scholarly journals Epidemiology and Impact of Abdominal Oblique Injuries in Major and Minor League Baseball

2017 ◽  
Vol 5 (3) ◽  
pp. 232596711769402 ◽  
Author(s):  
Christopher L. Camp ◽  
Stan Conte ◽  
Steven B. Cohen ◽  
Matthew Thompson ◽  
John D’ Angelo ◽  
...  
Keyword(s):  
Platelet Rich Plasma ◽  
Tracking System ◽  
Injury Rate ◽  
Professional Baseball ◽  
Baseball Players ◽  
Injury Rates ◽  
Minor League Baseball ◽  
Time Out ◽  
Minor League ◽  
Plasma Injection

Background: Oblique injuries are known to be a common cause of time out of play for professional baseball players, and prior work has suggested that injury rates may be on the rise in Major League Baseball (MLB). Purpose: To better understand the current incidence of oblique injuries, determine their impact based on time out of play, and to identify common injury patterns that may guide future injury prevention programs. Study Design: Descriptive epidemiological study. Methods: Using the MLB Health and Injury Tracking System, all oblique injuries that resulted in time out of play in MLB and Minor League Baseball (MiLB) during the 2011 to 2015 seasons were identified. Player demographics such as age, position/role, and handedness were included. Injury-specific factors analyzed included the following: date of injury, timing during season, days missed, mechanism, side, treatment, and reinjury status. Results: A total of 996 oblique injuries occurred in 259 (26%) MLB and 737 (74%) MiLB players. Although the injury rate was steady in MiLB, the MLB injury rate declined ( P = .037). A total of 22,064 days were missed at a mean rate of 4413 days per season and 22.2 days per injury. The majority of these occurred during batting (n = 455, 46%) or pitching (n = 348, 35%), with pitchers losing 5 days more per injury than batters ( P < .001). The leading side was injured in 77% of cases and took 5 days longer to recover from than trailing side injuries ( P = .009). Seventy-nine (7.9%) players received either a corticosteroid or platelet-rich plasma injection, and the mean recovery time was 11 days longer compared with those who did not receive an injection ( P < .001). Conclusion: Although the rate of abdominal oblique injuries is on the decline in MLB, this is not the case for MiLB, and these injuries continue to represent a significant source of time out of play in professional baseball. The vast majority of injuries occur on the lead side, and these injuries result in the greatest amount time out of play. The benefit of injections for the treatment of oblique injuries remains unknown.

scholarly journals Analysis of Non-Game Injuries in Major League Baseball

2019 ◽  
Vol 7 (12) ◽  
pp. 232596711988849
Author(s):  
Amanda Esquivel ◽  
Michael T. Freehill ◽  
Frank C. Curriero ◽  
Kevin L. Rand ◽  
Stan Conte ◽  
...  
Keyword(s):  
Recent Literature ◽  
Major League Baseball ◽  
Tracking System ◽  
Injury Rate ◽  
Primary Diagnosis ◽  
Professional Baseball ◽  
Baseball Players ◽  
Minor League Baseball ◽  
Minor League ◽  
Major League

Background: Numerous studies have investigated injuries and treatments in the baseball athlete. The majority of these studies have focused on the throwing shoulder and elbow. However, more recent literature is reporting injuries to other regions in this cohort, including the knee, head, hip, and hamstring. Purpose/Hypothesis: The purpose of the current study was to determine the number and type of injuries in Major League Baseball (MLB) and Minor League Baseball (MiLB) players that do not occur during the actual game but are related to baseball participation. Our hypothesis was that there would be a substantial number of injuries that occurred in professional baseball players during non-game situations. Study Design: Descriptive epidemiological study. Methods: Deidentified, anonymous data were collected from the 2011 through 2016 seasons from the MLB Health and Injury Tracking System (HITS) medical record database. All injuries that were identified as a primary diagnosis and resulted in at least 1 day out of play from both MLB and MiLB were examined. Injuries were categorized as occurring during the game (“game” injuries) or not during the game. A “non-game” injury was defined as occurring at any time other than during the scheduled game from the first to last pitch. Results: There were 51,548 total injuries in MLB and MiLB players from 2011 to 2016, almost 40% of which were attributed to non–game-related injuries (n = 19,201; 37.2%). The remainder occurred during a game (n = 32,347; 62.8%). A significantly greater percentage of non-game injuries were season ending (10.8%) compared with the percentage of game-related season-ending injuries (8.4%) ( P < .0001). Pitchers had significantly more non–game-related injuries than game-related injuries ( P < .0001). Conclusion: A large number of injuries occur in professional baseball outside of actual games. MiLB players, specifically pitchers, are particularly at risk for these types of injuries. It is feasible that the overall injury rate in professional baseball players could be reduced by analyzing these injuries in more detail to develop prevention strategies.

scholarly journals Hamstring Injury Trends in Major and Minor League Baseball: Epidemiological Findings From the Major League Baseball Health and Injury Tracking System

2019 ◽  
Vol 7 (7) ◽  
pp. 232596711986106
Author(s):  
Kelechi R. Okoroha ◽  
Stan Conte ◽  
Eric C. Makhni ◽  
Vincent A. Lizzio ◽  
Christopher L. Camp ◽  
...  
Keyword(s):  
Major League Baseball ◽  
Platelet Rich Plasma ◽  
Tracking System ◽  
Hamstring Injury ◽  
Professional Baseball ◽  
Baseball Players ◽  
Minor League Baseball ◽  
Hamstring Injuries ◽  
Minor League ◽  
Major League

Background: Hamstring strains are the most common injury for professional baseball players and can result in significant time on the disabled list. To date, no study has reported the current trends in hamstring strains in professional baseball. Hypothesis: Professional baseball players would have an increased incidence of hamstring strains from 2011 through 2016. Study Design: Descriptive epidemiology study. Methods: Injury data were prospectively collected from 2011 through 2016 for every Major League Baseball (MLB) and Minor League Baseball (MiLB) team and was recorded in the MLB Health and Injury Tracking System. Data collected for this study included date of injury, activity during injury, time lost, primary injury or reinjury status, and imaging findings as well as player demographic information related to level of play, age, and position for all hamstring injury events. Injury rates were reported as hamstring injuries per number of games. Results: From 2011 to 2016, there were 2633 hamstring strains in professional baseball players. The rate of hamstring strains increased in MLB from a low of 1 injury every 39 games in 2011 to a high of 1 injury every 30 games in 2016. In MiLB, there were 2192 hamstring strains, with 1 injury every 35 games in 2011 compared with 1 injury every 30 games in 2016. The majority of injuries occurred in the infielder positions (37.5%) and resulted from base running (>50%), most commonly from home to first base. The most common hamstring injury was a grade 2 injury to the distal biceps femoris. The mean time missed after a hamstring injury was 14.5 days. Grade 3 and grade 2 hamstring strains resulted in significantly more days missed compared with grade 1 injuries ( P = .005 and P = .002, respectively). The rate of recurrent hamstring injuries was 16.3% for MLB and 14.2% for MiLB. Recurrent hamstring injuries resulted in more time lost than primary injuries (mean, 16.4 vs 14.5 days, respectively; P = .02). A total of 42 injuries were treated with platelet-rich plasma, and 19 were treated with surgery. The number of injuries treated with platelet-rich plasma increased in successive years. Conclusion: The rate of hamstring strains in professional baseball players has increased over the past 6 years and has resulted in a significant loss of playing time. Study results indicated that these injuries are affected by injury characteristics, position played, running to first base, seasonal timing, and history of hamstring injuries.

scholarly journals Comparative Analysis of the Nonoperative Treatment of Elbow Ulnar Collateral Ligament Injuries in Professional Baseball Players with and without Platelet-Rich Plasma

2018 ◽  
Vol 6 (7_suppl4) ◽  
pp. 2325967118S0008 ◽  
Author(s):  
Peter Douglas McQueen ◽  
Christopher L. Camp ◽  
Aakash Chauhan ◽  
Brandon J. Erickson ◽  
Hollis G. Potter ◽  
...  
Keyword(s):  
Recovery Time ◽  
Platelet Rich Plasma ◽  
Ulnar Collateral Ligament ◽  
Nonoperative Treatment ◽  
Return To Play ◽  
Professional Baseball ◽  
Collateral Ligament ◽  
Baseball Players ◽  
Minor League Baseball ◽  
Minor League

Objectives: In the setting of ulnar collateral ligament (UCL) injury, surgical reconstruction of the UCL is not always selected, as it leads to a prolonged recovery time and return to play rates between 67-95%. To date, there is limited data on outcomes following nonoperative treatment in this population. Orthobiologics, such as platelet-rich plasma (PRP), have recently been used as an adjunct therapy for standard nonoperative treatment including rest and physical therapy for UCL injuries. The objective of this study was to determine if the addition of PRP injections in professional baseball players with UCL injuries reduces recovery time, lowers the likelihood of surgery, and increases the return to play rate compared to traditional nonoperative treatment. Methods: The Health and Injury Tracking System (HITS) database was searched from 2011-2015 for Major and Minor league baseball players with Grade I, II or III UCL injuries. Standard demographic, injury, and return to play data was obtained for all players. MRI’s for 353 athletes were reviewed by a musculoskeletal radiologist and graded accordingly. Outcomes were compared between players who received PRP injections in addition to traditional nonoperative treatment (PRP group) and players who received traditional nonoperative treatment alone (No PRP group). Statistical analysis was performed using Student’s T-test and Chi-square for parametric data. Kaplan Meier’s analysis was used for estimating longevity of the treatment. Results: A total of 544 Major and Minor League Baseball players with UCL tears underwent an initial course of nonoperative treatment (active rest & rehabilitation) for their injury between 2011-2015. Of these, 133 underwent PRP injections plus rehab and 411 underwent rehab alone. There was a significantly higher proportion of Major League Baseball players in the PRP group compared to the No PRP group (25.6% vs 9.0%, P<0.001). There was no difference between the two cohorts in regard to the grade of UCL tear (Figure 1). The players in the PRP group had a significantly longer time before returning to a throwing program compared to the No PRP group (64 days vs 51 days, P<0.001). The mean time from injury date to PRP injection was 14.5 days, which may explain the difference in time to return to throwing. The return to play rate in a live game without surgery was significantly lower in the PRP group compared to the No PRP group (46% vs 57%, P=0.03). There was no difference in the proportion of athletes requiring UCL reconstruction (58% vs 51%) or the time to surgery (154 days vs 178 days) between the two groups. Kaplan Meier survivor analysis showed no difference between the PRP and No PRP groups with regard to longevity of the native UCL (Figure 2). Conclusion: Among Major and Minor League Baseball players who were treated nonoperatively for a UCL injury between 2011-2015, 24% underwent PRP injections prior to rehab. Compared to traditional nonoperative rehab alone program, players who received PRP injections experienced a significantly longer time before returning to throwing, which may be in part due to the delay between the injury date and PRP injection. PRP injections did not appear to have a significant effect on the likelihood of surgical intervention.

Ankle and Lower Leg Injuries in Professional Baseball Players

2020 ◽  
Vol 48 (4) ◽  
pp. 908-915 ◽  
Author(s):  
Christopher J. Lucasti ◽  
Myles Dworkin ◽  
William J. Warrender ◽  
Brian Winters ◽  
Steven Cohen ◽  
...  
Keyword(s):  
Surveillance System ◽  
Tracking System ◽  
Lower Leg ◽  
Injury Surveillance ◽  
Professional Baseball ◽  
Injury Surveillance System ◽  
Baseball Players ◽  
Minor League Baseball ◽  
Leg Injuries ◽  
Minor League

Background: Ankle and lower leg injuries are very common in sports, and numerous studies have discussed their diagnosis and management. Our study differs in that we report lower leg injuries in professional baseball players spanning the 2011-2016 seasons by utilizing a comprehensive injury surveillance system developed by Major League Baseball (MLB). Purpose: To determine the injury characteristics of ankle and lower leg injuries in professional baseball players during the 2011-2016 seasons by utilizing the MLB injury surveillance system. Study Design: Descriptive epidemiology study. Methods: Our study is a descriptive epidemiological evaluation through a retrospective review of injury data from the MLB Health and Injury Tracking System (HITS) since its implementation in 2010. We included any professional baseball player (MLB and Minor League Baseball [MiLB]) who was identified as having an ankle or lower leg injury between January 1, 2011, and February 28, 2017. Results: Over the study period, there were a total of 4756 injuries, of which 763 (16%) occurred in MLB players and 3993 (84%) occurred in MiLB players. The mean number of days missed for all players was 27.8 ± 141.4 days, with a median of 3 days. From 2011 through 2016, it was estimated that there were 414,912 athlete exposures (AEs) in MLB and 1,796,607 AEs in MiLB. Of the 4756 injuries recorded, 550 (12%) took place during the MLB regular season, and 3320 (70%) took place during the MiLB regular season. Injuries in MLB players, however, were 1.7 times more likely to require surgery ( P < .001). Additionally, rates of injury to the lower leg were stratified by position, with infield players experiencing injuries at a 1.6 times greater rate than any other position ( P < .001). Conclusion: In conclusion, this is the only epidemiological study to focus primarily on ankle and lower leg injuries in professional baseball players, utilizing an injury surveillance system developed by MLB.

Getting Hit by Pitch in Professional Baseball: Analysis of Injury Patterns, Risk Factors, Concussions, and Days Missed for Batters

2018 ◽  
Vol 46 (8) ◽  
pp. 1997-2003 ◽  
Author(s):  
Christopher L. Camp ◽  
Dean Wang ◽  
Alec S. Sinatro ◽  
John D’Angelo ◽  
Struan H. Coleman ◽  
...  
Keyword(s):  
Odds Ratio ◽  
Tracking System ◽  
Injury Patterns ◽  
Predictive Capacity ◽  
Injury Rates ◽  
Minor League Baseball ◽  
Body Regions ◽  
Time Out ◽  
Minor League ◽  
Multiple Variables

Background: Although batters are frequently hit by pitch (HBP) in baseball, the effect of HBP injuries remains undefined in the literature. Purpose: To determine the effect of HBP injuries in terms of time out of play, injury patterns resulting in the greatest time out of play, and the value of protective gear such as helmets and elbow pads. Study Design: Descriptive laboratory study. Methods: Based on the Major League Baseball (MLB) Health and Injury Tracking System, all injuries to batters HBP during the 2011-2015 MLB and Minor League Baseball (MiLB) seasons were identified and analyzed. Video analysis was performed on all HBP events from the 2015 MLB season. Multivariate stepwise regression analysis was utilized to determine the predictive capacity of multiple variables (velocity, pitch type, location, etc) on injury status and severity. Results: A total of 2920 HBP injuries resulted in 24,624 days missed (DM) over the 5 seasons. MLB HBP injuries occurred at a rate of 1 per 2554 plate appearances (1 per 9780 pitches thrown). Mean DM per injury were 8.4 (11.7 for MLB vs 8.0 for MiLB, P < .001). Surgery was required for 3.1% of MLB injuries and 1.2% of MiLB injuries ( P = .005). The most common body regions injured were the hand/fingers (n = 638, 21.8%), head/face (n = 497, 17.0%), and elbow (n = 440, 15.7%), and there were 146 (5.0%) concussions. Injury rates and mean DM correlated with velocity in a near linear fashion. Players hit in the head/face (odds ratio, 28.7) or distal upper extremity (odds ratio, 6.4) were more likely to be injured than players HBP in other locations. Players with an unprotected elbow missed 1.7 more days (95% CI, –4.1 to 7.6) than those with an elbow protector ( P = .554) when injured after being HBP. Conclusion/Clinical Relevance: Although HBP injuries occur infrequently in the course of normal play, they collectively represent a significant source of time out of play. The most common body regions injured include the hands/fingers and head/face, and batters hit in these locations are significantly more likely to be injured. After contusions, concussions were the most common injury diagnosis.

Gastrocnemius Injuries in Professional Baseball Players: An Epidemiological Study

2020 ◽  
Vol 48 (10) ◽  
pp. 2489-2498
Author(s):  
Kristi Hultman ◽  
Patrick F. Szukics ◽  
Adrienne Grzenda ◽  
Frank C. Curriero ◽  
Steven B. Cohen
Keyword(s):  
Lower Extremity ◽  
Epidemiological Study ◽  
Tracking System ◽  
Injury Rate ◽  
Lower Extremity Injury ◽  
Professional Baseball ◽  
Extremity Injury ◽  
Baseball Players ◽  
Time Out ◽  
Common Activity

Background: Gastrocnemius injuries are a common lower extremity injury in elite baseball players. There are no current epidemiological studies focused on gastrocnemius injuries in professional baseball players that provide information on the timing, distribution, and characteristics of such injuries. Hypothesis: Gastrocnemius injury in professional baseball players is a common injury that is influenced by factors such as age, player position, and time of season. Study Design: Descriptive epidemiological study. Methods: Based on Major League Baseball’s (MLB’s) Health and Injury Tracking System (HITS) database, gastrocnemius injuries that caused time out of play for MLB and Minor League Baseball (MiLB) players during the 2011-2016 seasons were identified. Player characteristics, including age, level of play, and position at time of injury, were collected. Injury-specific factors analyzed included date of injury, time of season, days missed, and activity leading to injury. Results: A total of 402 gastrocnemius injuries (n = 145, MLB; n = 257, MiLB) occurred during the 2011-2016 seasons. MLB players were significantly older at the time of injury (30.1 years, MLB; 23.9 years, MiLB; P < .001). Base running (36.1%) was the most common activity causing the injury, followed by fielding (23.6%), with 50.3% of base-running injuries sustained on the way to first base. In MLB players, gastrocnemius injuries were most common in infielders (48.3%), followed by pitchers (27.6%) and then outfielders (17.9%), while for MiLB players the injuries were more evenly distributed (33.5%, 28.8%, and 30.7%, respectively). The frequency of injuries in MLB players dropped off after the start of the regular season, whereas MiLB players had a consistent injury rate throughout the year. Conclusion: Gastrocnemius injuries are a common cause of lower extremity injury in professional baseball players, resulting in significant time out of play. Base running, particularly to first base, was the most common activity during injury. Outfielders had the fewest injuries; however, they required the longest time to recover. This study provides the first investigation to date with the HITS database to examine the characteristics and distribution of gastrocnemius injuries in professional baseball players, offering insight into risk factors, injury prevention, and recovery expectations.

The Epidemiology and Effect of Sliding Injuries in Major and Minor League Baseball Players

2017 ◽  
Vol 45 (10) ◽  
pp. 2372-2378 ◽  
Author(s):  
Christopher L. Camp ◽  
Frank C. Curriero ◽  
Keshia M. Pollack ◽  
Stephanie W. Mayer ◽  
Andrea M. Spiker ◽  
...  
Keyword(s):  
Injury Prevention ◽  
Surgical Intervention ◽  
Elite Athletes ◽  
Epidemiologic Study ◽  
Injury Rate ◽  
Prevention Programs ◽  
Professional Baseball ◽  
Minor League Baseball ◽  
Time Out ◽  
Minor League

Background: Although sliding occurs frequently in professional baseball, little is known about the epidemiology and effect of injuries that occur during sliding in this population of elite athletes. Purpose: To describe the incidence and characteristics of sliding injuries, determine their effect in terms of time out of play, and identify common injury patterns that may represent appropriate targets for injury prevention programs in the future. Study Design: Descriptive epidemiologic study. Methods: All offensive sliding injuries occurring in Major League Baseball (MLB) and Minor League Baseball (MLB) that resulted in time out of play during a span of 5 seasons (2011-2015) were identified. In addition to player demographics, data extracted included time out of play, location on field where injury occurred, level of play, treatment (surgical vs nonsurgical), direction of slide (head vs feet first), body region injured, and diagnosis. Descriptive statistics were used to describe the distribution of these injuries, and injury rates were calculated per slide. Results: From 2011 to 2015, 1633 injuries occurred as a result of a slide. The total number of days missed per season was 4263. Surgical intervention was required for 134 (8.2%) injuries, and the mean days missed was 66.5 for players treated surgically and 12.3 days for players treated nonoperatively ( P < .001). MLB players were more likely than MiLB players to require surgical intervention (12.3% vs 7.5%, P = .019). Injuries to the hands/fingers represented 25.3% of all injuries and 31.3% of those requiring surgery. Although the majority of injuries occurred at second base (57%), the per-slide injury rate was similar across all bases ( P = .991). The estimated overall frequency of injury in MLB was once per every 336 slides, and the rate of injury for head- and feet-first slides was 1 in 249 and 413 slides, respectively ( P = .119). Conclusion: Injuries occurring while sliding in professional baseball result in a significant amount of time out of play for these elite athletes. Injuries occurring at second base and those occurring to the hands and fingers were most prevalent and may be an appropriate target for future injury prevention programs.

Epidemiology and Impact of Hand and Wrist Injuries in Major and Minor League Baseball

Hand ◽  
2019 ◽  
pp. 155894471986445 ◽  
Author(s):  
Peter Charles Rhee ◽  
Christopher L. Camp ◽  
John D’Angelo ◽  
Vishal S. Desai ◽  
Steven S. Shin ◽  
...  
Keyword(s):  
Tracking System ◽  
Return To Play ◽  
Wrist Injuries ◽  
Injury Surveillance System ◽  
Baseball Players ◽  
Minor League Baseball ◽  
Scaphoid Fractures ◽  
System A ◽  
Minor League ◽  
Major League

Background: Professional baseball players are at risk of acute and chronic injuries to their upper extremities. Methods: Major League Baseball’s Health and Injury Tracking System, a prospective injury surveillance system, was used to identify and characterize all hand and wrist injuries sustained by all Major League Baseball (MLB) and Minor League Baseball (MiLB) players during the pre-, regular, and postseason throughout 2011-2016. Injuries were included if they resulted in at least 1 day out of play and were sustained during standard baseball activities. Days missed were defined as the time between injury and the first time in which a player was cleared to return to play. Results: During the study period, there were 4478 hand and 1748 wrist injuries throughout MLB and MiLB, which resulted in a total of 105 246 days out of play. This was equivalent to the length of 575 individual MLB player seasons, and the mean days missed per injury was 17 days. Most injuries were traumatic in nature, with 43% (n = 2672) of players injured after being hit by a baseball that mainly occurred during batting (n = 2521; 40%). Injuries that most frequently required surgical intervention were hook of hamate fractures (72%) and scaphoid fractures (60%). Conclusions: Understanding the epidemiology and impact of hand and wrist injuries in MLB and MiLB players may lead to improved management of these injuries and reduce time away from play. Most importantly, preventive measures and/or enhanced protective gear may be developed to minimize these types of injuries in MLB and MiLB.

Psychological Skills as Predictors of Performance and Survival in Professional Baseball

1995 ◽  
Vol 17 (4) ◽  
pp. 399-415 ◽  
Author(s):  
Ronald E. Smith ◽  
Donald S. Christensen
Keyword(s):  
Professional Baseball ◽  
Psychological Skills ◽  
Baseball Players ◽  
Minor League Baseball ◽  
Psychological Measures ◽  
Minor League ◽  
Rating Form ◽  
Expert Ratings ◽  
Physical Skills

The role of physical and psychological skills as predictors of performance and survival in professional baseball was studied in a sample of 104 minor league baseball players. Psychological and physical skills were largely uncorrelated with one another and appear to be measuring separate and independent skill domains. Preseason scores on the Athletic Coping Skills Inventory (ACSI-28) and coaches’/managers’ ratings of the same skills on an ACSI Rating Form each accounted for as much performance variance in batting average (approximately 20%) as did physical skills when differences in the latter were statistically controlled, and the psychological measures accounted for substantially more variance in pitchers’ earned run averages than did the expert ratings of physical skills. The psychological skills measures also predicted athletes’ survival in professional baseball 2 and 3 years after they were obtained. Bayesian hit rate anlayses indicated substantially increased survival predictability over simple base rate predictions.

Patterns of Specialization in Professional Baseball Players

2014 ◽  
Vol 8 (3) ◽  
pp. 261-275 ◽  
Author(s):  
Richard D. Ginsburg ◽  
Steven R. Smith ◽  
Nicole Danforth ◽  
T. Atilla Ceranoglu ◽  
Stephen A. Durant ◽  
...  
Keyword(s):  
Late Adolescence ◽  
Developmental Pathways ◽  
Professional Baseball ◽  
Baseball Players ◽  
Common Assumption ◽  
Minor League Baseball ◽  
Minor League ◽  
The Mean ◽  
Early Specialization ◽  
To Receive

Two developmental pathways to sport excellence have been described: early specialization and early sampling (Côté, Lidor, & Hackfort, 2009). Despite a common assumption that early specialization (defined as playing one sport exclusively and intensely before age 12) is a necessary precursor to success at the collegiate or professional levels, research to support this assumption remains unclear. To add to this literature, the current study was a survey of 708 minor league professional baseball players on the ages at which they began to specialize in their sport. Results indicated that most players sampled a diversity of sports up through late adolescence. Only 25% of players specialized before the age of 12 and the mean age of specialization was 15 years. Furthermore, those who specialized later were more likely to receive college scholarships. Finally, we examined patterns of specialization as a function of athletes’ home climate and culture. At least in this sample of professional minor league baseball players, an early sampling pathway seems to have fortified success at both the collegiate and professional levels.

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