Club Head Research Articles

Case study based on ball trajectory and motion analysis of international long-drive distance golf player

This study aimed to measure the ball trajectory, club face control, and body movements of a long-drive distance golf player (LDP) who excels in international competitions. The participant randomly executed 10 shots of three trajectory types—straight, draw, and fade—using a driver in an indoor facility. The results indicated that the fade shot exhibited a significantly longer ball carry distance (S: 329.7 ± 31.7, D: 301.8 ± 30.6, F: 345.7 ± 18.4 yards). The offline distance also showed a significant increase (S: 3.6 ± 37.3, D: −12.0 ± 26.4, F: 30.8 ± 42.2 yards) for the fade shot. If shots exceeding the 60-yard width of the offline distance resulting in invalid attempts were counted, there were 2 of 10 attempts for straight, 0 of 10 attempts for draw, and 4 of 10 attempts for fade. Analysis of the ball trajectory of draw shots revealed a statistically significant trend towards lower peak height and descent angle. In all three trajectories, there were no significant differences observed in ball speed (S: 189.3±6.3, D: 192.1±5.0, F: 193.3±4.1 mph) and club head speed (S: 137.2 ± 1.6, D: 137.0 ± 1.2, F: 137.7 ± 2.2 mph). For the draw shots, the club path exhibited in-to-out trajectory, moving the club face, and the face angle was open during the ball impact. It is evident that even in golf players aiming for the maximum distance in a single shot, club head speed and grip speed tend to remain relatively constant. The findings indicate that the LDP executes precise movement and face control tailored to the three ball trajectories, demonstrating sophisticated motor control.

Golfers' Performance Is Improved More by Combining Foam Rolling and Dynamic Stretch to the Lead Hip Than Practice Golf Swinging.

Hamada, Y, Akasaka, K, Otsudo, T, Sawada, Y, Hattori, H, Kikuchi, Y, and Hall, T. Golfers' performance is improved more by combining foam rolling and dynamic stretch to the lead hip than practice golf swinging. J Strength Cond Res 38(7): e391-e397, 2024-Warming up is considered effective in improving performance and preventing injury. Despite this, there have been few studies investigating warm-up programs in golf and whether specific factors contribute to improved performance. The purpose of this study was to examine the immediate effects of combined foam rolling and dynamic stretch (FR + DS) to the lead hip on golf swing performance, hip range of motion (ROM), and muscle strength in amateur golfers using a randomized crossover design. The study sample comprised 22 men (mean ± SD ; age, 32.6 ± 8.5 years, body mass index (BMI), 23.4 ± 2.7 kg·m -2 ). Subjects were assigned to receive either FR + DS or repetitive golf swing practice (SW) before crossing over to the other intervention for another day. Measurements included golf swing performance (ball speed, club head speed, flight distance ["carry"], spin rate, and launch angle), hip internal rotation (IR), and external rotation (ER) ROM, as well as hip IR and ER muscle strength. Comparisons between groups were made before and after each intervention. For golf swing performance, FR + DS improved "carry" significantly more than SW ( p < 0.05). No significant differences in golf swing performance other than "carry" were found. In addition, IR ROM and IR muscle strength of the lead hip were significantly increased in the FR + DS group ( p < 0.05). FR + DS has effects on improving lead hip IR ROM and IR muscle strength, which may facilitate golfers' swing and "carry." FR + DS shows promise as a warm-up method for amateur golfers who want to improve golf performance.

Twelve Weeks of Progressive Resistance Training Positively Improves Physical Fitness and Golf Swing Performance in Talented Youth Golfers.

Shaw, J, Gould, ZI, Oliver, JL, and Lloyd, RS. Twelve weeks of progressive resistance training positively improves physical fitness and golf swing performance in talented youth golfers. J Strength Cond Res 38(6): 1103-1110, 2024-This aim of this study was to investigate the effects of a 12-week resistance training program in talented junior golfers. Eighteen talented youth golfers were pair matched by maturity status and handicap, and subsequently allocated to an experimental (EXP) or control group. During the 12-week intervention, both groups continued with their normal golf practice while the EXP group also completed a progressive twice-weekly resistance training program. At baseline, subjects performed multiple trials of an isometric midthigh pull (IMTP), countermovement jump (CMJ), standing long jump, golf movement screen (GMS), and isometric plank hold. Club head speed (CHS) and carry distance for a 6-iron and driver were also measured using a commercial launch monitor. When controlled for maturity offset, there were significant ( p < 0.05) interaction effects in favor of the EXP group for absolute ( g = 1.29) and relative ( g = 2.06) peak force for the IMTP, CMJ absolute ( g = 0.73) and relative ( g = 0.66) peak power, jump height ( g = 1.05), modified reactive strength index ( g = 1.30), lateral ( g = 0.48-0.88) and horizontal jump distance ( g = 1.20), and GMS total score ( g = 1.07). Significant interaction effects were also reported in 6-iron and driver CHS and carry distance in favor of the EXP group ( p < 0.05; g = 0.41-1.64). These findings indicate that twice-weekly resistance training in combination with regular golf practice can stimulate increases in measures of strength, power, and movement competency in youth golfers, which should contribute to enhanced golf swing performance.

The Effect of Biomechanics Information on Driver Swing Learning of Intermediate Golfers

PURPOSE This study investigates the effectiveness of biomechanics information on intermediate golfers driver swing learning. It analyzes changes in center of pressure (COP) patterns, GRF Direction Inclination, driver performance, and learners psychological responses to determine the learning effects.METHODS Subjects were 32 right-handed male golfers (handicap 15-23) who had no difficulty in performing the golf driver swing (Full swing). Four groups were selected, BF (Biomechanics Feedback group), BVC (Biomechanics Verbal Cue group), CB (Combination group), and CT (Control group), and assigned randomly. Driver swing learning showed results after 6 weeks,and a transfer test was conducted 1 week after the completion of the learning.RESULTS Analysis of COP patterns and GRF Direction Inclination indicated changes in the BF, BVC, and CB groups. Furthermore, analysis of driver distance (m), club head speed (km/h), and ball spin rate (rpm) revealed that during the 6-week acquisition phase, all three groups (excluding the control group) showed improvements in driver distance, club head speed, and ball spin rate. However, there were no statistically significant differences among the groups. In contrast, the transfer test showed statistically significant differences among the groups, with the CB group exhibiting the highest driver distance. Learners' psychological responses during the learning process were trust, understanding, and satisfaction. The understanding factor was relatively higher in the CB and BVC groups compared to the BF group.CONCLUSIONS In summary, biomechanics information (BI) was effective in improving driver performance, and changesappeared in the COP pattern and GRF Direction Inclination, indicating a change in movement. Therefore, BI can be fully utilized for athletes or high-level advanced players and for motor learning for intermediate-level students.However, BI can only improve learning effects by strengthening learners' “understanding” when visual feedback forms and verbal cues are provided together.

The Complex Club-Fan Relationship: A Glimpse into Stakeholders’ Experience With the Aggressive Interventions of Fans

Abstract This study aims to understand the club-fan relationship from the standpoint of club owners, CEOs, and head coaches (i.e., managers). Eight in-depth interviews were conducted with prominent figures from professional football and basketball in Israel. The current findings indicate that while clubs need the support of their fans, they often find themselves struggling with their aggressive behavior and demands to influence the club’s decision-making processes. First, this qualitative research provides an important insight into the unique experience of pivotal decision-makers in professional sports. Second, we apply the complexity lens to discuss the challenges faced by such stakeholders when trying to manage fans’ disruptive interventions.

Within- and Between-Session Reliability of Golf Swing Variables Using the TrackMan Launch Monitor in Talented Golfers.

Shaw, J, Gould, ZI, Oliver, JL, and Lloyd, RS. Within- and between-session reliability of golf swing variables using the TrackMan launch monitor in talented golfers. J Strength Cond Res 37(12): 2431-2437, 2023-The purpose of the current study was to establish the within- and between-session reliability of the TrackMan launch monitor to measure golf swing variables. Twenty-one golfers attended 2 test sessions, with data captured from 3 golf shots using a 6-iron and 3 using a driver. Club head speed (CHS), ball speed, smash factor, attack angle, club path, launch angle, spin rate, spin axis, carry distance, and total distance were determined from data collected using a TrackMan launch monitor. Within- and between-session reliability for each variable was calculated using repeated-measures analysis of variance, intraclass correlation coefficients (ICCs), and coefficients of variation (CVs) with 95% confidence intervals. Within-session measures of CHS, ball speed, carry distance, and total distance were found to be reliable for both 6-iron and driver (CV ≤ 5.8, ICC ≥ 0.87) and launch angle for the 6-iron (CV = 6.7-9.3%, ICC = 0.87-0.92). Between-session measures of CHS, ball speed, smash factor, launch angle, carry distance, and total distance for both 6-iron and driver (CV% = 0.7-9.1%, ICC = 0.5-0.99) and spin rate for 6-iron (CV% = 9.4%, ICC = 0.89) were also shown to be reliable. These findings indicate that the TrackMan launch monitor is a reliable method for measuring CHS, ball speed, carry distance, and total distance in talented golfers, both within and between sessions. Practitioners can confidently use these variables to assess golf swing performance in golfers and evaluate meaningful changes in response to training interventions.

Administrative activity features of the penal institutions psychological service in working with convicts: problems and ways of improvement

In connection with the processes of reforming the social and educational system of convicts in Ukraine, the author studies in detail the state of administrative activities of penal institutions (PI). The legislative features of the administrative activity of the psychological service of the Ukrainian Criminal Police Service in working with convicts have been revealed. The indicators of the effectiveness of the correction and resocialization of convicts in Ukraine were analyzed and the staffing standards of the total number of personnel in the section of the PI were calculated. A positive trend to reduce the number of convicts in Ukraine for the period of 2018-2021 by 4 %, a high mortality rate of prisoners, which negatively characterizes administrative activities and social and educational work with convicts, was revealed. In Ukraine, practical social and educational work with convicts takes place exclusively in departments, the convicts for whom an individual program has been drawn up, the staff of the institution, employees of state and non-state organizations involved in working with the convict are responsible. On average, 1 to 2 psychologists work in the PI, regardless of the average number of convicts on the list, with the involvement of other specialists in certain types of PI (educator, methodologist, club head, circle leader, library head). The key problem of the resocialization of convicts has been identified: excessive workload on the staff due to a significant number of convicts and the need for individual work with them. As a result, there is a low culture of correction and resocialization, a low efficiency of resocialization of prisoners, a low level of trust in psychologists, along with a low level of involvement of communities in the rehabilitation of convicts. Thus, in Ukraine, the organizational and administrative activities of the bodies and institutions of the criminal enforcement system in the context of their performance of social functions are not sufficiently effective. Key words: management activity, heads of penitentiary institutions, administrative activities of personnel, penitentiary service.

Off the shelf: Investigating transfer of learning using commercially available virtual reality equipment.

The evolution of virtual reality (VR) has created the opportunity for a relatively low-cost and accessible method to practice motor skills. Previous studies have demonstrated how motor skill practice in non-immersive virtual environments transfers to physical environments. Though minimal research has investigated motor learning and transfer within immersive VR, multiple experiments provide empirical evidence of positive transfer effects. Most studies have used software engines and modified hardware to enhance the similarities between virtual and physical environments. However, many learners and practitioners currently use commercially available VR intending to enhance real-world performance, though there is very little evidence to support the notion of positive transfer for these systems. Therefore, this experiment aimed to investigate how motor skill practice using a commercially available VR system improved real-world performance and how that compared to physical practice. Participants (n = 68) were randomly selected into one of two groups: virtual reality (VR) practice (n = 33) or real-world (RW) practice (n = 35). The experiment occurred over two consecutive days, with a pretest, posttest, and practice phase occurring each day. The pre- and post-testing phases were identical for both groups and consisted of putting a golf ball 10 times on a carpeted surface towards the center of a target. The practice phases consisted of 60 total putts per day in the respective environment (VR or RW). Participants continuously alternated golf putting holes from three different distances until they accrued 60 total putts. Participants in the RW group performed golf putts to three targets. Participants in the VR group also performed golf putts on three different miniature golf putting holes, using the commercially available Oculus Rift and the Cloudlands VR Minigolf game. The VR putting targets were designed to replicate the putting holes in the physical environment. Separate 2 (group) x 4 (test) repeated measures ANOVAs were used to assess accuracy and club head kinematics. The results revealed a significant main effect for test, but not for group. Post hoc analyses revealed that both groups significantly improved their putting accuracy and club head kinematics at similar rates. The results from this study indicate that the transfer of learning that occurred as a result of practicing in a commercially available VR environment was similarly effective when compared to RW practice.

Lower Body Joint Moments during the Golf Swing in Older Adults: Comparison to Other Activities of Daily Living.

Golf participation has increased dramatically in the last several years. With this increase in participation, clinicians need better evidenced based strategies to advise those golfers with different pathologies when it is safe to return to the game. Golf teaching professionals also need to understand how to alter golf mechanics to protect injured and/or diseased joints in golfers to allow them to play pain free and avoid further injury. This study used a 3-dimensional link segment model to calculate the net joint moments on the large lower limb joints (knee and hip) during golf (lead and trail leg) and two commonly studied activities of daily living (gait and sit-to-stand) in 22 males, healthy, adult golfers. It also examined the correlations between these knee and hip joint loads and club head speed. The external valgus knee moment and the internal hip adduction moment were greater in the lead leg in golf than in the other activities and were also correlated with club head speed. This indicates a strategy of using the frontal plane GRF moment during the swing. The internal hip extension and knee flexion moment were also greater in the golf swing as compared with the other activities and the hip extension moment was also correlated with club head speed. This emphasizes the importance of hip extensor (i.e., gluteus maximus and hamstring) muscle function in golfers, especially in those emphasizing the use of anterior-posterior ground reaction forces (i.e., the pivoting moment). The golf swing places some loads on the knee and the hip that are much different than the loads during gait and sit-to-stand tasks. Knowledge of these golf swing loads can help both the clinician and golf professional provide better evidence-based advice to golfers in order to keep them healthy and avoid future pain/injury.

Effects of left thigh blood flow restriction exercise on muscle strength and golf performance in amateur golfers.

This study aimed to investigate the effect of lower-extremity strengthening exercise (LSE) with and without blood flow restriction (BFR) on the left thigh on golf performance. Eighteen amateur golfers with more than 1 year of golf experience participated in the study and were randomly divided into two groups: LSE+BFR group (LSE with BFR on the left thigh, n=9) and LSE group (LSE without BFR, n=9). The LSEs consisted of squats, lunges, and standing leg curls. All exercises were performed 3 times a week for 6 weeks. Changes in thigh muscle strength, plantar foot pressure (weight transfer), and golf performance, such as club head speed, ball speed, and carry distance were measured before and after the exercise program. Right knee extension (P<0.001) and left knee extension and flexion (P<0.001) strength were higher in the LSE+BFR group than in the LSE group. The changes in plantar foot pressure confirmed that smooth weight transfer appeared in E1 (event 1) (address) (P<0.05) of the LSE+BFR group, which confirmed that the carry distance (P<0.05) of the LSE+BFR group improved after the exercise program. The results of this study showed that BFR muscle strengthening exercise are more effective than basic simple muscle strengthening exercise in improving golf performance through muscle strength and weight transfer improvement.

Development of the marketing competence of heads of clubs of non-formal education institutions

Development of the marketing competence of heads of clubs of non-formal education institutions

The effectiveness of the humble leadership of the heads of football clubs in Nineveh governorate to reducing the emotional exhaustion of the members of its administrative bodies from their point of view

The effectiveness of the humble leadership of the heads of football clubs in Nineveh governorate to reducing the emotional exhaustion of the members of its administrative bodies from their point of view

Influence of muscle strength, power, and rapid force capacity on maximal club head speed in male national level golfers

ABSTRACT This study investigated the relationships between maximal club head speed (CHS) and physiological and anthropometric parameters in 21 national-level male golfers (age: 21.9 ± 3.9 years; handicap: +1.1 ± 1.7). Maximal isometric strength (MVC) was measured during isometric mid-thigh pull and bench press, while MVC and rate of force development (RFD) were measured during isometric leg press. Power, lower limb stiffness, positive impulse, jump height and RFDdyn were measured during countermovement jump (CMJ). Moreover, rotational trunk power, active range of motion (AROM) and anthropometrics were determined. Comparisons were made between participants with high (FTG) and low (STG) CHS, respectively. FTG demonstrated greater isometric mid-thigh pull and isometric bench press MVC, leg press RFD, rotational trunk power, and CMJ parameters (except RFDdyn) as well as reduced hip AROM compared to STG (P < 0.01). CHS was positively correlated to isometric mid-thigh pull and isometric bench press MVC, leg press RFD, rotational trunk power and CMJ parameters (P < 0.01). In conclusion, strong positive correlations were observed between maximal CHS and maximal strength and power parameters. Consequently, improving maximal neuromuscular strength and power may be considered of importance for golfers, as greater CHS and accompanying driving distance may lead to competitive advantages.

Do the Pelvic and Thorax Movements Differ between the Sexes and Influence Golf Club Velocity in Junior Golfers?

The aim of this study was to determine the differences in golf swing execution in terms of the parameters of the pelvis and thorax movement between the sexes in junior golfers and their relation to the golf club velocity. Elite female and male players (age: 15.4 ± 1.0 and 15.8 ± 1.7 years, respectively) performed 10 golf swings with a driver under laboratory conditions. Pelvis and thorax movement parameters and golf club velocities were measured using a three-dimensional motion capture system. Statistical parametric mapping analysis of pelvis-thorax coupling revealed a significant difference (p < 0.05) between boys and girls during backswing. Analysis of variance showed a significant effect of sex on the parameters of maximal pelvic rotation (F = 6.28, p = 0.02), X-factor (F = 5.41, p = 0.03), and golf club velocity (F = 31.98, p < 0.01). No significant relationship was found between pelvis and thorax movement parameters and golf club velocity in the girls. We found a significant negative relationship between the parameters of maximal thorax rotation and golf club velocity (r = -0.941, p < 0.01) and between X-Factor and golf club velocity (r = -0.847, p < 0.05) in the boys. We suggest that these negative relationships in males were caused by the influence of hormones during their maturation and biological development, where there is decreased flexibility (lower shoulders rotation and X-factor) and growth of muscle strength (higher club head velocity).

The effect of short-term performance fluctuations on long-term performance: evidence from the English Premier League

PurposeThis paper aims to examine the effect of short-term performance fluctuations on long-term performance of football clubs.Design/methodology/approachThis study did not develop any hypothesis for statistical testing. Instead, a database composing of 24 seasons of English Premier Club clubs’ performance was used to analyse for temporal fluctuations of club performance and examined whether such fluctuations would be substantiated in the long run.FindingsFindings showed that club performance exhibited a non-unit root nature, which in turn suggested that clubs’ long-term performance was only temporally affected by short-term performance fluctuations, leading to the evidence that club performance tended to return to the club’s long-run equilibrium after experiencing temporary high or low positions.Originality/valueFindings of this paper provide important information regarding the cost-benefit implications of the reactions of the club management to boost or rectify short-term performance fluctuations by, for example, replacing the club manager or head coach.

Perforated Stone Objects in the Oceania Collection of the Museum of Ethnography in Budapest

The author of this paper studied 59 perforated stone objects in the Oceania collection of the Museum of Ethnography in Budapest. The items stem from the former British and German New Guinea colonies. For most objects, detailed information on the exact place of origin is not available. Therefore, the aim of the present review could be nothing more than a more or less complete description of the objects and an approximate assessment based on the abundant ethnographic literature available on the territory of Papua New Guinea. Since the studied objects are primarily club heads made of stone, it is, therefore, necessary to clarify the technological issues related to the manufacturing of these stones, their typological classification, and their morphometric measurements. Explanatory comments of any kind by the author and the free translation of quotations in the German language are enclosed in brackets. Each artefact in the text will be referred to by its inventory number (inv. no.). In Fig. 1, a sketch map of Papua New Guinea with some of the locations mentioned in the text can be seen.

대학 골프선수의 팔 체력과 클럽 스피드의 관계

This study defined the relationship between the arm strength and club speed of college female golf players and determined a standard value of arm strength for club speed. To this end, by applying the significance sampling method among non-probability sampling methods, 56 players were selected as subjects who, as of 2022, participated in official golf matches as college students. In addition, arm strength, muscular endurance and flexibility, and club head speed (carry swing speed, ball speed) were measured and analyzed, and the following results were identified.BR First, in the relationship between arm strength and club speed of college female golf players, arm strength had a positive effect on club speed. Second, in the relationship between arm muscular endurance and club speed of college female golf players, arm muscular endurance had a positive effect on the carry factor of club speed. Third, it was found that there was no significant effect on the relationship between arm flexibility and club speed of college female golf players. Fourth, in setting the arm strength standard for club speed of college female golf players, in terms of muscle strength and muscular endurance, the validity of the baseline setting was established, the baseline for strength was set at .802, and the baseline for muscular endurance was set at .344.

Investigating the Effects of Differential Learning on Golfers' Pitching Performance as a Function of Handicap.

Traditionally, golf instruction has been oriented toward imitation of role models, guided by errors that surround a channel of supposedly correct repetition. Recent motor learning approaches relying on the dynamics of living systems suggest the inclusion of additional noise during practice for supporting players’ movement exploration and improving adaptability that in consequence will lead to increased performance. While the effectiveness of this approach has now been demonstrated in many sports, research exploring the effects of differential learning (DL) in golf is scarce, especially when considering different shot distances and players with various handicap levels. Therefore, the purpose of this study was to compare the effects of an enriched learning and information intervention as opposed to a more constrained approach, on the pitching performance of golfers with different handicaps from different distances. A total of 29 adolescent golfers with an average experience of 7.8 years were divided into a DL (n = 15) and a repetitive-oriented (RB, n = 14) group. Both groups were further compared dependent on their handicap level (DL, low handicap n = 7, high handicap n = 8; RB, low handicap n = 5, high handicap n = 9). The TrackMan 4 was used to measure the shot performance for 20 m, 35 m, and 50 m distances (10 shots from each distance) based on a pre- and post-test design. Each group performed the same number of trials (n = 270, 9 executions per distance per session) across 10 sessions. Analysis of covariance (ANCOVA) was used for the statistical analysis, using the pre-test as covariate and the post-test as dependent variable. The DL group revealed advantageous adaptations in the attack and face angle (p ≤ 0.05), while also in the dynamic loft (p ≤ 0.05), mostly for the 35 m and 50 m. In addition, this intervention led to improvements in the score, club head speed, and carry distance for the 50 m when compared to the RB (p ≤ 0.05; small effects). The low handicap players from the DL group also revealed adaptation in the angles’ variables (p ≤ 0.05) when compared with high handicap players, who improved the score (p ≤ 0.05) in all distances after intervention. The low handicap players from the RB group improved the score (p ≤ 0.05) and club speed (p ≤ 0.05) for the 20 and 35 m, while the high handicap golfers revealed higher improvements for these variables only in the 50 m distance condition. Overall, coaches may incorporate approaches into their skill training that increase the number of opportunities to improve the performance of both experienced and non-experienced players by promoting the adaptability of movement patterns.

Building a scale of administrative competencies for the heads of sports clubs in Iraq from the point of view of administrative bodies

Search objective: Building a scale of administrative competencies for the heads of sports clubs in Iraq from the point of view of members of the administrative bodies. While the third chapter included the basic research procedures to reach sound results, and sound scientific steps were followed to build the scale for the study. The researchers used the descriptive approach for its suitability and the nature of the current research. The research sample included members of the administrative bodies of Iraqi clubs, who numbered (198) and represented a percentage of (12, 3) From the total research community, the researchers resorted to adopting the questionnaire as an appropriate means to collect information from the research sample. The researchers used the arithmetic mean, standard deviation, and percentage as appropriate statistical means. The researchers reached the following: Building the administrative competency scale from the point of view of the members of the administrative bodies of the Iraqi sports clubs in its final form, and it consists of (48) paragraphs in its final form. The researchers recommend the following: Application of the measure of administrative competencies to a sample of membersofthe administrative bodies of Iraqi sports clubs

Regulatory conflict and its relationship to organizational justice among the heads of sports clubs in Nineveh province

The search aims to identify: - Regulatory conflict and its relationship to organizational justice among the heads of sports clubs in Nineveh province. The researchers used the descriptive approach to suit the nature of the current research, and the eye of the research included the heads of sports clubs in Nineveh province, and the researchers used the statistical package (spss25) and the researchers assumed that there is no statistically significant moral correlation between the organizational conflict and organizational justice among the heads of sports clubs in Nineveh province. The researchers concluded: - there is a statistically significant reverse moral correlation between the organizational conflict and organizational justice of the heads of sports clubs in Nineveh province. The researchers recommended: - Holding courses and workshops for the heads of sports clubs in Nineveh province on ways and methods of conflict resolution and how to deal with them. - Applying laws and decisions to all employees without bias, and providing employees with all the details that concern them. - The distribution of tasks, responsibilities and ways of carrying out work in clear ways so that it does not become a space for conflict for overlapping work between workers. - Conducting studies similar to the current study to be more extensive in terms of sample and society. - Work to build positive working relationships between club presidents and employees of the sports institution.