during preseason between 2009 and 2019. Clinical assessment included internal and external rotation range of motion and forward shoulder posture while maximal internal and external rotators strength were assessed with an isokinetic dynamometer in concentric and in eccentric modes (at 60°/s and 240°/s). In male players, growth and maturation induced an increase in forward shoulder posture. Absolute peak torque and bodyweight peak torque of internal and external rotators in concentric and eccentric mode were also significantly increased during with age while ER/IR concentric ratios were significantly decreased. In the female players, only absolute peak torque of internal and external rotators in concentric mode and eccentric strength of external rotators were significantly influenced by the development. Specific adaptations were found in male and female players with age and practice. The important variability in the results within the different age categories and the gender strengthens the importance of regular screening (and isokinetic evaluations) in young tennis players in order to highlight potential atypical profiles, which could have a negative influence on performance or increase the risk of injuries during the development of the player.